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GMC Tech 2 User Manual

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Tech 2 User's Guide
CONTENTS
©2005 GM Service and Parts Operations

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  • Page 1: Table Of Contents

    RETURN TO MAIN MENU E-mail:autocardiag@gmail.com Skype:Marshall.obd2 Whatsapp:86-13476108995 www.autocardiag.com Tech 2 User’s Guide CONTENTS I. Introduction II. Care & Cleaning III. Getting Started IV. Power Supply V. Adapters VI. Troubleshooting VII. Software ©2005 GM Service and Parts Operations...
  • Page 2 RETURN TO MAIN MENU Tech 2 User’s Guide The Tech 2 User’s Guide provides a comprehensive overview of the Tech 2 scan tool. Everything contained in this manual is based on the latest product information available at the time of publication.
  • Page 3 Prepare a brief description of the problem: • Tell when the problem occurred • List any error codes displayed • Tell what accessories were being used when the problem occurred, and vehicle information Please see next page... 2005 Tech 2 User’s Guide...
  • Page 4 Any problems that cannot be resolved over the phone will be directed to the appropriate group for resolution. * You may also send a GM-Techline Product Assistance fax form to the Customer Support Center. 2005 Tech 2 User’s Guide...

  • Page 5: Declaration Of Conformity

    The product herewith complies with the requirements of the Low Voltage Directive 73/23/EEC and the EMC Directive 89/336/EEC. Location: Santa Barbara, California Date: 3 / 19 / 01 QA Manager: David Parker, Product Regulations 2005 Tech 2 User’s Guide...

  • Page 6: Limited Warranty

    EXCLUSIVE REMEDIES: The remedies provided above are Customer’s sole and exclusive remedies. In no event shall Vetronix be liable for any direct, indirect, special, incidental or consequential damages (including lost profit) whether based on warranty, contract, tort or any other legal theory. 2005 Tech 2 User’s Guide...

  • Page 7: Introduction

    IMPORTANT Tech 2 figures and illustrations are hyperlinked to the text of this manual. To view a figure, simply click on its description, which is shown in blue text. After viewing the figure, click on the rainbow-colored arrow at the lower left-hand corner of the screen to return to your place in the manual.
  • Page 8 CAUTION: SPARKS The Tech 2 uses parts that can produce arcs or sparks. When used in a garage environment, the Tech 2 must be located not less than 18 inches (460 mm) above the floor.
  • Page 9 • Make sure all cables and adapters are firmly connected before starting to use the Tech 2. • Always read the instructions completely before attempting a new procedure. • The RS-232 and RS-485 ports must not be connected to a direct phone line as the Tech 2 was not designed for this method of communication.
  • Page 10 VDE Certification (for European Use) This equipment complies with the requirements of VDE 0871/6.78. Improper use or maintenance neglect may cause unacceptable radio or TV interference. 2005 Tech 2 User’s Guide I - 4...
  • Page 11 • A sturdy case • A sealed keypad • Heavy-duty cables and connectors You can expect years of trouble-free service if you take reasonable care of the Tech 2 and follow the maintenance procedures outlined in Section II. Figure I-2...

  • Page 12: Data Storage

    Data Storage The Tech 2 contains electronic components called PCMCIA (Personal Computer Memory Card Industry Association) cards, which store diagnostic programs. The Tech 2 can be updated as vehicle models change by reprogramming the PCMCIA card via the RS-232 connector.

  • Page 13: Mechanical Dimensions

    RETURN TO MAIN MENU SECTION I INTRODUCTION Mechanical Dimensions The dimensions of the Tech 2 are as follows: • Width – 6.1 inches (155 mm) • Height – 11.8 inches (300 mm) • Depth – 2.0 inches (55 mm) • Weight – 2.2 pounds (1.0 kg)
  • Page 14 If your Tech 2 must be sent in for repair, a replacement will be sent to your dealership prior to the return of the failed Tech 2. Use the package that the replacement arrives in to return the defective unit. You can contact Customer Support at 1-800-828-6860 for the exact exchange procedure.

  • Page 15: Care & Cleaning

    CARE & CLEANING Care and Cleaning After using the Tech 2, a few simple steps will insure that you get the most life out of this diagnostic tool. NOTICE Do not spray or pour cleaner anywhere on the Tech 2. If the Tech 2 should become dirty, clean it with a mild detergent or hand soap.
  • Page 16 • Store the Tech 2 away from solvents and other liquids. It is NOT moisture proof. • Store the Tech 2 away from direct sunlight. Ultraviolet and infrared light will darken the display. • Store the Tech 2 in its plastic case. Otherwise, the high-impact plastic cover could become scratched.

  • Page 17: Getting Started

    This section covers all Tech 2 vehicle applications. Therefore, some of the information provided may not be required for individual applications. The Tech 2 contains two serial communication ports: the RS-232 and the RS-485. Use the RS-232 port for downloading data from another computer to the Tech 2. The RS-485 port is currently not used.
  • Page 18 III-6). 5. Turn on power by pressing the PWR button located on the Tech 2 keypad. 6. Tech 2 hardware will be verified automatically by the POST test. (For information on this program, refer to Section VI - Troubleshooting.) 7. Disconnect the RS-232 loopback adapter, the power supply, and the DLC loopback adapter and return...
  • Page 19 PCMCIA Card Removal The PCMCIA Card is accessed by opening the hinged door located at the top of the Tech 2. The card is found in the upper slot. The lower slot will be used for future enhancements. Press the arrow button...
  • Page 20 GETTING STARTED Vehicle Communications Interface Module Removal The Vehicle Communications Interface (VCI) module is located at the lower end of the Tech 2. Removal of this module is required only if the VCI needs to be updated or replaced. To remove the module disconnect Tech 2 DLC cable if attached, move the lever...
  • Page 21 5. Function keys (F0 to F9) 6. Help (?) key Control Keys The [PWR] key is used to turn the Tech 2 on or off (Figure III-15). The status indicator light above this key will be illuminated green when the Tech 2 is operational.

  • Page 22: Soft Keys

    III-16). The soft keys correspond directly to the four possible selection boxes found at the bottom region of the Tech 2 screen. These selections may change from screen to screen and are under the control of the application software. To make a screen selection, press the corresponding soft key.

  • Page 23: Help Key

    SECTION III GETTING STARTED Action Keys Action keys are used to respond to a specific question, initiate an action, or to exit from the Tech 2 program (Figure III-20). Specific “yes or no” questions will often appear on the Tech 2 screen. The [YES] and [NO] keys are used to respond to these questions.
  • Page 24 SECTION III GETTING STARTED Tech 2 Connection to Vehicle The Tech 2 receives power through the DLC cable connection to vehicles equipped with On-Board Diagnostics (OBD II) (Figure III-23). In the case of vehicles not equipped with OBD II, an external power...
  • Page 25 GETTING STARTED Tech 2 Connection to Techline Terminal At times the Tech 2 will need to be connected to a terminal. Reasons for connection to a terminal include the following: • Transfer of vehicle data (calibration information, “snapshot,” etc.) from the Tech 2 to the terminal •...

  • Page 26: Power Supply

    2. Plug the Tech 2’s RS-232 cable into the serial port / USB port adapter and connect the appropriate power supply. 3. After power is supplied to the Tech 2 and the [PWR] button is pressed, the Tech 2 start-up display should appear on the Tech 2 screen (Figure III-27).

  • Page 27: Power Supplies

    Proper grounding may not be present if power source is connected directly to Tech 2. When the Tech 2 is connected to the DLC of an appropriate vehicle, the vehicle battery supplies power. When the Tech 2 is not connected to the vehicle’s DLC, the DLC cable power jack connector accepts power from the following: •...
  • Page 28 This cable has red and black battery clamps attached to one end and a power jack attached to the other (Figure IV-1). The power jack connects to the Tech 2 DLC cable and carries current to the Tech 2 when the selected vehicle adapter does not provide power and there is no cigarette lighter adapter available.
  • Page 29 SECTION IV POWER SUPPLIES NAO Power Supply North American electrical supply is normally 110 volts. The Tech 2 base kit includes an external AC to DC power supply with 110 V AC/60 Hz input (Figure IV-2). Output is 12 volts at 1.5 amps.

  • Page 30: Adapters

    The DLC cable (P/N 3000095) has a 26-pin connector with thumb screws at one end that connects to the Tech 2’s VCI cable connector. At the other end is a 19-pin connector that connects to a variety of adapters (Figure V-1 Figure V-2).
  • Page 31 V-4). This adapter allows the connection of the Tech 2 to some terminals. Figure V-4 RS-232 DB9 adapter connections RS-232 Loopback Adapter The loopback adapter (P/N 3000112) has an 8-pin RJ45 connector that attaches to the Tech 2 RS-232 port (Figure III-2). It is used to perform the Tech 2 self test.

  • Page 32: Troubleshooting

    TROUBLESHOOTING Troubleshooting Section VI is a general troubleshooting guide for all vehicle applications of the Tech 2 scan tool. Some of the information may differ for your particular vehicle application. If the Tech 2 appears to be operating abnormally, refer to this section—particularly the diagnostic charts and troubleshooting tables beginning on page VI-6—for probable causes and solutions.
  • Page 33 Power On Self Test (POST) Power On Self Tests run automatically each time the power [PWR] button on the Tech 2 keypad is pressed on. The screen displays pass or fail results for each area tested. POST automatically checks the following: •...

  • Page 34: Figure Vi

    Tech 2 Self Tests Tech 2 self tests verify that the Tech 2 is functioning normally. The self tests evaluate all critical areas of the Tech 2 and display pass or fail messages for each subsystem tested. Self tests isolate user error from system hardware failures.

  • Page 35: Figure Vi

    SECTION VI TROUBLESHOOTING Tech 2 Self Test Main Menu Each Tech 2 Self Test main menu selection is explained in detail on the following pages. All users have access to all the options listed, which are shown in Figure VI-5.

  • Page 36: Figure Vi

    Refer to figures VI-9 and VI-10 (next page) for help in diagnosing problems that involve the PCB and VCI. If the Tech 2 passes all Automated Main PCB and VCI tests, you will not need to run any more tests to verify that the Tech 2 is working properly.
  • Page 37 Figure VI-10 Diagnostic chart for Tech 2 Vehicle Communications Interface (VCI) module Figure VI-11 Automated Main PCB test selected on Tech 2 Self Test main menu Figure VI-12 Automated VCI test selected on Tech 2 Self Test main menu 2005 Tech 2 User’s Guide...

  • Page 38: Figure Vi

    For specific information on failed components, refer to the Main Printed Circuit Board (PCB) Diagnostic Chart (Figure VI-9). Figure VI-13 Selectable Main PCB test selected on Tech 2 Self Test main menu Figure VI-14 Selectable Main PCB Self Test screen 2005 Tech 2 User’s Guide...

  • Page 39: Figure Vi

    Selectable VCI test selected on Tech 2 Self Test main menu Figure VI-16 First selectable VCI Self Test screen Figure VI-17 Second selectable VCI Self Test screen Figure VI-18 Power On Self Test Results selected on Tech 2 Self Test main menu 2005 Tech 2 User’s Guide VI - 8...

  • Page 40: Figure Vi

    VI-21, and Figure VI-22—to diagnose, isolate, and correct power source problems that may cause a No Power condition to your Tech 2 scan tool. To help determine power supply source, see Section IV - Power Supplies. Figure VI-19 Troubleshooting table for DLC cable “No Power”...

  • Page 41: Tech 2 User's Guide Vi

    (Figure VI-23). When required, check or replace the fuse by performing the following steps: 1. Ensure cigarette lighter power cable is not connected to vehicle or Tech 2. 2. Unscrew fuse retainer cap and remove three-amp fuse. 3. Inspect fuse for damage and replace with identical three-amp fuse if required.
  • Page 42 VI-24). When required, check or replace the fuse(s) by performing the following steps: 1. Ensure battery power cable is not connected to vehicle battery or Tech 2. 2. Use a standard fuse puller to remove the fuse(s) from the fuse box.
  • Page 43 Tech 2 and attempt to reprogram the CANdi module again. If the problem persists, incorrect CANdi software may be present on the Tech 2 PCMCIA card. Connect the Tech 2 to the TIS terminal and download a new version of the software.
  • Page 44 VI-15. It is also possible to connect a CANdi module after the Tech 2 has been powered up via the VCI. If this occurs, the Tech 2 will not detect CANdi module and will not properly communicate, even if the LED is flashing on the CANdi module.
  • Page 45 RETURN TO MAIN MENU SECTION VI TROUBLESHOOTING CANdi Module Diagnostics Select “CANdi Diagnostics” from the Tech 2’s Tools Options menu (Figure VI-29), and the screen shown in Figure VI-30 appears. If the CANdi module is not connected, the screen shown in Figure VI-27 appears.
  • Page 46 GM adapters, they will not work with the CANdi module. 2. Verify that the Tech 2 passes all stand-alone self-tests. Replace the Tech 2 if it fails. If the Tech 2 passes, proceed to step three.
  • Page 47 Replace the DLC cable if it does not function properly. Call the Techline Customer Support Center (TCSC) at 1-800-828-6860 for more information if you have trouble with this test. Continued on next page... 2005 Tech 2 User’s Guide VI - 16...
  • Page 48 SECTION VI TROUBLESHOOTING 5. Connect the CANdi module to the Tech 2. Connect the system (Tech 2 and CANdi module) to a vehicle and power on the Tech 2. Verify that the LED on the CANdi module is flashing. If the LED does not flash or light up at all, it may be defective and you should proceed to step six.
  • Page 49 If determined to be non-warranty, the product will be repaired for a nominal service fee, plus freight costs. Part numbers - CANdi module: J-45289 (SPX), 3000164 (GM), 02003039 (Vetronix) Connectors: 12-pin #3000099 and loop back #3000109 2005 Tech 2 User’s Guide VI - 18...
  • Page 50 Tech 2, any software updates for the CANdi module will download to the PCMCIA card. The CANdi module will automatically receive updates each time it is connected to the DLC and Tech 2 at power-up. Therefore, it is very important that you always run the latest available software version when using the CANdi module.

  • Page 51: Software

    RETURN TO MAIN MENU SECTION VII SOFTWARE Software Section VII contains a description of software related to the Tech 2 in four subsections: Tech 2 Main Menu and Live Plot, beginning on page VII-2 Techline Information System (TIS), beginning on page VII-14...
  • Page 52 RETURN TO MAIN MENU SECTION VIIA TECH 2 MAIN MENU & LIVE PLOT Tech 2 Main Menu Five primary functions or “paths” are available on the Tech 2’s Main Menu: Diagnostics, Service Programming System, View Captured Data, Tool Options, and...
  • Page 53 SECTION VIIA TECH 2 MAIN MENU & LIVE PLOT Diagnostics Selecting Diagnostics from the Tech 2 Main Menu and identifying the vehicle as shown below gives you access to four major systems: Powertrain, Body, Chassis, and Diagnostic Circuit Check (Figure VIIA-2).
  • Page 54 Continue (soft key) with Instructions VIN Verification (Y/N) Procedural Instructions Screen View Captured Data Selecting View Captured Data from the Tech 2 Main Menu results in the selections shown below. F2: VIEW CAPTURED DATA Capture Info Snapshot Select Items, Plot, Select Frame, Auto Reverse, Stop, Auto Forward...
  • Page 55 F6: Set Communication By-Pass Mode F7: Make Duplicate PCMCIA Card F8: Set Language F9: CANdi Diagnostics These features—described in more detail on the following pages—are useful for controlling various Tech 2 settings including the self tests and CANdi diagnostics. Figure VIIA-3 Tool Options menu Tool Options continued on next page...
  • Page 56 (Figure VIIA-4) appears, you can set the internal Tech 2 real-time clock in two ways: 1. Use the up and down arrow keys to move the cursor to desired selection. Press [ENTER] to change the value. Each time [ENTER] is pressed the value will be increased by one unit until a preset maximum unit is reached.
  • Page 57 Because of the nature of the LCD (Liquid Crystal Display), you will experience some contrast variance. When the temperature of the Tech 2 increases the display will brighten slightly. As the temperature of the Tech 2 decreases, the display will darken. This variance is a characteristic of an LCD screen and should be considered normal operation.
  • Page 58 Tech 2 is functioning normally. Refer to Section VI - Troubleshooting for more information on this area. Power Down Screen. After completion of any Self Test, return to the Tech 2 Self Test menu screen. After pressing [EXIT], a screen will appear instructing you to turn the Tech 2 power off (Figure VIIA-7).
  • Page 59 Highlight the desired setting using the up or down arrow keys, then press [ENTER] to change the current mode. The Tech 2 will default to the Disable mode after it has been powered off.
  • Page 60 PCMCIA cards, and the arrows indicate the direction of the data flow. Slot 1 is defined as the slot closest to the Tech 2 display. Use the Copy soft key to initiate the duplication process.
  • Page 61 F3: Programming Tech 2 - This option provides instructions for downloading from a PC to the Tech 2 scan tool. Due to a specific sequence of events in the evolution of the Tech 2, this option duplicates the Programming Tech 2 function of the Tool Options Menu, as described on page VII-9.
  • Page 62 Live Plot Live Plot is a Tech 2 feature that allows data display parameters to be graphed in real time as it happens. The Live Plot function will allow up to three parameters to be plotted on a graph at one time. The data of these parameters will be plotted as the information is received on the Tech 2 from the vehicle.
  • Page 63 Live Plot, a snapshot also can be triggered the same way it is in the Snapshot mode. NOTE: Be sure to update your Tech 2 with the latest TIS software as soon as it is available. 2005 Tech 2 User’s Guide...

  • Page 64: Figure Viib

    Techline Information System (TIS) is a component-oriented service information delivery system that allows technicians to perform SPS, update the Tech 2, and view Tech 2 snapshot data in a Windows environment. Refer to the model of a Techline information system in Figure VIIB-1.

  • Page 65: Figure Viib

    Tech 2 View Tech 2 View is an application that enables you to view Tech 2 screens on your PC. Tech 2 View can aid Technical Assistance when diagnosing tool problems and can also be useful in Tech 2 training classes.
  • Page 66 Cards are notched to allow insertion only one way. When reinserting the card make sure that it fully seats into the Tech 2. The PCMCIA card fits into Slot 1, which is closest to the screen. The second slot is identified as Slot 2.
  • Page 67 Slot 1, closest to the screen, with Slot 2 reserved for future use. Vehicle on-board computer capabilities multiply with each new model year, and the Tech 2 has had to keep pace. The capacity of the 10-MB card reached its limits, and it was time to expand again.

  • Page 68: Figure Viib

    4. From the TIS main screen (Figure VIIB-2), select Software Download. 5. At the “Select Diagnostic Tool for Download” screen, select Tech 2 and “Standard” (Figure VIIB-5) to install the newest software on the scan tool. After confirming the selection, select Next. A message will appear indicating the PC is reading the contents of the diagnostic tool.
  • Page 69 8. When the download is complete, a “Download Finished” screen appears (Figure VIIB-8). Select Close to close the application. The scan tool now contains the latest software. Figure VIIB-7 “Performing the Software Download” screen Figure VIIB-8 “Download Finished” screen 2005 Tech 2 User’s Guide VII - 19...
  • Page 70 TIS SOFTWARE Tech 2 Custom Update Procedure To perform a custom Tech 2 update to backdate the scan tool or install different language software: 1. Connect the scan tool to the PC using the RS-232 cable (refer to the illustration in Figure VIIB-4).

  • Page 71: Tech 2 User's Guide Vii

    3. View the snapshot(s) using the TIS Snapshot Upload/Display function. The following procedures describe how to capture, upload and view a snapshot. Capturing a Snapshot of the Vehicle Data Stream 1. Connect the Tech 2 to the vehicle Data Link Connector (DLC) as shown in Figure III-23.
  • Page 72 F6: End sets the trigger point at the end of the snapshot recording and therefore shows only information leading up to and including the fault. 6. Press the Record Snapshot soft key. The Tech 2 screen will display the flashing message “standby.” • When the fault occurs, press the Trigger soft key.
  • Page 73 Upload from Handheld icon on the Snapshot toolbar (refer to Figure VIIB-15). 4. Select Tech 2 on the “Upload from a Handheld Device” window, verify that the Tech 2 is connected to the terminal, and then select OK (Figure VIIB-14).
  • Page 74 • Forward One Frame. Moves the snapshot forward to the next frame. • Last Frame. Displays the last frame in the snapshot. • Stop Play. Stops a continuous play snapshot at the frame displayed at the time of selection. 2005 Tech 2 User’s Guide VII - 24...
  • Page 75 A default (single- or two-column mode) can be set by selecting Options from the menu bar. Figure VIIB-16 Snapshot single-column display mode 2005 Tech 2 User’s Guide VII - 25...
  • Page 76 VIIB-18), click-and-drag the scroll box or use the scroll arrows. Figure VIIB-17 “View DTC Information” icon selected on the Snapshot toolbar Figure VIIB-18 DTC display mode (“2 of 4”) Displaying DTCs continued on next page... 2005 Tech 2 User’s Guide VII - 26...
  • Page 77 Frame” or “Reverse One Frame” selections to view the frames just before and after the trigger frame. Chances are the DTC will appear within these frames. If not, continue viewing the snapshot using the “Play Forward” or “Play in Reverse” selections. 2005 Tech 2 User’s Guide VII - 27...
  • Page 78 VIIB-19) to advance to the first frame of the DTC. In DTC change mode, selecting the forward or reverse arrows will move the application to only the frames in which a DTC was set. Figure VIIB-19 “DTC Change” icon selected while in DTC display mode 2005 Tech 2 User’s Guide VII - 28...
  • Page 79 Axis Value” fields. These may need to be adjusted to reflect the normal range of values for the parameter — for example, 0 to 5 volts for MAP sensor. Figure VIIB-20 Figure VIIB-21 “Display Graph” (three) icon selected Graph Parameters window Displaying Graphs continued on next page... 2005 Tech 2 User’s Guide VII - 29...
  • Page 80 Each parameter is color-coded (Figure VIIB-24), and you can change the background color to improve visibility (compare Figure VIIB-23 with Figure VIIB-24). Figure VIIB-24 Six-graph display screen showing “Display Graph” (six) icon selected 2005 Tech 2 User’s Guide VII - 30...
  • Page 81 Figure VIIB-25 Figure VIIB-27 “Lock/Unlock Parameters” icon selected Multiple display modes Figure VIIB-26 Selected parameter shown above “lock line” 2005 Tech 2 User’s Guide VII - 31...
  • Page 82 When Capture Info is selected (refer to p. VII-4), the scan tool displays a menu selection that allows data from the control module to be stored to the Tech 2 PCMCIA card, or to refresh the PCMCIA card with new data from a control module.
  • Page 83 (Figure VIIB-15). • Select Tech 2, then click OK. • Select Capture Data from upload selection menu, then click OK. 6. The data will display on screen. The top of the screen lists DTCs that were stored in the control module.
  • Page 84 DTCs, symptoms, repair order, etc. The next time a file is opened, this information will aid in locating the correct file. Figure VIIB-30 “Save Snapshot” icon selected Figure VIIB-31 Save a Snapshot to Disk window 2005 Tech 2 User’s Guide VII - 34...

  • Page 85: Print" Icon Selected On Snapshot Toolbar

    Figure VIIB-32 “Print” command selected from the File menu Figure VIIB-33 “Prints a screendump” icon selected on TIS toolbar Figure VIIB-34 “Print” icon selected on Snapshot toolbar 2005 Tech 2 User’s Guide VII - 35...
  • Page 86 The ECM/PCM controller can generally use four types of serial communications: • UART (Universal Asynchronous Receive and Transmit) • Class 2 • Keyword • CAN – GM LAN (recent communications application currently available only on a few limited applications) 2005 Tech 2 User’s Guide VII - 36...
  • Page 87 A VCI number does not allow you to access calibrations that are designated “Not Selectable.” It is important to ensure you have the correct VCI number to access the calibrations before reprogramming. Figure VIIC-1 About TIS window shown in foreground of TIS Application Selection screen 2005 Tech 2 User’s Guide VII - 37...
  • Page 88 • Off-Board Remote Programming • Off-Board Pass-Thru Programming For a complete representation of the Tech 2 interface screens while performing remote SPS, see Tech 2 SPS User Interface Screens and Functionality on pages VII-47 to VII-49. Regardless of the vehicle involved, the general three-part process for SPS programming is as follows: 1.
  • Page 89 Prior to performing SPS, it is important to heed the following precautions: • Using an outdated version could damage vehicle modules. The Tech 2 and the terminal must have the latest software. • Make sure the vehicle battery is fully charged. Battery voltage for SPS should be between 12 and 14 volts. However, a battery charger must not be connected to the vehicle when using the Tech 2.
  • Page 90 (Figure VIIC-14). IMPORTANT If a VIN was previously stored in the Tech 2, press Request New Info (soft key), and follow the on- screen directions. Follow the on-screen instructions. After the vehicle description is entered, turn off all power consuming devices, then press Continue (soft key).
  • Page 91 (You would select Information Only/PROM data to get calibrations for a particular vehicle without using the Tech 2, or to get PROM data for vehicles that cannot be programmed. You would select Pass-Thru to perform SPS without disconnection from the vehicle or the terminal.) •...
  • Page 92 Select Cancel if you receive a message stating that the calibration selected is already the current calibration in the control module, and reprogramming with the same software calibrations is not allowed. Performing Remote SPS, Step 2, continued on next page... 2005 Tech 2 User’s Guide VII - 42...
  • Page 93 Then select Next. Figure VIIC-6 PCM calibration file selection Figure VIIC-7 VCM calibration file selection Figure VIIC-8 Incomplete calibration selection message Performing Remote SPS, Step 2, continued on next page... 2005 Tech 2 User’s Guide VII - 43...
  • Page 94 Click OK and Back out or click Cancel on the Summary screen. 2.12 The application will automatically initiate the download of the new calibration file to the Tech 2, and a Transfer Data screen (Figure VIIC-11) will track the progress of the download.
  • Page 95 SECTION VIIC SERVICE PROGRAMMING SYSTEM STEP 3: Transfer Data from the Tech 2 to the Control Module With the Tech 2 and vehicle both off, connect the Tech 2 to the vehicle DLC (Figure III-23). Power on the Tech 2. At the Tech 2 title screen, press [ENTER].
  • Page 96 If the vehicle does not start or starts but runs rough, repeat the SPS procedure. IMPORTANT Some vehicles will require that Idle Learn, TP Learn, Theft Deterrent Relearn, or Crankshaft Variation Learn procedures be performed after programming. Consult the appropriate service information for these procedures. 2005 Tech 2 User’s Guide VII - 46...
  • Page 97 Programming. Follow the steps to perform remote SPS using the Tech 2 scan tool and TIS software. Requesting Information 1. At the Tech 2 title screen, select Enter. To execute the SPS application, press F1 on the Tech 2 keypad or highlight Service Programming System on the Main Menu screen...
  • Page 98 (Figure VIIC-20) displays a VIN and software calibration number(s). It also asks if the VIN is correct. Select either Yes or No using the Tech 2 keys. In this example, Yes is selected. Note: If No is selected, follow all on-screen instructions. After going to the PC, continue with step 10.
  • Page 99 SERVICE PROGRAMMING SYSTEM Programming 10. After downloading information from the PC to the Tech 2, return to the vehicle. At the Tech 2 title screen, select Enter. To execute the SPS application, press F1 on the Tech 2 keypad or highlight...
  • Page 100 Figure VIIC-28). Figure VIIC-28 Vehicle to terminal pass-thru connection IMPORTANT: TIS supports Service Programming with the Tech 2 scan tool only. Pass-Thru Programming Procedure 1. Launch TIS. 2. From the TIS main screen (Figure VIIB-2), select the Service Programming System icon.
  • Page 101 If the vehicle identification number (VIN) does not appear correctly, the correct VIN must be entered. Figure VIIC-30 Preparing for Communication “Determine Vehicle” screen Figure VIIC-31 Preparing for Communication instruction screen Pass-Thru Programming continued on next page... 2005 Tech 2 User’s Guide VII - 51...
  • Page 102 Select the correct tire size and axle ratio, then select OK. The VCI number entry box appears (Figure VIIC-32). Enter a valid VCI number for this vehicle and select OK. Figure VIIC-32 Figure VIIC-33 VCI number entry box Reconfigure box Pass-Thru Programming continued on next page... 2005 Tech 2 User’s Guide VII - 52...
  • Page 103 • The Transfer Data screen appears (Figure VIIC-11) as reprogramming begins, finishing when the percentage bar reaches 100 per cent. This may take up to 30 minutes. Pass-Thru Programming continued on next page... 2005 Tech 2 User’s Guide VII - 53...
  • Page 104 TIS main screen. Be sure to verify successful reprogramming. Refer to Verifying Reprogramming on page VII-46. 11. Turn off the Tech 2. 12. Disconnect the Tech 2 from the vehicle. Figure VIIC-34 Program Controller “Programming Complete” screen (pass-thru) 2005 Tech 2 User’s Guide...
  • Page 105 OBPA kit is J-41207-C. It is available for purchase by calling 1-800-GM-TOOLS (1-800-468-6657), or send your order by fax at 1-800-578-7375. NOTICE Prior to performing SPS, it is important to heed the following precaution. Ensure that the Tech 2 and the terminal are both equipped with the latest software. Off-Board Remote Programming Procedure 1.
  • Page 106 OBPA, and Tech 2. Be sure to use the correct connector for the control module. 5. With the connection screen still up on the PC, go to the Tech 2 and select the Service Programming “Request Information” function. Follow the Tech 2 instructions to obtain module data and security information.
  • Page 107 15. After the download is complete, a Program Controller screen appears (Figure VIIC-36). Follow the on-screen instructions (if any), then select Close, power down and disconnect the Tech 2 from the PC. Note: Most GM vehicles require you to perform the crankshaft position variation relearn procedure. Figure VIIC-36 Program Controller screen (OBPA) OBPA Remote SPS Procedure continued on next page...
  • Page 108 VIIC-23), press the Continue soft key. Follow the Tech 2 on-screen instructions, then press the Continue soft key. 17. When programming is complete, press [EXIT] on the Tech 2, power off the OBPA, then power off the Tech 2. IMPORTANT Wait 30 seconds after OBPA is shut off before disconnecting the control module in order to allow the controller to reset.
  • Page 109 • To help avoid possible controller failure, make sure all cable connections are secure. Off-Board Pass-Thru Programming Procedure 1. Connect the OBPA to the Tech 2 and the PC. 2. Launch TIS. Click the Service Programming System icon on the TIS main screen (Figure VIIB-2).
  • Page 110 7. If the Options screen appears (Figure VIIC-40), select the appropriate options. Select Next, and select subsequent options that apply. Figure VIIC-40 Options screen OBPA Pass-Thru SPS Procedure continued on next page... 2005 Tech 2 User’s Guide VII - 60...
  • Page 111 Note: On model year ‘96 and newer controllers, a crankshaft position variation relearn procedure box may appear on the Program Controller screen (Figure VIIC-36). Select Close. OBPA Pass-Thru SPS Procedure continued on next page... 2005 Tech 2 User’s Guide VII - 61...
  • Page 112 13. Power off the OBPA, then power off the scan tool (wait 30 seconds after OBPA is shut off before disconnecting the control module in order to allow the controller to reset). 14. Disconnect the OBPA from the Tech 2 and the control module. (Refer to figures VIIC-37 and VIIC-38.) 2005 Tech 2 User’s Guide...
  • Page 113 (Figure VIIC-41), also called the PCM programming adapter harness, is used to connect the Tech 2 to a vehicle’s PCM and perform SPS functions for the 2000 or later Cadillac models DeVille, Seville, and Eldorado. The J-45211 isolates the PCM from a vehicle’s electrical system so that the activity of other on-board computers cannot interrupt the communication between the Tech 2 and the PCM.
  • Page 114 14. Turn off the Tech 2 and disconnect it from the J-45211. 15. Connect the Tech 2 to the Techline terminal. Download the new PCM calibration into the Tech 2 using the Techline terminal and TIS software. After the download into the Tech 2 is complete, disconnect the Tech 2 from the Techline terminal.
  • Page 115 23. Connect the Tech 2 to the DLC connector under the instrument panel, and start the engine. 24. Turn the Tech 2 on, “build” the vehicle, and select Diagnostic Circuit Check, then Clear All DTCs. Note: This will clear all DTCs in all control modules simultaneously.
  • Page 116 7. Select the splice pack (star connector) cable #1 on the J-42236-A toggle switch. 8. Select position B on the J-42236-A. Proceed with normal programming procedures. Figure VIIC-42 Serial data link tester J-42236-A 2005 Tech 2 User’s Guide VII - 66...
  • Page 117 Controller Area Network diagnostic interface (CANdi) has been developed to address these needs. The CANdi module (Figure VIID-1, Figure VIID-2) serves as an enhancement to the Tech 2 and completes the interface necessary to communicate with future on-board computer systems. Figure VIID-1 Controller Area Network diagnostic interface (CANdi) module Figure VIID-2...

  • Page 118: Basic Operation

    The module powers up in a way that makes it transparent to the user. This allows the existing Tech 2 software to be used with no changes when the CANdi module is installed. If a vehicle requires the use of a CANdi module, the Tech 2 will enable features specific to the module.
  • Page 119 Connection of CANdi Module to Tech 2 The CANdi module connects to the Tech 2 by the existing Burndy data link connector (DLC). The vehicle side connection remains unchanged using the existing adapter to interface between the DLC cable and...
  • Page 120 Software updates for the CANdi module are stored on the 32-megabyte PCMCIA card. The CANdi module will be automatically updated when it is connected to the vehicle’s DLC and the Tech 2 is powered on. When a CANdi module is updated, the screen shown in Figure VI-25 will be displayed.
  • Page 121 When instructed by Customer Support (after troubleshooting guide has been followed) to ship defective units to a Vetronix repair facility (e.g. Custone Electromotive or Getronics), the CANdi unit will be repaired or replaced with a new one within 48 hours and shipped back to the dealer. 2005 Tech 2 User’s Guide VII - 71...
  • Page 122 Screen 4 7. Insert the DLC Burndy cable into the Tech 2/VCI and the DLC loopback adapter at the end of the cable and repeat the tests listed above. (Note: When running the VCI TPU test, TPU12 and TPU15 must show up as pass. If they indicate, “fail,” or if they are not present on the screen, then the cable might be damaged.
  • Page 123 RETURN TO MAIN MENU 1. Keypad 2. Power on and off button 3. DLC cable connection 4. VCI (Vehicle Communications Interface) latching lever 5. Adjustable strap 6. Tilt stand 7. Display...
  • Page 124 RETURN TO MAIN MENU Your Tech 2 will be composed of a base kit and a variety of the following subcomponents: Product Number Product Name 3000094 GM Tech 2 Unit Part Number Base Kit 3000095 DLC cable 3000096 Cigarette lighter power cable...
  • Page 125 J-45211 Control module stand-alone programming adapter (Cadillac) J-42236-A Serial data link tester (Corvette Star Tool) J-42598-20 90-degree adapter kit (includes connectors J-42598-21 and J-42598-22) NOTE: Every Tech 2 kit does not include every adapter listed. *Controller Area Network diagnostic interface...
  • Page 126 RETURN TO MAIN MENU Tech 2 power supplies and cables are listed below: Part Number Power Accessory 3000113 NAO power supply 3000115 Universal power supply* 3000141 NAO power cable UL 125-127 volts AC / 10 amps 3000142 Universal power cable IEC 250 volts AC / 10 amps*...
  • Page 127 RETURN TO MAIN MENU The part number for the PCMCIA kit is shown below: Part Number PCMCIA Kit 3000118 32 MB PCMCIA card User documentation...
  • Page 128 RETURN TO MAIN MENU 1. Power jack connector 2. VCI connector 3. RS-232 port 4. RS-485 port 5. PCMCIA port...
  • Page 129 RETURN TO MAIN MENU 1. RS-232 port 2. RS-232 loopback adapter (P/N 3000112)
  • Page 130 RETURN TO MAIN MENU 1. VCI connector 2. Tech 2 DLC cable (P/N 3000095)
  • Page 131 RETURN TO MAIN MENU 1. Tech 2 DLC cable (P/N 3000095) 2. DLC loopback adapter (P/N 3000109)
  • Page 132 RETURN TO MAIN MENU 1. Tech 2 DLC cable power jack connector 2. Power jack (NAO or Universal power supply)
  • Page 133 RETURN TO MAIN MENU 1. Tech 2 power jack connector 2. Power jack (NAO or Universal power supply)
  • Page 134 RETURN TO MAIN MENU 1. Power jack 2. NAO power supply (P/N 3000113) 3. Tech 2 DLC cable (P/N 3000095) 4. DLC loopback adapter (P/N 3000109) 5. RS-232 loopback adapter (P/N 3000112)
  • Page 135 RETURN TO MAIN MENU 1. Empty lower PCMCIA slot 2. Up arrow eject button...
  • Page 136 RETURN TO MAIN MENU 1. Bottom side of Tech 2 2. Tech 2 PCMCIA card 3. Tech 2 door...
  • Page 137 RETURN TO MAIN MENU 1. Tech 2 PCMCIA card...
  • Page 138 RETURN TO MAIN MENU 1. VCI module lever...
  • Page 139 RETURN TO MAIN MENU 1. VCI module lever (moved all the way to the right) 2. VCI module...
  • Page 140 RETURN TO MAIN MENU 1. Velcro strap...
  • Page 141 RETURN TO MAIN MENU 1. Soft keys 2. Action keys (YES, NO, ENTER, EXIT) 3. Control keys (SHIFT, PWR) 4. Help key 5. Function keys (F0 - F9) 6. Selection (arrow) keys...
  • Page 142 RETURN TO MAIN MENU 1. Power status indicator light 2. Power key 3. Shift key 4. Shift status indicator light...
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  • Page 146 RETURN TO MAIN MENU 1. Highlighted (selected) area 2. Bottom [ENTER] key 3. Down arrow (used to move highlighted area downward line by line) 4. Top [ENTER] key...
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  • Page 150 RETURN TO MAIN MENU 1. DLC cable connection 2. SAE 16/19 pin adapter (P/N 3000098)
  • Page 151 RETURN TO MAIN MENU 1. Cigarette lighter power cable (P/N 3000096) 2. Do not use power jack connector while DLC is connected to a vehicle. 3. Pin adapter 3/19, 10/19, 12/19, or 16/19 (see Section V)
  • Page 152 RETURN TO MAIN MENU 1. Tech 2 power jack connector 2. Power jacks 3. NAO power supply (P/N 3000113) 4. Universal power supply (P/N 3000115)
  • Page 153 RETURN TO MAIN MENU 1. Serial port adapter (P/N TA00040) 2. RS-232 communications cable (P/N 3000110) 3. Power jack (plugged into Tech 2 power jack connector) 4. Appropriate power supply...
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  • Page 155 RETURN TO MAIN MENU 1. Tech 2 power jack connector (for non-vehicle communications) 2. Tech 2 DLC cable (P/N 3000095) 3. NAO power supply (P/N 3000113) 4. Universal power supply (P/N 3000115) 5. Cigarette lighter power cable (P/N 3000096) 6. Battery clamps 7.
  • Page 156 RETURN TO MAIN MENU 1. NAO power supply (110 volts) for North American use 2. Universal power supply (220 volts) for use outside North America...
  • Page 157 RETURN TO MAIN MENU A variety of power cord plugs are available for the Tech 2, as shown: AC Plug Voltage & GM Part AC Plug Voltage & GM Part Type Current Number Type Current Number 125-127 Volts AC 3000141...
  • Page 158 RETURN TO MAIN MENU 1. VCI cable connector (26-pin connector) 2. Various vehicle adapters 3. DLC cable (19-pin connector end)
  • Page 159 RETURN TO MAIN MENU A variety of adapters is available for the Tech 2, as shown: Description Function Part No. Description Function Part No. SAE 16/19 This adapter allows Saab 10/19 This adapter allows Pin Adapter DLC connection to Adapter...
  • Page 160 RETURN TO MAIN MENU 1. Detail of 8-pin RJ45 connector 2. Tech 2 RS-232 port 3. RS-232 cable...
  • Page 161 RETURN TO MAIN MENU 1. RS-232 cable connected to Tech 2 2. 8-Pin RJ45 connector 3. RS-232 DB9 adapter...
  • Page 162 RETURN TO MAIN MENU 1. Burndy cable connection end of the DLC loopback adapter 2. VCI connection end of the DLC loopback adapter...
  • Page 163 RETURN TO MAIN MENU...
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  • Page 166 RETURN TO MAIN MENU 1. Tech 2 VCI cable connector 2. DLC loopback adapter (P/N 3000109)
  • Page 167 RETURN TO MAIN MENU...
  • Page 168 RETURN TO MAIN MENU MONTH DATE YEAR TIME : : Test Complete Test Status Main PCB Self Test PASS VCI Self Test PASS Total Pass......1 Total Failures ...... 0 PCMCIA Cards Present ..1 Main Details Details...
  • Page 169 RETURN TO MAIN MENU MONTH DATE YEAR TIME : : Test Complete Test Status RAM / ROM ......Pass RS-485 ........Missing LoopBack RS-232 ........Pass Keypad ........Pass PCMCIA Slot 1 ..... Pass PCMCIA Slot 2 ..... Card Not Present Display ........
  • Page 170 RETURN TO MAIN MENU MONTH DATE YEAR TIME : : Test Complete MUX ....... Pass ADC......Pass SIPO 8 ....Pass SIPO 20 ....Pass DLC 1 ..... Pass DLC 2 ..... Pass TPU ......Pass HBCC ..... Pass CCD......Pass Dual Uart ....
  • Page 171 Test or Sound On, contact Customer Support. Real-time clock Time is displayed correctly. Reset clock. Cycle Tech 2 power and retest. If time is Invalid values are displayed for date, year, not retained, contact Customer Support. hour, minute, or second.

  • Page 172: Mux

    RETURN TO MAIN MENU VCI MODULE DIAGNOSTIC CHART Test Results Solution MUX A: S5 & S14 If MUX A or B fails, cycle Tech 2 power and retest. (Multiplexer) pass/fail If problem persists, contact Customer Support. MUX B: S1 & S3 pass/fail...

  • Page 173: Hbcc

    (Hosted Bus Control Chip) If problem persists, contact Customer Support. VCI DUART Channel A - pass/fail If channel A or channel B fail, cycle Tech 2 and retest. (Dual Universal Asynchro- Channel B - pass/fail If problem persists, contact Customer Support.
  • Page 174 VCI MODULE DIAGNOSTIC CHART Test Results Solution VCI J1708 Internal transceiver - pass/fail For any failure, cycle Tech 2 and retest. Differential - pass/fail If problem persists, contact Customer Support. Differential - pass/fail (results from selectable VCI test) VCI TPU TPU0 - pass/fail For any failure, cycle Tech 2 and retest.
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  • Page 183 Did you find a problem? manual.) 1. Disconnect DLC cable from vehicle. Problem with vehicle. Go to Step 5. 2. Power on Tech 2 using alternate power source at DLC cable (Consult vehicle service power jack connection. manual.) Did your Tech 2 power on? Remove DLC cable from Tech 2 and attach alternate power Replace DLC cable.
  • Page 184 2. Using a digital multi-meter (DMM), verify voltage output at cigarette lighter power cable power jack. Do you have battery voltage output? 1. Remove DLC cable from Tech 2. Replace DLC cable. Problem with Tech 2. 2. Plug in cigarette lighter power jack to the VCI power jack Contact Customer connector located at bottom of Tech 2.
  • Page 185 2. Using a digital multi-meter (DMM), verify voltage output at battery power cable power jack. Do you have battery voltage output? 1. Remove DLC cable from Tech 2. Replace DLC cable. Problem with Tech 2. 2. Plug in battery power cable power jack to the VCI power jack Contact Customer connector located at bottom of Tech 2.
  • Page 186 1. Remove DLC cable from Tech 2. Replace DLC cable. Problem with Tech 2. 2. Plug in NAO (or Universal) power supply power jack to the VCI Contact Customer power jack connector located at bottom of Tech 2. Support. Does the Tech 2 power on?
  • Page 187 RETURN TO MAIN MENU 1. Cigarette lighter power cable 2. Three-amp fuse 3. Fuse retainer cap...
  • Page 188 RETURN TO MAIN MENU 1. Battery power cable 3-amp fuse box 2. Battery clamps 3. 3-amp fuse...
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  • Page 223 Techline software. Techline Techline Techline Tech 2 Client PC Client PC Client PC Scan Tool Dealers must update software from the server for each individual Techline client PC.
  • Page 224 RETURN TO MAIN MENU...
  • Page 225 RETURN TO MAIN MENU 1. Exit TIS 2. Selection Page 3. Vehicle Context 4. Close Active Application 5. Print a Screendump 6. TIS Newsletter 7. Help...
  • Page 226 RETURN TO MAIN MENU RS-232 PORT POWER SUPPLY CONNECTED TO TECH 2 DLC ADAPTER...
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  • Page 237 RETURN TO MAIN MENU 1. Upload from Handheld 2. Open an Existing File 3. Save Snapshot 4. Single-Column Mode 5. Two-Column Mode 6. Toggle Units 7. View DTC Information 8. Display Graph (three) 9. Lock/Unlock Parameters 10. Display Graph (six) 11.
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  • Page 284 RETURN TO MAIN MENU RS-232 port DLC connector...
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  • Page 293 RETURN TO MAIN MENU 1. SPS Off-Board Programming Adapter J 41207-C 2. Reprogrammable Control Module (Flash EEPROM)
  • Page 294 RETURN TO MAIN MENU OBPA SELECTION OBPA Cable Adapter Color Years Body Engine Cable #1 Black 1990–94 1.6L LO1 VIN 6 1991–94 1.8L LV6 VIN 8 Clear 1996 A, J, L, S/T Truck 2.2L LN2 VIN 4 1995 2.3L LD2 VIN D 1996 J, N 2.4L LD9 VIN T...
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  • Page 301 RETURN TO MAIN MENU Tech 2 existing existing DLC cable existing CANdi J-1962 module adapter...

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