King Tool CanScan D900 Owner's Manual
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King Tool CanScan D900 Owner's Manual

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CanScan
OWNER'S
MANUAL
The Easiest
And Best Way
To
Troubleshoot
1996 and
Newer OBD2
Vehicles!

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Summary of Contents for King Tool CanScan D900

  • Page 1 CanScan OWNER’S MANUAL The Easiest And Best Way Troubleshoot 1996 and Newer OBD2 Vehicles!

  • Page 2: Table Of Contents

    Table of Contents Introduction ...........................2 You Can Do It! ..........................3 Safety Precautions........................4 SAFETY FIRST! ..........................4 About the CanScan........................6 VEHICLES COVERED .........................6 BATTERY REPLACEMENT......................7 ADJUSTMENTS AND SETTINGS ....................7 CanScan Controls ........................9 CONTROLS AND INDICATORS ....................9 DISPLAY FUNCTIONS....................... 11 Onboard Diagnostics ........................12 COMPUTER ENGINE CONTROLS ...................12 OBD 2 Terminology ........................16 DIAGNOSTIC TROUBLE CODES (DTCs) ................18...

  • Page 3: Introduction

    Introduction WHAT IS OBD? Introduction WHAT IS OBD? The D900 CanScan is designed to work on all OBD 2 compliant vehicles. All 1996 and newer vehicles (cars, light trucks and SUVs) sold in the United States are OBD 2 compliant. One of the most exciting improvements in the automobile industry was the addition of on-board diagnostics (OBD) on vehicles, or...

  • Page 4: You Can Do It

    You Can Do It! EASY TO USE - EASY TO VIEW You Can Do It! Easy To Use ..Connect the CanScan to the vehicle’s test connector. Turn the ignition key "On.” Press the LINK button. Easy To View ..The CanScan retrieves stored codes, Freeze Frame data and I/M Readiness status.

  • Page 5: Safety Precautions

    Safety Precautions SAFETY FIRST! Safety Precautions SAFETY FIRST! To avoid personal injury, instrument damage and/or damage to your vehicle; do not use the CAN OBD2 Code Reader before reading this manual. This manual describes common test procedures used by experienced service technicians. Many test procedures require precautions to avoid accidents that can result in personal injury, and/or damage to your vehicle or test equipment.
  • Page 6 Safety Precautions SAFETY FIRST! To prevent damage to the on-board computer when taking vehicle electrical measurements, always use a digital multimeter with at least 10 megOhms of impedance. Fuel and battery vapors are highly flammable. To pre-vent an explosion, keep all sparks, heated items and open flames away from the battery and fuel / fuel vapors.

  • Page 7: About The Canscan

    About the Code Reader VEHICLES COVERED / BATTERY REPLACEMENT About the CanScan VEHICLES COVERED The D900 CanScan is designed to work on all OBD 2 compliant vehicles. All 1996 and newer vehicles (cars and light trucks) sold in the United States are OBD 2 compliant.

  • Page 8: Battery Replacement

    About the Code Reader VEHICLES COVERED / BATTERY REPLACEMENT Data Link Connector (DLC) Location The 16-pin DLC is usually located under the instrument panel (dash), within 12 inches (300 mm) of center of the panel, on the driver’s side of most vehicles. It should be easily accessible and visible from a kneeling position outside the vehicle with the door open.
  • Page 9 About the Code Reader VEHICLES COVERED / BATTERY REPLACEMENT Adjusting Display Brightness 1. Use the UP and DOWN buttons, as necessary, to highlight Adjust Brightness in the MENU, then press the ENTER/FF button. The Adjust Brightness screen displays. The Brightness field shows the current brightness setting, from 1 to 10.

  • Page 10: Canscan Controls

    Code Reader Controls CONTROLS AND INDICATORS CanScan Controls CONTROLS AND INDICATORS Figure 1. Controls and Indicators See Figure 1 for the locations of items 1 through 11, below. ERASE button - Erases Diagnostic Trouble Codes (DTCs), and “Freeze Frame” data from your vehicle’s computer, and resets Monitor status. DTC SCROLL button - Displays the DTC View screen and/or scrolls the LCD display to view DTCs when more than one DTC is present.
  • Page 11 Code Reader Controls CONTROLS AND INDICATORS DOWN button - When in MENU mode, scrolls DOWN through the menu and submenu selection options. When retrieving and viewing DTCs, scrolls down through the current display screen to display any additional data. UP button - When in MENU mode, scrolls UP through the menu and submenu selection options.

  • Page 12: Display Functions

    Code Reader Controls DISPLAY FUNCTIONS DISPLAY FUNCTIONS Figure 2. Display Functions See Figure 2 for the locations of items 1 through 6, below. 1. Test Data Display Area - Displays DTC definitions, and other pertinent test information messages. 2. DTC Display Area - Displays the Diagnostic Trouble Code (DTC) number. Each fault is assigned a code number that is specific to that fault.

  • Page 13: Onboard Diagnostics

    Onboard Diagnostics DIAGNOSTIC TROUBLE CODES (DTCs) Onboard Diagnostics COMPUTER ENGINE CONTROLS The Introduction of Electronic Engine Controls Electronic Computer Control Systems make it possible for vehicle manufacturers to comply with the tougher emissions and fuel efficiency standards mandated by State and Federal As a result of increased air pollution (smog) in large cities, such as Los Angeles, the California Air Resources Board (CARB) and the Environmental Protection Agency (EPA) set new regulations and air...
  • Page 14 Onboard Diagnostics DIAGNOSTIC TROUBLE CODES (DTCs) The Basic Engine Computer Control System The Computer Control System consists of an on-board computer and several related control devices (sensors, switches, and actuators). The on-board computer is the heart of the Computer Control System. The computer contains several programs with preset reference values for air/fuel ratio, spark or ignition timing, injector pulse width, engine speed, etc.
  • Page 15 Onboard Diagnostics DIAGNOSTIC TROUBLE CODES (DTCs) The computer compares the values received from these sensors with its preset reference values, and makes corrective actions as needed so that the sensor values always match the preset reference values for the current driving condition.
  • Page 16 Onboard Diagnostics DIAGNOSTIC TROUBLE CODES (DTCs) On-Board Diagnostics - Second Generation (OBD 2) In addition to performing all the functions The OBD 2 System is of the OBD 1 System, the OBD 2 System an enhancement of the has been enhanced with new Diagnostic OBD 1 System.

  • Page 17: Obd 2 Terminology

    Onboard Diagnostics DIAGNOSTIC TROUBLE CODES (DTCs) To expand emissions-related system monitoring. This includes a set of computer run diagnostics called Monitors. Monitors perform diagnostics and testing to verify that all emissions-related components and/or systems are operating correctly and within the manufacturer’s specifications. To use a standardized Diagnostic Link Connector (DLC) in all vehicles.
  • Page 18 Onboard Diagnostics DIAGNOSTIC TROUBLE CODES (DTCs) “Enabling Criteria.” The requirements and procedures vary for each Monitor. Some Monitors only require the ignition key to be turned “On” for them to run and complete their diagnostic testing. Others may require a set of complex procedures, such as, starting the vehicle when cold, bringing it to operating temperature, and driving the vehicle under specific conditions before the Monitor can run and complete its diagnostic testing.

  • Page 19: Diagnostic Trouble Codes (Dtcs)

    Onboard Diagnostics DIAGNOSTIC TROUBLE CODES (DTCs) cycles as a counter to automatically erase a specific code and related data from its memory. When no faults related to the original problem are detected within a specified number of warm-up cycles, the code is erased automatically.
  • Page 20 Onboard Diagnostics DIAGNOSTIC TROUBLE CODES (DTCs) BD 2 DTC EXAMPLE P0201 - Injector Circuit Malfunction, Cylinder 1 D900 CanScan...

  • Page 21: Preparation For Testing

    Preparation for Testing BEFORE YOU BEGIN Preparation for Testing BEFORE YOU BEGIN The D900 CanScan aids in monitoring electronic and emissions-related faults in your vehicle and retrieving fault codes related to malfunctions in these systems. Mechanical problems such as low oil level or damaged hoses, wiring or electrical connectors can cause poor engine performance and may also cause a “false”...

  • Page 22: Using The Canscan

    Using the Code Reader CODE RETRIEVAL PROCEDURE Using the CanScan CODE RETRIEVAL PROCEDURE Retrieving and using Diagnostic Trouble Codes (DTCs) for troubleshooting vehicle operation is only one part of an overall diagnostic strategy. Never replace a part based only on the DTC definition. Each DTC has a set of testing procedures, instructions and flow charts that must be followed to confirm the location of the problem.
  • Page 23 Using the Code Reader CODE RETRIEVAL PROCEDURE 4. When the CanScan’s cable connector is properly connected to the vehicle’s DLC, the unit automatically turns ON, and the LCD display shows instructions for linking to the vehicle’s on-board computer. If the unit does not power on automatically when connected to the vehicle’s DLC connector, it usually indicates there is no power present at the vehicle’s DLC connector.
  • Page 24 Using the Code Reader CODE RETRIEVAL PROCEDURE then turn back ON to reset the computer. Ensure your vehicle is OBD2 compliant. See Vehicles Covered on page for vehicle compliance verification information. The CanScan will display a code only if codes are present in the vehicle’s computer memory.
  • Page 25 Using the Code Reader CODE RETRIEVAL PROCEDURE Green LED – Indicates that all engine systems are “OK” and operating normally. All monitors supported by the vehicle have run and per-formed their diagnostic testing, and no trouble codes are present. A zero will show on the CanScan’s LCD display.
  • Page 26 Using the Code Reader CODE RETRIEVAL PROCEDURE for your vehicle. 10. Freeze Frame Data (if available) can be viewed at any time (except MENU mode) by pressing the ENTER/FF button. In OBD2 systems, when an emissions- related engine malfunction occurs that causes a DTC to set, a record or snapshot of engine conditions at the time that the malfunction occurred is also saved in the...
  • Page 27 Using the Code Reader CODE RETRIEVAL PROCEDURE complete the Preliminary Vehicle Diagnosis Worksheet on page take it together with the retrieved codes, freeze frame data and LED information to aid in the troubleshooting procedure. To prolong battery life, the CanScan automatically shuts “Off” approximately three minutes after it is disconnected from the vehicle.

  • Page 28: Erasing Diagnostic Trouble Codes (Dtcs)

    Using the Code Reader ERASING DIAGNOSTIC TROUBLE CODES (DTCs) ERASING DIAGNOSTIC TROUBLE CODES (DTCs) When the CanScan’s ERASE function is used to erase DTCs from the vehicle's on-board computer, manufacturer- specific enhanced data are also erased. If you plan to take the vehicle to a Service Center for repair, DO NOT erase the codes from the vehicle's computer.
  • Page 29 Using the Code Reader ERASING DIAGNOSTIC TROUBLE CODES (DTCs) - If you do not want to continue with the erase process, press the POWER/LINK button to exit the erase mode. 4. If you chose to erase DTCs, a progress screen displays while the erase function is in progress.

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