Lite-Check INSPECTOR 920 Operation Manual
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Lite-Check INSPECTOR 920 Operation Manual

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INSPECTOR MODEL 920
OPERATIONS MANUAL
LITE-CHECK VEHICLE TESTER
FOR
AIR BRAKES, ELECTRICAL AND ABS
REV 2.0.3 –
September 4, 2013

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Summary of Contents for Lite-Check INSPECTOR 920

  • Page 1 INSPECTOR MODEL 920 OPERATIONS MANUAL LITE-CHECK VEHICLE TESTER AIR BRAKES, ELECTRICAL AND ABS REV 2.0.3 – September 4, 2013...
  • Page 2 LITE-CHECK INSPECTOR 920 Revision History: Name Date Changes Version # Gene Ambacher July 31, 2013 Initial Draft 2.0.3 Gene Ambacher September 4, 2013 Final Draft 2.0.3b Page 2 of 36...

  • Page 3: Cautions

    Lengthening the power cord will cause a power drop.  Be aware of voltage spikes. The tester will only operate on regulated power. Use a 12-volt battery or LITE-CHECK 311R Regulated Power Supply.  Using a battery charger or power converter as a power source will damage the tester.

  • Page 4: Table Of Contents

    INSPECTOR 920 Component Identification ..............9   Keyboard Layout......................10   Equipment and Setup ....................11   What is included with the LITE-CHECK INSPECTOR 920? ........12   Required Materials ..................... 12   LITE-CHECK INSPECTOR 920 Accessories ............12  ...
  • Page 5 LITE-CHECK INSPECTOR 920 Overview ........................20   Electrical Testing ....................... 20   Circuit Condition Messages ..................21   ABS Test Procedures ....................22   Initial Setup and Configuration ................... 22   Trailer ABS Power Supply Requirements ..............22   ABS Operation ......................23  ...
  • Page 6 LITE-CHECK INSPECTOR 920 Warranty, Contact and Service Information .............. 34   Shipping LITE-CHECK Products ................34   Index ..........................35   Page 6 of 36...

  • Page 7: Introduction

    Diagnostic Tester Introduction Summary The LITE-CHECK INSPECTOR 920 Diagnostic Test system will perform vital diagnostics of electrical and air systems on both tractors and trailers. The INSPECTOR software puts trailer ABS inspection, fault identification and troubleshooting support at the fingertips of inspectors and mechanics. The LITE-CHECK INSPECTOR 920 provides your facility with an efficient tool for safety assurance and maintenance of your heavy-duty fleet.

  • Page 8: Key Features Of The Inspector 920

    LITE-CHECK INSPECTOR 920 Key Features of the Inspector 920  Remote control operation of electrical and air systems  Dynamic monitoring of electrical faults  Microprocessor-driven simultaneous monitoring of all 7-way circuits allows direct identification of circuit conditions including: shorts, opens, open grounds, and chassis shorts ...

  • Page 9: Overview

    LITE-CHECK INSPECTOR 920 Overview INSPECTOR 920 Component Identification The LITE-CHECK INSPECTOR 920 has the following components. Item Description RC Antenna Antenna for use with remote control Digital Display Displays messages on tester status and results (see below) Service Air Pressure Gauge...

  • Page 10: Keyboard Layout

    LITE-CHECK INSPECTOR 920 Item Description 7-Way Cable Socket Cable socket for 7-way cable 7-Way Cable Socket (for testing) Cable socket for 7-way cable. (Used for cable testing) Keyboard Layout The chart below provides a brief description of each button on the keyboard panel and on the remote control.

  • Page 11: Equipment And Setup

    Press the “SELECT” button to leave this mode. Equipment and Setup The LITE-CHECK Inspector 920 diagnostic tester is designed for easy operation and setup. Some additional items are required to fully utilize all of the 920’s functions. Page: 11 of 36...

  • Page 12: What Is Included With The Lite-Check Inspector 920

     Mounting location or plate to secure the tester Warning: The LITE-CHECK INSPECTOR 920 is a “diagnostic” tester that monitors the current flow through the ground circuit to aid in identifying various fault conditions. Care should be taken to insure that the tester’s case is not grounded to the trailer or tractor...

  • Page 13: Set-Up Procedures

     Necessary hardware for an easy set-up for the shop. Set-Up Procedures The following steps should be taken to ensure proper setup of the INSPECTOR 920: 1. Review the Operators Manual (this manual) and the Quick Reference Guide 2. Mount the Tester securely 3.

  • Page 14: Reminders

    Note: If the 920 will not operate, check if the 12 volt power line polarity is reversed. Operations Reading the Digital Display The digital display on the INSPECTOR 920 includes a variety of error messages. The following are examples only. The full list of messages is shown with the appropriate test procedure.
  • Page 15 LITE-CHECK INSPECTOR 920 Display Details  VDC is the voltage at the tester  AMP is the circuit amperage the tester is reading  AUX, BLUE, PIN 7 indicates 7-Way PIN number and circuits are currently being tested (see Pin Numbers and Circuits below) ...

  • Page 16: 7-Way Pin Numbers And Circuits

    LITE-CHECK INSPECTOR 920 7-Way Pin Numbers and Circuits 7-Way Pin Number Wire Color Circuit 4 red BRAKE 6 brown TAIL 2 black MARKER 5 green RIGHT TURN 7 blue AUXILLARY 1 white GROUND 3 yellow LEFT TURN Remote Control The remote control allows the vehicle inspector to operate air and electrical functions around the vehicle and observe the responses.

  • Page 17: Power Supply

     Remove the batteries using the pull strap inside the case. Do not pry them out.  If remote controls need to be keyed to different testers, contact LITE-CHECK for assistance  The tester antenna must be fully exposed for good test reception Power Supply The tester is designed for negative ground vehicles (black-negative, red-positive).

  • Page 18: 7-Way Cable Test

    LITE-CHECK INSPECTOR 920 Display Details The tester message “LOW BATTERY” indicates that the 12-volt battery powering the tester needs to be recharged. The tester will display the voltage (VDC) that is being received 7-Way Cable Test This automatically tests the 7-Way 7-pin vehicle cable.

  • Page 19: Air Brake Testing

    LITE-CHECK INSPECTOR 920 Air Brake Testing Once the INSPECTOR 920 is connected to air and power, and to the testing the air and breaking system can begin. The Emergency Air and Service Air Gauges are similar to the ones shown below: EMER.

  • Page 20: Inspecting For Trailer Electrical Faults

    Inspecting for Trailer Electrical Faults Overview Always begin the inspection operation with a properly setup INSPECTOR 920. Adequate air and 12-volt power should be verified before starting the test. NOTE: Air and air connections are not required when performing electrical inspections only.

  • Page 21: Circuit Condition Messages

    LITE-CHECK INSPECTOR 920 Circuit Condition Messages Note: LITE-CHECK automatic testers are “live” in that any changes in circuit conditions are immediately detected and displayed by the tester. Display Details “GOOD” – Circuit Passes The circuit indicator light is on. The digital display indicates the circuit under test, current draw, voltage and a GOOD circuit.

  • Page 22: Abs Test Procedures

    LITE-CHECK INSPECTOR 920 Display Details “OPEN GROUND” – Ground wire is open All panel circuit indicator lights are on and the “OPEN GROUND” fault alarm sounds. The digital display indicates the circuit under test, current draw, voltage and an open ground circuit fault.

  • Page 23: Abs Operation

    Now repeat the test procedure with the next ECU. NOTE: All ABS notes are for the Meritor Wabco Easy Stop other ECUs may vary The INSPECTOR 920 automatically checks the brake and auxiliary circuits. Press the yellow ABS button on either the keyboard or remote.

  • Page 24: Main Menu

    NOTE: Each star indicates a stage in the ECU information retrieval. If the tester is unable to complete identification note the number of stars and contact LITE-CHECK customer support. Main Menu ‐>ECU VOLTAGE Pressing the...

  • Page 25: Viewing Stored Faults

    LITE-CHECK INSPECTOR 920 When the fault is displayed, press the SELECT key to view the manufactures repair notes. Viewing Stored Faults VIEW STORED FAULTS NUMBER FOUND (6) View a stored fault by moving the cursor to the “VIEW Press up down keys to STORED FAULT”...

  • Page 26: Manufacturer's Configuration

    LITE-CHECK INSPECTOR 920 Note: Some ECUs do not support this voltage test. Manufacturer’s Configuration Selecting this option provides the ECU configuration information and VIN number. Serial Number SERIAL NUMBER SN:A16848 Selecting this option displays the ECU serial number. Special Functions Special Functions are additional information the ECU ‐>Wheel Speed...

  • Page 27: Abs Fault Identification And Troubleshooting

    All information and directions were obtained directly from each of the above ABS OEMs. The LITE-CHECK process conforms to each OEM’s procedure. NOTE: If the INSPECTOR 920 tester does not support a particular ECU, such as an Eaton unit, the tester display will read “NOT SUPPORTED AT THIS TIME” or “UNABLE TO DETERMINE ECU TYPE.”...

  • Page 28: Electrical Output Test

    1. Press the “TRACTOR OUTPUT TEST” button 2. Plug the 7-way cable from the tractor into the front port on the INSPECTOR 920 3. Operate the tractor’s electrical functions. The corresponding LED on the INSPECTOR 920 will light and the output voltage will appear on the digital...

  • Page 29: Appendix

    LITE-CHECK INSPECTOR 920 Appendix ABS Button Codes The following ABS Button Codes provide additional help with finding and correcting faults. The four yellow buttons on the panel and the remote select menu items and display fault information and the on-line help.
  • Page 30 LITE-CHECK INSPECTOR 920  View Stored Faults VIEW STORED FAULTS o Press SELECT to view the stored faults NUMBER FOUND (6) Press up down keys to o Display – Number found (#) see faults. o Press the DOWN button to see detailed...
  • Page 31 LITE-CHECK INSPECTOR 920  ECU Voltage o Press SELECT to display the ECU and supply voltages VOLTAGE SUPPLY: 13.85 VOLTS ECU: 13.55 VOLTS o The digital display will show both supply (AUX voltage at the nose plug) and ECU voltage.

  • Page 32: Definition Of Terms

    LITE-CHECK INSPECTOR 920 Definition of Terms Glossary and Definition of Terms ALARM – Distinct sound for each fault type. Alarm will cease automatically or change when a fault is corrected TRACTOR – Power unit, prime mover with self-contained power and air TRAILER –...

  • Page 33: Accessories

    2. Stored – a fault which occurred previously, but does not presently exist 3. Intermittent – a fault which comes and goes, usually with certain driving conditions. Accessories  LITE-CHECK 311R 12VDC Regulated Power Supply  330A Pedal Actuator  301m Service Truck Kit o Kit Includes ...
  • Page 34 LITE-CHECK INSPECTOR 920 Warranty, Contact and Service Information LITE-CHECK products have a one-year limited warranty on parts and labor against manufacturing defects. All warranty service to be performed at LITE-CHECK, Spokane, Washington. The Customer is responsible for shipping costs. The warranty does not cover abuse, neglect, or damage caused by air, electrical, or other outside sources as specified in the owner’s manual.
  • Page 35 ........9, 10 air output test ....... 27, 28 left .......... 10, 16, 23 air regulator ........12 lite-check ... 1, 3, 7, 9, 11, 12, 13, 17, 20, alarm mute ......... 11 21, 27, 33, 34 alarm speaker ........9 low battery ........

  • Page 36: Page: 5 Of

    LITE-CHECK INSPECTOR 920 select ..11, 23, 24, 25, 26, 29, 30, 31 tractor output ......11, 18, 28 sending lamp ........17 tractor testing ........27 serial number ....... 26, 31 trailer mode ........14 service ........10, 19, 28 up ......

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