LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 2004 >> Land Cruiser >> Repair and Diagnosis >> External Pages >> Different car >> Section 471 (Brakes - Abs With EBD & BA & TRAC & VSC (Diagnostics)) >> Circuit Inspection >> VSC OFF Indicator Light, Center Diff Lock Switch Circuit >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2005 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.

HINT:

Start the inspection from step  1 in case of using the hand-held tester and start from step  2. in case of not using the hand-held tester.

  1. Check operation of the VSC OFF indicator light. 

    PREPARATION: 

    1. Connect the hand-held tester to the DLC3.
    2. Turn the ignition switch ON and push the hand-held tester main switch ON.
    3. Select the ACTIVE TEST mode on the hand-held tester.

      CHECK: 

      Check that "ON" and "OFF" of the VSC OFF indicator light can be shown on the combination meter with the hand-held tester.

    1. NG: Go to step   3 . 
    2. OK: Go to next step. 
  2. Is DTC output for VSC? 
    1. YES: Repair circuit indicated by the output code. 
    2. NO: Go to next step. 
  3. Does the warning lights other than VSC OFF indicator light come on? 
    1. YES: Go to step   5 . 
    2. NO: Go to next step. 
  4. Check IG1 No. 1 relay. 

    PREPARATION: 

    Remove the IG1 No. 1 relay from the engine room J/B.

    CHECK: 

    Check continuity between the IG1 No. 1 relay terminals listed in TERMINALS NO AND CONTINUITY  .

    OK: 

    TERMINALS NO AND CONTINUITY

    Terminals 3 and 4 Continuity
    Terminals 1 and 2 Open

    CHECK: 

    1. Apply battery positive voltage between terminals 3 and 4.
    2. Check continuity between terminals.

      OK: 

      TERMINALS NO AND CONTINUITY

      Terminals 1 and 2 Continuity
      Fig 1: Checking Continuity Between IG1 No. 1 Relay Terminals
      G03070130Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: Replace IG1 No. 1 relay. 
    2. OK: Check for open circuit in harness and connector between IG1 No. 1 relay and combination meter (See  HOW TO USE THE DIAGNOSTIC TABLE AND INSPECTION  ). 
  5. Check VSC OFF indicator light. 

    Check that the open circuit in the combination meter circuit (See CIRCUIT ).

    1. NG: Repair VSC OFF indicator light bulb or combination meter assembly. 
    2. OK: Go to next step. 
  6. Check for short circuit in harness and connector between VSC OFF indicator light and skid control ECU (See  HOW TO USE THE DIAGNOSTIC TABLE AND INSPECTION  ). 
    1. NG: Repair or replace harness or connector. 
    2. OK: Go to next step. 
  7. Check if center diff. lock switch remains ON, or check wire harness between center diff. lock switch and body ground for short circuit. 
    1. NG: Repair center diff. lock switch or repair or replace wire harness. 
    2. OK: Check and repair skid control ECU. 
scientia non olet · About LEMON Manuals