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Home >> Toyota >> 2004 >> Tundra Base, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 471 (Brakes - Abs With EBD & BA & TRAC & VSC (Diagnostics)) >> Abs With EBD & BA & TRAC & VSC System >> Circuit Inspection >> TC Terminal Circuit >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2006 Toyota Tundra and 2005 Toyota Tundra. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: When replacing the master cylinder solenoid, perform zero point CALIBRATION  .
  1. Measure voltage between terminals TC (13) and CG (4) of the DLC3. 

    CHECK: 

    1. Turn the ignition switch to the ON position.
    2. Measure the voltage between terminals TC (13) and CG (4) of the DLC3.
    Fig 1: Identifying Terminals TC (13) And CG (4) Of DLC3
    G02643070Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: 

    Voltage: 10 to 14 V 

    1. NG : Go to step   3 . 
    2. OK : Go to next step. 
  2. Check CAN communication system (See  PROBLEM SYMPTOMS TABLE  ). 

    CHECK: 

    Check if the CAN communication systems DTC is detected.

    RESULT: 

    DTC OUTPUT RESULT

    DTC is output A
    DTC is not output B
    1. NG : Repair circuit indicated by output code (See  DIAGNOSTIC TROUBLE CODE CHART  ). 
    2. OK : Replace master cylinder solenoid (See  DISASSEMBLY  ). 
  3. Check for open or short circuit in harness and connector between DLC3 and ECM. 
    1. NG : Repair or replace harness or connector. 
    2. OK : Go to next step. 
  4. Check harness and connector between CG terminal of DLC3 and body ground. 

    CHECK: 

    Measure the resistance between terminal CG of the DLC3 and body ground.

    OK: 

    Continuity

    Fig 2: Identifying Terminal CG Of DLC3
    G02643071Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG : Repair or replace harness or connector (CG circuit). 
    2. OK : Go to next step. 
  5. Check ECM TC input. 

    PREPARATION: 

    Using SST, connect terminal TC and CG of the DLC3.

    SST 09843-18040

    CHECK: 

    Check that the engine warning light is blinking.

    RESULT: 

    ENGINE WARNING LIGHT BLINKING CONDITIONS

    Engine warning light is blinking A
    Engine warning light is not blinking B
    Fig 3: Identifying Terminal TC And CG Of DLC3
    G02643072Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. B : Repair or replace ECM circuit (TC circuit and/or ECM). 
    2. A : Go to next step. 
  6. Check CAN communication system (See  PROBLEM SYMPTOMS TABLE  ). 

    CHECK: 

    Check if the CAN communication systems DTC is detected.

    RESULT: 

    DTC OUTPUT RESULT

    DTC is output A
    DTC is not output B
    1. NG : Repair circuit indicated by output code (See  DIAGNOSTIC TROUBLE CODE CHART  ). 
    2. OK : Replace master cylinder solenoid (See  DISASSEMBLY  ). 
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