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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 >> DTC C1337/37: Different Diameter Tire Malfunction >> 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. Check tire size. 

    CHECK: 

    Check tire size and condition of all 4 wheels.

    OK: 

    The 4 wheels are the same size and in the same condition.

    1. NG : Replace tires so that all 4 tires are the same size. 
    2. OK : Go to next step. 
  2. Check speed sensor rotor (See  CIRCUIT INSPECTION   ). 
    1. NG : Replace speed sensor rotor. 
    2. OK : Go to next step. 
  3. Check speed sensor (See  CIRCUIT INSPECTION   ). 
    1. NG : Replace speed sensor. 
    2. OK : Go to next step. 
  4. Check harness and connector between master cylinder solenoid (skid control ECU) and each speed sensor. 
    1. NG : Repair or replace harness or connector. 
    2. OK : Go to next step. 
  5. Reconfirm DTC (See  DTC CHECK / CLEAR   ). 

    PREPARATION: 

    1. Clear the DTC.
    2. Drive the vehicle at more than 13 mph (20 km/h) for more than 60 seconds.

    CHECK: 

    Check if the same DTC is detected.

    RESULT: 

    DTC OUTPUT RESULT

    DTC is output A
    DTC is not output B
    1. B : END. 
    2. A : Replace master cylinder solenoid (See  DISASSEMBLY  ).