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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 C1225/25, C1226/26, C1227/27, C1228/28: Open or Short Circuit in Hydraulic Brake Booster Solenoid Circuit (SMCF/SREA/SREC/STR 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. Reconfirm DTC (See  DTC CHECK / CLEAR   ). 

    HINT:

    This code is detected when a problem is determined in the master cylinder solenoid (skid control ECU).

    The solenoid circuit is in the master cylinder solenoid.

    Therefore, solenoid circuit inspection and solenoid unit inspection cannot be performed. Be sure to check if the DTC code is output before replacing the master cylinder solenoid.

    PREPARATION: 

    Clear the DTCs.

    CHECK: 

    Check if the same DTCs are 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  ).