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Home >> Toyota >> 2006 >> Camry Base, Automatic >> Repair and Diagnosis >> Brakes >> Traction Control >> Brakes - Abs With EBD & BA & TRAC & VSC (Diagnostics) >> DTC C0278/11 Open Circuit In Abs Solenoid Relay Circuit: DTC C0279/12 Short Circuit In Abs Solenoid Relay Circuit >> Inspection Procedure

Inspection Procedure

NOTE: When replacing the brake actuator assy, perform zero point calibration (See CALIBRATION ).
  1. CHECK FUSE (ABS NO. 3) 
    1. Remove the ABS No. 3 fuse from the engine room J/B.
    2. Check continuity of the ABS No. 3 fuse.
    3. Fig 1: Checking Fuse (ABS No. 3)
      G04390045Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    Standard: 

    FUSE (ABS NO. 3)

    ABS No. 3 fuse Below 1 (Continuity)

    NG: CHECK FOR SHORT IN ALL HARNESS AND CONNECTORS CONNECTED TO FUSE AND REPLACE FUSE 

    OK: Go to next step 

  2. INSPECT SKID CONTROL ECU CONNECTOR (+BS TERMINAL VOLTAGE) 
    1. Disconnect the skid control ECU connector.
    2. Measure the voltage according to the value(s) in SKID CONTROL ECU CONNECTOR (+BS TERMINAL VOLTAGE)  .
    3. Fig 2: View Of Skid Control ECU Connector Terminals
      G04390046Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    Standard: 

    SKID CONTROL ECU CONNECTOR (+BS TERMINAL VOLTAGE)

    Tester Connection Specified Condition
    S1-31 (+BS) - S1-1 (GND2) 10 to 14 V
    S1-31 (+BS) - S1-32 (GND1) 10 to 14 V

    OK: Go to step 4 

    NG: Go to next step 

  3. INSPECT HARNESS AND CONNECTOR (SKID CONTROL ECU - BODY GROUND) 
    1. Disconnect the skid control ECU connector.
    2. Measure the resistance according to the value(s) in SKID CONTROL ECU - BODY GROUND  .
    3. Fig 3: View Of Skid Control ECU Connector Terminals
      G04390047Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    Standard: 

    SKID CONTROL ECU - BODY GROUND

    Tester Connection Specified Condition
    S1-1 (GND2) - Body ground Below 1
    S1-32 (GND1) - Body ground Below 1

    NG: REPAIR OR REPLACE HARNESS AND CONNECTOR (SKID CONTROL ECU - BODY GROUND) 

    OK: REPAIR OR REPLACE HARNESS AND CONNECTOR (SKID CONTROL ECU - BATTERY) 

  4. RECONFIRM DTC 
    1. Clear the DTCs (See DTC CHECK/CLEAR ).
    2. Turn the ignition switch to the ON position.
    3. Are the same DTCs recorded? (See DTC CHECK/CLEAR  )

    NO: END 

    HINT:

    These DTCs may be memorized due to a malfunction in the connector terminal.

    YES: REPLACE BRAKE ACTUATOR ASSY (See step 3 in  REPLACEMENT  )