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Home >> Toyota >> 2005 >> Camry Base, Automatic >> Repair and Diagnosis >> Brakes >> Traction Control >> Brakes - Abs With EBD & BA & TRAC & VSC (Diagnostics) >> DTC C0278/11, C0279/12: Open/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.

      Standard: 

      TESTER CONNECTION SPECIFIED CONDITION (1 OF 3)

      ABS No.3 fuse Below 1Ω (Continuity)
      Fig 1: Removing ABS No.3 Fuse From Engine Room J/B
      G02633672Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: CHECK FOR SHORT IN ALL HARNESS AND CONNECTOR 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 the table below.

      Standard: 

      TESTER CONNECTION SPECIFIED CONDITION (2 OF 3)

      Tester Connection Specified Condition
      S1-31 (+BS)-S1-1 (GND2) 10 to 14 V
      S1-31 (+BS)-S1-32 (GND1) 10 to 14 V
      Fig 2: Disconnecting Skid Control ECU Connector
      G02633673Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. 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 the table below.

      Standard: 

      TESTER CONNECTION SPECIFIED CONDITION (3 OF 3)

      Tester Connection Specified Condition
      S1-1 (GND2) - Body ground Below 1 Q
      S1-32 (GND1) - Body ground Below 1 Q
      Fig 3: Disconnecting Skid Control ECU Connector
      G02633674Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    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  )
    1. NO: END 

      HINT:

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

    YES: REPLACE BRAKE ACTUATOR ASSY (SEE  REPLACEMENT  )