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Inspection Procedure

WARNING: This page is about a different car, the 2005 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK CAN BUS LINE FOR DISCONNECTION (SKID CONTROL ECU SUB BUS LINE) 
    1. Turn the ignition switch to the LOCK position.
    2. Disconnect the skid control ECU connector (S28).
    3. Measure the resistance according to the value (s) in the table below.
      Fig 1: Skid Control ECU Connector Terminals Resistance Specifications
      G02579829Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 2: Identifying Skid Control ECU Connector (S28)
      G02579830Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE SKID CONTROL ECU SUB BUS LINE OR CONNECTOR (CAN-H, CAN-L) 

    OK: Go to next step. 

  2. CHECK WIRE HARNESS (IG, GND2) 
    1. Measure the resistance according to the value (s) in the table below.
      Fig 3: Identifying IG1 And GND2 Connector Terminals
      G02579831Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard: 

      S28 CONNECTOR TERMINALS RESISTANCE SPECIFICATIONS (1 OF 2)

      Tester connection Condition Specified value
      S28-32 (GND2)-Body ground Always Below 1Ω
    2. Measure the voltage according to the value (s) in the table below.

    Standard: 

    S28 CONNECTOR TERMINALS VOLTAGE SPECIFICATIONS (2 OF 2)

    Tester connection Condition Specified value
    S28-46 (IG1)-Body ground IG switch ON 10 to 14 V
    1. NG: REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR 

    OK: Go to next step. 

    REPLACE MASTER CYLINDER SOLENOID (SEE  OVERHAUL  ) 



  1. CHECK CAN BUS LINE FOR DISCONNECTION (STEERING ANGLE SENSOR SUB BUS LINE) 
    1. Turn the ignition switch to the LOCK position.
    2. Disconnect the steering angle sensor connector (S11).
    3. Measure the resistance according to the value (s) in the table below.
      Fig 1: Steering Angle Sensor Terminals Resistance Specifications
      G02579834Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 2: Identifying Steering Angle Sensor Wire Harness View
      G02579835Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE STEERING ANGLE SENSOR SUB BUS LINE OR CONNECTOR (CAN-H, CAN-L) 

    OK: Go to next step. 

  2. CHECK WIRE HARNESS (IG1, ESS) 
    1. Measure the resistance according to the value (s) in the table below.
      Fig 3: Identifying IG1 And ESS Connector Terminals
      G02579836Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard: 

      S11 CONNECTOR TERMINALS RESISTANCE SPECIFICATIONS (1 OF 2)

      Tester connection Condition Specified value
      S11-2 (ESS)-Body ground Always Below 1Ω
    2. Measure the voltage according to the value (s) in the table below.

      Standard: 

      S11 CONNECTOR TERMINALS VOLTAGE SPECIFICATIONS (2 OF 2)

      Tester connection Condition Specified value
      S11-1 (IG1)-Body ground IG switch ON 10 to 14 V
      1. NG: REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR 

      OK: Go to next step. 

      REPLACE STEERING ANGLE SENSOR (  STEERING SENSOR  ) 



  1. CHECK CAN BUS LINE FOR DISCONNECTION (YAW RATE SENSOR SUB BUS LINE) 
    1. Turn the ignition switch to the LOCK position.
    2. Disconnect the yaw rate sensor connector (Y1).
    3. Measure the resistance according to the value (s) in the table below.
      Fig 1: Yaw Rate Sensor Connector Terminals Resistance Specifications
      G02579839Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 2: Identifying Yaw Rate Sensor Connector (Y1) Terminals
      G02579840Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE YAW RATE SENSOR SUB BUS LINE OR CONNECTOR (CAN-H, CAN-L) 

    OK: Go to next step. 

  2. CHECK WIRE HARNESS (IG, GND)
    1. Measure the resistance according to the value (s) in the table below.
      Fig 3: Identifying Yaw Rate Sensor Connector Front View
      G02579841Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    Standard: 

    YAW RATE SENSOR CONNECTOR TERMINALS - BODY GROUND RESISTANCE SPECIFICATIONS (1 OF 2)

    Tester connection Condition Specified value
    Y1-1 (GND)-Body ground Always Below 1Ω
  3. Measure the voltage according to the value (s) in the table below.

Standard: 

YAW RATE SENSOR CONNECTOR TERMINALS - BODY GROUND VOLTAGE SPECIFICATIONS (2 OF 2)

Tester connection Condition Specified value
Y1 -5 (IG),- Body ground IG switch ON 10 to 14 V
  1. NG: REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR 

OK: Go to next step. 

REPLACE  YAWRATE SENSOR 

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