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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 SHORT TO GND (DLC3 SUB BUS LINE) 
    1. Disconnect the DLC3 sub bus line connector (J50) from the CAN J/C.
      NOTE:
      • Before disconnecting the connector, make a note of where it is connected.
      • Reconnect the connector to its original position.
    2. Measure the resistance according to the value (s) in the table below.
      Fig 1: Wiring Diagram - CAN Bus Line For Short To GND
      G02579900Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 2: Disconnecting DLC3 Sub Bus Line Connector (J50) From Can J/C
      G02579902Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 3: D1 Connector Terminals Resistance Specifications
      G02579901Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE DLC3 SUB BUS LINE OR CONNECTOR (CAN-H, CAN-L) 

    OK: Go to next step. 

  2. CONNECT CONNECTOR 
    1. Reconnect the DLC3 sub bus line connector (J50) to the CAN J/C.

    NEXT: Go to next step. 

  3. CHECK CAN BUS LINE FOR SHORT TO GND (SKID CONTROL ECU SUB BUS LINE) 
    1. Disconnect the skid control ECU sub bus line connector (J47) from the CAN J/C.
      NOTE:
      • Before disconnecting the connector, make a note of where it is connected.
      • Reconnect the connector to its original position.
    2. Measure the resistance according to the value (s) in the table below.
      Fig 4: Identifying D1 Connector Terminals
      G02579903Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 5: Disconnecting Skid Control ECU Sub Bus Line Connector (J47) From CAN J/C
      G02579905Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 6: D1 Connector Terminals Resistance Specifications
      G02579904Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. OK: Go to step   10 

    NG: Go to next step. 

  4. CONNECT CONNECTOR 
    1. Reconnect the skid control ECU sub bus line connector (J47) to the CAN J/C.

    NEXT: Go to next step. 

  5. CHECK CAN BUS LINE FOR SHORT TO GND (YAW RATE SENSOR SUB BUS LINE) 
    1. Disconnect the yaw rate sensor sub bus line connector (J48) from the CAN J/C.
      NOTE:
      • Before disconnecting the connector, make a note of where it is connected.
      • Reconnect the connector to its original position.
    2. Measure the resistance according to the value (s) in the table below.
      Fig 7: Identifying D1 Connector Terminals
      G02579906Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 8: Disconnecting Yaw Rate Sensor Sub Bus Line Connector (J48) From CAN J/C
      G02579907Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 9: D1 Connector Terminals Resistance Specifications
      G02579908Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. OK: Go to step   12 

    NG: Go to next step. 

  6. CONNECT CONNECTOR 
    1. Reconnect the yaw rate sensor sub bus line connector (J48) to the CAN J/C.

    NEXT: Go to next step. 

  7. CHECK CAN BUS LINE FOR SHORT TO GND (STEERING ANGLE SENSOR SUB BUS LINE) 
    1. Disconnect the steering angle sensor sub bus line connector (J49) from the CAN J/C.
      NOTE:
      • Before disconnecting the connector, make a note of where it is connected.
      • Reconnect the connector to its original position.
    2. Measure the resistance according to the value (s) in the table below.
      Fig 10: Identifying D1 Connector Terminals
      G02579909Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 11: Disconnecting Steering Angle Sensor Sub Bus Line Connector (J49) From CAN J/C
      G02579911Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 12: D1 Connector Terminals Resistance Specifications
      G02579910Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. OK: Go to step   14 

    NG: Go to next step. 

  8. CONNECT CONNECTOR 
    1. Reconnect the steering angle sensor sub bus line connector (J49) to the CAN J/C.

    NEXT: Go to next step. 

  9. CHECK CAN BUS LINE FOR SHORT TO GND (ECM MAIN BUS LINE) 
    1. Disconnect the ECM main bus line connector (J51) from the CAN J/C.
      NOTE:
      • Before disconnecting the connector, make a note of where it is connected.
      • Reconnect the connector to its original position.
    2. Measure the resistance according to the value (s) in the table below.
      Fig 13: Identifying D1 Connector Terminals
      G02579912Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 14: Disconnecting ECM Main Bus Line Connector (J51) From CAN J/C
      G02579914Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 15: D1 Connector Terminals Resistance Specifications
      G02579913Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. OK: Go to step   16 

    NG: Go to next step. 

    REPLACE CAN J/C 

  10. CONNECT CONNECTOR 
    1. Reconnect the skid control ECU sub bus line connector (J47) to the CAN J/C.

    NEXT: Go to next step. 

  11. CHECK CAN BUS LINE FOR SHORT TO GND (SKID CONTROL ECU SUB BUS LINE) 
    1. Disconnect the skid control ECU connector (S28).
    2. Measure the resistance according to the value (s) in the table below.
      Fig 16: Identifying D1 Connector Terminals
      G02579916Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 17: D1 Connector Terminals Resistance Specifications
      G02579915Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. OK: REPLACE MASTER CYLINDER SOLENOID (SEE  OVERHAUL  ) 

    NG: Go to next step. 

    REPAIR OR REPLACE SKID CONTROL ECU SUB BUS LINE OR CONNECTOR (CAN-H, CAN-L) 

  12. CONNECT CONNECTOR 
    1. Reconnect the yaw rate sensor sub bus line connector (J48) to the CAN J/C.

    NEXT: Go to next step. 

  13. CHECK CAN BUS LINE FOR SHORT TO GND (YAW RATE SENSOR SUB BUS LINE) 
    1. Disconnect the yaw rate sensor connector (Y1).
    2. Measure the resistance according to the value (s) in the table below.
      Fig 18: Identifying D1 Connector Terminals
      G02579918Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 19: D1 Connector Terminals Resistance Specifications
      G02579917Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. OK: REPLACE  YAWRATE SENSOR 

    NG: Go to next step. 

    REPAIR OR REPLACE YAW RATE SENSOR SUB BUS LINE OR CONNECTOR (CAN-H, CAN-L) 

  14. CONNECT CONNECTOR 
    1. Reconnect the steering angle sub bus line connector (J49) to the CAN J/C.

    NEXT: Go to next step. 

  15. CHECK CAN BUS LINE FOR SHORT TO GND (STEERING ANGLE SENSOR SUB BUS LINE) 
    1. Disconnect the steering angle sensor connector (S11).
    2. Measure the resistance according to the value (s) in the table below.
      Fig 20: Identifying D1 Connector Terminals
      G02579920Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 21: D1 Connector Terminals Resistance Specifications
      G02579919Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. OK: REPLACE STEERING ANGLE SENSOR (  STEERING SENSOR  ) 

    NG: Go to next step. 

    REPAIR OR REPLACE STEERING ANGLE SENSOR SUB BUS LINE OR CONNECTOR (CAN-H, CAN-L) 

  16. CONNECT CONNECTOR 
    1. Reconnect the ECM main bus line connector (J51) to the CAN J/C.

    NEXT: Go to next step. 

  17. CHECK CAN BUS LINE FOR SHORT TO GND (ECM MAIN BUS LINE) 
    1. Disconnect the ECM connector (E7).
    2. Measure the resistance according to the value (s) in the table below.
      Fig 22: Identifying D1 Connector Terminals
      G02579922Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 23: D1 Connector Terminals Resistance Specifications
      G02579921Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: REPLACE ECM (  ECM (1GR-FE)  (1GR-FE)  ECM (2UZ-FE)  (2UZ-FE)) 

    NG: Go to next step. 

    REPAIR OR REPLACE ECM MAIN BUS LINE OR CONNECTOR (CAN-H, CAN-L) 

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