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Inspection Procedure

WARNING: This page is about a different car, the 2007 Toyota Tacoma. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK CAN BUS LINES FOR SHORT CIRCUIT (DLC3 SUB BUS LINE) 
    1. Disconnect the DLC3 sub bus line connector (J10) 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.
        Fig 1: Checking CAN Bus Lines For Short Circuit (DLC3 Sub Bus Line)
        G04413995Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in CONNECTOR TERMINAL RESISTANCE SPECIFICATION .

      Standard resistance 

      CONNECTOR TERMINAL RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Value
      D4-6 (CANH) - D4-14 (CANL)
      • Ignition switch OFF
      • Stop light switch OFF
      		 1 M ohms or more
      Fig 2: Identifying DLC3 Connector Terminal
      G04021879Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE DLC3 BRANCH LINE OR CONNECTOR (CAN-H, CAN-L) 

    OK: Go to next step 

  2. CONNECT CONNECTOR 
    1. Reconnect the DLC3 sub bus line connector (J10) to the CAN J/C.
  3. CHECK CAN BUS LINES FOR SHORT CIRCUIT (SKID CONTROL ECU SUB BUS LINE) 
    1. Disconnect the skid control ECU sub bus line connector (J6) 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.
      Fig 3: Disconnecting Skid Control ECU Sub Bus Line Connector (J6) From CAN J/C
      G00455027Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in CONNECTOR TERMINAL RESISTANCE SPECIFICATION .

      Standard resistance 

      CONNECTOR TERMINAL RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Value
      D4-6 (CANH) - D4-14 (CANL)
      • Ignition switch OFF
      • Stop light switch OFF
      		 54 to 69 ohms
      Fig 4: Identifying DLC3 Connector Terminal
      G04021879Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: Go to step   10 

    NG: Go to next step 

  4. CONNECT CONNECTOR 
    1. Reconnect the skid control ECU sub bus line connector (J6) to the CAN J/C.
  5. CHECK CAN BUS LINES FOR SHORT CIRCUIT (YAW RATE SENSOR SUB BUS LINE) 
    1. Disconnect the yaw rate sensor sub bus line connector (J7) from the CAN J/C.
      Fig 5: Disconnecting Yaw Rate Sensor Sub Bus Line Connector (J7) From CAN J/C
      G04413999Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      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 CONNECTOR TERMINAL RESISTANCE SPECIFICATION .

      Standard resistance 

      CONNECTOR TERMINAL RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Value
      D4-6 (CANH) - D4-14 (CANL)
      • Ignition switch OFF
      • Stop light switch OFF
      		 54 to 69 ohms
      Fig 6: Identifying DLC3 Connector Terminal
      G04021879Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: Go to step   12 

    NG: Go to next step 

  6. CONNECT CONNECTOR 
    1. Reconnect the yaw rate sensor sub bus line connector (J7) to the CAN J/C.
  7. CHECK CAN BUS LINES FOR SHORT CIRCUIT (STEERING ANGLE SENSOR SUB BUS LINE) 
    1. Disconnect the steering angle sensor sub bus line connector (J8) from the CAN J/C.
      Fig 7: Disconnecting Steering Angle Sensor Sub Bus Line Connector (J8) From CAN J/C
      G04414001Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      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 CONNECTOR TERMINAL RESISTANCE SPECIFICATION .

      Standard resistance 

      CONNECTOR TERMINAL RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Value
      D4-6 (CANH) - D4-14 (CANL)
      • Ignition switch OFF
      • Stop light switch OFF
      		 54 to 69 ohms
      Fig 8: Identifying DLC3 Connector Terminal
      G04021879Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: Go to step   14 

    NG: Go to next step 

  8. CONNECT CONNECTOR 
    1. Reconnect the steering angle sensor sub bus line connector (J8) to the CAN J/C.
  9. CHECK CAN BUS LINES FOR SHORT CIRCUIT (ECM MAIN BUS LINE) 
    1. Disconnect the ECM main bus line connector (J10) from the CAN J/C.
      Fig 9: Disconnecting ECM Main Bus Line Connector (J10) From CAN J/C
      G04414003Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      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 CONNECTOR TERMINAL RESISTANCE SPECIFICATION .

      Standard resistance 

      CONNECTOR TERMINAL RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Value
      D4-6 (CANH) - D4-14 (CANL)
      • Ignition switch OFF
      • Stop light switch OFF
      		 108 to 132 ohms
      Fig 10: Identifying DLC3 Connector Terminal
      G04021879Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: Go to step   16 

    NG: REPLACE CAN J/C 

  10. CONNECT CONNECTOR 
    1. Reconnect the skid control ECU sub bus line connector (J6) to the CAN J/C.
  11. CHECK CAN BUS LINES FOR SHORT CIRCUIT (SKID CONTROL ECU SUB BUS LINE) 
    1. Disconnect the skid control ECU connector (S1).
    2. Measure the resistance according to the value(s) in CONNECTOR TERMINAL RESISTANCE SPECIFICATION .

      Standard resistance 

      CONNECTOR TERMINAL RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Value
      D4-6 (CANH) - D4-14 (CANL)
      • Ignition switch OFF
      • Stop light switch OFF
      		 54 to 69 ohms
      Fig 11: Identifying DLC3 Connector Terminal
      G04021879Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: REPLACE MASTER CYLINDER SOLENOID 

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

  12. CONNECT CONNECTOR 
    1. Reconnect the yaw rate sensor sub bus line connector (J7) to the CAN J/C.
  13. CHECK CAN BUS LINES FOR SHORT CIRCUIT (YAW RATE SENSOR SUB BUS LINE) 
    1. Disconnect the yaw rate sensor connector (Y1).
    2. Measure the resistance according to the value(s) in CONNECTOR TERMINAL RESISTANCE SPECIFICATION .

      Standard resistance 

      CONNECTOR TERMINAL RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Value
      D4-6 (CANH) - D4-14 (CANL)
      • Ignition switch OFF
      • Stop light switch OFF
      		 54 to 69 ohms
      Fig 12: Identifying DLC3 Connector Terminal
      G04021879Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: REPLACE YAW RATE SENSOR 

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

  14. CONNECT CONNECTOR 
    1. Reconnect the steering angle sensor sub bus line connector (J8) to the CAN J/C.
  15. CHECK CAN BUS LINES FOR SHORT CIRCUIT (STEERING ANGLE SENSOR SUB BUS LINE) 
    1. Disconnect the steering angle sensor connector (S9).
    2. Measure the resistance according to the value(s) in CONNECTOR TERMINAL RESISTANCE SPECIFICATION .

      Standard resistance 

      CONNECTOR TERMINAL RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Value
      D4-6 (CANH) - D4-14 (CANL)
      • Ignition switch OFF
      • Stop light switch OFF
      		 54 to 69 ohms
      Fig 13: Identifying DLC3 Connector Terminal
      G04021879Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: REPLACE STEERING ANGLE SENSOR 

    NG: REPAIR OR REPLACE STEERING ANGLE SENSOR BRANCH LINE OR CONNECTOR (CAN-H, CAN-L) 

  16. CONNECT CONNECTOR 
    1. Reconnect the ECM main bus line connector (J10) to the CAN J/C.
  17. CHECK CAN BUS LINES FOR SHORT CIRCUIT (ECM MAIN BUS LINE) 
    1. Disconnect the ECM connector (E7).
    2. Measure the resistance according to the value(s) in CONNECTOR TERMINAL RESISTANCE SPECIFICATION .

      Standard Resistance 

      CONNECTOR TERMINAL RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Value
      D4-6 (CANH) - D4-14 (CANL)
      • Ignition switch OFF
      • Stop light switch OFF
      		 108 to 132 ohms
      Fig 14: Identifying DLC3 Connector Terminal
      G04021879Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: REPLACE ECM 

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

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