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Inspection Procedure

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  1. CHECK DLC3 
    1. Turn the ignition switch to the LOCK position.
    2. Measure the resistance according to the value (s) in the table below.

      Result: 

      TERMINALS SPECIFIED CONDITION CHART

      Tester connection Condition Specified value Result
      D3-6 (CANH) - D3-14 (CANL) Ignition SW OFF 108 to 132 Ω A
      D3-6 (CANH) - D3-14 (CANL) Ignition SW OFF 132 Ω or more B
      NOTE: When the measured value is 132 Q. or more and the CAN communication system diagnostic code is output, there may be a fault besides disconnection of the DLC3 sub bus line. For that reason, troubleshooting should be performed again from "How to proceed with troubleshooting" after repairing the trouble area.
      Fig 1: Checking DLC3 Connector Terminal
      G02909859Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. B: REPAIR OR REPLACE DLC3 SUB BUS LINE OR CONNECTOR (CAN-H, CAN-L) 
    2. A: GO TO NEXT STEP. 
  2. READ OUTPUT PTC 
    1. Read the output diagnostic codes.

      Standard: 

      DTC OUTPUT CHART

      U0073/94, U0123/62, U0124/95 and U0126/63 are output simultaneously. A
      Only U0126/63 is output. B
      NOTE: Diagnostic codes other than the CAN communication system diagnostic codes (U0073/94, U0123/62, U0124/95, U0126/63) may be output simultaneously with the CAN codes.
    1. B: Go to step   4 . 
    2. A: GO TO NEXT STEP. 
  3. CHECK CAN MAIN BUS LINE FOR DISCONNECTION (SKID CONTROL ECU - JUNCTION CONNECTOR) 
    1. Disconnect the connector (S27) from the skid control ECU.
    2. Measure the resistance according to the value (s) in the table below.

      Standard: 

      TERMINALS SPECIFIED CONDITION CHART

      Tester connection Condition Specified value
      S27-11 (CANH) - S27-25 (CANL) Ignition SW OFF 108 to 132 Ω
      Fig 2: Checking Skid Control ECU Junction Connector
      G02909860Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (SKID CONTROL ECU - JUNCTION CONNECTOR) 
    2. OK: REPLACE SKID CONTROL ECU WITH ACTUATOR (See  REPLACEMENT  ) 
  4. CHECK CAN MAIN BUS LINE FOR DISCONNECTION (STEERING SENSOR - JUNCTION CONNECTOR) 
    1. Turn the ignition switch to the LOCK position.
    2. Disconnect the connector (S14) from the steering sensor.
    3. Measure the resistance according to the value (s) in the table below.

      Standard: 

      TERMINALS SPECIFIED CONDITION CHART

      Tester connection Condition Specified value
      S14-10 (CANH) - S14-9 (CANL) Ignition SW OFF 108 to 132 Ω
      Fig 3: [Checking Steering Sensor Junction Connector
      G02909861Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (STEERING SENSOR - JUNCTION CONNECTOR) 
    2. OK: REPLACE STEERING SENSOR (See  REPLACEMENT  ) 
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