Inspection Procedure

WARNING: This page is about a different car, the 2004 Toyota Sienna. However, it is still accessible from the selected car via links, so may be relevant.

CHECK RESISTANCE (CANL - CANH OF DLC3)

Measure the resistance between the terminal CANL and CANH of the DLC3.

Fig 1: Identifying Terminals CANL & CANH Of DLC3

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

RESISTANCE

A	1 MΩ or more
B	54 to 66 Ω

B: Go to step 3 .
A: Go to next step.

CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - DLC3)
1. Disconnect the junction connector (J17).
2. Measure the resistance between the terminal CANL of the DLC3 and CANL of the junction connector (J17).
  OK:
  
  Resistance: 1 Ω or less
3. Measure the resistance between the terminal CANH of the DLC3 and CANH of the junction connector (J17).
  
  Fig 2: Identifying DLC3 & Junction Connector (J17)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  OK:
  
  Resistance: 1 Ω or less
1. OK: Go to step 3
2. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR AND GO TO STEP 3
CHECK RESISTANCE (CANL - CANH OF STEERING ANGLE SENSOR CONNECTOR)
1. Disconnect the steering angle sensor connector.
2. Measure the resistance between the terminal CANL and CANH of the steering angle sensor wire harness side connector.
  
  Fig 3: Identifying Terminals CANL & CANH Of Steering Angle Sensor Connector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  OK:
  
  Resistance: 108 to 132 Ω
1. OK: Go to step 5 .
2. NG: Go to next step.
CHECK JUNCTION CONNECTOR ((J17))
1. Disconnect the junction connector (J17).
2. Measure the resistance between the terminal 1 and 4 of the junction connector.
  OK:
  
  Resistance: 1 Ω or less
3. Measure the resistance between the terminal 12 and 15 of the junction connector.
  
  Fig 4: Identifying Terminals CANH & CANL Of Junction Connector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  OK:
  
  Resistance: 1 Ω or less
1. NG: REPLACE JUNCTION CONNECTOR
2. OK: REPAIR OR REPLACE HARNESS OR CONNECTOR
CHECK RESISTANCE (CANL - CANH OF STEERING ANGLE SENSOR)
1. Disconnect the skid control ECU connector.
2. Measure the resistance between the terminal CANL and CANH of the steering angle sensor.
  
  Fig 5: Identifying Terminals CANH & CANL
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  OK:
  
  Resistance: 108 to 132 Ω
1. NG: Go to step 6
2. OK: IF THE SAME CODE IS STILL OUTPUT AFTER THE DTC IS DELETED, CHECK THE CONTACT CONDITION OF EACH CONNECTION
CHECK TERMINAL VOLTAGE (STEERING ANGLE SENSOR CONNECTOR)
1. Disconnect the steering angle sensor connector.
2. Turn the ignition switch ON.
3. Measure voltage between terminals 1 and 2, 2 and 3 of the steering angle sensor harness side connector.
  
  Fig 6: Identifying Terminals ESS, IGI & BAT Of Steering Angle Sensor
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  OK:
  
  Voltage: 10 to 14 V
1. OK: REPAIR OR REPLACE HARNESS OR CONNECTOR
2. NG: Go to next step.
CHECK HARNESS AND CONNECTOR (STEERING ANGLE SENSOR - BODY GROUND)
1. Disconnect the steering angle sensor connector.
2. Measure the resistance between terminal ESS of the yaw rate sensor connector and body ground.
  
  Fig 7: Identifying Terminals ESS Of Yaw Rate Sensor
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  OK:
  
  Resistance: 1 Ω or less
1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
2. OK: REPLACE STEERING ANGLE SENSOR