Toyota 4Runner manuals

Toyota 4Runner: Steering Angle Sensor Circuit (C15F1)

DESCRIPTION

The power steering ECU assembly receives steering angle signals from the steering angle sensor via CAN communication. The power steering ECU assembly provides appropriate assisting force in accordance with the steering angle signal.

DTC Code

DTC Detection Condition

Trouble Area

C15F1

An abnormal steering angle signal is received.

  • Steering angle sensor
  • CAN communication system
  • Power steering ECU assembly

PROCEDURE

1.

CHECK OTHER DTC OUTPUT (CAN COMMUNICATION SYSTEM)

(a) Check if DTC U0126 is output (See page ).


Result

Result

Proceed to

DTC U0126 is not output.

A

DTC U0126 is output.

B

HINT:

DTC U0126 indicates a CAN communication malfunction in the power steering system.


B

GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING)


A

2.

CHECK OTHER DTC OUTPUT (VEHICLE STABILITY CONTROL SYSTEM)

(a) Using the Techstream, check for DTCs related to the steering angle sensor and confirm that there are no problems in the vehicle stability control system (See page ).


Result

Result

Proceed to

DTC is not output.

A

DTC is output.

B


A

REPLACE POWER STEERING ECU ASSEMBLY


B

GO TO VEHICLE STABILITY CONTROL SYSTEM (DIAGNOSTIC TROUBLE CODE CHART)

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