Toyota Tacoma manuals

Toyota Tacoma (2015-2018) Service Manual: Steering Angle Sensor (C1A47)

DESCRIPTION

The forward recognition camera receives steering angle information from the spiral cable with sensor sub-assembly. If the forward recognition camera detects a spiral cable with sensor sub-assembly malfunction, DTC C1A47 is stored.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C1A47

Steering Angle Sensor

3 seconds after the ignition switch is turned to ON, a signal from the spiral cable with sensor sub-assembly indicating that there is a spiral cable with sensor sub-assembly malfunction is detected by the forward recognition camera for 5 seconds or more.

  • Vehicle stability control system
  • Spiral cable with sensor sub-assembly
  • Forward recognition camera

CAUTION / NOTICE / HINT

NOTICE:

  • When replacing the forward recognition camera, always replace it with a new one. If a forward recognition camera which was installed to another vehicle is used, the information stored in the forward recognition camera will not match the information from the vehicle. As a result, a DTC may be stored.
  • If the forward recognition camera has been replaced with a new one, be sure to perform Forward Recognition Camera Axis Adjustment.

    Click here

  • The forward recognition camera system uses the CAN communication system. First, confirm that there are no malfunctions in the CAN communication system. Refer to How to Proceed with Troubleshooting.

    Click here

PROCEDURE

1.

CHECK FOR DTCs (VEHICLE STABILITY CONTROL SYSTEM)

HINT:

Forward recognition camera system DTC C1A47 may be stored due to a malfunction in the vehicle stability control system. Therefore it is necessary to check for and troubleshoot vehicle stability control system DTCs first.

(a) Check for DTCs.

  • for Vacuum Brake Booster

    Click here

  • for Hydraulic Brake Booster

    Click here

Result

Proceed to

Vehicle stability control system DTCs are not output

A

Vehicle stability control system DTCs are output (for Vacuum Brake Booster)

B

Vehicle stability control system DTCs are output (for Hydraulic Brake Booster)

C

B

GO TO VEHICLE STABILITY CONTROL SYSTEM

C

GO TO VEHICLE STABILITY CONTROL SYSTEM

A

2.

CHECK FOR DTCs (FORWARD RECOGNITION CAMERA SYSTEM)

(a) Clear the DTCs.

Click here (b) Make sure that the DTC detection conditions are met.

(b) Make sure that the DTC detection conditions are met.

HINT:

If the conditions are not met, the system cannot detect the malfunction.

(c) Check for DTCs.

Click here

Result

Proceed to

DTC C1A47 is not output

A

DTC C1A47 is output

B

A

USE SIMULATION METHOD TO CHECK

B

3.

REPLACE FORWARD RECOGNITION CAMERA

(a) Replace the forward recognition camera.

Click here (b) Perform forward recognition camera axis adjustment.

(b) Perform forward recognition camera axis adjustment.

Click here

NEXT

4.

CHECK FOR DTCs (FORWARD RECOGNITION CAMERA SYSTEM)

(a) Clear the DTCs.

Click here (b) Make sure that the DTC detection conditions are met.

(b) Make sure that the DTC detection conditions are met.

HINT:

If the conditions are not met, the system cannot detect the malfunction.

(c) Check for DTCs.

Click here

Result

Proceed to

DTC C1A47 is not output

A

DTC C1A47 is output

B

A

END (FORWARD RECOGNITION CAMERA WAS DEFECTIVE)

B

REPLACE SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY

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