Toyota Camry (XV70): Assist Map Number Un-Writing (C1581)

DESCRIPTION

This DTC will be stored if the power steering ECU (rack and pinion power steering gear assembly) determines that the assist map is not written in the ECU.

CAUTION / NOTICE / HINT

NOTICE:

If the rack and pinion power steering gear assembly has been replaced, perform assist map writing and torque sensor zero point calibration.

Click here

HINT:

Related parts store information necessary for assist map writing.

Related Part:

• ECM
• Main body ECU (Multiplex network body ECU)
• Skid control ECU (Brake actuator assembly)

PROCEDURE

(a) Perform assist map writing.

(b) Check for DTCs.

B

END

A

(a) Check for DTCs.

Click here

B

GO TO CAN COMMUNICATION SYSTEM

A

(a) Confirm if the related part has the correct part number.

NOTICE:

When removing the related part to check it, be sure to follow the appropriate procedures and precautions.

• ECM

  for A25A-FKS: Click here

  for 2GR-FKS: Click here

• Main body ECU (Multiplex network body ECU)

  Click here

• Skid control ECU (Brake actuator assembly)

  Click here

B

GO TO STEP 5

A

(a) Select Health Check on the Techstream screen and check if system DTCs of the related part are output.

HINT:

If system DTCs of the related part are stored, assist map writing to the power steering ECU (rack and pinion power steering gear assembly) may not be performed properly.

A

REPAIR CIRCUIT INDICATED BY OUTPUT CODE

B

REPLACE RACK AND PINION POWER STEERING GEAR ASSEMBLY

(a) Replace the related part with one that has the correct part number.

• ECM

  for A25A-FKS: Click here

  for 2GR-FKS: Click here

• Main body ECU (Multiplex network body ECU)

  Click here

• Skid control ECU (Brake actuator assembly)

  Click here

NEXT

(a) Check for DTCs.

A

END

B

REPLACE RACK AND PINION POWER STEERING GEAR ASSEMBLY

READ NEXT: