Last Modified: 11-20-2023 6.11:8.1.0 Doc ID: RM1000000012TD9
Model Year Start: 2018 Model: Camry Prod Date Range: [03/2017 - 06/2017]
Title: POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: C1582; Assist Map Number Mismatch; 2018 MY Camry [03/2017 - 06/2017]

DTC

C1582

Assist Map Number Mismatch

DESCRIPTION

When an incorrect ECM, main body ECU (multiplex network body ECU) or skid control ECU (brake actuator assembly) is installed after the assist map has been written to the power steering ECU (rack and pinion power steering gear assembly), DTC C1582 is stored because the information stored in the power steering ECU (rack and pinion power steering gear assembly) does not match the vehicle specifications.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

Warning Indicate

Return-to-normal Condition

Note

C1582

Assist Map Number Mismatch

Assist map number mismatch

  • CAN communication system
  • Incorrect ECM
  • Incorrect main body ECU (multiplex network body ECU)
  • Incorrect skid control ECU (brake actuator assembly)
  • Rack and pinion power steering gear assembly

EPS warning light: Does not come on

Ignition switch is turned to ON again

-

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 2018 - 2024 MY Camry [03/2017 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: CALIBRATION

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

1.

CHECK CAN COMMUNICATION SYSTEM

(a) Check for DTCs.

Click here 2018 - 2024 MY Camry [03/2017 -        ]; NETWORKING: CAN COMMUNICATION SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

Result

Proceed to

CAN communication system DTCs are not output.

A

CAN communication system DTCs are output.

B

B

GO TO CAN COMMUNICATION SYSTEM

A

2.

CHECK RELATED PART

(a) Check if the part below has been replaced with an incorrect part in the past.

Related Part

ECM

Main body ECU (Multiplex network body ECU)

Skid control ECU (Brake actuator assembly)

NOTICE:

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

  • ECM

    Click here 2018 MY Camry [03/2017 - 06/2017]; A25A-FKS (ENGINE CONTROL): ECM: REMOVAL

  • Main body ECU (Multiplex network body ECU)

    Click here 2018 MY Camry [03/2017 - 06/2017]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL

  • Skid control ECU (Brake actuator assembly)

    Click here 2018 MY Camry [03/2017 - 06/2017]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: BRAKE ACTUATOR: REMOVAL

(b) When DTC C1582 is output and parts have not been exchanged, replace the power steering ECU (rack and pinion power steering gear assembly) as it may have an internal malfunction.

NOTICE:

If the rack and pinion power steering gear assembly has been replaced, perform assist map writing.

Click here 2018 - 2024 MY Camry [03/2017 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: CALIBRATION

Result

Proceed to

The related part has an incorrect part number.

A

The related part has the correct part number, or a related part and rack and pinion power steering gear assembly have not been replaced.

B

B

REPLACE RACK AND PINION POWER STEERING GEAR ASSEMBLY

A

3.

REPLACE RELATED PART WITH PART THAT HAS CORRECT PART NUMBER

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

  • ECM

    Click here 2018 MY Camry [03/2017 - 06/2017]; A25A-FKS (ENGINE CONTROL): ECM: REMOVAL

  • Main body ECU (Multiplex network body ECU)

    Click here 2018 MY Camry [03/2017 - 06/2017]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL

  • Skid control ECU (Brake actuator assembly)

    Click here 2018 MY Camry [03/2017 - 06/2017]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: BRAKE ACTUATOR: REMOVAL

NEXT

4.

CHECK FOR DTC

(a) Check for DTCs.

Chassis > EMPS > Trouble Codes

Result

Proceed to

DTCs are not output.

A

DTCs are output.

B

A

END

B

REPLACE RACK AND PINION POWER STEERING GEAR ASSEMBLY