Last Modified: 01-30-2024 6.11:8.1.0 Doc ID: RM10000000208SH
Model Year Start: 2022 Model: RAV4 Prod Date Range: [12/2021 -           ]
Title: POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Type B): C1582; Assist Map Number Mismatch; 2022 - 2024 MY RAV4 RAV4 HV [12/2021 -        ]

DTC

C1582

Assist Map Number Mismatch

DESCRIPTION

for Gasoline Model:

  • 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.

for HV Model:

  • When an incorrect hybrid vehicle control ECU assembly, main body ECU (multiplex network body ECU) or No. 2 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

for Gasoline Model:

  • 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

for HV Model:

  • CAN communication system
  • Incorrect hybrid vehicle control ECU assembly
  • Incorrect main body ECU (multiplex network body ECU)
  • Incorrect No. 2 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 2019 - 2024 MY RAV4 RAV4 HV [02/2019 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Type B): CALIBRATION

HINT:

Related parts store information necessary for assist map writing.

Related Part:

for Gasoline Model:

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

for HV Model:

  • Hybrid vehicle control ECU assembly
  • Main body ECU (Multiplex network body ECU)
  • No. 2 skid control ECU (brake actuator assembly)

PROCEDURE

1.

CHECK CAN COMMUNICATION SYSTEM

(a) Check for DTCs.

for Gasoline Model: Click here 2019 - 2024 MY RAV4 [11/2018 -        ]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): HOW TO PROCEED WITH TROUBLESHOOTING

for HV Model: Click here 2019 - 2024 MY RAV4 HV [02/2019 -        ]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV Model): HOW TO PROCEED WITH TROUBLESHOOTING

Result

Proceed to

CAN communication system DTCs are not output. (for Gasoline Model)

A

CAN communication system DTCs are not output. (for HV Model)

B

CAN communication system DTCs are output.

C

B

GO TO STEP 5

C

GO TO CAN COMMUNICATION SYSTEM

for Gasoline Model: Click here 2019 - 2024 MY RAV4 [11/2018 -        ]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): HOW TO PROCEED WITH TROUBLESHOOTING

for HV Model: Click here 2019 - 2024 MY RAV4 HV [02/2019 -        ]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV Model): HOW TO PROCEED WITH TROUBLESHOOTING

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 2021 - 2022 MY RAV4 [08/2020 - 10/2022]; A25A-FKS (ENGINE CONTROL): ECM: REMOVAL 2023 MY RAV4 [10/2022 - 10/2023]; A25A-FKS (ENGINE CONTROL): ECM: REMOVAL 2024 MY RAV4 [10/2023 -        ]; A25A-FKS (ENGINE CONTROL): ECM: REMOVAL

  • Main body ECU (Multiplex network body ECU)

    Click here 2022 MY RAV4 RAV4 HV [12/2021 - 10/2022]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL 2023 MY RAV4 RAV4 HV [10/2022 - 10/2023]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL 2024 MY RAV4 RAV4 HV [10/2023 -        ]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL

  • Skid control ECU (Brake actuator assembly)

    Click here 2021 - 2022 MY RAV4 RAV4 HV [08/2020 - 10/2022]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: BRAKE ACTUATOR (w/ Vacuum Brake Booster): REMOVAL 2023 MY RAV4 RAV4 HV [10/2022 - 10/2023]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: BRAKE ACTUATOR (w/ Vacuum Brake Booster): REMOVAL 2024 MY RAV4 RAV4 HV [10/2023 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: BRAKE ACTUATOR (w/ Vacuum Brake Booster): 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 2019 - 2024 MY RAV4 RAV4 HV [02/2019 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Type B): 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 2022 MY RAV4 RAV4 HV [12/2021 - 10/2022]; STEERING GEAR / LINKAGE: STEERING GEAR: REMOVAL 2023 MY RAV4 RAV4 HV [10/2022 - 10/2023]; STEERING GEAR / LINKAGE: STEERING GEAR: REMOVAL 2024 MY RAV4 RAV4 HV [10/2023 -        ]; STEERING GEAR / LINKAGE: STEERING GEAR: REMOVAL

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 2021 - 2022 MY RAV4 [08/2020 - 10/2022]; A25A-FKS (ENGINE CONTROL): ECM: REMOVAL 2023 MY RAV4 [10/2022 - 10/2023]; A25A-FKS (ENGINE CONTROL): ECM: REMOVAL 2024 MY RAV4 [10/2023 -        ]; A25A-FKS (ENGINE CONTROL): ECM: REMOVAL

  • Main body ECU (Multiplex network body ECU)

    Click here 2022 MY RAV4 RAV4 HV [12/2021 - 10/2022]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL 2023 MY RAV4 RAV4 HV [10/2022 - 10/2023]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL 2024 MY RAV4 RAV4 HV [10/2023 -        ]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL

  • Skid control ECU (Brake actuator assembly)

    Click here 2021 - 2022 MY RAV4 RAV4 HV [08/2020 - 10/2022]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: BRAKE ACTUATOR (w/ Vacuum Brake Booster): REMOVAL 2023 MY RAV4 RAV4 HV [10/2022 - 10/2023]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: BRAKE ACTUATOR (w/ Vacuum Brake Booster): REMOVAL 2024 MY RAV4 RAV4 HV [10/2023 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: BRAKE ACTUATOR (w/ Vacuum Brake Booster): 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 2022 MY RAV4 RAV4 HV [12/2021 - 10/2022]; STEERING GEAR / LINKAGE: STEERING GEAR: REMOVAL 2023 MY RAV4 RAV4 HV [10/2022 - 10/2023]; STEERING GEAR / LINKAGE: STEERING GEAR: REMOVAL 2024 MY RAV4 RAV4 HV [10/2023 -        ]; STEERING GEAR / LINKAGE: STEERING GEAR: REMOVAL

5.

CHECK RELATED PART

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

Related Part

Hybrid vehicle control ECU assembly

Main body ECU (Multiplex network body ECU)

No. 2 skid control ECU (brake actuator assembly)

NOTICE:

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

  • Hybrid vehicle control ECU assembly

    Click here 2022 MY RAV4 HV [12/2021 - 10/2022]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL 2023 MY RAV4 HV [10/2022 - 10/2023]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL 2024 MY RAV4 HV [10/2023 -        ]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL

  • Main body ECU (Multiplex network body ECU)

    Click here 2022 MY RAV4 RAV4 HV [12/2021 - 10/2022]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL 2023 MY RAV4 RAV4 HV [10/2022 - 10/2023]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL 2024 MY RAV4 RAV4 HV [10/2023 -        ]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL

  • No. 2 skid control ECU (brake actuator assembly)

    Click here 2022 MY RAV4 RAV4 HV [12/2021 - 10/2022]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: BRAKE ACTUATOR (w/o Vacuum Brake Booster): REMOVAL 2023 MY RAV4 RAV4 HV [10/2022 - 10/2023]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: BRAKE ACTUATOR (w/o Vacuum Brake Booster): REMOVAL 2024 MY RAV4 RAV4 HV [10/2023 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: BRAKE ACTUATOR (w/o Vacuum Brake Booster): 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 2019 - 2024 MY RAV4 RAV4 HV [02/2019 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Type B): 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 2022 MY RAV4 RAV4 HV [12/2021 - 10/2022]; STEERING GEAR / LINKAGE: STEERING GEAR: REMOVAL 2023 MY RAV4 RAV4 HV [10/2022 - 10/2023]; STEERING GEAR / LINKAGE: STEERING GEAR: REMOVAL 2024 MY RAV4 RAV4 HV [10/2023 -        ]; STEERING GEAR / LINKAGE: STEERING GEAR: REMOVAL

A

6.

REPLACE RELATED PART WITH PART THAT HAS CORRECT PART NUMBER

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

  • Hybrid vehicle control ECU assembly

    Click here 2022 MY RAV4 HV [12/2021 - 10/2022]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL 2023 MY RAV4 HV [10/2022 - 10/2023]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL 2024 MY RAV4 HV [10/2023 -        ]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL

  • Main body ECU (Multiplex network body ECU)

    Click here 2022 MY RAV4 RAV4 HV [12/2021 - 10/2022]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL 2023 MY RAV4 RAV4 HV [10/2022 - 10/2023]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL 2024 MY RAV4 RAV4 HV [10/2023 -        ]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL

  • No. 2 skid control ECU (brake actuator assembly)

    Click here 2022 MY RAV4 RAV4 HV [12/2021 - 10/2022]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: BRAKE ACTUATOR (w/o Vacuum Brake Booster): REMOVAL 2023 MY RAV4 RAV4 HV [10/2022 - 10/2023]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: BRAKE ACTUATOR (w/o Vacuum Brake Booster): REMOVAL 2024 MY RAV4 RAV4 HV [10/2023 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: BRAKE ACTUATOR (w/o Vacuum Brake Booster): REMOVAL

NEXT

7.

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 2022 MY RAV4 RAV4 HV [12/2021 - 10/2022]; STEERING GEAR / LINKAGE: STEERING GEAR: REMOVAL 2023 MY RAV4 RAV4 HV [10/2022 - 10/2023]; STEERING GEAR / LINKAGE: STEERING GEAR: REMOVAL 2024 MY RAV4 RAV4 HV [10/2023 -        ]; STEERING GEAR / LINKAGE: STEERING GEAR: REMOVAL