Toyota Venza manuals

Toyota Venza: Assist Map Number Mismatch (C1582)

DESCRIPTION

When an incorrect ECM or brake actuator assembly (skid control ECU) is installed after the assist map has been recorded in the power steering ECU, then DTC C1582 is stored because the data does not match the vehicle specifications.

DTC No.

DTC Detection Condition

Trouble Area

C1582

Assist map mismatch

  • Power steering ECU
  • CAN communication system
  • ECM
  • Brake actuator assembly (Skid control ECU)

PROCEDURE

1.

CHECK FOR DTC (CAN COMMUNICATION SYSTEM)

(a) Using the Techstream, check for DTCs and confirm that there are no problems in the CAN communication system (See page ).


OK:

DTC is not output.


NG

GO TO CAN COMMUNICATION SYSTEM


OK

2.

CHECK ECM

(a) Check if an ECM that complies with the vehicle specifications is installed.

OK:

ECM that complies with vehicle specifications is installed.

Result

Result

Proceed to

OK

A

NG (for 2GR-FE)

B

NG (for 1AR-FE)

C


B

REPLACE ECM


C

REPLACE ECM


A

3.

CHECK BRAKE ACTUATOR ASSEMBLY

(a) Check if a brake actuator assembly (skid control ECU) that complies with the vehicle specifications is installed.

OK:

Brake actuator assembly (skid control ECU) that complies with vehicle specifications is installed.


OK

REPLACE POWER STEERING ECU


NG

REPLACE BRAKE ACTUATOR ASSEMBLY

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DESCRIPTION The power steering ECU receives signals from the ECM and the brake actuator assembly (skid control ECU) via the CAN communication system. DTC No. DTC Detection Co ...

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