Toyota Venza: Assist Map Number Mismatch (C1582)

Toyota Venza Service Manual / Power Assist Systems / Power Steering System / 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.

GO TO CAN COMMUNICATION SYSTEM

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

REPLACE ECM

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.

REPLACE POWER STEERING ECU

REPLACE BRAKE ACTUATOR ASSEMBLY

Lost Communication with ECM / PCM "A" (U0100,U0129)

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 ...

PIG Power Supply Voltage Malfunction (C1552)

DESCRIPTION When a problem occurs in the power steering system, the power source relay circuit is shut off to stop the power assist. DTC No. DTC Detection Condition ...

Other materials about Toyota Venza:

Seat belts
Make sure that all occupants are wearing their seat belts before driving the vehicle. - Correct use of the seat belts 1. Extend the shoulder belt so that it comes fully over the shoulder, but does not come into contact with the neck or slide off ...

Rocker Panel Moulding
Components COMPONENTS ILLUSTRATION Removal REMOVAL PROCEDURE 1. REMOVE FRONT FENDER OUTSIDE MOULDING 2. REMOVE NO. 2 ROCKER PANEL MOULDING PROTECTOR 3. REMOVE REAR ROCKER PANEL MOULDING END COVER 4. REMOVE BODY ROCKER PANEL MOULDING ASS ...

Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 1 Sensor 1) (P0031,P0032,P101D)
DESCRIPTION Refer to DTC P2195 (See page ). HINT: When any of these DTCs is stored, the ECM enters fail-safe mode. The ECM turns off the air fuel ratio sensor heater in fail-safe mode. Fail-safe mode continues until the ignition switch is t ...