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:

Electrical Key Oscillator(for Center Floor)
Components COMPONENTS ILLUSTRATION Installation INSTALLATION PROCEDURE 1. INSTALL ELECTRICAL KEY OSCILLATOR (a) Engage the clamp and install the electrical key oscillator. NOTICE: Be careful when installing the electrical key osci ...

Removal
REMOVAL PROCEDURE 1. DISCONNECT FRONT DOOR OPENING TRIM WEATHERSTRIP 2. REMOVE FRONT PILLAR GARNISH 3. REMOVE NO. 2 INSTRUMENT PANEL SPEAKER PANEL SUB-ASSEMBLY 4. REMOVE FRONT NO. 4 SPEAKER ASSEMBLY (for 13 Speakers) (a) Remove the 2 ...

Installation
INSTALLATION PROCEDURE 1. INSTALL SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY NOTICE: Do not replace the spiral cable with the battery connected and the ignition switch on (IG). Do not rotate the spiral cable with the battery connected and the ig ...