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:

Installation
INSTALLATION PROCEDURE 1. INSTALL REAR ENGINE OIL SEAL (a) Apply MP grease to the lip of a new oil seal. NOTICE: Do not allow foreign matter to contact the lip of the oil seal. Do not allow MP grease to contact the dust seal. ...

Installation
INSTALLATION CAUTION / NOTICE / HINT HINT: Use the same procedure for the RH side and LH side. The procedure listed below is for the LH side. PROCEDURE 1. INSTALL REAR AXLE CARRIER SUB-ASSEMBLY (a) Temporarily install the rea ...

Front Door Courtesy Switch
Components COMPONENTS ILLUSTRATION Inspection INSPECTION PROCEDURE 1. INSPECT COURTESY LIGHT SWITCH (a) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection Switch C ...