Dtc C1582 Assist Map Number Mismatch

Steering. Corolla. Zre142 Aze141
Power Assist Systems. Corolla. Zre142 Aze141

DESCRIPTION

INSPECTION PROCEDURE

CHECK FOR DTC (CAN COMMUNICATION SYSTEM)

CHECK ECM

CHECK SKID CONTROL ECU

DTC C1582 Assist Map Number Mismatch


DESCRIPTION

When an incorrect ECM or an incorrect skid control ECU (brake actuator assembly) 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 number mismatch
  1. Power steering ECU
  2. CAN communication system
  3. ECM
  4. Skid control ECU (brake actuator assembly)

INSPECTION PROCEDURE

NOTICE:
If the power steering ECU has been replaced with a new one, perform the rotation angle sensor initialization and torque sensor zero point calibration (COROLLA_ZRE142 RM00000275305CX.html).
1.CHECK FOR DTC (CAN COMMUNICATION SYSTEM)

  1. Using the Techstream, check for DTCs and confirm that there are no problems in the CAN communication system (COROLLA_ZRE142 RM000000WIB0BUX.html).

    OK:
    DTC is not output.


NG
GO TO CAN COMMUNICATION SYSTEM (COROLLA_ZRE142 RM000000WI60ACX.html)
OK


2.CHECK ECM

  1. Check if an ECM that complies with the vehicle specifications is installed.

    OK:
    The ECM that complies with vehicle specifications is installed.
    Result
    Result
    		Proceed to
    OK
    		A
    NG (for 2ZR-FE)
    		B
    NG (for 2AZ-FE)
    		C


B
REPLACE ECM (COROLLA_ZRE142 RM000001CN0030X.html)

C
REPLACE ECM (COROLLA_ZRE142 RM000002WT506MX.html)
A


3.CHECK SKID CONTROL ECU

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

    OK:
    The skid control ECU (brake actuator assembly) that complies with vehicle specifications is installed.


NG
REPLACE BRAKE ACTUATOR ASSEMBLY (COROLLA_ZRE142 RM000003CZU00MX.html)
OK

REPLACE POWER STEERING ECU (COROLLA_ZRE142 RM000002XN605AX.html)