DTC    C1582/26    Assist Map Number Mismatch

for Preparation Click here


DESCRIPTION

When an incorrect ECU or brake actuator assembly (skid control ECU) is installed after the assist map has been recorded in the steering column assembly (power steering ECU), then DTC C1582/26 is stored because the data does not match the vehicle specifications.

DTC No.
DTC Detection Condition
Trouble Area
C1582/26
Assist map number mismatch
  1. CAN communication system
  2. Incorrect ECM
  3. Incorrect brake actuator assembly
  4. Steering column assembly

INSPECTION PROCEDURE

1.CHECK CAN COMMUNICATION SYSTEM

  1. Check for DTCs of the CAN communication system (Click here).
    Result 
    Result
    		Proceed to
    DTCs are not output
    		A
    DTCs are output
    		B



B
GO TO CAN COMMUNICATION SYSTEM (Click here)
A


2.CHECK ECM

  1. Check that the correct ECM is installed.

    OK:
    The correct ECM is installed.

    Result 
    Result
    		Proceed to
    OK
    		A
    NG (for 1KR-FE engine)
    		B
    NG (for 1NR-FE engine)
    		C
    NG (for 1ND-TV engine)
    		D



B
REPLACE ECM (Click here)

C
REPLACE ECM (Click here)

D
REPLACE ECM (Click here)
A


3.CHECK SFI SYSTEM (ECD SYSTEM)

  1. Check for DTCs of the SFI system or ECD system.
    Engine Type
    		See Page
    1KR-FE engine
    		 Click here
    1NR-FE engine
    		 Click here
    1ND-TV engine
    		 Click here
    Result 
    Result
    		Proceed to
    DTCs are not output
    		A
    DTCs are output (for 1KR-FE engine)
    		B
    DTCs are output (for 1NR-FE engine)
    		C
    DTCs are output (for 1ND-TV engine)
    		D



B
GO TO SFI SYSTEM (Click here)

C
GO TO SFI SYSTEM (Click here)

D
GO TO ECD SYSTEM (Click here)
A


4.CHECK BRAKE ACTUATOR ASSEMBLY

  1. Check that the correct brake actuator assembly (skid control ECU) is installed.

    OK:
    The correct brake actuator assembly (skid control ECU) is installed.



NG
REPLACE BRAKE ACTUATOR ASSEMBLY (Click here)
OK


5.CHECK VEHICLE STABILITY CONTROL SYSTEM

  1. Check for DTCs of the vehicle stability control system (Click here).
    Result 
    Result
    		Proceed to
    DTCs are not output
    		A
    DTCs are output
    		B



B
GO TO VEHICLE STABILITY CONTROL SYSTEM (Click here)
A

REPLACE STEERING COLUMN ASSEMBLY (Click here)