DTC    C1581/26    Assist Map Number Un-Writing

for Preparation Click here


DESCRIPTION

When a map is not recorded in the steering column assembly (power steering ECU), then this DTC is stored.

DTC No.
DTC Detection Condition
Trouble Area
C1581/26
Assist map not written in power steering ECU
  1. Assist map is not written
  2. CAN communication system
  3. SFI system (ECD system)
  4. Vehicle stability control system
  5. Steering column assembly

INSPECTION PROCEDURE

NOTICE:
When the steering column assembly is replaced, perform the assist map writing (Click here).

1.PERFORM ASSIST MAP WRITING

  1. Perform the assist map writing (Click here).


NEXT


2.CHECK DTC OUTPUT

  1. Check for DTCs (Click here).
    Result 
    Result
    		Proceed to
    DTC C1581/81 is not output
    		A
    DTC C1581/81 is output
    		B



B
Go to step 3
A

END 

3.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


4.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


5.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


6.CHECK BRAKE ACTUATOR ASSEMBLY (SKID CONTROL ECU)

  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


7.CHECK VEHICLE STABILITY CONTROL SYSTEM

  1. Check 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)