C1582

POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: C1582; Assist Map Number Mismatch; 2013 MY FR-S [03/2012 -]
C1582 - Assist Map Number Mismatch

DESCRIPTION

If an incorrect power steering ECU assembly or ECM or skid control ECU is installed, DTC C1582 is stored as the vehicle specification and data do not match.

HINT
The assist map is data written in the power steering ECU assembly to control the degree of assistance. The assist map is selected based on the vehicle's specified communication data.





INSPECTION PROCEDURE

NOTICE:
If the power steering ECU assembly is replaced with a new one, perform rotation angle sensor initialization and torque sensor zero point calibration Programming and Relearning.

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 Diagnosis System.

OK:

DTC is not output.

NG -- GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) How to Proceed With Troubleshooting
OK -- Continue to next step.

2. CHECK ECM

(a) Check if an ECM that complies with the vehicle specifications is installed.

NG -- REPLACE ECM Removal
OK -- Continue to next step.

3. CHECK SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)

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

NG -- REPLACE SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) Removal

OK -- REPLACE POWER STEERING ECU ASSEMBLY Removal