DTC C2544: Auto Start Stop System

DTC detecting condition: 

• When a failure of CAN communication is detected after the ignition switch is ON.
• When the power steering control module has a detection error after the ignition switch is ON.

Trouble symptom: 

Auto Start Stop does not operate.

1. CHECK DTC  .

   Read the DTC of [Auto Start Stop] using the Subaru Select Monitor. Refer to AUTO START STOP (DIAGNOSTICS)>Diagnostic Trouble Code (DTC) .

   Is DTC of Auto Start Stop system displayed?

   Yes  : Perform the diagnosis according to the DTC. Refer to AUTO START STOP (DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST .

   No  : Go to  2.

2. CHECK LAN SYSTEM  .

   Check the LAN system. Refer to LAN SYSTEM (DIAGNOSTICS)>BASIC DIAGNOSTIC PROCEDURE .

   Is the check result OK?

   Yes  : Go to  3.

   No  : Perform the diagnosis for LAN system.

3. CHECK POWER STEERING CONTROL MODULE  .
   1. Execute the inspection mode. Refer to POWER STEERING (DIAGNOSTICS)>Inspection Mode .
   2. Read the DTC of [Power Steering] using the Subaru Select Monitor. Refer to POWER STEERING (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .

      Is DTC C2544 displayed in current malfunction?

      Yes  : Replace the steering gearbox. Refer to POWER ASSISTED SYSTEM (POWER STEERING)>Electric Power Steering Gearbox .

      No  : It results from a temporary noise interference. Clear the memory to finish the diagnosis. Refer to COMMON (DIAG)>CLEAR MEMORY .