Except For CO Model

DTC detecting condition:

Defective keyless access control module
When inaccessible to ROM in keyless access control module.

Trouble symptom:

Engine will not start.

CAUTION:

For replacement procedure of keyless access control module, refer to the "REGISTRATION INSTRUCTIONS FOR IMMOBILIZER" provided as a separate volume.
Before performing diagnosis, refer to "CAUTION" in "General Description". Refer to KEYLESS ACCESS WITH PUSH BUTTON START SYSTEM (DIAGNOSTICS)>GENERAL DESCRIPTION>CAUTION .

CHECK DTC.
1. Turn the ignition switch to ON.
2. Using the Subaru Select Monitor, perform the clear memory for «Engine». Refer to KEYLESS ACCESS WITH PUSH BUTTON START SYSTEM (DIAGNOSTICS)>CLEAR MEMORY .
3. Turn the ignition switch to OFF.
4. Remove and install the battery.
5. Turn the ignition switch to ON.
6. After 5 seconds or more, read the DTC of «Engine» using the Subaru Select Monitor. Refer to KEYLESS ACCESS WITH PUSH BUTTON START SYSTEM (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .
  Is DTC B1577 displayed? (Current malfunction)
  
  Yes: Replace the keyless access control module. Refer to SECURITY AND LOCKS>KEYLESS ACCESS control module .
  
  No: Even if DTC is displayed, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.
  
  NOTE: In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.