DTC B2277: Submerging Circuit

DTC detecting condition

When the water-submersion detection circuit integrated into the keyless access CONTROL MODULE detects the water submersion.

Trouble symptom

The ignition can be turned ON, but cannot be turned OFF.
Engine will not start.

CAUTION: For replacement procedure of keyless access CONTROL MODULE, refer to the "REGISTRATION MANUAL FOR IMMOBILIZER" provided as a separate volume. Contact an Authorized Subaru Dealership.

CHECK LAN SYSTEM .
Inspect LAN system. Ref. to LAN SYSTEM (DIAGNOSTICS)>Basic Diagnostic Procedure>PROCEDURE .

Is the check result OK

Yes: Go to 2.

No: Perform the inspection according to the diagnosis for LAN system.
CHECK SUBMERSION CONDITION .
Check the keyless access CONTROL MODULE and environment of equipment, and check the harness for any trace of water submersion.

Is there any trace of water submersion?

Take necessary measures against water submersion and replace the keyless access CONTROL MODULE. Ref. to SECURITY AND LOCKS>Keyless Access CONTROL MODULE .

Replace the keyless access CONTROL MODULE. Ref. to SECURITY AND LOCKS>Keyless Access CONTROL MODULE .