Subaru Crosstrek Service Manual: Dtc b2277 submerging circuit

DTC detecting condition:

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

Trouble symptom:

• The ignition can be turned ON, but cannot be turned OFF.

• Engine will not start.

For replacement procedure of keyless access CM, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

1.CHECK LAN SYSTEM.

Inspect LAN system. Basic Diagnostic Procedure > PROCEDURE">

Is LAN system normal?

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B2277 SUBMERGING CIRCUIT">Go to Step 2.

Perform the inspection according to the diagnosis for LAN system.

2.CHECK SUBMERSION CONDITION.

Check the keyless access CM 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 CM. Keyless Access CM">

Replace the keyless access CM. Keyless Access CM">

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