DTC B2253: Damaging A Coil Due To The Electric Current To The Speaker Coil

Trouble symptom: 

Sound is absent.

1. CHECK DTC. 
   1. Using the Subaru Select Monitor, perform the clear memory for «Infotainment». Ref. to INFOTAINMENT (DIAGNOSTICS)>Clear memory .
   2. Turn the ignition switch OFF → ON.
   3. Using the Subaru Select Monitor, read DTC of «Infotainment». Ref. to INFOTAINMENT (DIAGNOSTICS)>Diagnostic Trouble Code (DTC) .

      Is DTC B2253 displayed? (Current malfunction)

      Yes

      Go to  2 .

      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.
2. CHECK CONNECTOR. 

   Check the harness between audio connector or navigation unit connector and audio amplifier.

   Is the check result OK?

   Yes

   Replace the audio or navigation unit. Ref. to ENTERTAINMENT & MONITORING>AUDIO . Ref. to ENTERTAINMENT & MONITORING>NAVIGATION BODY .

   No

   Repair or replace the harness.