DTC B2254: GPS Antenna Faults

Trouble symptom: 

Navigation system does not operate.

1. CHECK DTC  .
   1. Turn the ignition switch to ON.
   2. Using the Subaru Select Monitor, perform the clear memory of [Infotainment]. Ref. to COMMON (DIAG)>CLEAR MEMORY .
   3. Turn the ignition switch OFF → ON.
   4. Read the DTC of [Infotainment] using the Subaru Select Monitor. Ref. to INFOTAINMENT (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .

   Is DTC B2254 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 DATA MONITOR  .

   Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Infotainment]. Ref. to INFOTAINMENT (DIAGNOSTICS)>DATA MONITOR .

   • GPS Current Location; Latitude °
   • GPS Current Location; Longitude °

   Is the displayed data properly received?

   Yes:  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.

   No:  Go to  3.

3. CHECK ANTENNA  .

   Visually check the antenna and check the connectors. Ref. to ENTERTAINMENT & MONITORING>ANTENNA .

   Is the check result OK?

   Yes:  Replace the navigation unit. Ref. to ENTERTAINMENT & MONITORING>NAVIGATION BODY .

   No:  Replace the antenna. Ref. to ENTERTAINMENT & MONITORING>ANTENNA .