DTC B2A02: LTE2 Antenna Circuit

Diagnosis start condition:

When ignition switch is ON.

DTC detecting condition:

Any of the followings continues for 5 seconds or more.

LTE2 impedance is more than 1 MΩ (Detached antenna, etc.)
LTE2 impedance is less than 1 kΩ. (Short-circuited antenna, etc.)

Trouble symptom:

Telematics function cannot be used.
RED LED illuminates.

CAUTION:

After the Data Communication Module is replaced, registrations of COMM Check and immobilizer system are required. Ref. to ENTERTAINMENT & MONITORING>TELEMATICS SYSTEM>OPERATION>REGISTRATION (COMM CHECK) .
Before performing diagnosis, refer to "CAUTION" in "General Description". Ref. to TELEMATICS SYSTEM (DIAGNOSTICS)>GENERAL DESCRIPTION>CAUTION .

CHECK DTC .
Read the DTC of [Telematics] using the Subaru Select Monitor. Ref. to TELEMATICS SYSTEM (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .

Is DTC B2A02 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.
CHECK ANTENNA .
Visually check the telematics sub antenna. Ref. to ENTERTAINMENT & MONITORING>ANTENNA .

Is the check result OK?

Yes : Replace the Data Communication Module. Ref. to ENTERTAINMENT & MONITORING>DATA COMMUNICATION MODULE .

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