Subaru Crosstrek Service Manual: Dtc b2a02 tel2 antenna circuit

Diagnosis start condition:

When ignition switch is ON.

DTC detecting condition:

Any of the followings continues for 5 seconds or more.

• TEL2 impedance is more than 1 M?. (Detached antenna, etc.)

• TEL2 impedance is less than 1 k?. (Short-circuited antenna, etc.)

• Telematics function cannot be used.

• RED LED illuminates.

CommCheck is required after replacing the DCM. Telematics System > OPERATION">

1.CHECK DTC.

Read the DTC. Diagnostic Code(s) Display">

Is DTC B2A02 displayed? (Current malfunction)

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B2A02 TEL2 ANTENNA CIRCUIT">Go to Step 2.

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.

In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.

2.CHECK ANTENNA.

Visually check the telematics sub antenna. Antenna">

Is the telematics sub antenna OK?

Replace the DCM. Data Communication Module">

Replace the telematics sub antenna. Antenna">

Dtc u0452 invalid data received from restraints control module

Dtc u0100 lost communication with ecm/pcm a

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