Subaru Crosstrek Service Manual: Dtc b2a00 vin reading

Diagnosis start condition:

When ignition switch is ON.

DTC detecting condition:

When ignition switch is ON, VIN information (CAN) sent from ECM cannot be read.

Trouble symptom:

• 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 B2A00 displayed? (Current malfunction)

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B2A00 VIN READING">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 DTC.

Check DTCs in the following systems.

• Telematics Diagnostic Code(s) Display">

• Engine Read Diagnostic Trouble Code (DTC)">

Is DTC U**** displayed? (Current malfunction)

Perform the diagnosis for LAN system. Basic Diagnostic Procedure">

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B2A00 VIN READING">Go to Step 3.

3.CHECK CURRENT DATA.

Confirm VIN information from the engine OBD mode. General Scan Tool > OPERATION">

Is VIN information displayed?

Replace the DCM. Data Communication Module">

Replace the ECM. Engine Control Module (ECM)">

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