Honda Civic manuals

Subaru Legacy BN/BS (2015-2019) Service Manual: Dtc b2a0c dcm internal fault

DIAGNOSIS START CONDITION:

When ignition switch is ON.

DTC DETECTING CONDITION:

Main microcomputer and communication circuit IC cannot communicate. (Defective IPC)

SIM (communication chip) cannot be read. (Defective SIM)

TROUBLE SYMPTOM:

Telematics function cannot be used.

RED LED illuminates.

CAUTION:

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

STEPCHECKYESNO

1.CHECK DTC.

Read the DTC. Diagnostic Code(s) Display

Is DTC B2A0C displayed- (Current malfunction)

Replace the DCM. Data Communication Module

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.

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Other materials:

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