Subaru Crosstrek 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)

• 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 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.

Dtc b2a0b green led circuit

Dtc b2a0d airbag signal

Other materials:

Disassembly
CONTINUOUSLY VARIABLE TRANSMISSION(TR580) > Extension CaseDISASSEMBLY1. Remove the dust cover from extension case.2. Remove the extension case oil seal from the extension case. Differential Side Retainer Oil Seal > REPLACEMENT">3. Remove all plugs. ...

Installation
LIGHTING SYSTEM > Auto Headlight Beam Leveler Control ModuleINSTALLATIONCAUTION:Before handling the airbag system components, refer to “CAUTION” of “General Description” in “AIRBAG SYSTEM”. General Description > CAUTION">Install each part in the rev ...

Installation
FUEL INJECTION (FUEL SYSTEMS)(H4DO) > Front Oxygen (A/F) SensorINSTALLATIONCAUTION:If lubricant is spilt over the exhaust pipe, wipe it off with cloth to avoid emission of smoke or causing a fire.1. Before installing front oxygen (A/F) sensor, apply anti-seize compound only to the threaded portio ...