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:

Installation
MANUAL TRANSMISSION AND DIFFERENTIAL(5MT) > Drive Pinion Shaft AssemblyINSTALLATION1. Remove the front differential assembly.2. Hypoid gear set match mark/No.: The number (A) on top of the drive pinion, and the number on the hypoid driven gear are set numbers for the two gears. Use a pair having ...

Inspection
AIRBAG SYSTEM > Roll ConnectorINSPECTION1. VISUAL INSPECTIONCheck for the following, and replace the damaged parts with new parts.• Combination switch is cracked or deformed.• Roll connector is cracked or deformed.2. UNIT INSPECTION OF ROLL CONNECTORCAUTION:• Do not rotate the r ...

Removal
EXHAUST(H4DO) > Rear Exhaust PipeREMOVALCAUTION:Vehicle components are extremely hot after driving. Be wary of receiving burns from heated parts.1. Turn the ignition switch to OFF.2. Lift up the vehicle.3. Remove the bolts, springs, and nuts securing the center exhaust pipe to the rear exhaust pi ...