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) > Front Differential AssemblyDISASSEMBLY1. DIFFERENTIAL CASE ASSEMBLY1. Remove the taper roller bearing using the ST.ST1 498077000REMOVERST2 899864100REMOVERST3 398497701SEAT2. Remove the hypoid driven gear mounting bolt using the ST.ST 18270K ...

Dtc b1633 curtain airbag sensor rh initialization error
AIRBAG SYSTEM (DIAGNOSTICS) > Diagnostic Chart with Trouble CodeDTC B1633 CURTAIN AIRBAG SENSOR RH INITIALIZATION ERRORDiagnosis start condition:Ignition voltage is 10 V to 16 V.DTC detecting condition:• Open or short circuit in harness of side sensor bus (RH)• Side airbag sensor (RH) ...

Inspection
MANUAL TRANSMISSION AND DIFFERENTIAL(5MT) > Transfer Driven GearINSPECTION1. Taper roller bearingReplace the bearings in the following cases.• In case of broken or rusty bearings• In case of worn or damaged bearings• When the bearings fail to turn smoothly or emit noise in rotat ...