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
ENTERTAINMENT > Data Communication ModuleINSTALLATION1. DATA COMMUNICATION MODULECAUTION:• After installing the center grille assembly, check that the air vent grille of the center grille assembly is inserted correctly into the air vent duct.• Before handling the airbag system compone ...

Inspection
LIGHTING SYSTEM > Headlight SystemINSPECTION1. AUTO HEADLIGHT SYSTEM CHECKSTEPCHECKYESNO1.CHECK HEADLIGHT ILLUMINATION.Set the lighting switch to the switch 1 (TAIL/PARKING) and switch 2 (HEAD).Do the tail and headlight illuminate? Headlight System > INSPECTION">Go to Step 2.Check the ...

Inspection
TIRE PRESSURE MONITORING SYSTEM (DIAGNOSTICS) > Tire Pressure Warning Light / Trouble Indicator Light Illumination PatternINSPECTION(1)Ignition switch(8)Tire inflation pressure warning light (pressure condition)(15)Light OFF(2)OFF(9)Light OFF(16)Blink(3)ON(10)Light ON(17)1 second(4)Start(11)Syste ...