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:

Dtc b1820 short in side airbag rh
AIRBAG SYSTEM (DIAGNOSTICS) > Diagnostic Chart with Trouble CodeDTC B1820 SHORT IN SIDE AIRBAG RHDiagnosis start condition:Ignition voltage is 10 V to 16 V.DTC detecting condition:• Side airbag harness (RH) circuit is shorted.• Side airbag module (RH) is faulty.• Airbag control ...

Caution
VEHICLE DYNAMICS CONTROL (VDC) (DIAGNOSTICS) > General DescriptionCAUTION1. SUPPLEMENTAL RESTRAINT SYSTEM “AIRBAG”Airbag system wiring harness is routed near the ABS wheel speed sensor and VDCCM&H/U.CAUTION:• Do not use electrical test equipment on wiring harness and connect ...

Installation
DIFFERENTIALS > Rear Differential (T-type)INSTALLATION1. Attach the rear differential member plate to the rear differential.(A)Rear differential member plate2. Set the rear differential to transmission jack.3. Set the ST to the rear differential.ST 28099PA090OIL SEAL PROTECTOR4. Insert the rea ...