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:

Removal
FUEL INJECTION (FUEL SYSTEMS)(H4DO) > Engine Wiring HarnessREMOVAL1. Release the fuel pressure. Fuel > PROCEDURE">2. Disconnect the ground cable from battery.3. Remove the intake manifold. Intake Manifold > REMOVAL">4. Disconnect the connector from the engine.• Struc ...

Display settings
Touch the tab to set display. Item Function Day/Night Mode The "Auto", "Day" or "Night" key can be selected on the pop-up screen. When the "Auto" key is selected, the screen changes to day or night mode depending on the position of the headlight swi ...

User recognition function
WARNING Always complete registration, retrieval, or deletion of seat position and outside mirror angle settings before starting to drive the Subaru Ascent. Attempting to adjust or manage these personalized settings while the vehicle is in motion can distract the driver and significantly incre ...