Subaru Crosstrek Service Manual: Airbag warning light remains on

Detecting condition:

• Airbag warning light is faulty.

• Airbag control module to combination meter circuit is shorted or open.

• Grounding circuit is faulty.

• Airbag control module is faulty.

• Connector connection is improper.

• Connections of (AB6, AB17, AB18) to airbag control module are improper.

Before performing diagnosis, refer to “CAUTION” in “General Description”. General Description > CAUTION">

1.CHECK CAN COMMUNICATION.

Inspect LAN system. Basic Diagnostic Procedure > PROCEDURE">

Is there any fault?

Repair it according to diagnosis of LAN system.

Airbag Warning Light Failure > AIRBAG WARNING LIGHT REMAINS ON">Go to Step 2.

2.CHECK DTC.

1) Turn the ignition switch to OFF, disconnect the battery ground cable, and wait for 60 seconds or more.

2) Check the connection status of airbag CM connector.

Is there poor contact of connector?

Reconnect the connector. Or repair the connector.

Airbag Warning Light Failure > AIRBAG WARNING LIGHT REMAINS ON">Go to Step 3.

3.CHECK FOR POOR CONTACT.

Check the combination meter. Basic Diagnostic Procedure > PROCEDURE">

Is there any fault?

Repair it according to INSTRUMENTATION/DRIVER INFO (DIAGNOSTICS).

Replace the airbag CM. Airbag Control Module > REMOVAL">

Airbag warning light remains off

Diagnostic chart with trouble code

Other materials:

Dtc b27a5 front internal antenna open
KEYLESS ACCESS WITH PUSH BUTTON START SYSTEM (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC B27A5 FRONT INTERNAL ANTENNA OPENDTC detecting condition:When open circuit occurs in the harness between keyless access CM and front interior antenna.Trouble symptom:Keyless acc ...

Removal
CONTINUOUSLY VARIABLE TRANSMISSION(TR580) > Control Valve BodyREMOVALCAUTION:• Directly after the vehicle has been running or the engine has been idling for a long time, the CVTF is hot. Be careful not to burn yourself.• Be careful not to spill CVTF on the exhaust pipe to prevent it f ...

Except U.S.-spec. models (type B)
The illustration above is a typical example. For some models, the combination meter may be slightly different than that shown in the illustration. Tachometer Multi information display Fuel gauge Select lever/gear position indicator Speedometer Trip meter A/B selection and trip m ...