Subaru Legacy BN/BS (2015-2019) Service Manual: Dtc b1407 met communication

Subaru Legacy BN/BS (2015-2019) Service Manual / Immobilizer (diagnostics) / Diagnostic procedure with diagnostic trouble code (dtc) / Dtc b1407 met communication

DIAGNOSIS START CONDITION:

• Battery voltage is 10 V or more.

• The remote engine starter was not used to start the engine.

DTC DETECTING CONDITION:

Communication failure between body integrated unit and combination meter

TROUBLE SYMPTOM:

• Engine will not start.

• The security indicator illuminates.

CAUTION:

When the combination meter is replaced, registration of the immobilizer system is required. For details, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

STEP	CHECK	YES	NO
1.CHECK DTC. Read the DTC of the body integrated unit. Read Diagnostic Trouble Code (DTC)	Is DTC of the body integrated unit except for DTC B1407 displayed-	Perform the diagnosis according to the DTC.	Check the combination meter. Basic Diagnostic Procedure > PROCEDURE

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Other materials:

Inspection
1. VISUAL INSPECTIONCheck for the following, and replace the damaged parts with new parts.• Combination switch is cracked or deformed.• Roll connector is cracked or deformed.2. UNIT INSPECTION OF ROLL CONNECTORCAUTION:• Do not rotate the roll connector to more than the specified nu ...