Subaru Legacy BN/BS (2015-2019) Service Manual: Dtc b1778 belt tension sensor control module

Subaru Legacy BN/BS (2015-2019) Service Manual / Occupant detection system (diagnostics) / Diagnostic procedure with diagnostic trouble code (dtc) / Dtc b1778 belt tension sensor control module

DTC DETECTING CONDITION:

• Passenger’s seat belt tension sensor is faulty.

• Airbag main harness circuit is open or shorted.

• Occupant detection control module is faulty.

For the diagnostic procedure, refer to DTC B1773. Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B1773 BELT TENSION SENSOR CIRCUIT OPEN

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DTC DETECTING CONDITION:• Passenger’s buckle switch circuit is open, shorted or shorted to ground.• Seat harness circuit is open, shorted or shorted to ground.• Occupant detect ...

Dtc b1777 belt tension sensor input voltage low

DTC DETECTING CONDITION:• Passenger’s seat belt tension sensor is faulty.• Airbag main harness circuit is open or shorted.• Occupant detection control module is faulty.For the ...

Other materials:

Inspection
STEPCHECKYESNO1.CHECK IGNITION SWITCH ILLUMINATION.1) Turn the ignition switch to ON.2) Check the lighting condition of the ignition switch illumination.Does the ignition switch illumination blink-Check the function setting of body integrated unit. General Diagnostic Table Ignition Switch Illuminat ...