Subaru Legacy BN/BS (2015-2019) Service Manual: Dtc b177b buckle switch circuit high

Subaru Legacy BN/BS (2015-2019) Service Manual / Occupant detection system (diagnostics) / Diagnostic procedure with diagnostic trouble code (dtc) / Dtc b177b buckle switch circuit high

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 detection control module is faulty.

For the diagnostic procedure, refer to DTC B177E. Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B177E BUCKLE SWITCH RANGE

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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 ...

Other materials:

Inspection
1. CHECK FUSE1. Remove the fuse and inspect visually.2. If the fuse is blown out, replace the fuse.NOTE:If the fuse is blown again, check the system wiring harness.2. CHECK RELAY1. Measure the resistance between relay terminals.Terminal No.Inspection conditionsStandardCircuit1 — 2Always1 M- or mor ...