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Home >> VinFast >> 2023 >> VF9 Plus >> Repair and Diagnosis >> Body & Frame >> Towing Systems >> Trailer Module Diagnosis >> DTC B2185-12: Trailer Fog Lamp - Circuit Short To Battery >> VinFast DTC Guided Repair Instruction >> Failure Description

Failure Description

Vehicle Program VF8/VF9
ECU TRM
DTC Number B2185-12 
DTC Name Trailer Fog Lamp - Circuit Short To Battery
Failure Type Byte 12 - Circuit Short To Battery
Definition and Potential Cause This error occurs due to fault in wiring harness between TRM and Trailer Fog Lamp or fault in trailer fog lamp.
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