B3921
Group 2 Seat Motors Circuit Shorted
Severity
⚠️ MediumCan you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)
Symptoms
- Group 2 seat adjustment does not work
- Burnt smell coming from under the seat
- Fuses blow
Causes
- Wiring harness damage
- Seat motor malfunction
- Short circuit in the control unit
- Contact corrosion
How to Fix
- Check wiring harness for damage
- Test seat motors
- Inspect the control unit for short circuits
- Replace damaged components
Related codes
Error B3921 by Vehicle Brand
AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye