B0053critical severityBody
Driver Seat Belt Pretensioner Circuit Short
on 2021 Jeep Cherokee 2.4L I4 · 4WD
What this code means
A short circuit detected in the driver seat belt pretensioner deployment circuit.
Symptoms
- Airbag/seatbelt warning light on
- SRS fault stored
- Risk of unintended pretensioner firing
Common causes
- Damaged wiring insulation
- Pinched wire at B-pillar
- Contaminated connector
- Pretensioner squib failure
Diagnostic steps
- Disconnect battery and wait 10 minutes
- Inspect pretensioner wiring for damage
- Check connector for moisture or contamination
- Measure circuit isolation
Repair notes
Repair damaged wiring or replace pretensioner assembly. Address immediately due to unintended deployment risk.
Other Body codes on this vehicle
B0001
Driver Frontal Stage 1 Deployment Control
B0001
Driver Frontal Stage 1 Deployment Control
B0002
Driver Frontal Stage 2 Deployment Control
B0002
Driver Frontal Stage 2 Deployment Control
B0003
Passenger Frontal Stage 1 Deployment Control
B0003
Passenger Frontal Stage 1 Deployment Control
B0004
Passenger Frontal Stage 2 Deployment Control
B0004
Passenger Frontal Stage 2 Deployment Control
B0005
Driver Knee Airbag Deployment Circuit
B0005
Driver Knee Airbag Deployment Circuit