B1938
Air Bag Passenger Circuit Short To Ground Fault
B1938 is an OBD-II diagnostic trouble code meaning: Air Bag Passenger Circuit Short To Ground Fault. Common causes: damage to the airbag wiring harness, airbag squib short circuit. Estimated repair cost: $56–167.
Symptoms
- Restraint warning light is on
- Front passenger airbag disabled
- Error message on the on-board computer display
Causes
- Damage to the airbag wiring harness
- Airbag squib short circuit
- Corrosion or oxidation of contacts
- Airbag module malfunction
- Mechanical damage to wiring
How to Fix
- Diagnose the passive safety system using a scanner
- Check the continuity and resistance of the airbag circuit
- Inspect the wiring harness for damage
- Check contacts and connectors for oxidation
- Replace damaged components if necessary
- Clear the memory of the control unit and check the operation of the system
Related codes
FAQ
What does the B1938 code mean?
B1938 is an OBD-II diagnostic trouble code that indicates: Air Bag Passenger Circuit Short To Ground Fault
What causes a B1938 error code?
The most common causes of B1938 include: Damage to the airbag wiring harness; Airbag squib short circuit; Corrosion or oxidation of contacts; Airbag module malfunction.
How do I fix a B1938 diagnostic trouble code?
To fix B1938: Diagnose the passive safety system using a scanner. Check the continuity and resistance of the airbag circuit. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B1938?
Do not drive — repair immediately
How much does it cost to fix B1938?
The estimated repair cost for B1938 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat