B1979
Passenger Seat Rearward Switch Circuit Short To Battery
B1979 is an OBD-II diagnostic trouble code meaning: Passenger Seat Rearward Switch Circuit Short To Battery. Common causes: wiring harness damage, rear position switch malfunction. Estimated repair cost: $56–167.
Symptoms
- Seat adjustment does not work correctly
- Seat won't move back
- Comfort system fault indicator is on
- Triggering the system's emergency mode
Causes
- Wiring harness damage
- Rear position switch malfunction
- Short circuit in the circuit
- Problems with the seat control unit
- Contact corrosion
How to Fix
- Conduct a visual inspection of the wiring harness and contacts
- Check the resistance and continuity of the switch circuit
- Test the operation of the rear position switch
- Check power and ground circuit
- If necessary, replace the switch or repair the wiring harness
- Reset the error and check the system operation
Related codes
FAQ
What does the B1979 code mean?
B1979 is an OBD-II diagnostic trouble code that indicates: Passenger Seat Rearward Switch Circuit Short To Battery
What causes a B1979 error code?
The most common causes of B1979 include: Wiring harness damage; Rear position switch malfunction; Short circuit in the circuit; Problems with the seat control unit.
How do I fix a B1979 diagnostic trouble code?
To fix B1979: Conduct a visual inspection of the wiring harness and contacts. Check the resistance and continuity of the switch circuit. Test the operation of the rear position switch. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B1979?
Limited driving only, diagnose soon
How much does it cost to fix B1979?
The estimated repair cost for B1979 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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