B1766
Seat Driver Forward Circuit Open
B1766 is an OBD-II diagnostic trouble code meaning: Seat Driver Forward Circuit Open. Common causes: open/short circuit in wiring harness under seat, malfunction of the longitudinal control motor. Estimated repair cost: $33–167.
Symptoms
- Driver's seat does not move forward/backward
- Seat adjustment buttons not working
- The airbag malfunction indicator comes on (on some models)
Causes
- Open/short circuit in wiring harness under seat
- Malfunction of the longitudinal control motor
- Poor contact in the seat control unit connectors
- Short to ground or power
- Seat control unit malfunction
How to Fix
- Check fuses associated with the seat adjustment system
- Inspect the wiring harness under the seat for damage.
- Check the connectors of the control unit and adjustment motor
- Check circuit resistance using a multimeter
- Check the operation of the adjustment motor
- Replace damaged components if necessary
Related codes
FAQ
What does the B1766 code mean?
B1766 is an OBD-II diagnostic trouble code that indicates: Seat Driver Forward Circuit Open
What causes a B1766 error code?
The most common causes of B1766 include: Open/short circuit in wiring harness under seat; Malfunction of the longitudinal control motor; Poor contact in the seat control unit connectors; Short to ground or power.
How do I fix a B1766 diagnostic trouble code?
To fix B1766: Check fuses associated with the seat adjustment system. Inspect the wiring harness under the seat for damage.. Check the connectors of the control unit and adjustment motor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B1766?
Yes, but get it checked soon
How much does it cost to fix B1766?
The estimated repair cost for B1766 is $33–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat