B3920
Seat Motors Group 1 Common Circuit
B3920 is an OBD-II diagnostic trouble code meaning: Seat Motors Group 1 Common Circuit. Common causes: open or shorted wiring harness, faulty relay or fuse. Estimated repair cost: $56–167.
Symptoms
- Seat cannot be adjusted
- Intermittent operation of seat motors
- Control module protection tripped
Causes
- Open or shorted wiring harness
- Faulty relay or fuse
- Seat control module problem
- Contact corrosion
- Malfunction of one of the group motors
How to Fix
- Check motor circuit fuses and relays
- Inspect the wiring harness for damage
- Check the power and ground at the motor contacts
- Check the operation of each motor in the group separately
- If necessary, replace the faulty component
Related codes
Error B3920 by Vehicle Brand
FAQ
What does the B3920 code mean?
B3920 is an OBD-II diagnostic trouble code that indicates: Seat Motors Group 1 Common Circuit
What causes a B3920 error code?
The most common causes of B3920 include: Open or shorted wiring harness; Faulty relay or fuse; Seat control module problem; Contact corrosion.
How do I fix a B3920 diagnostic trouble code?
To fix B3920: Check motor circuit fuses and relays. Inspect the wiring harness for damage. Check the power and ground at the motor contacts. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B3920?
Limited driving only, diagnose soon
How much does it cost to fix B3920?
The estimated repair cost for B3920 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat