B1666
Low Severity (Level 1)Seat Driver Recline Motor Stalled
B1666 usually means seat Driver Recline Motor Stalled.
Can you still drive with B1666?
✅Safe to drive — this is an informational or minor issue. Schedule diagnosis at your convenience.
Typical repair cost: $100 – $800
Severity Level 1 — Low
This code indicates a minor issue that is unlikely to cause immediate driveability problems. You can typically continue driving but should have the vehicle inspected at your earliest convenience.
Common Symptoms
- Seat memory settings not saving or recalling correctly
- Power seat won't move in one or more directions
- Diagnostic trouble code (DTC) stored in module memory
- Fault may be intermittent — code may clear itself and reappear
- Reduced vehicle functionality related to the power seat system
Possible Causes
- Faulty seat motor/module — most common cause, test before replacing
- Damaged or corroded wiring/connector in the power seat system circuit
- Blown fuse or faulty relay for the power seat system
- Poor ground connection — check and clean all related ground points
- Control module fault — rare but possible, only consider after ruling out simpler causes
Common Fixes
- Scan vehicle with a professional-grade OBD2 scanner to read all stored codes and freeze frame data — note the conditions when the code set ($39-81 at shop, free at auto parts store for basic scan)
- Visually inspect the power seat system wiring harness and connectors — look for chafed wires, melted insulation, green corrosion, loose pins, or rodent damage (often free to check yourself, $110 diagnostic fee at shop)
- Replace seat motor/module if testing confirms it has failed — use OEM quality, avoid the cheapest no-name aftermarket parts that fail in a year ($100-800)
- Check and replace any blown fuses in the power seat system fuse circuit — if fuse blows again, there's still a short that needs to be found ($5-13 for fuses)
- Perform a wiggle test on the power seat system wiring harness while monitoring live data — see if the fault returns when you move the harness at different points ($0-123 diagnostic labor)
Estimated Repair Cost
These are estimated costs based on generic repair data. Actual costs may vary depending on your vehicle, location, and labor rates.
Frequently Asked Questions
What does B1666 mean?
B1666 stands for "Seat Driver Recline Motor Stalled". B1666 usually means seat Driver Recline Motor Stalled.
Can you drive with B1666?
Safe to drive — this is an informational or minor issue. Schedule diagnosis at your convenience.
How much does it cost to fix B1666?
Repair costs for B1666 typically range from $100 to $800, depending on your vehicle make, model, and local labor rates. Common fixes include: Scan vehicle with a professional-grade OBD2 scanner to read all stored codes and freeze frame data — note the conditions when the code set ($39-81 at shop, free at auto parts store for basic scan); Visually inspect the power seat system wiring harness and connectors — look for chafed wires, melted insulation, green corrosion, loose pins, or rodent damage (often free to check yourself, $110 diagnostic fee at shop); Replace seat motor/module if testing confirms it has failed — use OEM quality, avoid the cheapest no-name aftermarket parts that fail in a year ($100-800).
Will B1666 clear itself?
Explore Repair Costs
Related OBD-II Codes
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