B3666
Rear Tonneau Position Error
B3666 is an OBD-II diagnostic trouble code meaning: Rear Tonneau Position Error. Common causes: trunk lid position sensor malfunction, wiring harness damage. Estimated repair cost: $56–167.
Symptoms
- Incorrect operation of the automatic trunk lid
- Error message on the instrument panel
- The trunk lid does not open/close automatically
Causes
- Trunk lid position sensor malfunction
- Wiring harness damage
- Mechanical failure of the lid drive
- Problems with the control unit
How to Fix
- Check the trunk lid position sensor
- Inspect the wiring harness for damage
- Check the cover drive mechanism
- Scan the control unit for other errors
Related codes
Error B3666 by Vehicle Brand
FAQ
What does the B3666 code mean?
B3666 is an OBD-II diagnostic trouble code that indicates: Rear Tonneau Position Error
What causes a B3666 error code?
The most common causes of B3666 include: Trunk lid position sensor malfunction; Wiring harness damage; Mechanical failure of the lid drive; Problems with the control unit.
How do I fix a B3666 diagnostic trouble code?
To fix B3666: Check the trunk lid position sensor. Inspect the wiring harness for damage. Check the cover drive mechanism. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B3666?
Limited driving only, diagnose soon
How much does it cost to fix B3666?
The estimated repair cost for B3666 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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