Rear Tonneau Position Error
Table of contents
B3666 CHEVROLET Possible Causes
- Faulty Folding Top Cover Latch Actuator
- Faulty Folding Top Cover Open Limit Switch
- Faulty Folding Top Control (FTC) Module
- Faulty Body Control Module (BCM)
How do I fix code B3666 CHEVROLET?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the B3666 CHEVROLET code
The cost of diagnosing the B3666 CHEVROLET code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
B3666 CHEVROLET Description
The Folding Top Control (FTC) Module supplies accessory voltage to the folding top cover open limit switch. It monitors the signal circuit of this switch to determine the open and closed position of the folding top cover. At the same time the Body Control Module (BCM) supplies battery voltage to the folding top cover latch ajar switch and monitors this circuit to determine if the folding top cover is latched or unlatched. The BCM communicates the status of the folding top cover latch ajar switch via class 2 message to the FTC module. Diagnostic Trouble Code (DTC) B3666 will set as a current DTC, if the FTC module senses that the folding top cover latch is not ajar while the folding top cover open limit switch is active.