Left Trailer Tow Lamp Control Circuit Low
Table of contents
B166B RAM Possible Causes
- Faulty Left Trailer Tow Lamp Bulb
- Left Trailer Tow Lamp Bulb harness is open or shorted
- Left Trailer Tow Lamp Bulb circuit poor electrical connection
- Faulty Totally Integrated Power Module (TIPM)
How do I fix code B166B RAM?
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 B166B RAM code
The cost of diagnosing the B166B RAM 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)
B166B RAM Description
The Totally Integrated Power Module (TIPM) monitors the Left Trailer Tow Lamp Control. The TIPM sets the OBDII code when the Left Trailer Tow Lamp Control is not to factory specifications.