B166F Code: Meaning, Causes, and Symptoms | OBD2 Codes

B166F – Right Trailer Tow Lamp Control Circuit Low

 

B166F Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

B166F Possible Causes

 

Faulty Right Trailer Tow Lamp Bulb,Right Trailer Tow Lamp Bulb harness is open or shorted,Right Trailer Tow Lamp Bulb circuit poor electrical connection,Faulty Totally Integrated Power Module (TIPM)

 

B166F Description

 

The Totally Integrated Power Module (TIPM) monitors the Right Trailer Tow Lamp Control. The TIPM sets the OBDII code when the Right Trailer Tow Lamp Control is not to factory specifications.