B1990 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B1990 – Pedal Forward / Rearward Potentiometer Feedback Circuit Failure

 

B1990 Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

B1990 Possible Causes

 

Faulty Pedal Forward / Rearward Potentiometer,Pedal Forward / Rearward Potentiometer harness is open or shorted,Pedal Forward / Rearward Potentiometer circuit poor electrical connection,Faulty Body Control Module (BCM)

 

B1990 Description

 

The Body Control Module (BCM) monitors the Pedal Forward / Rearward Potentiometer. The BCM sets the OBDII code when the Pedal Forward / Rearward Potentiometer is not to factory specifications.