Jeep Compass P0121 OBDII Diagnosis
P0121 is a relatively common trouble code with the Jeep Compass . It’s an OBDII code and has to do with the Throttle Pedal Position Sensor. It is relatively serious problem since it can leave your vehicle in failsafe mode. P0121: Throttle Pedal Position Sensor → Switch (TPS) A Circuit Range → Performance Problem OBDII … Read more