P1120 GMC Throttle Position Sensor 1 Circuit

Possible causes – Faulty Throttle Position Sensor– Throttle Position Sensor harness is open or shorted– Throttle Position Sensor circuit poor electrical connection– Throttle Position Sensor not properly adjusted When is the obd code mean? When the Powertrain Control Module (PCM) senses a signal voltage higher than the normal operating range of the sensor, the P1120…