Cadillac P1121: TP Sensor Circuit High Input (Intermittent)
Is your scanner showing Cadillac P1121?
No worries. We'll show you what it means and how to deal with it.
Cadillac P1121: TP Sensor Circuit High Input (Intermittent)
OVERVIEWWhat Does The Cadillac P1121 Code Mean?
Key on or engine running; and the PCM detected an intermittent high voltage condition on the TP sensor signal circuit (more than 4.80v) for 1 second. The TP sensor signal is used by the PCM to determine the throttle plate angle to manage the engine control
What Are The Potential Causes Of The Cadillac P1121 Code?
- TP sensor signal circuit is shorted to VREF (intermittent fault)
- TP sensor ground circuit is open (an intermittent fault)
- TP sensor is damaged or has failed (possible intermittent open)
- PCM has failed
Recommended Parts
Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:
>>> Twippo 372Pcs Waterproof Wire Connectors Kit
>>> ACDelco Professional 213-4668 Throttle Position Sensor
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
