P1220 Cadillac Code - Throttle Position Sensor 2 Circuit
Quick Answer
The P1220 Cadillac diagnostic trouble code (DTC) refers to an issue with the Throttle Position Sensor 2 Circuit. Common causes include Faulty throttle position sensor, Damaged wiring or connectors in the sensor circuit, ECM malfunction. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1220 Cadillac indicates Throttle Position Sensor 2 Circuit.
- Common causes
- Common causes include Faulty throttle position sensor, Damaged wiring or connectors in the sensor circuit, ECM malfunction.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P1220 Cadillac Description
The P1220 Cadillac diagnostic trouble code (DTC) refers to an issue with the Throttle Position Sensor 2 Circuit. The throttle position sensor (TPS) is a crucial component of the vehicle's electronic fuel injection system, responsible for monitoring the position of the throttle valve and sending this information to the engine control module (ECM). The ECM uses this data to adjust the air-fuel mixture and ignition timing for optimal engine performance.
Common Causes of P1220 Cadillac
- Faulty throttle position sensor
- Damaged wiring or connectors in the sensor circuit
- ECM malfunction
- Corrosion or contamination in the sensor circuit
- Loose connections or poor electrical grounding
Symptoms of P1220 Cadillac
- Rough idling
- Hesitation or stalling when accelerating
- Poor fuel efficiency
- Lack of power or response from the engine
- Vehicle going into limp mode
How to Fix P1220 Cadillac
- Use a diagnostic scan tool to retrieve the specific trouble code and confirm the issue with the Throttle Position Sensor 2 Circuit.
- Inspect the throttle position sensor, wiring, and connectors for any visible damage or signs of wear.
- Test the throttle position sensor's output voltage to ensure it is within the manufacturer's specified range.
- Replace the throttle position sensor if it is found to be faulty, making sure to follow the manufacturer's guidelines for installation.
- Clear the trouble code from the ECM's memory and perform a test drive to verify that the issue has been resolved.
Cost to Fix P1220 Cadillac
The typical repair costs for addressing a P1220 Cadillac code can vary depending on the specific vehicle make and model, the extent of the issue, and the labor rates at the auto repair shop. On average, the parts cost for a new throttle position sensor can range from $50 to $200, while the labor cost for diagnosis and replacement can range from $100 to $300. Overall, the total repair cost for resolving a Throttle Position Sensor 2 Circuit issue may fall between $150 and $500. It's recommended to consult with a qualified mechanic or repair shop to obtain a more accurate estimate based on your vehicle's unique circumstances.
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