P0220 GMC Code - Throttle Position Sensor 2 Circuit
Quick Answer
The Throttle Position (TP) sensor 2 is a potentiometer type sensor with 3 circuits: A 5-volt reference circuit, a low reference circuit, and a signal circuit. Common causes include Faulty Throttle Position Sensor (TPS), Throttle Position Sensor (TPS) harness is open or shorted, Throttle Position Sensor circuit poor electrical connection. 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
- P0220 GMC indicates Throttle Position Sensor 2 Circuit.
- Common causes
- Common causes include Faulty Throttle Position Sensor (TPS), Throttle Position Sensor (TPS) harness is open or shorted, Throttle Position Sensor circuit poor electrical connection.
- 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.
Code P0220 GMC Description
The TP sensor is used to determine the throttle plate angle for various engine management systems. The Throttle Actuator Control (TAC) module provides the TP sensor with a 5-volt reference circuit and a low reference circuit. The TP sensor 1 signal voltage is low at closed throttle and increases as the throttle opens. When the PCM detects that the TP sensor 2 signal or TP sensor 5-volt reference voltage is outside the predetermined range, this Diagnostic Trouble Code (DTC) sets.
What are the Possible Causes of the DTC P0220 GMC?
- Faulty Throttle Position Sensor (TPS)
- Throttle Position Sensor (TPS) harness is open or shorted
- Throttle Position Sensor circuit poor electrical connection
- Fault Electric Throttle Control Actuator (or Throttle Body Motor)
- Accelerator Pedal Position Sensor (APP)
- Faulty Throttle Actuator Control (TAC) module
How to Fix the DTC P0220 GMC?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0220 GMC code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P0220 GMC Code
1. What are the common symptoms of OBDII code P0220 (Throttle Position Sensor 2 Circuit)?
Symptoms may include issues with acceleration, poor engine performance, stalling, rough idling, and potential problems with the vehicle's transmission shifting.
2. What are the typical causes of OBDII code P0220 (Throttle Position Sensor 2 Circuit)?
Common causes include a faulty throttle position sensor, damaged wiring or connectors in the TPS circuit, issues with the vehicle's ECM, or a malfunction in the throttle body.
3. How can I diagnose the OBDII code P0220 (Throttle Position Sensor 2 Circuit)?
Diagnosis involves using a scan tool to read the code, testing the throttle position sensor's voltage output, inspecting the wiring and connectors for damage, and checking for any other related issues in the circuit.
4. Can I drive my vehicle with OBDII code P0220 (Throttle Position Sensor 2 Circuit) active?
It is not recommended to drive the vehicle with this code active as it can affect the vehicle's performance and potentially cause further damage. It's best to address the issue promptly.
5. How can I repair OBDII code P0220 (Throttle Position Sensor 2 Circuit)?
Repair options may include replacing the throttle position sensor, repairing or replacing damaged wiring or connectors, resetting the ECM, or cleaning the throttle body if needed.
6. Are there any DIY tips for fixing OBDII code P0220 (Throttle Position Sensor 2 Circuit)?
While some may attempt DIY repairs, it's advisable to have a professional diagnose and repair this issue due to the intricacies involved in handling the throttle position sensor and related components.
7. Will resetting the OBDII code P0220 (Throttle Position Sensor 2 Circuit) make it go away permanently?
Simply clearing the code without addressing the underlying issue will likely result in the code reappearing. It's crucial to diagnose and fix the root cause to prevent recurrence.
8. Can a dirty throttle body cause OBDII code P0220 (Throttle Position Sensor 2 Circuit)?
A dirty or malfunctioning throttle body can impact the throttle position sensor's readings and cause this code to trigger. Cleaning or repairing the throttle body may help resolve the issue.
9. Is OBDII code P0220 (Throttle Position Sensor 2 Circuit) a serious problem?
While the severity can vary, it's essential to address this code promptly to prevent potential drivability issues and further damage to the vehicle's systems.
10. How much does it typically cost to repair OBDII code P0220 (Throttle Position Sensor 2 Circuit)?
The cost of repair can vary depending on the root cause of the issue, the parts needed, and the labor involved. It's recommended to obtain estimates from reputable mechanics or repair shops for an accurate cost assessment.
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