The P2137 code is a diagnostic trouble code (DTC) that indicates a voltage correlation issue between the throttle position sensor and the pedal position sensor. This code is crucial as it affects the engine’s performance and driver control.
What Does the P2137 Code Mean?
The P2137 code signifies that the Engine Control Module (ECM) has detected a discrepancy in the voltage signals from the throttle position sensor (TPS) and the accelerator pedal position sensor (APP). These components work together to inform the ECM about the desired engine performance based on driver input.
What Causes the P2137 Code?
- Accelerator Pedal Position (APP) assembly failure
- Throttle Position Sensor (TPS) failure
- Powertrain Control Module (PCM) failure
- Wiring or connection issues between the sensors and the PCM
What Are the Symptoms of the P2137 Code?
- Decreased engine performance
- Engine may enter limp home mode, limiting speed to 20 mph or less
- Illumination of the Check Engine Light (CEL)
How Serious Is the P2137 Code?
The P2137 code is considered urgent as it can lead to significant engine performance issues and potential safety hazards. If left unaddressed, it may cause severe damage to the vehicle or pose risks to the driver and passengers.
How to Diagnose the P2137 Code
- Use an OBD-II scanner to confirm the P2137 code and check for any additional codes.
- Inspect the wiring and connectors associated with the TPS and APP for damage or corrosion.
- Test the voltage output from both sensors to ensure they are within specifications.
- Check the PCM for any faults or issues that may be affecting sensor readings.
Common Repairs for the P2137 Code
- Replacing the Accelerator Pedal Position (APP) assembly
- Replacing the Throttle Position Sensor (TPS)
- Repairing or replacing damaged wiring or connectors
- Reprogramming or replacing the Powertrain Control Module (PCM)
How Much Does It Cost to Fix the P2137 Code?
The cost to repair the P2137 code can vary significantly based on the underlying issue, labor rates, and parts required. On average, you can expect to pay between $100 and $600 for repairs, including parts and labor.
Can I Fix the P2137 Code Myself?
If you have a good understanding of automotive systems and are comfortable working with electrical components, you may be able to diagnose and repair the P2137 code yourself. However, if you are unsure or lack experience, it is advisable to seek professional assistance to avoid further complications.
