P2138 2006 Ford Fusion Code - Throttle/Pedal Position Sensor/Switch 'D'/'E' Voltage Correlation
Quick Answer
The P2138 diagnostic trouble code (DTC) for a 2006 Ford Fusion indicates a Throttle/Pedal Position Sensor/Switch 'D'/'E' Voltage Correlation issue. Common causes include Faulty throttle position sensor, Damaged wiring or connectors in the throttle control circuit, Malfunctioning electronic throttle control unit. 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
- P2138 2006 Ford Fusion indicates Throttle/Pedal Position Sensor/Switch 'D'/'E' Voltage Correlation.
- Common causes
- Common causes include Faulty throttle position sensor, Damaged wiring or connectors in the throttle control circuit, Malfunctioning electronic throttle control unit.
- 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 P2138 2006 Ford Fusion Description
The P2138 diagnostic trouble code (DTC) for a 2006 Ford Fusion indicates a Throttle/Pedal Position Sensor/Switch 'D'/'E' Voltage Correlation issue. This code is specifically related to a discrepancy between the voltage signals from the throttle position sensor (TPS) and the pedal position sensor (PPS) in the vehicle's electronic throttle control system. The TPS is responsible for monitoring the position of the throttle valve, while the PPS detects the position of the accelerator pedal. When these sensors do not correlate, it can lead to various performance issues in the vehicle.
Common Causes of P2138 2006 Ford Fusion
- Faulty throttle position sensor
- Damaged wiring or connectors in the throttle control circuit
- Malfunctioning electronic throttle control unit
- Issues with the engine control module
- Corrosion or contamination affecting sensor signals
Symptoms of P2138 2006 Ford Fusion
- Reduced engine power
- Rough idling or stalling
- Delayed response to accelerator input
- Illumination of the Check Engine Light
- Difficulty maintaining a consistent speed
How to Fix P2138 2006 Ford Fusion
- Begin by conducting a thorough inspection of the throttle position sensor and pedal position sensor to check for any visible damage or corrosion.
- Use a multimeter to test the voltage output of both sensors and compare the readings to identify any discrepancies.
- Inspect the wiring harness and connectors for any signs of wear, damage, or loose connections. Repair or replace as necessary.
- If the sensors and wiring check out, consider testing the electronic throttle control unit and the engine control module for proper functionality.
- Clear the DTC from the ECM memory using a diagnostic scan tool after completing the repair process.
Cost to Fix P2138 2006 Ford Fusion
The typical repair costs for addressing a P2138 code in a 2006 Ford Fusion can vary depending on the specific cause of the issue. Parts such as a new throttle position sensor or pedal position sensor can range from $50 to $200 each, while labor costs may amount to $100 to $300, depending on the shop's hourly rates and the complexity of the repair. Overall, the total repair cost could range from $200 to $700, including parts and labor. It is advisable to consult with a trusted mechanic or dealership to obtain an accurate estimate based on the specific circumstances of the vehicle. Keep in mind that diagnostic time and labor rates can fluctuate based on location and other factors.
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Frequently Asked Questions about P2138 2006 Ford Fusion Code
1. What does the OBDII code P2138 mean on a 2006 Ford Fusion?
P2138 indicates a voltage correlation issue between the throttle or pedal position sensors 'D' and 'E,' meaning the ECM is detecting inconsistent signals from the sensors.
2. What are the common symptoms of P2138 in a 2006 Ford Fusion?
Symptoms include reduced engine power, the throttle not responding properly, the check engine light illuminating, and the vehicle potentially entering "limp mode."
3. What causes the P2138 code in a 2006 Ford Fusion?
Common causes include a faulty accelerator pedal position sensor, damaged or corroded wiring, loose electrical connections, or a failing throttle body.
4. Can a dirty throttle body cause the P2138 code?
While uncommon, a dirty or malfunctioning throttle body can contribute to the issue if it affects the sensor readings.
5. How do you fix the P2138 code on a 2006 Ford Fusion?
Repairs may involve replacing the accelerator pedal position sensor, repairing damaged wiring or connectors, or replacing the throttle body if it’s faulty.
6. Is it safe to drive with a P2138 code on a 2006 Ford Fusion?
It’s not recommended, as the code can cause unpredictable throttle response and reduced power, which may lead to dangerous driving situations.
7. How do you diagnose the P2138 code in a 2006 Ford Fusion?
Diagnosis typically involves scanning for codes, inspecting the wiring and connectors for damage, testing the accelerator pedal sensor, and checking the throttle body for proper operation.
8. What tools are needed to diagnose the P2138 code on a 2006 Ford Fusion?
You’ll need an OBDII scanner, a multimeter to test voltage and continuity, and possibly a throttle body cleaner for maintenance.
9. Will clearing the P2138 code fix the issue on a 2006 Ford Fusion?
Clearing the code may temporarily erase the check engine light, but the underlying issue must be resolved to prevent the code from returning.
10. How much does it cost to fix the P2138 code on a 2006 Ford Fusion?
Repair costs vary but may include $50–$150 for a new pedal position sensor or $300–$600 for a throttle body replacement, plus labor if done by a mechanic.
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