P2138 2017 Toyota RAV4 Code - Throttle Pedal Position Sensor/Switch 'D'/'E' Voltage Correlation
Quick Answer
The P2138 diagnostic trouble code (DTC) for a 2017 Toyota RAV4 indicates a Throttle Pedal Position Sensor/Switch 'D'/'E' Voltage Correlation issue. Common causes include Faulty throttle pedal position sensor, Malfunctioning throttle position sensor, Wiring or connector issues. 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 2017 Toyota RAV4 indicates Throttle Pedal Position Sensor/Switch 'D'/'E' Voltage Correlation.
- Common causes
- Common causes include Faulty throttle pedal position sensor, Malfunctioning throttle position sensor, Wiring or connector issues.
- 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 2017 Toyota RAV4 Description
The P2138 diagnostic trouble code (DTC) for a 2017 Toyota RAV4 indicates a Throttle Pedal Position Sensor/Switch 'D'/'E' Voltage Correlation issue. This code is triggered when the Engine Control Module (ECM) detects that the voltage signals from the throttle pedal position sensor and throttle position sensor do not correlate, suggesting a potential problem with the throttle system.
Common Causes of P2138 2017 Toyota RAV4
- Faulty throttle pedal position sensor
- Malfunctioning throttle position sensor
- Wiring or connector issues
- Dirty throttle body
- ECM malfunction
Symptoms of P2138 2017 Toyota RAV4
- Loss of power or acceleration
- Rough idling or stalling
- Unresponsive throttle pedal
- Check Engine Light illuminated
- Reduced fuel efficiency
How to Fix P2138 2017 Toyota RAV4
- Begin by conducting a thorough inspection of the throttle pedal position sensor, throttle position sensor, wiring, and connectors for any visible damage or corrosion.
- Test the sensors using a multimeter to check for proper voltage signals and resistance values according to manufacturer specifications.
- Clean the throttle body to ensure smooth operation of the throttle plate.
- If necessary, replace the faulty sensors or repair any damaged wiring or connectors.
- Clear the DTC codes from the ECM and perform a test drive to verify that the issue has been resolved.
Cost to Fix P2138 2017 Toyota RAV4
The cost of repairing a P2138 code on a 2017 Toyota RAV4 can vary depending on the extent of the issue and the specific parts that need to be replaced. On average, the repair cost for this type of problem can range from $200 to $500, including parts and labor. It is important to note that diagnostic time and labor rates at auto repair shops can vary, so it is recommended to obtain a detailed estimate from a qualified mechanic before proceeding with the repair.
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Frequently Asked Questions about P2138 2017 Toyota RAV4 Code
1. What does OBDII code P2138 mean on a 2017 Toyota RAV4?
P2138 indicates a voltage correlation issue between the two throttle pedal position sensors (Sensor 'D' and Sensor 'E') in the accelerator pedal assembly.
2. What are the common symptoms of code P2138 in a 2017 Toyota RAV4?
Symptoms include reduced engine performance, the vehicle going into "limp mode," hesitation or lack of throttle response, and the check engine light being illuminated.
3. What causes the P2138 code to appear on a 2017 Toyota RAV4?
Common causes include a faulty accelerator pedal position sensor, damaged wiring or connectors, or corrosion in the sensor's circuit.
4. Can I drive my 2017 Toyota RAV4 with a P2138 code?
It is not recommended to drive with this code as it may lead to unsafe driving conditions like sudden loss of acceleration.
5. How is the P2138 code diagnosed in a 2017 Toyota RAV4?
A technician will use a scan tool to monitor the voltage signals from the throttle pedal sensors, inspect wiring and connectors, and perform resistance tests on the circuit.
6. Can cleaning the throttle pedal assembly fix the P2138 code?
In some cases, cleaning the throttle pedal assembly and ensuring the connectors are free of debris or corrosion can resolve the issue.
7. How much does it cost to fix a P2138 code on a 2017 Toyota RAV4?
Repair costs can vary but typically range from $100 to $300, depending on whether the sensor or wiring needs replacement.
8. Is the P2138 code covered under warranty for a 2017 Toyota RAV4?
It may be covered if your vehicle is still under the manufacturer's powertrain or emissions warranty. Check with your dealership for details.
9. What tools are needed to fix a P2138 code on a 2017 Toyota RAV4?
Basic tools include a multimeter for testing voltage, a scan tool for diagnostics, and possibly a replacement accelerator pedal assembly or wiring repair kit.
10. Can a dead battery cause the P2138 code to appear?
While uncommon, a weak or dead battery could cause electrical anomalies, which might trigger this code. Ensure the battery is in good condition.
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