P2135 Mercury Code - Throttle/Pedal Position Sensor/Switch 'A'/'B' Voltage Correlation
Quick Answer
The P2135 diagnostic trouble code (DTC) for Mercury vehicles indicates a throttle/pedal position sensor/switch 'A'/'B' voltage correlation issue. Common causes include Faulty throttle position sensor (TPS), Malfunctioning accelerator pedal position sensor (APPS), Wiring issues or poor electrical connections. 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
- P2135 Mercury indicates Throttle/Pedal Position Sensor/Switch 'A'/'B' Voltage Correlation.
- Common causes
- Common causes include Faulty throttle position sensor (TPS), Malfunctioning accelerator pedal position sensor (APPS), Wiring issues or poor electrical connections.
- 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 P2135 Mercury Description
The P2135 diagnostic trouble code (DTC) for Mercury vehicles indicates a throttle/pedal position sensor/switch 'A'/'B' voltage correlation issue. This code is specifically related to the correlation between the signals sent by the throttle position sensor (TPS) and the accelerator pedal position sensor (APPS). These sensors play a crucial role in the operation of the electronic throttle control system, which regulates the amount of air entering the engine and controls the engine speed accordingly.
Common Causes of P2135 Mercury
- Faulty throttle position sensor (TPS)
- Malfunctioning accelerator pedal position sensor (APPS)
- Wiring issues or poor electrical connections
- ECM software glitches or calibration errors
- Mechanical issues in the throttle body or accelerator pedal assembly
Symptoms of P2135 Mercury
- Rough idling or fluctuating engine speed
- Engine stalling or hesitation during acceleration
- Reduced power and sluggish acceleration
- Illumination of the Check Engine Light (CEL)
- Limited throttle response or unresponsive accelerator pedal
How to Fix P2135 Mercury
- Diagnose the issue using a scan tool to retrieve the DTC and pinpoint the specific sensor or wiring problem causing the P2135 code.
- Inspect the TPS and APPS sensors for proper operation, checking for any signs of wear, corrosion, or damage.
- Test the wiring harness and connectors for continuity, ensuring there are no open circuits, shorts, or loose connections.
- Replace the faulty sensor (TPS or APPS) if necessary, following the manufacturer's guidelines and calibrating the new sensor as needed.
- Clear the DTC and perform a test drive to verify that the issue has been resolved, monitoring the sensor signals and engine performance.
Cost to Fix P2135 Mercury
The typical repair costs for addressing a P2135 code on a Mercury vehicle can range from $200 to $500, depending on the specific cause of the issue and the cost of replacement parts. This estimate includes the cost of a new throttle position sensor or accelerator pedal position sensor, as well as labor charges for diagnosis, repair, and sensor calibration. It is important to note that the actual repair costs may vary based on the vehicle's make and model, the severity of the issue, and the labor rates at the auto repair shop. Customers should consult with their local auto repair shops for a more accurate estimate based on their specific circumstances.
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