P1287 Cadillac Code - Accelerator Pedal Position Sensor 3 Circuit Low Voltage
Quick Answer
The P1287 diagnostic trouble code (DTC) for Cadillac vehicles indicates a problem with the Accelerator Pedal Position Sensor 3 Circuit, specifically indicating low voltage. Common causes include Faulty Accelerator Pedal Position Sensor, Wiring issues or loose connections in the sensor circuit, ECM malfunction or software glitches. 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
- P1287 Cadillac indicates Accelerator Pedal Position Sensor 3 Circuit Low Voltage.
- Common causes
- Common causes include Faulty Accelerator Pedal Position Sensor, Wiring issues or loose connections in the sensor circuit, ECM malfunction or software glitches.
- 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 P1287 Cadillac Description
The P1287 diagnostic trouble code (DTC) for Cadillac vehicles indicates a problem with the Accelerator Pedal Position Sensor 3 Circuit, specifically indicating low voltage. The Accelerator Pedal Position Sensor (APPS) is a crucial component of the vehicle's electronic throttle control system, responsible for communicating the position of the accelerator pedal to the Engine Control Module (ECM). This information is used by the ECM to adjust fuel delivery and engine performance accordingly.
Common Causes of P1287 Cadillac
- Faulty Accelerator Pedal Position Sensor
- Wiring issues or loose connections in the sensor circuit
- ECM malfunction or software glitches
- Corrosion or damage to sensor connectors
- Environmental factors such as moisture or heat affecting sensor performance
Symptoms of P1287 Cadillac
- Hesitation or lack of response when pressing the accelerator pedal
- Poor acceleration and reduced engine power
- Stalling or difficulty starting the vehicle
- Reduced fuel efficiency
- Illumination of the Check Engine Light
How to Fix P1287 Cadillac
- Begin by conducting a comprehensive diagnostic scan to confirm the P1287 code and pinpoint the exact cause of the low voltage issue.
- Inspect the wiring and connectors in the Accelerator Pedal Position Sensor circuit for any damage, corrosion, or loose connections. Repair or replace as necessary.
- Test the Accelerator Pedal Position Sensor for proper functionality and voltage output. Replace the sensor if it is found to be faulty.
- Clear the DTC and reset the ECM to see if the code reoccurs. Test drive the vehicle to ensure the issue has been resolved.
- If the problem persists, further diagnostic tests may be needed to identify any underlying ECM issues or other potential causes of the low voltage in the sensor circuit.
Cost to Fix P1287 Cadillac
The typical repair costs for addressing the P1287 code on a Cadillac vehicle can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, replacing a faulty Accelerator Pedal Position Sensor or repairing wiring/connectors can cost anywhere from $150 to $500, including parts and labor. However, it is important to note that labor rates at auto repair shops can vary significantly, with hourly rates typically ranging between $80 and $150. Additional diagnostic time may also be necessary to pinpoint the exact cause of the low voltage issue, potentially increasing the overall repair costs. It is recommended to consult with a qualified mechanic or auto repair shop for a more accurate estimate based on the individual circumstances of the vehicle.
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