P1892 GMC Code - Throttle Position Sensor PWM Signal High
Quick Answer
The P1892 GMC diagnostic trouble code indicates that there is a problem with the Throttle Position Sensor (TPS) PWM (Pulse Width Modulation) signal being too high. Common causes include Faulty Throttle Position Sensor (TPS), Wiring or connector issues in the TPS circuit, Malfunctioning Engine Control Module (ECM). 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
- P1892 GMC indicates Throttle Position Sensor PWM Signal High.
- Common causes
- Common causes include Faulty Throttle Position Sensor (TPS), Wiring or connector issues in the TPS circuit, Malfunctioning Engine Control Module (ECM).
- 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 P1892 GMC Description
The P1892 GMC diagnostic trouble code indicates that there is a problem with the Throttle Position Sensor (TPS) PWM (Pulse Width Modulation) signal being too high. The TPS is a sensor that monitors the position of the throttle valve and sends this information to the engine control module (ECM). The PWM signal refers to the way the sensor communicates with the ECM by modulating the width of the signal pulses.
Common Causes of P1892 GMC
- Faulty Throttle Position Sensor (TPS).
- Wiring or connector issues in the TPS circuit.
- Malfunctioning Engine Control Module (ECM).
- Throttle body issues affecting the TPS signal.
- Environmental factors such as moisture or corrosion affecting sensor operation.
Symptoms of P1892 GMC
- Poor acceleration or lack of response when pressing the gas pedal.
- Rough idling or stalling when coming to a stop.
- Check Engine Light illuminated on the dashboard.
- Vehicle going into limp mode with reduced power.
- Inconsistent or erratic engine performance.
How to Fix P1892 GMC
- Begin by conducting a thorough inspection of the TPS, wiring, and connectors for any visible damage or corrosion.
- Use a multimeter to test the TPS for proper voltage output and resistance values according to manufacturer specifications.
- If the TPS is found to be faulty, replace it with a new OEM or high-quality aftermarket sensor.
- Clear the diagnostic trouble codes using a scan tool and test drive the vehicle to ensure the issue has been resolved.
- If the problem persists, further diagnosis may be needed to check for ECM or throttle body issues.
Cost to Fix P1892 GMC
The typical repair costs for addressing a high TPS PWM signal code like P1892 GMC can vary depending on the specific cause of the issue and the labor rates in your area. On average, the cost of replacing a faulty TPS sensor can range from $100 to $300, including parts and labor. However, additional diagnostic time and potential ECM or throttle body repairs could increase the total cost. It's recommended to consult with a trusted mechanic or auto repair shop to get an accurate estimate based on your vehicle's make and model. Labor rates typically range from $80 to $150 per hour, but can vary based on location and the repair facility.
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