P1527 GMC Code - Throttle Position Sensor Learned Closed Throttle Degrees Out Of-Range
Quick Answer
The P1527 GMC code indicates that the throttle position sensor (TPS) has learned a closed throttle position that is out of range, meaning that the sensor is detecting an abnormal closed throttle position. Common causes include Faulty throttle position sensor, Dirty or contaminated throttle body, Wiring or connector issues in the TPS circuit. 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
- P1527 GMC indicates Throttle Position Sensor Learned Closed Throttle Degrees Out Of-Range.
- Common causes
- Common causes include Faulty throttle position sensor, Dirty or contaminated throttle body, Wiring or connector issues in the TPS circuit.
- 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 P1527 GMC Description
The P1527 GMC code indicates that the throttle position sensor (TPS) has learned a closed throttle position that is out of range, meaning that the sensor is detecting an abnormal closed throttle position. The TPS is a crucial component of the vehicle's fuel injection system, as it measures the angle of the throttle plate and sends this information to the engine control module (ECM). This data is used by the ECM to calculate the appropriate air-fuel mixture for optimal engine performance.
Common Causes of P1527 GMC
- Faulty throttle position sensor
- Dirty or contaminated throttle body
- Wiring or connector issues in the TPS circuit
- ECM software or calibration issues
- Mechanical issues with the throttle plate or linkage
Symptoms of P1527 GMC
- Check Engine Light illuminated on the dashboard
- Poor engine performance, such as rough idling or stalling
- Hesitation or lack of response during acceleration
- Reduced fuel efficiency
- Difficulty starting the engine
How to Fix P1527 GMC
- Diagnose the issue by using a scan tool to read the trouble code and inspecting the TPS, throttle body, and related components.
- Clean the throttle body to remove any dirt or debris that may be affecting the TPS's readings.
- Test the TPS using a multimeter to ensure it is functioning within the manufacturer's specified range.
- Replace the throttle position sensor if it is found to be faulty or out of range.
- Reset the ECM and perform a throttle relearn procedure to calibrate the TPS and ensure proper operation.
Cost to Fix P1527 GMC
The typical repair costs for addressing a Throttle Position Sensor Learned Closed Throttle Degrees Out Of-Range issue can vary depending on the specific cause of the problem and the cost of parts and labor. In general, replacing a faulty TPS can cost between $50 and $200, while cleaning the throttle body may cost around $50 to $100. The total repair cost, including diagnostic time and labor charges, can range from $150 to $500. It is recommended to consult with a qualified mechanic or auto repair shop for an accurate estimate based on your vehicle's make and model. Keep in mind that labor rates can vary, so it's advisable to inquire about rates in your area.
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