P1892 Code - Throttle Position Sensor PWM Signal High
Quick Answer
The P1892 code indicates that the throttle position sensor (TPS) is sending a high PWM (Pulse Width Modulation) signal to the engine control module (ECM). Common causes include Faulty throttle position sensor, Wiring or connector issues, Malfunctioning 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 indicates Throttle Position Sensor PWM Signal High.
- Common causes
- Common causes include Faulty throttle position sensor, Wiring or connector issues, Malfunctioning 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P1892 Description
The P1892 code indicates that the throttle position sensor (TPS) is sending a high PWM (Pulse Width Modulation) signal to the engine control module (ECM). The TPS is a critical component of the engine management system, as it monitors the position of the throttle valve and sends this information to the ECM to adjust fuel delivery and ignition timing accordingly. A high PWM signal from the TPS can lead to incorrect fuel and air mixture, resulting in poor engine performance, reduced fuel efficiency, and potential drivability issues.
Common Causes of P1892
- Faulty throttle position sensor
- Wiring or connector issues
- Malfunctioning ECM
- Throttle body assembly issues
- Environmental factors like moisture or corrosion
Symptoms of P1892
- Rough idling
- Stalling or hesitation on acceleration
- Reduced fuel efficiency
- Check Engine Light illuminated
- Lack of power or responsiveness
How to Fix P1892
- Diagnose the issue by using a scan tool to read the code and inspecting the TPS and related wiring for any visible damage.
- Test the TPS using a multimeter to check for proper voltage output and resistance readings.
- Replace the throttle position sensor if it is found to be faulty, making sure to follow manufacturer's instructions for proper installation.
- Inspect and repair any damaged wiring or connectors, ensuring a secure connection between the TPS and ECM.
- Clear the diagnostic trouble codes from the ECM and perform a test drive to ensure the issue has been resolved.
Cost to Fix P1892
The cost of repairing a throttle position sensor PWM signal high issue can vary depending on the make and model of the vehicle, the location of the repair shop, and the extent of the problem. In general, replacing a faulty TPS can cost between $100 and $300, including parts and labor. Additional costs may be incurred if wiring or connectors need to be replaced. It's recommended to consult with a professional mechanic for a more accurate cost estimate based on the specific circumstances. Labor rates at auto repair shops typically range from $80 to $150 per hour.
Need more information about the P1892 code?
Need more information on how to fix the P1892 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1892 code diagnosed by a professional: Find a repair shop in your area
Code P1892 Information for Specific Makes
- P1892 Buick — Throttle Position Sensor PWM Signal High
- P1892 Cadillac — Throttle Position Sensor PWM Signal High
- P1892 Chevrolet — Throttle Position Sensor PWM Signal High
- P1892 GMC — Throttle Position Sensor PWM Signal High
Frequently Asked Questions about P1892 Code
No Frequently Asked Questions about P1892 Code found.
Discuss the causes and fixes for P1892 OBDII Code
Code P1892 comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.