Engine-CodesCadillac – P1892 Cadillac

P1892 Cadillac Code - Throttle Position Sensor PWM Signal High

Quick Answer

The P1892 Cadillac code indicates a Throttle Position Sensor (TPS) PWM Signal High, which means that the signal sent by the throttle position sensor to the engine control module is registering as too high. Common causes include Faulty throttle position sensor, Wiring or connector issues, Engine control module malfunction. 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 Cadillac indicates Throttle Position Sensor PWM Signal High.
Common causes
Common causes include Faulty throttle position sensor, Wiring or connector issues, Engine control module malfunction.
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.
Table of contents Created and updated by William Orellana on Sep 09, 2024
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Code P1892 Cadillac Description

The P1892 Cadillac code indicates a Throttle Position Sensor (TPS) PWM Signal High, which means that the signal sent by the throttle position sensor to the engine control module is registering as too high. The throttle position sensor is a crucial component in the engine management system as it informs the ECU about the position of the throttle plate. This information is essential for the engine to adjust fuel delivery and air intake to achieve the desired performance and efficiency.

OBDII Code P1892 Cadillac - Throttle Position Sensor PWM Signal High
P1892 Cadillac Code - Throttle Position Sensor PWM Signal High

Common Causes of P1892 Cadillac

  1. Faulty throttle position sensor
  2. Wiring or connector issues
  3. Engine control module malfunction
  4. Corrosion or contamination in the sensor or wiring
  5. Electrical interference or circuit malfunction

Symptoms of P1892 Cadillac

  1. Hesitation or surging during acceleration
  2. Rough idling
  3. Poor fuel economy
  4. Stalling
  5. Check Engine Light illuminated

How to Fix P1892 Cadillac

  1. Begin by diagnosing the issue using a scan tool to read the trouble code and check the throttle position sensor's output voltage.
  2. Inspect the wiring and connectors for any damage, corrosion, or loose connections. Repair or replace as needed.
  3. Test the throttle position sensor using a multimeter to ensure it is functioning correctly.
  4. If the throttle position sensor is faulty, replace it with a new one following the manufacturer's guidelines.
  5. Clear the trouble code and perform a test drive to verify that the issue has been resolved.

Cost to Fix P1892 Cadillac

The typical repair costs for addressing a Throttle Position Sensor PWM Signal High code can range from $100 to $300, including parts and labor. However, specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It's advisable to check local rates for a more precise estimate. Keep in mind that rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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