Engine-CodesGeneric – P06AC

P06AC Code - Control Module Power Up Temperature Sensor Performance

Quick Answer

The diagnostic trouble code P06AC refers to the Control Module Power Up Temperature Sensor Performance. Common causes include Faulty power-up temperature sensor, Wiring or connector issues, ECM software 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
P06AC indicates Control Module Power Up Temperature Sensor Performance.
Common causes
Common causes include Faulty power-up temperature sensor, Wiring or connector issues, ECM software 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 11, 2024
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Code P06AC Description

The diagnostic trouble code P06AC refers to the Control Module Power Up Temperature Sensor Performance. In a vehicle, various sensors are responsible for monitoring and regulating different aspects of the engine and other systems. The power-up temperature sensor is crucial for detecting the temperature of the engine when it is started or powered up. This information is essential for the engine control module (ECM) to adjust fuel delivery, ignition timing, and other parameters for optimal performance and efficiency.

OBDII Code P06AC - Control Module Power Up Temperature Sensor Performance
P06AC Code - Control Module Power Up Temperature Sensor Performance

Common Causes of P06AC

  1. Faulty power-up temperature sensor
  2. Wiring or connector issues
  3. ECM software malfunction
  4. Engine coolant temperature sensor failure
  5. Electrical system issues

Symptoms of P06AC

  1. Check engine light illuminated on the dashboard
  2. Poor fuel economy
  3. Rough idling or hesitation
  4. Engine stalling
  5. Engine running too rich or lean

How to Fix P06AC

  1. Use a diagnostic scanner to retrieve the trouble code and verify the issue with the power-up temperature sensor.
  2. Inspect the sensor, wiring, and connectors for any visible damage or corrosion.
  3. Test the sensor's resistance and compare it to the manufacturer's specifications to determine if it is faulty.
  4. Replace the power-up temperature sensor if necessary and clear the trouble code from the ECM.
  5. Perform a test drive to ensure the issue has been resolved and the symptoms have been eliminated.

Cost to Fix P06AC

The typical repair costs for addressing the P06AC code may range from $100 to $300, depending on the cost of the sensor, labor rates, and any additional parts or services required. It's essential to consider that diagnostic time and labor rates at auto repair shops can vary significantly, so it's advisable to consult with a professional technician or shop for a more precise estimate based on your specific vehicle make and model.

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Code P06AC Information for Specific Makes

  • P06AC Buick — Control Module Power Up Temperature Sensor Performance
  • P06AC Cadillac — Control Module Power Up Temperature Sensor Performance
  • P06AC Chevrolet — Control Module Power Up Temperature Sensor Performance
  • P06AC GMC — Control Module Power Up Temperature Sensor Performance
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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