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P16AE 2016 GMC Sierra Code - Glow Plug Control Module Temperature Sensor Circuit High Voltage

Quick Answer

The diagnostic trouble code (DTC) P16AE in a 2016 GMC Sierra indicates a problem with the Glow Plug Control Module Temperature Sensor Circuit, specifically detecting high voltage. Common causes include Faulty Glow Plug Control Module Temperature Sensor, Wiring or connection issues in the circuit, Corrosion or damage to the sensor or module. 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
P16AE 2016 GMC Sierra indicates Glow Plug Control Module Temperature Sensor Circuit High Voltage.
Common causes
Common causes include Faulty Glow Plug Control Module Temperature Sensor, Wiring or connection issues in the circuit, Corrosion or damage to the sensor or module.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code P16AE 2016 GMC Sierra Description

The diagnostic trouble code (DTC) P16AE in a 2016 GMC Sierra indicates a problem with the Glow Plug Control Module Temperature Sensor Circuit, specifically detecting high voltage. The Glow Plug Control Module is an essential component in diesel engines, responsible for managing the glow plug system that assists in starting the engine, especially in cold conditions. The temperature sensor is crucial for monitoring the module's temperature to ensure optimal performance and prevent overheating.

OBDII Code P16AE 2016 GMC Sierra - Glow Plug Control Module Temperature Sensor Circuit High Voltage
P16AE 2016 GMC Sierra Code - Glow Plug Control Module Temperature Sensor Circuit High Voltage

Common Causes of P16AE 2016 GMC Sierra

  1. Faulty Glow Plug Control Module Temperature Sensor.
  2. Wiring or connection issues in the circuit.
  3. Corrosion or damage to the sensor or module.
  4. Electrical problems such as a short circuit or open circuit.
  5. Environmental factors leading to sensor malfunctions, such as exposure to extreme temperatures.

Symptoms of P16AE 2016 GMC Sierra

  1. Difficulty starting the engine, especially in cold weather.
  2. Rough idling or unstable engine operation.
  3. Misfires or hesitation during acceleration.
  4. Illumination of the check engine light.
  5. Reduced fuel efficiency.

How to Fix P16AE 2016 GMC Sierra

  1. Begin by conducting a thorough diagnostic scan to confirm the P16AE code and identify the specific cause of the issue.
  2. Inspect the Glow Plug Control Module Temperature Sensor and its wiring for any visible damage or corrosion. Replace the sensor if necessary.
  3. Check the circuit connections for any loose or damaged wires. Repair or replace as needed.
  4. Clear the DTC and perform a test drive to ensure the issue has been resolved and the engine operates correctly.
  5. If the problem persists, seek professional assistance to address more complex electrical issues or module failures.

Cost to Fix P16AE 2016 GMC Sierra

The typical repair costs for addressing the P16AE code in a 2016 GMC Sierra can vary depending on the specific cause of the issue. In general, replacing the Glow Plug Control Module Temperature Sensor and addressing related wiring or connection problems can range from $200 to $500, including parts and labor. However, it's essential to consider additional diagnostic time and labor rates at auto repair shops, which can vary based on location, vehicle make and model, and the complexity of the repair. It's advisable to consult with a qualified mechanic or dealership to obtain a more precise estimate based on the specific circumstances.

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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.

Frequently Asked Questions about P16AE 2016 GMC Sierra Code

1. What are the common symptoms of OBDII code P16AE in a 2016 GMC Sierra?

The common symptoms of OBDII code P16AE in a 2016 GMC Sierra include rough idling, decreased engine performance, poor fuel economy, and the illumination of the check engine light.

2. What is the cause of OBDII code P16AE in a 2016 GMC Sierra?

The cause of OBDII code P16AE in a 2016 GMC Sierra is typically a malfunction in the glow plug control module temperature sensor circuit, leading to high voltage readings.

3. How can I diagnose OBDII code P16AE in my 2016 GMC Sierra?

Diagnosing OBDII code P16AE in a 2016 GMC Sierra involves using an OBDII scanner to retrieve the specific fault code, inspecting the glow plug control module and its connections, and testing the temperature sensor for proper functioning.

4. Can I still drive my 2016 GMC Sierra with OBDII code P16AE?

It is not recommended to drive your 2016 GMC Sierra with OBDII code P16AE, as it can lead to further damage to the glow plug control module and affect the performance of your vehicle.

5. How do I repair OBDII code P16AE in my 2016 GMC Sierra?

Repairing OBDII code P16AE in a 2016 GMC Sierra involves replacing the faulty glow plug control module temperature sensor, checking and repairing any damaged wiring or connectors, and clearing the fault code with an OBDII scanner.

6. Are there any preventive measures to avoid OBDII code P16AE in my 2016 GMC Sierra?

To prevent OBDII code P16AE in your 2016 GMC Sierra, it is recommended to perform regular maintenance checks on the glow plug system, including inspecting the control module and sensor for any signs of wear or damage.

7. Can a DIY enthusiast fix OBDII code P16AE in a 2016 GMC Sierra?

While some DIY enthusiasts may have the skills to diagnose and repair OBDII code P16AE in a 2016 GMC Sierra, it is advisable to consult with a professional mechanic for accurate diagnosis and proper repairs to avoid further complications.

8. How much does it cost to repair OBDII code P16AE in a 2016 GMC Sierra?

The cost to repair OBDII code P16AE in a 2016 GMC Sierra can vary depending on the extent of the damage, the cost of replacement parts, and the labor charges from a mechanic. It is advisable to obtain quotes from different repair shops for comparison.

9. Is OBDII code P16AE a common issue in 2016 GMC Sierra vehicles?

While OBDII code P16AE related to the glow plug control module temperature sensor circuit high voltage may not be extremely common, it can still occur in 2016 GMC Sierra vehicles due to various factors such as normal wear and tear or electrical issues.

10. Can OBDII code P16AE in a 2016 GMC Sierra be reset without fixing the underlying issue?

Resetting OBDII code P16AE in a 2016 GMC Sierra without fixing the underlying issue, such as replacing the faulty sensor, may temporarily turn off the check engine light, but the problem will likely persist and trigger the code again in the future.

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