AutoCodes – GMC – P16AE 2016 GMC Sierra

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

Quick Answer

The Glow Plug Control Module (GPCM) has the ability to perform internal diagnostics for the temperature sensor circuit. Common causes include Faulty Glow Plug Control Module (GPCM), Glow Plug Control Module harness is open or shorted, Glow Plug Control Module circuit poor electrical connection. 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 (GPCM), Glow Plug Control Module harness is open or shorted, Glow Plug Control Module circuit poor electrical connection.
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 Popularity 160

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Oct 01, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P16AE 2016 GMC Sierra Description

The Glow Plug Control Module (GPCM) has the ability to perform internal diagnostics for the temperature sensor circuit. The GPCM monitors the internal temperature sensor voltage and if the voltage is less than 0.21 V or greater than 4.94 V. The GPCM will send a message to the Engine Control Module (ECM) to set the appropriate Diagnostic Trouble Code (DTC). A DTC is detected when one of the GPCM temperature sensors voltage falls outside the calibrated threshold for greater than 1.3 s.

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

What does this mean?

What are the Possible Causes of the DTC P16AE 2016 GMC Sierra?

Faulty Glow Plug Control Module (GPCM)
Glow Plug Control Module harness is open or shorted
Glow Plug Control Module circuit poor electrical connection

How to Fix the DTC P16AE 2016 GMC Sierra?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P16AE 2016 GMC Sierra code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P16AE 2016 GMC Sierra code?

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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.