AutoCodes – Chevrolet – P16AE 2016 Chevrolet Silverado

P16AE 2016 Chevrolet Silverado 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 Chevrolet Silverado 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 216

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 Chevrolet Silverado 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 Chevrolet Silverado - Glow Plug Control Module Temperature Sensor Circuit High Voltage - AutoCodes.com — P16AE 2016 Chevrolet Silverado Code - Glow Plug Control Module Temperature Sensor Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P16AE 2016 Chevrolet Silverado?

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 Chevrolet Silverado?

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 Chevrolet Silverado 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 Chevrolet Silverado 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 Chevrolet Silverado Code

1. What does the OBDII code P16AE mean on a 2016 Chevrolet Silverado?

P16AE indicates a high voltage issue in the Glow Plug Control Module Temperature Sensor Circuit, which is part of the diesel engine's glow plug system.

2. What are the common symptoms of the P16AE code on a Chevy Silverado?

Symptoms may include a check engine light, difficulty starting the engine in cold weather, rough idling, or reduced fuel efficiency.

3. What causes the P16AE code to trigger in a 2016 Silverado?

The code is typically caused by a faulty glow plug control module, damaged temperature sensor wiring, poor electrical connections, or a defective temperature sensor.

4. Can I drive my 2016 Chevrolet Silverado with the P16AE code?

While the truck may still run, driving with this code can lead to harder cold starts and potential damage to the glow plug system if left unresolved.

5. How do I fix the P16AE code on my Silverado?

Repairs may include inspecting and repairing damaged wiring, replacing the temperature sensor, or replacing the glow plug control module if it's defective.

6. How is the P16AE code diagnosed?

A mechanic will use a scan tool to verify the code, inspect the wiring and connectors for damage, and test the temperature sensor and control module for proper function.

7. How much does it cost to fix the P16AE code on a 2016 Chevy Silverado?

Repair costs can vary, but replacing a glow plug control module can cost between $300 and $500, while fixing wiring or a sensor may be less expensive.

8. What happens if I ignore the P16AE code?

Ignoring the code can lead to worsening cold-start issues, reduced performance, and possible long-term damage to the glow plug system.

9. Can a bad battery cause the P16AE code to appear?

A weak or failing battery can sometimes contribute to electrical issues, but the code is more commonly related to wiring or sensor faults in the glow plug system.

10. Is the P16AE code specific to diesel engines?

Yes, the P16AE code is specific to diesel engines, as it pertains to the glow plug system used for starting diesel engines in cold conditions.