P16AD 2014 Chevrolet Silverado Code - Glow Plug Control Module Temperature Sensor Circuit Low 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
- P16AD 2014 Chevrolet Silverado indicates Glow Plug Control Module Temperature Sensor Circuit Low 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.
Code P16AD 2014 Chevrolet Silverado Description
What are the Possible Causes of the DTC P16AD 2014 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 P16AD 2014 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 P16AD 2014 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.
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Frequently Asked Questions about P16AD 2014 Chevrolet Silverado Code
What does the OBDII code P16AD mean for a 2014 Chevrolet Silverado?
The P16AD code indicates a low voltage issue in the Glow Plug Control Module Temperature Sensor Circuit, which monitors the temperature of the glow plug system.
What are common symptoms of the P16AD code in a 2014 Chevy Silverado?
Symptoms include an illuminated Check Engine Light, difficulty starting the engine in cold weather, reduced performance, or pre-heating system malfunctions.
What causes the P16AD code to be triggered?
Common causes include a faulty glow plug control module temperature sensor, damaged wiring or connectors, corrosion in the circuit, or a failed glow plug control module.
Can I continue driving with the P16AD code active?
While the vehicle may still run, driving with this code can lead to poor cold-weather performance and potential engine damage if the glow plug system isn’t functioning properly.
How do I diagnose the P16AD code?
Start by inspecting the wiring and connectors for damage or corrosion, then test the glow plug control module temperature sensor and circuit for proper voltage and resistance.
How is the P16AD code fixed?
Repairs may involve replacing the glow plug control module temperature sensor, repairing damaged wiring, cleaning corroded connectors, or replacing the glow plug control module if faulty.
What tools are needed to diagnose and repair the P16AD code?
You’ll need an OBDII scanner, a digital multimeter to test voltage and resistance, and possibly a wiring diagram for the glow plug system.
How much does it cost to fix the P16AD code?
Repair costs vary, but replacing a glow plug control module temperature sensor typically ranges from $100 to $300, including parts and labor.
Can a software update fix the P16AD code?
In some cases, a software update from the dealer may resolve the issue if it’s related to the glow plug control module programming.
Is the P16AD code specific to diesel engines?
Yes, the P16AD code is specific to diesel engines, as it relates to the glow plug system used to assist in cold starts.
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