P16AE GMC Code - Glow Plug Control Module Temperature Sensor Circuit High Voltage
Quick Answer
The P16AE GMC code indicates a problem with the Glow Plug Control Module Temperature Sensor Circuit, specifically detecting high voltage. Common causes include Faulty temperature sensor, Damaged wiring or connectors in the circuit, Malfunctioning glow plug control 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 GMC indicates Glow Plug Control Module Temperature Sensor Circuit High Voltage.
- Common causes
- Common causes include Faulty temperature sensor, Damaged wiring or connectors in the circuit, Malfunctioning glow plug control 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.
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Code P16AE GMC Description
The P16AE GMC code indicates a problem with the Glow Plug Control Module Temperature Sensor Circuit, specifically detecting high voltage. The glow plug control module is responsible for regulating the glow plugs in a diesel engine, which are used to heat the combustion chamber for easier cold starts. The temperature sensor in the module helps monitor the temperature of the glow plugs to ensure they are functioning properly.
Common Causes of P16AE GMC
- Faulty temperature sensor
- Damaged wiring or connectors in the circuit
- Malfunctioning glow plug control module
- Issues with the vehicle's electrical system
Symptoms of P16AE GMC
- Difficulties starting the vehicle, especially in cold weather
- Decreased fuel efficiency
- Rough idling or engine misfires
- Illumination of the check engine light
- Reduced engine performance
How to Fix P16AE GMC
- Begin by diagnosing the specific cause of the high voltage in the temperature sensor circuit using a diagnostic scanner.
- Inspect the wiring and connectors for any damage or corrosion, repairing or replacing as needed.
- Test the temperature sensor for proper functioning and replace if necessary.
- If the issue persists, replace the glow plug control module.
- Clear the diagnostic trouble codes and test the vehicle to ensure the issue has been resolved.
Cost to Fix P16AE GMC
The typical repair costs for addressing a P16AE GMC code can vary depending on the specific cause of the issue. In general, replacing a temperature sensor or repairing wiring/connectors may cost between $100 to $300, while replacing a glow plug control module can range from $200 to $500. Labor costs can add an additional $80 to $150 per hour, depending on the shop's rates and location. It is recommended to consult with a qualified mechanic to get a more accurate estimate based on your vehicle's make and model.
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Information for Specific GMC Models
- P16AE 2014 GMC Sierra — Glow Plug Control Module Temperature Sensor Circuit High Voltage
- P16AE 2015 GMC Sierra — Glow Plug Control Module Temperature Sensor Circuit High Voltage
- P16AE 2016 GMC Sierra — Glow Plug Control Module Temperature Sensor Circuit High Voltage
- P16AE 2017 GMC Sierra — Glow Plug Control Module Temperature Sensor Circuit High Voltage
- P16AE 2018 GMC Sierra — Glow Plug Control Module Temperature Sensor Circuit High Voltage
Frequently Asked Questions about P16AE GMC Code
What does the OBDII code P16AE mean on a GMC vehicle?
1. The P16AE code indicates a high voltage issue in the Glow Plug Control Module Temperature Sensor Circuit, which monitors the temperature of the glow plug system. 2.
What are the common symptoms of the P16AE code on a GMC?
Common symptoms include the check engine light turning on, difficulty starting the engine in cold weather, and reduced engine performance. 3.
What causes the P16AE code to appear on a GMC?
Possible causes include a faulty temperature sensor, damaged wiring or connectors, or an issue with the glow plug control module itself. 4.
Can I drive my GMC with the P16AE code active?
While you might still be able to drive the vehicle, it’s not recommended as it could lead to poor cold starting performance and potential long-term damage to the glow plug system. 5.
How do I diagnose the P16AE code on my GMC?
Diagnosis typically involves checking the wiring and connectors for damage, testing the temperature sensor for proper operation, and using a scan tool to monitor circuit voltages. 6.
How is the P16AE code repaired on a GMC?
Repairs may include replacing the glow plug control module temperature sensor, repairing or replacing damaged wiring and connectors, or reprogramming the control module if necessary. 7.
How much does it cost to fix the P16AE code on a GMC?
Repair costs can range from $100 to $500, depending on whether the issue is related to the sensor, wiring, or the glow plug control module itself. 8.
Can a faulty glow plug cause the P16AE code on a GMC?
No, this code is specifically related to the temperature sensor circuit, not the glow plug itself. However, glow plugs should still be checked as part of the system. 9.
What tools are needed to troubleshoot the P16AE code on a GMC?
You’ll need an OBDII scanner, a multimeter to test voltages and continuity, and possibly a wiring diagram for the glow plug system. 10.
Will clearing the P16AE code fix the problem on a GMC?
Clearing the code will turn off the check engine light temporarily, but unless the underlying issue is resolved, the code will return.
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