P037A 2016 GMC Sierra Code - Wait To Start Indicator Control Circuit Low Voltage
Quick Answer
The P037A diagnostic trouble code (DTC) for a 2016 GMC Sierra refers to the Wait To Start Indicator Control Circuit Low Voltage. Common causes include Faulty wait to start indicator control module, Wiring issues such as shorts or open circuits in the control circuit, Corrosion or poor connections in the circuit. 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
- P037A 2016 GMC Sierra indicates Wait To Start Indicator Control Circuit Low Voltage.
- Common causes
- Common causes include Faulty wait to start indicator control module, Wiring issues such as shorts or open circuits in the control circuit, Corrosion or poor connections in the circuit.
- 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 P037A 2016 GMC Sierra Description
The P037A diagnostic trouble code (DTC) for a 2016 GMC Sierra refers to the Wait To Start Indicator Control Circuit Low Voltage. This code typically indicates a problem with the circuit that controls the wait to start indicator light on the dashboard. The wait to start indicator light is crucial for diesel vehicles as it informs the driver when the engine's glow plugs are preheating before starting the engine.
Common Causes of P037A 2016 GMC Sierra
- Faulty wait to start indicator control module.
- Wiring issues such as shorts or open circuits in the control circuit.
- Corrosion or poor connections in the circuit.
- Defective glow plugs.
- Issues with the vehicle's battery or charging system.
Symptoms of P037A 2016 GMC Sierra
- Extended cranking time before the engine starts.
- Illumination of the check engine light on the dashboard.
- Rough idling or engine misfires.
- Difficulty starting the engine, especially in cold weather.
- Reduced fuel efficiency.
How to Fix P037A 2016 GMC Sierra
- Begin by conducting a thorough inspection of the wait to start indicator control circuit, checking for any visible damage or corrosion.
- Test the glow plugs and the control module to ensure they are functioning correctly.
- Check the wiring harness for any shorts or open circuits, repairing or replacing as necessary.
- Clear the DTC from the vehicle's computer using a diagnostic scan tool.
- After repairs are completed, test the vehicle to ensure the issue has been resolved.
Cost to Fix P037A 2016 GMC Sierra
The cost of repairing a P037A code on a 2016 GMC Sierra can vary depending on the specific cause of the issue. On average, the parts required for this repair, such as a new control module or glow plugs, can range from $100 to $300. Labor costs at an auto repair shop can add an additional $100 to $200, bringing the total repair cost to approximately $200 to $500. It's important to note that these are rough estimates, and actual costs may vary based on the location, shop rates, and the extent of the repairs needed. It's recommended to consult with a professional mechanic for a more accurate cost estimate.
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