P0381 2014 GMC Sierra Code - Wait To Start Indicator Control Circuit
Quick Answer
The P0381 diagnostic trouble code (DTC) for a 2014 GMC Sierra relates to the Wait To Start Indicator Control Circuit. Common causes include Faulty wait to start indicator control module, Wiring issues or damaged connectors in the control circuit, Malfunctioning glow plug relay. 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
- P0381 2014 GMC Sierra indicates Wait To Start Indicator Control Circuit.
- Common causes
- Common causes include Faulty wait to start indicator control module, Wiring issues or damaged connectors in the control circuit, Malfunctioning glow plug relay.
- 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 P0381 2014 GMC Sierra Description
The P0381 diagnostic trouble code (DTC) for a 2014 GMC Sierra relates to the Wait To Start Indicator Control Circuit. This code indicates a problem with the circuit that controls the wait to start indicator light on the dashboard of the vehicle. The wait to start indicator light typically illuminates when the engine is cold, signaling to the driver that the engine should not be started until the glow plugs have had sufficient time to warm up.
Common Causes of P0381 2014 GMC Sierra
- Faulty wait to start indicator control module
- Wiring issues or damaged connectors in the control circuit
- Malfunctioning glow plug relay
- Defective glow plugs
- Corrosion or poor connections in the circuit
Symptoms of P0381 2014 GMC Sierra
- Extended cranking times when starting the engine
- Check engine light illuminated on the dashboard
- Difficulty starting the engine, especially in cold weather
- Reduced fuel efficiency
How to Fix P0381 2014 GMC Sierra
- Begin by conducting a thorough visual inspection of the wiring and connectors in the wait to start indicator control circuit.
- Test the glow plug relay and replace it if necessary.
- Check the glow plugs for proper functioning and replace any faulty ones.
- Inspect the wait to start indicator control module and replace it if deemed defective.
- Clear the diagnostic trouble codes from the vehicle's computer and test the system to ensure proper operation.
Cost to Fix P0381 2014 GMC Sierra
The cost of repairing a P0381 DTC on a 2014 GMC Sierra can vary depending on the specific cause of the issue and the labor rates in your area. On average, the parts for this repair, including a new glow plug relay and potentially new glow plugs, can range from $100 to $300. Labor costs at an auto repair shop typically range from $80 to $150 per hour, with the total repair bill likely falling between $200 and $500. It is advisable to contact local auto repair shops for accurate pricing based on your location and vehicle specifics.
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Frequently Asked Questions about P0381 2014 GMC Sierra Code
Q: What does the OBDII code P0381 mean on a 2014 GMC Sierra?
1. A: The P0381 code indicates an issue with the Wait To Start Indicator Control Circuit, which is part of the diesel engine's glow plug system. 2.
Q: What are the symptoms of the P0381 code on a 2014 GMC Sierra?
A: Symptoms include the Wait To Start light not illuminating, hard engine starts in cold weather, and potential illumination of the check engine light. 3.
Q: What causes the P0381 code on a 2014 GMC Sierra?
A: Common causes include a faulty glow plug control module, damaged wiring or connectors in the circuit, or a malfunctioning Wait To Start indicator bulb. 4.
Q: Can I drive my 2014 GMC Sierra with the P0381 code?
A: While the vehicle may still be drivable, it may struggle to start in cold weather, and prolonged issues could lead to additional engine wear or damage. 5.
Q: How do I diagnose the P0381 code on a 2014 GMC Sierra?
A: Diagnosis involves checking the Wait To Start indicator bulb, inspecting the wiring and connectors in the circuit, and testing the glow plug control module for faults. 6.
Q: How is the P0381 code repaired on a 2014 GMC Sierra?
A: Repairs typically include replacing a faulty glow plug control module, fixing damaged wiring or connectors, or replacing the Wait To Start indicator bulb. 7.
Q: What tools are needed to troubleshoot the P0381 code on a 2014 GMC Sierra?
A: You'll need an OBDII scanner, a multimeter for checking electrical connections, and possibly a wiring diagram for the circuit. 8.
Q: Can a bad battery cause the P0381 code on a 2014 GMC Sierra?
A: A weak or failing battery can contribute to issues with the glow plug system, but it is not a direct cause of the P0381 code. 9.
Q: How much does it cost to fix the P0381 code on a 2014 GMC Sierra?
A: Repair costs vary depending on the issue, ranging from $50 for a bulb replacement to $300 or more for a new glow plug control module. 10.
Q: Will clearing the P0381 code resolve the issue?
A: Clearing the code with an OBDII scanner will not fix the underlying problem; proper diagnosis and repair are necessary to prevent the code from returning.
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