Engine-CodesGMC – P0381 2016 GMC Sierra

P0381 2016 GMC Sierra Code - Wait To Start Indicator Control Circuit

Quick Answer

The P0381 diagnostic trouble code (DTC) for a 2016 GMC Sierra refers to an issue with the Wait To Start Indicator Control Circuit. Common causes include Damaged wiring in the wait to start indicator control circuit, Faulty indicator control module, Defective indicator light. 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 2016 GMC Sierra indicates Wait To Start Indicator Control Circuit.
Common causes
Common causes include Damaged wiring in the wait to start indicator control circuit, Faulty indicator control module, Defective indicator light.
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.
Table of contents Created and updated by William Orellana on Sep 18, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P0381 2016 GMC Sierra Description

The P0381 diagnostic trouble code (DTC) for a 2016 GMC Sierra refers to an issue with the Wait To Start Indicator Control Circuit. This code is typically associated with diesel engines and 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 engines as it informs the driver when the engine is ready to be started, especially in cold weather conditions.

OBDII Code P0381 2016 GMC Sierra - Wait To Start Indicator Control Circuit
P0381 2016 GMC Sierra Code - Wait To Start Indicator Control Circuit

Common Causes of P0381 2016 GMC Sierra

  1. Damaged wiring in the wait to start indicator control circuit.
  2. Faulty indicator control module.
  3. Defective indicator light.
  4. Issues with the engine control module (ECM).
  5. Corrosion or loose connections in the circuit.

Symptoms of P0381 2016 GMC Sierra

  1. Difficulty starting the engine, especially in cold weather.
  2. Illumination of the check engine light.
  3. Prolonged cranking times before the engine starts.
  4. Reduced fuel efficiency.
  5. Engine stalling.

How to Fix P0381 2016 GMC Sierra

  1. Begin by conducting a visual inspection of the wiring and connections in the wait to start indicator control circuit.
  2. Test the indicator control module and indicator light for proper functionality.
  3. Use a multimeter to check for continuity and voltage in the circuit.
  4. Replace any damaged wiring, faulty components, or corroded connections as needed.
  5. Clear the DTC and test the vehicle to ensure the issue has been resolved.

Cost to Fix P0381 2016 GMC Sierra

The typical repair costs for addressing the P0381 code on a 2016 GMC Sierra can vary depending on the specific cause of the issue. In general, parts for this repair may range from $50 to $200, while labor costs can range from $100 to $300. Keep in mind that diagnostic time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate.

Need more information about the P0381 2016 GMC Sierra code?

Need more information on how to fix the P0381 2016 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0381 2016 GMC Sierra code diagnosed by a professional: Find a repair shop in your area

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 P0381 2016 GMC Sierra Code

1. What are the common symptoms of OBDII code P0381 in a 2016 GMC Sierra?

The common symptoms of OBDII code P0381 in a 2016 GMC Sierra include the "Wait To Start" indicator not illuminating or staying on for an extended period when starting the vehicle.

2. What does the OBDII code P0381 for a 2016 GMC Sierra indicate?

OBDII code P0381 in a 2016 GMC Sierra relates to the Wait To Start Indicator Control Circuit, signaling an issue with the circuit responsible for controlling the glow plug indicator light.

3. What are some possible causes of OBDII code P0381 in a 2016 GMC Sierra?

Possible causes of OBDII code P0381 in a 2016 GMC Sierra include a faulty glow plug relay, damaged wiring in the indicator circuit, or a malfunctioning glow plug control module.

4. How can I diagnose the OBDII code P0381 in my 2016 GMC Sierra?

Diagnosing OBDII code P0381 in a 2016 GMC Sierra involves checking the glow plug relay, inspecting the wiring for any damage, and testing the glow plug control module for proper functionality using a multimeter.

5. Can I still drive my 2016 GMC Sierra with OBDII code P0381 active?

It is not recommended to drive your 2016 GMC Sierra with OBDII code P0381 active, as it can lead to starting issues and potential engine damage if left unresolved.

6. How can I repair OBDII code P0381 in my 2016 GMC Sierra?

Repairing OBDII code P0381 in a 2016 GMC Sierra may involve replacing the glow plug relay, repairing any damaged wiring in the indicator circuit, or replacing the glow plug control module as needed.

7. Will resetting the OBDII code P0381 in my 2016 GMC Sierra solve the issue?

Resetting the OBDII code P0381 in a 2016 GMC Sierra may temporarily clear the code, but if the underlying issue causing the code is not addressed, it is likely to reappear upon the next diagnostic scan.

8. Can a DIY enthusiast fix OBDII code P0381 in a 2016 GMC Sierra?

Depending on their skill level and access to tools, a DIY enthusiast may be able to fix OBDII code P0381 in a 2016 GMC Sierra by following repair guides and using the right diagnostic equipment.

9. How much does it typically cost to repair OBDII code P0381 in a 2016 GMC Sierra at a dealership?

The cost of repairing OBDII code P0381 in a 2016 GMC Sierra at a dealership can vary depending on the specific issue, parts needed, and labor costs, but it may range from a few hundred to over a thousand dollars.

10. Is it important to address OBDII code P0381 promptly in a 2016 GMC Sierra?

Yes, it is essential to address OBDII code P0381 promptly in a 2016 GMC Sierra to prevent potential starting issues, engine damage, and ensure the vehicle operates safely and efficiently.

Discuss the causes and fixes for P0381 2016 GMC Sierra OBDII Code

Code P0381 2016 GMC Sierra comments

No comments found for this page.