P103E GMC Code - Auxiliary Coolant Pump Control Signal Message Counter Incorrect
Quick Answer
The P103E code for GMC vehicles indicates that there is an issue with the Auxiliary Coolant Pump Control Signal Message Counter being incorrect. Common causes include Faulty wiring connections, Malfunctioning control module, Defective auxiliary coolant pump. 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
- P103E GMC indicates Auxiliary Coolant Pump Control Signal Message Counter Incorrect.
- Common causes
- Common causes include Faulty wiring connections, Malfunctioning control module, Defective auxiliary coolant pump.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P103E GMC Description
The P103E code for GMC vehicles indicates that there is an issue with the Auxiliary Coolant Pump Control Signal Message Counter being incorrect. The auxiliary coolant pump plays a crucial role in maintaining the optimal temperature of the engine by circulating coolant through the system. When the control signal message counter is incorrect, it means that the communication between the control module and the auxiliary coolant pump is not functioning as it should. This can lead to problems with the coolant pump not operating at the right times or speeds, potentially causing the engine to overheat or not reach the optimal operating temperature.
Common Causes of P103E GMC
- Faulty wiring connections
- Malfunctioning control module
- Defective auxiliary coolant pump
- Issues with the coolant pump relay
Symptoms of P103E GMC
- Engine overheating
- Reduced fuel efficiency
- Engine running at improper temperatures
- Check engine light illuminated on the dashboard
How to Fix P103E GMC
- Begin by conducting a thorough inspection of the wiring connections related to the auxiliary coolant pump. Look for any signs of damage, corrosion, or loose connections. Repair or replace any faulty wiring.
- Test the control module to ensure that it is functioning correctly. If the control module is found to be faulty, replace it with a new one.
- Check the auxiliary coolant pump for any signs of malfunction. Test the pump to see if it is circulating coolant properly. If the pump is not working as it should, replace it.
- Inspect the coolant pump relay to verify that it is sending the correct signals to the pump. If the relay is faulty, replace it with a new one.
Cost to Fix P103E GMC
The typical repair costs for addressing the P103E code on a GMC vehicle can range from $200 to $500, including parts and labor. However, it's important to note that specific diagnosis time and labor rates can vary depending on factors such as the vehicle's make and model, the location of the repair shop, and the engine type. Auto repair shops usually charge between $80 and $150 per hour for labor, with rates potentially higher at dealerships or in metropolitan areas, and lower at independent shops. For a more accurate estimate, it's recommended to inquire about local rates.
Need more information about the P103E GMC code?
Need more information on how to fix the P103E GMC code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P103E GMC code diagnosed by a professional: Find a repair shop in your area
Information for Specific GMC Models
- P103E 2014 GMC Sierra — Auxiliary Coolant Pump Control Signal Message Counter Incorrect
- P103E 2015 GMC Sierra — Auxiliary Coolant Pump Control Signal Message Counter Incorrect
- P103E 2016 GMC Sierra — Auxiliary Coolant Pump Control Signal Message Counter Incorrect
- P103E 2017 GMC Sierra — Auxiliary Coolant Pump Control Signal Message Counter Incorrect
- P103E 2018 GMC Sierra — Auxiliary Coolant Pump Control Signal Message Counter Incorrect
Frequently Asked Questions about P103E GMC Code
1. What are the common symptoms of OBDII code P103E in a GMC vehicle?
- Common symptoms include poor engine performance, overheating, and the Check Engine Light illuminating on the dashboard.
2. What could cause the OBDII code P103E to trigger in a GMC vehicle?
- The code P103E is typically triggered by a malfunction in the auxiliary coolant pump control system, such as a faulty pump or wiring issue.
3. How can I diagnose the OBDII code P103E in my GMC vehicle?
- Diagnosing the code P103E involves using a scan tool to read the code and then inspecting the auxiliary coolant pump, wiring, and connectors for any visible damage.
4. Can I still drive my GMC with the OBDII code P103E present?
- It is not recommended to continue driving your GMC with the code P103E triggered, as it can lead to engine overheating and potential damage.
5. How can I repair the OBDII code P103E in my GMC vehicle?
- Repairing the code P103E involves replacing the faulty auxiliary coolant pump, repairing any damaged wiring, and clearing the code with a scan tool.
6. Are there any DIY tips for fixing the OBDII code P103E in a GMC?
- While some basic troubleshooting like checking the pump connections can be done DIY, it is recommended to have a professional diagnose and repair the issue to ensure proper functionality.
7. What is the importance of the auxiliary coolant pump in a GMC vehicle?
- The auxiliary coolant pump helps regulate the engine's temperature by circulating coolant through the system, preventing overheating and ensuring optimal engine performance.
8. How long does it typically take to repair the OBDII code P103E in a GMC?
- The repair time for the code P103E can vary depending on the extent of the issue, but it usually takes a few hours to diagnose and replace the faulty components.
9. Is the OBDII code P103E a common issue in GMC vehicles?
- While the code P103E may not be as common as other OBDII codes, it can still occur in GMC vehicles with auxiliary coolant pump control systems.
10. Can ignoring the OBDII code P103E lead to more severe engine problems?
- Ignoring the code P103E can potentially lead to engine overheating, which can cause significant damage to the engine components if not addressed promptly.
Discuss the causes and fixes for P103E GMC OBDII Code
Code P103E GMC comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.