P103E 2014 GMC Sierra Code - Auxiliary Coolant Pump Control Signal Message Counter Incorrect
Quick Answer
The diagnostic trouble code P103E for a 2014 GMC Sierra indicates that there is an issue with the Auxiliary Coolant Pump Control Signal Message Counter being incorrect. Common causes include Faulty auxiliary coolant pump, Malfunctioning coolant temperature sensor, Wiring issues in the coolant pump 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
- P103E 2014 GMC Sierra indicates Auxiliary Coolant Pump Control Signal Message Counter Incorrect.
- Common causes
- Common causes include Faulty auxiliary coolant pump, Malfunctioning coolant temperature sensor, Wiring issues in the coolant pump 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 P103E 2014 GMC Sierra Description
The diagnostic trouble code P103E for a 2014 GMC Sierra indicates that there is an issue with the Auxiliary Coolant Pump Control Signal Message Counter being incorrect. The auxiliary coolant pump is responsible for circulating coolant through the engine to help regulate its temperature. When the control signal message counter is incorrect, it means that the signal being sent to the auxiliary coolant pump is not matching the expected count, which can lead to improper cooling of the engine.
Common Causes of P103E 2014 GMC Sierra
- Faulty auxiliary coolant pump
- Malfunctioning coolant temperature sensor
- Wiring issues in the coolant pump circuit
- Defective control module
- Software glitch in the vehicle's computer system
Symptoms of P103E 2014 GMC Sierra
- Engine overheating
- Reduced fuel efficiency
- Illumination of the check engine light
- Engine running rough or stalling
- Increased emissions
How to Fix P103E 2014 GMC Sierra
- Begin by conducting a thorough inspection of the auxiliary coolant pump, sensor, and wiring to identify any visible damage or defects.
- Use a diagnostic scanner to retrieve the specific error codes and data related to the coolant pump control signal message counter.
- Test the coolant pump and sensor for proper functionality using a multimeter or oscilloscope.
- If necessary, replace the faulty coolant pump, sensor, or control module with new components.
- Clear the error codes from the vehicle's computer system and perform a test drive to ensure the issue has been resolved.
Cost to Fix P103E 2014 GMC Sierra
The typical repair costs for addressing the P103E code on a 2014 GMC Sierra can vary depending on the specific cause of the issue. In general, replacing a faulty auxiliary coolant pump can cost between $200 and $500, while a coolant temperature sensor may range from $50 to $150. Labor costs can add an additional $100 to $300, depending on the shop's hourly rates and the complexity of the repair. It's recommended to consult with a qualified mechanic or dealership for a more accurate estimate based on your vehicle's specific needs and location.
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Frequently Asked Questions about P103E 2014 GMC Sierra Code
1. What does code P103E mean on a 2014 GMC Sierra?
Code P103E indicates an issue with the Auxiliary Coolant Pump Control Signal Message Counter being incorrect, potentially due to a communication or electrical fault.
2. What are the common symptoms of code P103E in a 2014 GMC Sierra?
Symptoms may include the check engine light turning on, reduced engine cooling performance, or overheating in some cases.
3. What causes the P103E code to appear?
The code can be triggered by a faulty auxiliary coolant pump, wiring or connector issues, or a malfunction in the control module responsible for the pump.
4. Can I drive my 2014 GMC Sierra with the P103E code active?
It's not recommended to drive with this code for extended periods, as poor auxiliary coolant pump performance could lead to engine overheating.
5. How do I diagnose a P103E code on my 2014 GMC Sierra?
Diagnosis involves checking the auxiliary coolant pump, inspecting the wiring and connectors, and using a scan tool to monitor the control signal communication.
6. How can I fix the P103E code on my GMC Sierra?
Repairs may involve replacing the auxiliary coolant pump, repairing damaged wiring or connectors, or reprogramming the relevant control module.
7. Does the P103E code always mean the auxiliary coolant pump is bad?
No, the issue could also stem from wiring problems, a faulty control module, or incorrect communication signals.
8. How much does it cost to fix the P103E code on a 2014 GMC Sierra?
Repair costs vary but may range from $100 to $500 depending on whether the pump, wiring, or control module needs repair or replacement.
9. Can a low coolant level cause the P103E code?
Low coolant levels are not a direct cause of this code but should be checked, as they can contribute to overheating and other cooling system issues.
10. Do I need special tools to fix the P103E code?
Yes, diagnosing and repairing this code typically requires an advanced scan tool and possibly a multimeter to check electrical connections.
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