P103E 2014 GMC Sierra Code - Auxiliary Coolant Pump Control Signal Message Counter Incorrect
Quick Answer
Control modules connected to the serial data circuits monitor the communication during normal vehicle operation. Common causes include Faulty Auxiliary Coolant Pump Control Module, Auxiliary Coolant Pump Control Module harness is open or shorted, Auxiliary Coolant Pump Control Module circuit poor electrical connection. 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 Control Module, Auxiliary Coolant Pump Control Module harness is open or shorted, Auxiliary Coolant Pump Control Module circuit poor electrical connection.
- 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.
Code P103E 2014 GMC Sierra Description
What are the Possible Causes of the DTC P103E 2014 GMC Sierra?
- Faulty Auxiliary Coolant Pump Control Module
- Auxiliary Coolant Pump Control Module harness is open or shorted
- Auxiliary Coolant Pump Control Module circuit poor electrical connection
How to Fix the DTC P103E 2014 GMC Sierra?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P103E 2014 GMC Sierra code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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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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