P103E 2016 Chevrolet Silverado Code - Auxiliary Coolant Pump Control Signal Message Counter Incorrect
Quick Answer
The P103E diagnostic trouble code (DTC) for a 2016 Chevrolet Silverado indicates that the Auxiliary Coolant Pump Control Signal Message Counter is Incorrect. Common causes include Faulty auxiliary coolant pump control module, Wiring or connection issues between the ECM and auxiliary coolant pump control module, ECM software malfunction. 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 2016 Chevrolet Silverado indicates Auxiliary Coolant Pump Control Signal Message Counter Incorrect.
- Common causes
- Common causes include Faulty auxiliary coolant pump control module, Wiring or connection issues between the ECM and auxiliary coolant pump control module, ECM software malfunction.
- 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 2016 Chevrolet Silverado Description
The P103E diagnostic trouble code (DTC) for a 2016 Chevrolet Silverado indicates that the Auxiliary Coolant Pump Control Signal Message Counter is Incorrect. This code typically points to a communication issue between the engine control module (ECM) and the auxiliary coolant pump control module. The auxiliary coolant pump is responsible for circulating coolant through the engine to help regulate its temperature, especially during idle or low-speed driving conditions. When the ECM detects that the message counter from the auxiliary coolant pump control module is incorrect, it means that the communication between these two components is not functioning as expected.
Common Causes of P103E 2016 Chevrolet Silverado
- Faulty auxiliary coolant pump control module
- Wiring or connection issues between the ECM and auxiliary coolant pump control module
- ECM software malfunction
- Coolant pump failure
- Electrical system issues
Symptoms of P103E 2016 Chevrolet Silverado
- Engine overheating
- Reduced engine performance
- Illuminated check engine light
- Poor fuel efficiency
- Rough idling or stalling
How to Fix P103E 2016 Chevrolet Silverado
- Begin by conducting a visual inspection of the auxiliary coolant pump control module, wiring, and connections to check for any visible damage or loose connections.
- Use a diagnostic scan tool to retrieve the specific error codes and data related to the P103E code.
- Test the auxiliary coolant pump control module and the ECM for proper functionality using a multimeter or oscilloscope.
- If necessary, replace the faulty auxiliary coolant pump control module or repair any damaged wiring or connections.
- Clear the DTCs from the ECM's memory and perform a test drive to ensure that the issue has been resolved.
Cost to Fix P103E 2016 Chevrolet Silverado
The typical repair costs for addressing a P103E code on a 2016 Chevrolet Silverado can vary depending on the specific cause of the issue. Replacement of the auxiliary coolant pump control module or repair of wiring/connectivity problems can range from $200 to $500, including parts and labor. Additional diagnostic time may be required, which can add to the overall cost. It is recommended to consult with a qualified mechanic or dealership to obtain an accurate estimate based on the specific circumstances of the vehicle. Labor rates at auto repair shops typically range from $80 to $150 per hour, but may vary based on location and other factors.
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Frequently Asked Questions about P103E 2016 Chevrolet Silverado Code
1. What does the OBDII code P103E mean on a 2016 Chevrolet Silverado?
P103E indicates an issue with the auxiliary coolant pump control signal, specifically that the message counter is incorrect or not functioning as expected.
2. What are the common symptoms of code P103E in a 2016 Chevrolet Silverado?
Symptoms may include an illuminated check engine light, reduced engine cooling performance, or overheating during heavy loads or towing.
3. What causes code P103E in a 2016 Chevrolet Silverado?
Common causes include a faulty auxiliary coolant pump, damaged wiring or connectors in the pump circuit, or a malfunction in the engine control module (ECM).
4. Can I drive my Silverado with a P103E code?
While the vehicle may still be drivable, ignoring this code can lead to overheating issues, potentially causing engine damage. It's best to address the problem promptly.
5. How is code P103E diagnosed on a 2016 Chevrolet Silverado?
A technician will inspect the auxiliary coolant pump, check the wiring and connectors for damage, and use a scan tool to monitor the control signal and message counter data.
6. How do you fix code P103E on a 2016 Chevrolet Silverado?
Repairs may involve replacing the auxiliary coolant pump, repairing damaged wiring or connectors, or updating/reprogramming the engine control module (ECM).
7. What tools are needed to diagnose and fix code P103E?
A diagnostic scan tool, a multimeter for checking electrical circuits, and possibly a wiring diagram for the auxiliary coolant pump system are essential tools.
8. Does code P103E always mean the auxiliary coolant pump is bad?
No, the issue could also stem from wiring faults, connector issues, or ECM malfunctions, so proper diagnosis is necessary before replacing parts.
9. How much does it cost to fix a P103E code on a 2016 Chevrolet Silverado?
Repair costs can vary but typically range from $150 to $500, depending on whether the pump, wiring, or ECM requires repair or replacement.
10. Can a software update fix the P103E code on a Silverado?
In some cases, a software update for the ECM may resolve the issue if the problem is related to incorrect signal processing or message counter errors.
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