P103D 2016 Chevrolet Silverado Code - Engine Coolant Pump Control Signal Message Counter Incorrect
Quick Answer
The P103D diagnostic trouble code for a 2016 Chevrolet Silverado indicates that the Engine Coolant Pump Control Signal Message Counter is Incorrect. Common causes include Faulty engine coolant pump control module: A malfunction in the control module responsible for regulating the engine coolant pump can trigger this code, Wiring issues: Corrosion, damaged wires, or poor connections between the ECM and the coolant pump control module can disrupt communication, ECM software issue: An issue with the software programming of the engine control module may cause the incorrect message counter. 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
- P103D 2016 Chevrolet Silverado indicates Engine Coolant Pump Control Signal Message Counter Incorrect.
- Common causes
- Common causes include Faulty engine coolant pump control module: A malfunction in the control module responsible for regulating the engine coolant pump can trigger this code, Wiring issues: Corrosion, damaged wires, or poor connections between the ECM and the coolant pump control module can disrupt communication, ECM software issue: An issue with the software programming of the engine control module may cause the incorrect message counter.
- 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 P103D 2016 Chevrolet Silverado Description
The P103D diagnostic trouble code for a 2016 Chevrolet Silverado indicates that the Engine Coolant Pump Control Signal Message Counter is Incorrect. This code is typically related to a communication issue between the engine control module (ECM) and the engine coolant pump control module. The engine coolant pump plays a crucial role in regulating the temperature of the engine by circulating coolant through the engine block and radiator. The control module is responsible for controlling the operation of the coolant pump based on input from various sensors.
Common Causes of P103D 2016 Chevrolet Silverado
- Faulty engine coolant pump control module: A malfunction in the control module responsible for regulating the engine coolant pump can trigger this code.
- Wiring issues: Corrosion, damaged wires, or poor connections between the ECM and the coolant pump control module can disrupt communication.
- ECM software issue: An issue with the software programming of the engine control module may cause the incorrect message counter.
- Sensor malfunction: A faulty coolant temperature sensor or other related sensors can lead to communication errors between modules.
Symptoms of P103D 2016 Chevrolet Silverado
- Engine overheating: One of the most common symptoms associated with this code is the engine overheating. This can be caused by the coolant pump not functioning properly due to communication issues.
- Poor engine performance: The engine may exhibit reduced performance, such as decreased power output or rough idling, as a result of inadequate cooling.
- Check Engine Light: The Check Engine Light may illuminate on the dashboard to indicate a problem with the engine coolant pump control signal.
- Increased fuel consumption: Inefficient cooling can lead to increased fuel consumption as the engine works harder to maintain optimal operating temperatures.
How to Fix P103D 2016 Chevrolet Silverado
- Diagnostic scan: Begin by using a diagnostic scan tool to retrieve the specific trouble code and identify the root cause of the issue.
- Check wiring and connections: Inspect the wiring harness and connectors between the ECM and the coolant pump control module for any signs of damage or corrosion. Repair or replace as needed.
- Test coolant pump control module: Test the coolant pump control module to ensure it is functioning correctly. Replace if necessary.
- Check sensors: Verify the operation of the coolant temperature sensor and other relevant sensors to rule out sensor malfunctions.
- Clear codes and test drive: After completing repairs, clear the trouble codes from the ECM memory and test drive the vehicle to confirm that the issue has been resolved.
Cost to Fix P103D 2016 Chevrolet Silverado
The cost of repairing a P103D code on a 2016 Chevrolet Silverado can vary depending on the specific cause of the issue. Typically, the cost of parts such as a new coolant pump control module or sensors can range from $100 to $500. Labor costs at an auto repair shop can add an additional $100 to $300, bringing the total repair cost to around $200 to $800. It's important to note that labor rates can vary between different repair shops and locations, so it's advisable to obtain a written estimate before proceeding with the repair.
Need more information about the P103D 2016 Chevrolet Silverado code?
Need more information on how to fix the P103D 2016 Chevrolet Silverado code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P103D 2016 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P103D 2016 Chevrolet Silverado Code
1. What does the OBDII code P103D mean on a 2016 Chevrolet Silverado?
P103D indicates an issue with the Engine Coolant Pump Control Signal Message Counter, meaning there’s a communication error between the engine control module (ECM) and the coolant pump.
2. What are the common symptoms of code P103D in a Silverado?
Symptoms may include engine overheating, illuminated check engine light, erratic cooling system performance, or reduced engine power in severe cases.
3. What causes code P103D to appear in my Silverado?
Causes can include a faulty engine coolant pump, wiring or connector issues, a software glitch in the ECM, or a communication error between the modules.
4. Can I drive my 2016 Chevrolet Silverado with a P103D code?
It’s not recommended to drive the truck for long distances with this code, as engine overheating could cause severe damage.
5. How is the P103D code diagnosed?
A technician will use a diagnostic scanner to check for stored codes, inspect the wiring and connectors for damage, and test the coolant pump’s operation and communication signals.
6. What repairs are needed to fix a P103D code?
Repairs may include replacing the engine coolant pump, repairing or replacing damaged wiring or connectors, or updating the engine control module software.
7. How much does it cost to fix a P103D code on a 2016 Silverado?
Repair costs can vary, but replacing the coolant pump may cost $400–$800, including parts and labor. Wiring repairs or software updates may cost less.
8. Can a P103D code be cleared without repairs?
Clearing the code without addressing the underlying issue will only result in it returning. Proper diagnosis and repair are necessary to resolve the problem.
9. Could a weak battery cause the P103D code on my Silverado?
Yes, a weak or failing battery can cause communication errors between modules, potentially triggering this code.
10. How can I prevent the P103D code from appearing again?
Regularly inspect the cooling system components, ensure the battery is in good condition, and keep the ECM software up to date.
Discuss the causes and fixes for P103D 2016 Chevrolet Silverado OBDII Code
Code P103D 2016 Chevrolet Silverado 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.