P14A0 2018 GMC Sierra Code - Charge Air Cooler Coolant Pump Status 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 Charge Air Cooler Coolant Pump, Charge Air Cooler Coolant Pump harness is open or shorted, Charge Air Cooler Coolant Pump 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
- P14A0 2018 GMC Sierra indicates Charge Air Cooler Coolant Pump Status Signal Message Counter Incorrect.
- Common causes
- Common causes include Faulty Charge Air Cooler Coolant Pump, Charge Air Cooler Coolant Pump harness is open or shorted, Charge Air Cooler Coolant Pump 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 P14A0 2018 GMC Sierra Description
What are the Possible Causes of the DTC P14A0 2018 GMC Sierra?
- Faulty Charge Air Cooler Coolant Pump
- Charge Air Cooler Coolant Pump harness is open or shorted
- Charge Air Cooler Coolant Pump circuit poor electrical connection
How to Fix the DTC P14A0 2018 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 P14A0 2018 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.
Need more information about the P14A0 2018 GMC Sierra code?
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Frequently Asked Questions about P14A0 2018 GMC Sierra Code
1. What does the OBDII code P14A0 mean on a 2018 GMC Sierra?
P14A0 indicates an issue with the Charge Air Cooler Coolant Pump Status Signal Message Counter, meaning the Engine Control Module (ECM) is detecting irregularities in the signal or communication from the pump.
2. What are the common symptoms of P14A0 on a 2018 GMC Sierra?
Symptoms may include reduced engine performance, decreased fuel efficiency, illuminated check engine light, and potential overheating of the charge air cooler system.
3. What causes the P14A0 code to appear on a 2018 GMC Sierra?
Common causes include a faulty charge air cooler coolant pump, wiring or connector issues, a malfunctioning signal sensor, or a communication error within the ECM.
4. Can I drive my 2018 GMC Sierra with the P14A0 code?
While the vehicle may still be drivable, it’s not recommended, as ignoring the issue could lead to reduced engine performance or further damage to the charge air cooler system.
5. How is the P14A0 code diagnosed on a 2018 GMC Sierra?
A mechanic will typically use a scan tool to verify the code, inspect the charge air cooler coolant pump and wiring, and test the communication signals between the pump and ECM.
6. What repairs are needed to fix the P14A0 code on a 2018 GMC Sierra?
Repairs may include replacing the charge air cooler coolant pump, repairing or replacing damaged wiring or connectors, or reprogramming or replacing the ECM if necessary.
7. How much does it cost to fix the P14A0 code on a 2018 GMC Sierra?
Repair costs can vary, but replacing the charge air cooler coolant pump typically ranges from $300-$600, including parts and labor, depending on your location and shop rates.
8. Can a faulty charge air cooler coolant pump cause other problems?
Yes, a faulty pump can lead to insufficient cooling of the intake air, which can reduce engine efficiency, increase emissions, and potentially cause engine overheating.
9. Is the P14A0 code common in 2018 GMC Sierras?
While not extremely common, it can occur, especially in vehicles with higher mileage or those that have experienced wear and tear on the cooling system components.
10. How can I prevent the P14A0 code from occurring again?
Regular maintenance of the cooling system, including inspecting and replacing coolant pump components as needed, and promptly addressing any warning lights or performance issues, can help prevent recurrence.
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