P14A7 Code - Charge Air Cooler Cooling Electric Water Pump
Quick Answer
The Charge Air Cooler (CAC) Cooling Electric Water Pump is an electric pump that circulates coolant through the intercooler system to lower the temperature of the air entering the engine. Common causes include Charge Air Cooler (CAC) coolant leakage, Charge Air Cooler coolant is mixed in air, Protection control is activated during pump idle running. 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
- P14A7 indicates Charge Air Cooler Cooling Electric Water Pump.
- Common causes
- Common causes include Charge Air Cooler (CAC) coolant leakage, Charge Air Cooler coolant is mixed in air, Protection control is activated during pump idle running.
- 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 P14A7 Description
What are the Possible Causes of the DTC P14A7?
- Charge Air Cooler (CAC) coolant leakage
- Charge Air Cooler coolant is mixed in air
- Protection control is activated during pump idle running
- Faulty Charge Air Cooler Cooling Electric Water Pump
How to Fix the DTC P14A7?
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 P14A7 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 P14A7 code?
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Need Help with the Code?
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Information for Specific Makes
- P14A7 BMW — Diesel Particulate Filter System Flow Resistance Too High
- P14A7 Infiniti — Charge Air Cooler Cooling Electric Water Pump
- P14A7 MINI — Diesel Particulate Filter System Flow Resistance Too High
- P14A7 Nissan — Charge Air Cooler Cooling Electric Water Pump
Frequently Asked Questions about P14A7 Code
1. What are common symptoms of OBDII code P14A7 (Diesel Particulate Filter System Flow Resistance Too High)?
- Common symptoms include reduced engine performance, decreased fuel efficiency, black smoke from the exhaust, and the illumination of the check engine light.
2. What are possible causes of OBDII code P14A7?
- Possible causes include a clogged diesel particulate filter (DPF), faulty DPF pressure sensor, exhaust leaks, or issues with the DPF regeneration system.
3. How can I diagnose the cause of OBDII code P14A7?
- Diagnose the code by performing a visual inspection of the DPF system, checking for any exhaust leaks, testing the DPF pressure sensor, and monitoring the DPF regeneration process.
4. Can driving habits contribute to triggering code P14A7?
- Yes, frequent short trips without sufficient highway driving to allow for DPF regeneration can contribute to the buildup of soot and trigger the code.
5. What are some repair tips for resolving OBDII code P14A7?
- Repair tips include performing a forced DPF regeneration, cleaning or replacing the DPF, checking and replacing the DPF pressure sensor if necessary, and fixing any exhaust leaks.
6. Is it safe to continue driving with OBDII code P14A7 active?
- It is not recommended to continue driving with the code active, as it can lead to further damage to the DPF system and potentially cause more serious engine issues.
7. How often should I perform maintenance on the diesel particulate filter to prevent code P14A7 from occurring?
- Regular maintenance of the DPF, including driving at highway speeds to allow for regeneration, cleaning or replacing the DPF as needed, and ensuring proper engine performance, can help prevent the code from occurring.
8. Can using low-quality diesel fuel contribute to triggering code P14A7?
- Yes, using low-quality diesel fuel with high sulfur content can contribute to the buildup of soot in the DPF, leading to flow resistance issues and triggering the code.
9. Are there any software updates or recalls related to OBDII code P14A7?
- It is recommended to check with your vehicle manufacturer or authorized dealership for any software updates or recalls related to the DPF system that may help address the code.
10. How can I reset the check engine light after resolving OBDII code P14A7?
- After resolving the underlying issue causing the code, you can reset the check engine light using an OBDII scanner or disconnecting the vehicle's battery for a few minutes.
Discuss the causes and fixes for P14A7 OBDII Code
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