P179A Chevrolet Code - Auxiliary Transmission Fluid Pump Overspeed
Quick Answer
This diagnostic monitors the output speed of the high voltage motor. Common causes include Faulty Auxiliary Transmission Fluid Pump, Auxiliary Transmission Fluid Pump harness is open or shorted, Auxiliary Transmission Fluid 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
- P179A Chevrolet indicates Auxiliary Transmission Fluid Pump Overspeed.
- Common causes
- Common causes include Faulty Auxiliary Transmission Fluid Pump, Auxiliary Transmission Fluid Pump harness is open or shorted, Auxiliary Transmission Fluid 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 P179A Chevrolet Description
What are the Possible Causes of the DTC P179A Chevrolet?
- Faulty Auxiliary Transmission Fluid Pump
- Auxiliary Transmission Fluid Pump harness is open or shorted
- Auxiliary Transmission Fluid Pump circuit poor electrical connection
How to Fix the DTC P179A Chevrolet?
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 P179A Chevrolet 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 P179A Chevrolet Code
1. What does the P179A code mean on a Chevrolet?
The P179A code indicates "Auxiliary Transmission Fluid Pump Overspeed," meaning the auxiliary pump is running faster than expected.
2. What are the common symptoms of code P179A?
Symptoms may include erratic shifting, transmission overheating, illuminated check engine light, and reduced vehicle performance.
3. What causes the P179A code to appear?
This code can be caused by a faulty auxiliary transmission fluid pump, wiring issues, a bad pump control module, or incorrect sensor readings.
4. Can I drive my Chevrolet with the P179A code?
Driving with this code is not recommended, as it may lead to further transmission damage or poor vehicle performance.
5. How do I diagnose the P179A code?
Diagnosis typically involves checking the pump's electrical connections, testing the pump's operation, and scanning for related transmission control module faults.
6. How much does it cost to fix the P179A code?
Repair costs can vary widely but may range from $200 to $800 depending on whether the pump or wiring needs replacement.
7. Can a low transmission fluid level trigger the P179A code?
Low or dirty transmission fluid can contribute to auxiliary pump issues, so fluid levels should be checked as part of troubleshooting.
8. What tools are needed to fix the P179A code?
A professional-grade OBDII scanner, multimeter, and basic tools for inspecting and replacing the auxiliary pump or wiring are typically required.
9. Does the P179A code indicate a serious problem?
While not immediately catastrophic, ignoring this code can lead to severe transmission issues if the pump fails completely.
10. Can the P179A code be cleared without repairs?
The code may clear temporarily, but the underlying issue will likely persist, causing the code to return. Proper repairs are necessary.
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