P179A GMC 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 GMC 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 GMC Description
What are the Possible Causes of the DTC P179A GMC?
- 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 GMC?
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 GMC 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 GMC Code
1. What are common symptoms of OBDII code P179A in a GMC related to the Auxiliary Transmission Fluid Pump Overspeed issue?
The common symptoms include harsh shifting, transmission slipping, reduced fuel efficiency, and illuminated check engine light.
2. What could be the possible causes of OBDII code P179A GMC Auxiliary Transmission Fluid Pump Overspeed?
The code P179A could be triggered by issues such as a faulty auxiliary transmission fluid pump, low transmission fluid levels, electrical problems, or a malfunctioning transmission control module.
3. How serious is the OBDII code P179A GMC Auxiliary Transmission Fluid Pump Overspeed issue?
While the vehicle may still be operable with this issue, it is important to address it promptly to prevent potential damage to the transmission system and ensure optimal performance.
4. Can I continue driving my GMC with the OBDII code P179A present?
It is not recommended to continue driving the vehicle with the code P179A active, as it could lead to further transmission problems if left unresolved.
5. How can I diagnose the OBDII code P179A GMC Auxiliary Transmission Fluid Pump Overspeed?
Diagnosis typically involves using a professional OBDII scanner to retrieve the specific fault code and then conducting a thorough inspection of the transmission fluid pump, fluid levels, and related components.
6. What are some repair tips for addressing the OBDII code P179A GMC Auxiliary Transmission Fluid Pump Overspeed?
Repair tips may include checking and replacing the auxiliary transmission fluid pump, ensuring proper fluid levels, inspecting electrical connections, and resetting the fault code after repairs are completed.
7. Can I reset the OBDII code P179A GMC Auxiliary Transmission Fluid Pump Overspeed myself?
Yes, you can attempt to clear the code using an OBDII scanner, but it is important to address the underlying issue causing the code to prevent it from reoccurring.
8. How much does it typically cost to repair the OBDII code P179A GMC Auxiliary Transmission Fluid Pump Overspeed?
The cost of repairs can vary depending on the extent of the issue, the parts needed, and labor costs. It is recommended to consult a professional mechanic for an accurate estimate.
9. Are there any preventative measures to avoid the OBDII code P179A GMC Auxiliary Transmission Fluid Pump Overspeed issue?
Regularly servicing the transmission system, checking fluid levels, and addressing any warning signs promptly can help prevent issues leading to the code P179A.
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