P0C22 Code - Auxiliary Transmission Fluid Pump Phase U-V-W Circuit High
Quick Answer
The diagnostic trouble code P0C22 refers to the Auxiliary Transmission Fluid Pump Phase U-V-W Circuit High. Common causes include Faulty Auxiliary Transmission Fluid Pump: A malfunctioning auxiliary pump can cause high voltage conditions in the U-V-W circuit, Wiring Issues: Damaged or corroded wiring connections can also lead to high voltage in the circuit, Faulty Transmission Control Module (TCM): A malfunctioning TCM can send incorrect signals to the auxiliary pump, causing high voltage conditions. 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
- P0C22 indicates Auxiliary Transmission Fluid Pump Phase U-V-W Circuit High.
- Common causes
- Common causes include Faulty Auxiliary Transmission Fluid Pump: A malfunctioning auxiliary pump can cause high voltage conditions in the U-V-W circuit, Wiring Issues: Damaged or corroded wiring connections can also lead to high voltage in the circuit, Faulty Transmission Control Module (TCM): A malfunctioning TCM can send incorrect signals to the auxiliary pump, causing high voltage conditions.
- 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.
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Code P0C22 Description
The diagnostic trouble code P0C22 refers to the Auxiliary Transmission Fluid Pump Phase U-V-W Circuit High. This code indicates that there is a high voltage condition detected in the circuit responsible for controlling the auxiliary transmission fluid pump phases U, V, and W. The auxiliary transmission fluid pump plays a crucial role in maintaining proper fluid pressure and ensuring smooth operation of the transmission system.
Common Causes of P0C22
- Faulty Auxiliary Transmission Fluid Pump: A malfunctioning auxiliary pump can cause high voltage conditions in the U-V-W circuit.
- Wiring Issues: Damaged or corroded wiring connections can also lead to high voltage in the circuit.
- Faulty Transmission Control Module (TCM): A malfunctioning TCM can send incorrect signals to the auxiliary pump, causing high voltage conditions.
- Electrical Short: An electrical short in the circuit can also trigger this code.
Symptoms of P0C22
- Illuminated Check Engine Light: The most common symptom associated with this code is the illumination of the check engine light on the vehicle's dashboard.
- Transmission Slipping: A high voltage condition in the auxiliary transmission fluid pump circuit can cause the transmission to slip, resulting in poor acceleration and erratic shifting.
- Harsh Shifting: The transmission may exhibit harsh or delayed shifting when the auxiliary pump is not functioning correctly.
- Overheating: In some cases, the transmission may overheat due to the increased workload placed on the auxiliary pump.
How to Fix P0C22
- Diagnose the Issue: Use a diagnostic scanner to retrieve the trouble codes and perform a thorough inspection of the auxiliary transmission fluid pump circuit.
- Inspect Wiring Connections: Check the wiring connections for any signs of damage or corrosion and repair or replace as needed.
- Test Auxiliary Pump: Test the auxiliary pump to ensure it is functioning correctly and replace if necessary.
- Check TCM: Verify the functionality of the TCM and replace if it is found to be faulty.
- Clear Codes: Once the repairs are completed, clear the trouble codes and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P0C22
The cost of repairing the Auxiliary Transmission Fluid Pump Phase U-V-W Circuit High issue can vary depending on the underlying cause of the problem and the specific components that need to be replaced. In general, the cost of parts for this repair can range from $200 to $500, with labor costs typically adding another $100 to $300. However, it's important to note that labor rates at auto repair shops can vary widely, with hourly rates typically ranging from $80 to $150. Additionally, the cost of diagnostic time and any additional repairs that may be needed can also impact the overall cost of the repair. It's recommended to consult with a trusted mechanic or auto repair shop to get a more accurate estimate based on your specific vehicle make and model.
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