P0C28
Electric/Auxiliary Transmission Fluid Pump A Motor Current High
P0C28 is an OBD-II diagnostic trouble code meaning: Electric/Auxiliary Transmission Fluid Pump A Motor Current High. Common causes: pump motor malfunction, problems with wiring or connections. Estimated repair cost: $56–167.
Symptoms
- Check Engine light comes on
- Gear shifting problems
- Noise or humming noise from the transmission fluid pump
- Reduced transmission performance
- Activating transmission emergency mode
Causes
- Pump motor malfunction
- Problems with wiring or connections
- Faulty relay or pump control unit
- Mechanical resistance in the pump
- Low or contaminated transmission fluid
How to Fix
- Check the level and condition of the transmission fluid
- Diagnose the pump motor for resistance and current
- Check the integrity of wiring and connections
- Test the relay and pump control unit
- If necessary, replace the transmission fluid pump
Related codes
Error P0C28 by Vehicle Brand
FAQ
What does the P0C28 code mean?
P0C28 is an OBD-II diagnostic trouble code that indicates: Electric/Auxiliary Transmission Fluid Pump A Motor Current High
What causes a P0C28 error code?
The most common causes of P0C28 include: Pump motor malfunction; Problems with wiring or connections; Faulty relay or pump control unit; Mechanical resistance in the pump.
How do I fix a P0C28 diagnostic trouble code?
To fix P0C28: Check the level and condition of the transmission fluid. Diagnose the pump motor for resistance and current. Check the integrity of wiring and connections. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0C28?
Limited driving only, diagnose soon
How much does it cost to fix P0C28?
The estimated repair cost for P0C28 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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