P2798
Electric/Auxiliary Transmission Fluid Pump A Control Circuit Low
P2798 is an OBD-II diagnostic trouble code meaning: Electric/Auxiliary Transmission Fluid Pump A Control Circuit Low. Common causes: open or short circuit in the pump control circuit, transmission fluid auxiliary pump malfunction. Estimated repair cost: $50–167.
Symptoms
- Check Engine Light Is On
- Hard gear shifts
- The gearbox goes into emergency mode
- Problems starting the engine
- Extended gear shift intervals
Causes
- Open or short circuit in the pump control circuit
- Transmission fluid auxiliary pump malfunction
- Pump relay or fuse problems
- Corrosion or poor contact in connectors
- Transmission control module (TCM) malfunction
How to Fix
- Check the pump fuse and relay
- Diagnose the control circuit for opens and short circuits
- Check the pump connectors and connections
- Test resistance and voltage at the pump
- If necessary, replace the transmission fluid auxiliary pump.
Related codes
Error P2798 by Vehicle Brand
FAQ
What does the P2798 code mean?
P2798 is an OBD-II diagnostic trouble code that indicates: Electric/Auxiliary Transmission Fluid Pump A Control Circuit Low
What causes a P2798 error code?
The most common causes of P2798 include: Open or short circuit in the pump control circuit; Transmission fluid auxiliary pump malfunction; Pump relay or fuse problems; Corrosion or poor contact in connectors.
How do I fix a P2798 diagnostic trouble code?
To fix P2798: Check the pump fuse and relay. Diagnose the control circuit for opens and short circuits. Check the pump connectors and connections. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2798?
Yes, but get it checked soon
How much does it cost to fix P2798?
The estimated repair cost for P2798 is $50–167. Actual cost depends on your vehicle, location, and labor rates.
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