Auxiliary Transmission Fluid Pump Motor Control Circuit Low
The P2797 code means the vehicle's onboard diagnostic system has detected: Auxiliary Transmission Fluid Pump Motor Control Circuit Low. This is a moderate severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- Advanced
- Estimated cost
- $400 - $1,200 (pump motor replacement)
Read and clear transmission codes. Many trans codes are caused by low or burnt fluid -- check level and color before assuming the worst.
Basic scanners only read engine codes. This reads transmission, ABS, and airbag too.
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Common Symptoms
- Check Engine Light illuminated
- Transmission overheating at idle or low speeds
- Harsh shifting after extended idle periods
- Delayed engagement when starting from stop
- Transmission fluid temperature warning
Probable Causes (Ranked by Likelihood)
- Failed auxiliary transmission fluid pump motor High
- Wiring fault in pump motor circuit High
- Pump motor relay or fuse failure Medium
- Auxiliary pump internal mechanical failure Medium
- TCM driver circuit failure Low
Frequently Asked Questions
What does P2797 mean?
P2797 indicates: auxiliary transmission fluid pump motor control circuit low. This code is set by the transmission control module when it detects an issue with this specific circuit or component.
Can I drive with P2797?
Yes, short distances are acceptable. The vehicle may be drivable but schedule repair promptly.
How much does it cost to fix P2797?
Estimated repair costs are $400 - $1,200. The specific cost depends on whether the fix involves a sensor replacement, wiring repair, or more extensive transmission work.
Mechanics Guide Step-by-step diagnosis
Step-by-Step Diagnostic Procedure
-
Scan for codes and confirm P2797 with freeze frame data
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Check transmission fluid level and condition
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Inspect wiring and connectors for the affected circuit
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Test the specific sensor or actuator identified in the code description
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Check for related technical service bulletins for your vehicle
Sources 1
This page is built from documented references. Verify against your own service info before repair work.
- SAE J2012Diagnostic Trouble Code Definitions (defines the generic OBD-II code ranges)
Commonly Affected Vehicles
- 2012-2020 Ford F-150 10R80 10-Speed Auto
- 2014-2022 Chevrolet Silverado 10L80 10-Speed Auto
- 2011-2019 Ram 1500 8HP70 8-Speed Auto
- 2015-2021 Jeep Grand Cherokee 8HP70 8-Speed Auto
- 2013-2021 BMW X5 ZF 8HP 8-Speed Auto
Related Codes
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