P2796 moderate

Auxiliary Transmission Fluid Pump Motor Performance

The P2796 code means the vehicle's onboard diagnostic system has detected: Auxiliary Transmission Fluid Pump Motor Performance. This is a moderate severity code.

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Keep driving?: Short distances only
DIY difficulty: Advanced
Estimated cost: $400 - $1,200 (pump motor replacement)

Check Your Fluid First

ANCEL AD310 OBD-II Scanner

Read and clear transmission codes. Many trans codes are caused by low or burnt fluid -- check level and color before assuming the worst.

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Read Transmission Codes

LAUNCH CRP123X (Reads All Systems)

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

Step-by-Step Diagnostic Procedure

Scan for codes and confirm P2796 with freeze frame data
Check transmission fluid level and condition
Inspect wiring and connectors for the affected circuit
Test the specific sensor or actuator identified in the code description
Check for related technical service bulletins for your vehicle

Frequently Asked Questions

What does P2796 mean?

P2796 indicates: auxiliary transmission fluid pump motor performance. This code is set by the transmission control module when it detects an issue with this specific circuit or component.

Can I drive with P2796?

Yes, short distances are acceptable. The vehicle may be drivable but schedule repair promptly.

How much does it cost to fix P2796?

Typical 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.