P2788 Possible Causes
- Low transmission fluid
- Internal mechanical transmission failure
- Faulty transmission control module (TCM)
How to Fix Code P2788
Check the “Possible Causes” listed above. Visually inspect the wiring harness and associated connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
Possible Symptoms
Check engine light illuminated (or service engine soon warning light)
P2788 Meaning
The transmission control module (TCM) monitors the adaptive learning of the automatic shift manual. The TCM sets the OBDII code when it detects an abnormality in the automatic shift manual adaptive learning system.