OBD
P073B
Stuck in Gear 6
What it means
P073B means Stuck in Gear 6.
Check these first
- Degraded transmission fluid
- A shift solenoid stuck in sixth
- A sticking valve body spool
- A TCM software fault
- A worn clutch pack
What to do next
- Check the fluid level and color
- Command each gear on a scan tool
- Test the shift solenoids
- Check the valve body for debris
- Replace the solenoid or valve body if shifts stay stuck
- Clear the code and retest
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Updated
Generic SAE J2012 definition. Last updated 2026-10-10.