OBD
P2854
Clutch B Pressure Discharge Performance
What it means
P2854 means Clutch B Pressure Discharge Performance.
Check these first
- A clutch B that discharges slower than commanded
- A restricted clutch B discharge passage
- A failed clutch B pressure sensor
- A worn clutch B pack
What to do next
- Read clutch B pressure on a scan tool
- Command a clutch B release and watch the pressure drop
- Check transmission fluid level and condition
- Test the clutch B pressure sensor circuit
- Replace the clutch B pressure sensor if the discharge stays slow
- Clear the code and retest
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Updated
Generic SAE J2012 definition. Last updated 2026-10-10.