Code result
P28CD
Clutch A Pressure Sensor Circuit/Open
High severity
What it means
The TCM cannot read a valid signal from the clutch A pressure sensor. Open wiring or sensor failure.
Is it safe to drive?
No — stop driving
This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly.
Most likely causes
Open in sensor signal wire
highOne of the most commonly reported causes for this code — check this first.
Pressure sensor failed
mediumA plausible cause — test and verify before replacing parts.
Pin pushed back out of connector body
lowLess common, but worth ruling out after the more likely causes.
Related help
Get the full diagnosis
Add your vehicle and see step-by-step repair help, recalls, and TSBs in Wrenchify.
Diagnose P28CD freeNo credit card required