P28CCClutch A Motor Position Sensor Circuit Range/Performance
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- Needs a drive cycle to confirm a fix
- How the car detects it
- P28CC is the plausibility counterpart to P28CB: the position signal of the clutch A motor arrives, but its values or their sequence make no sense, for example jumps between rotor angles, a missing step in the pattern, or a speed that contradicts the phase currents. CARB expects rationality checks of this kind for input components where feasible. Electrical noise from a damaged shield, a partially broken wire, a loose sensor mount or magnet, and contamination of the sensor target are typical reasons. Since commutation depends on this signal, the motor may stutter, overshoot or stall, which can also produce P28C9 or P28CA. No manufacturer publicly documents P28CC; the result for the driver is lost or rough engagement of clutch A.
- What you may notice
- Clutch A engages roughly or intermittently
- Transmission warning, sometimes only while driving
- Gear changes on one shaft delayed or withheld
- Likely causes
- LikelyPartly broken wire or loose contact causing signal dropouts
- PossibleElectrical interference on the position signal through a damaged shield
- RareLoose sensor, shifted magnet or contaminated sensor target
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Hard · Usually a job for a workshop.Typical cost: €80 – €1,200
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.