P28D5 code meaning
Clutch B Motor Phase U-V-W Performance
Powertrain system Generic code P28xx codes Check engine light
What P28D5 means
P28D5 means the clutch B motor wiring passes the electrical checks, yet the motor's behaviour, its phase currents and resulting rotation, does not follow what the controller demands. It is one of the few codes in this group with a public manufacturer reference: Stellantis bulletin 21-040-26 (May 2026), valid for Jeep Renegade and Compass of model years 2022-2025 sold in Europe with the 1.5 MHEV and the 7HDT300 hybrid DCT, pairs P28D5 with the clutch temperature code P27F3. That pair points at the actuator cylinder for the even gears; particles inside the gearbox can jam one of its pumps. The MIL is lit, and if the activation routine fails, the even-gear actuator is renewed with 3.0 labour hours allowed. P28C7 is the odd-gear twin.
P28D5 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyHard
- Typical labor1 to 4 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P28D5
- MIL on, transmission warning shown
- Even gears not available on the 7HDT300
- Often logged together with clutch B temperature code P27F3
Common causes of P28D5
- Most likelyParticles from the gearbox jamming a pump in the even-gear actuator (Stellantis 7HDT300)
- PossibleClutch B actuator motor running stiff or weak
- Less likelyRaised contact resistance on one phase causing uneven currents
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Clutch motor bWiring harnessTCM
What each part of P28D5 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 8 | Area: transmission. |
| D5 | The exact fault in that area. |
What to do next
- Note P28D5 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P28D5
What does P28D5 mean?
P28D5 means "Clutch B Motor Phase U-V-W Performance". P28D5 means the clutch B motor wiring passes the electrical checks, yet the motor's behaviour, its phase currents and resulting rotation, does not follow what the controller demands. It is a generic code, so it means the same on every make.
Is it safe to drive with P28D5?
Drive gently and only to a workshop. With P28D5 the car can go into limp mode (reduced power) to protect itself.
Will P28D5 fail an emissions test?
Yes, it can. P28D5 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P28D5 to fix?
Difficulty: hard. A typical repair takes 1 to 4 hours of work. This is a job for a workshop.
Will P28D5 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.