P282B code meaning
Pressure Control Solenoid K Electrical
Powertrain system Generic code P28xx codes Check engine light
What P282B means
P282B covers electrical faults at solenoid K when the module does not break them down into open, low or high. Mercedes-Benz uses P282B00 on the 8G-DCT (transmission 724.1) for an electrical fault of pressure regulating valve 10; its 2025 information LI27.00-P-077141 includes the code among those the IPR guided routine analyses before parts are replaced, while P282800 stands for a functional fault of that valve. GM, on the 2023 Corvette, instead reports K wiring faults separately as P282D, P282F and P2830. CARB 13 CCR 1968.2 forms the legal basis for monitoring such outputs. Typical findings are a broken coil winding, a damaged conductor inside the mechatronic unit or corrosion at the plug; drivers may notice rough engagement or a warning message.
P282B at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyWorkshop only
- Typical labor1 to 6 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P282B
- Rough clutch engagement
- Transmission warning or MIL
- Emergency mode
Common causes of P282B
- PossibleBroken coil winding in valve K
- PossibleDamaged internal conductor in the mechatronic unit
- Less likelyCorrosion at the transmission plug
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Pressure control solenoid kTCMTransmission wiring
What each part of P282B 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. |
| 2B | The exact fault in that area. |
What to do next
- Note P282B 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 P282B
What does P282B mean?
P282B means "Pressure Control Solenoid K Electrical". P282B covers electrical faults at solenoid K when the module does not break them down into open, low or high. It is a generic code, so it means the same on every make.
Is it safe to drive with P282B?
Drive gently and only to a workshop. With P282B the car can go into limp mode (reduced power) to protect itself.
Will P282B fail an emissions test?
Yes, it can. P282B 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 P282B to fix?
Difficulty: workshop only. A typical repair takes 1 to 6 hours of work. This is a job for a workshop.
Will P282B clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.