P2819 code meaning
Pressure Control Solenoid H Electrical
Powertrain system Generic code P28xx codes Check engine light
What P2819 means
P2819 is a collective electrical code for solenoid H: the module knows that coil or wiring is faulty but does not say whether the circuit is open or shorted. Mercedes-Benz uses it on the 8G-DCT dual-clutch gearbox (transmission 724.1 in the A-Class, CLA and GLA/GLB families): P281900, an electrical fault of pressure regulating valve 8, is one of the codes its guided diagnosis tool in XENTRY handles, alongside P281600 for a functional fault of the same valve. GM, by contrast, reports H circuit faults as separate codes P281B, P281D and P281E. CARB 13 CCR 1968.2 requires transmission output circuits to be checked for such faults. Measure coil resistance and the connection to the module before replacing the valve or the mechatronic unit.
P2819 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 P2819
- MIL or transmission warning on
- Limp-home mode with restricted gears
- Jerky starts or rough shifts
Common causes of P2819
- Most likelyCoil of valve H open or shorted
- PossiblePoor contact between valve and mechatronic or module board
- PossibleDamaged transmission wiring or connector
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Pressure control solenoid hTCMTransmission wiring
What each part of P2819 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. |
| 19 | The exact fault in that area. |
What to do next
- Note P2819 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 P2819
What does P2819 mean?
P2819 means "Pressure Control Solenoid H Electrical". P2819 is a collective electrical code for solenoid H: the module knows that coil or wiring is faulty but does not say whether the circuit is open or shorted. It is a generic code, so it means the same on every make.
Is it safe to drive with P2819?
Drive gently and only to a workshop. With P2819 the car can go into limp mode (reduced power) to protect itself.
Will P2819 fail an emissions test?
Yes, it can. P2819 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 P2819 to fix?
Difficulty: workshop only. A typical repair takes 1 to 6 hours of work. This is a job for a workshop.
Will P2819 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.