P2719 — Transmission pressure solenoid signal problem

The transmission's pressure control solenoid D is sending a signal that doesn't make sense to the car's computer. This usually means there's an electrical issue like a bad connection, wiring problem, or a faulty solenoid. The solenoid controls fluid pressure inside the transmission, which helps it shift gears properly.

Common causes

The cause is almost always one of a few things. Here they are — P2719 rarely comes from anything outside this list:

• Faulty pressure control solenoid D
• Damaged or corroded wiring/connectors
• Transmission control module (TCM) fault
• Low or dirty transmission fluid
• Internal transmission issues

Where to start

In the order a sensible mechanic would work — the cheap checks first, the expensive replacements only after:

1. Check and clean wiring and connectors
2. Test and replace faulty pressure control solenoid D
3. Inspect and top up or replace transmission fluid
4. Scan and reset transmission control module
5. Further transmission diagnostics or repair if needed

That is what holds for P2719 in general. From here it depends on your engine — tell me which car it is and what it does, and I will give you the steps for it: real procedures, torque figures and diagrams instead of general advice.