What it means
The TCM detects a generic fault on the park lock or pawl actuator circuit. Park engagement command path is impaired.
At a glance
- Usually lights the check-engine light
- The engine or gearbox may go into limp mode
How it works
The park lock or pawl actuator moves the transmission's parking mechanism in response to the driver's Park selection. P2887 sets when the transmission control module detects a fault in the actuator circuit, without specifying whether the circuit is open, low, high, or mechanically slow.
Common causes
Most likely first.
- Park lock actuator fault
- Wiring or connector fault
Symptoms
- Transmission warning light on
- Difficulty shifting into or out of Park
- Park position may not engage or release as expected
How to diagnose it
- Record freeze-frame data and check for related transmission codes before clearing anything, noting whether the fault occurred during Park engagement or release.
- With the vehicle secured against movement, confirm the displayed gear position and observe whether Park engages and releases consistently.
- Inspect the park lock actuator connector and accessible wiring for damage, corrosion, loose pins, or poor connections.
- Use a scan tool to compare the Park command with actuator status or feedback, if available.
- Test the actuator circuit and actuator according to the manufacturer's wiring information, then check the park mechanism for binding if electrical tests pass.
Common fixes
- Repair loose, damaged, or corroded actuator wiring and connector pins.
- Replace a failed park lock actuator after confirming it does not respond correctly.
- Repair a binding park mechanism if inspection confirms mechanical resistance.
- Repair the control circuit fault identified by testing.
Can I keep driving?
Do not rely on Park to hold the vehicle if engagement is uncertain; use the parking brake and choose level ground. Avoid driving if the transmission cannot reliably select or release Park, and arrange prompt repair.
A code shows where the control module detected a fault, not always which part failed. Check the causes in order and confirm with a test before replacing parts. Have several codes? Check them together
This is a generic code: it means the same on every make. The car’s maker may add more detail in its own service information.