Aston Martin diagnostic trouble code

P0999: Shift Solenoid F Control Circuit Short To Supply

Use this reference to understand the recorded condition, confirm the available V8 Vantage or DB9 manual coverage, and follow the documented diagnostic checks before replacing parts.

Code family
Powertrain
Vehicle system
Transmission
Manual coverage
DB9
Warning-lamp status
DB9: MIL

What Aston Martin code P0999 means

Shift Solenoid F Control Circuit Short To Supply

DB9 preliminary diagnostic manual · section 2-206

Manufacturer fault-analysis procedure

Test sequence and decision path

1. Connect the WDS and confirm that one of the
above codes is logged.

2. Clear the logged DTCs.

3. Run a short road test and then check the logged
DTCs again.

4. If any of the above DTCs are logged again,
replace the mechatronic unit. and run a brief
road test to ensure that the problem is resolved.
Open the corresponding manual page for wiring diagrams and figures