Hi @ruthduncan,
That’s dependent on your vehicle configuration, but is most likely either
Navigator:
| Parameter | Value |
|---|---|
SERVO13_FUNCTION |
59 (RCIN9 - Lights 1 Level) |
SERVO16_FUNCTION |
7 (MountTilt - Camera) |
Pixhawk:
| Parameter | Value |
|---|---|
SERVO9_FUNCTION |
7 (MountTilt - Camera) |
SERVO10_FUNCTION |
59 (RCIN9 - Lights 1 Level) |
If you have a clear enclosure (or if you open it) you should be able to see which servo output pins the relevant wires are connected to - the lights use a single yellow wire, and the camera tilt servo uses a three-coloured black-red-yellow ribbon cable. Note that on a Pixhawk AUX OUT pins 1-6 correspond to SERVOn_FUNCTIONs 9-15.