I have a Garmin autopilot setup that's having some issues.
The equipment:
The equipment:
- 8616 plotter
- GHC 20 autopilot display
- Reactor 40 autopilot
- Smartpump v2
- Shadowdrive
- System worked flawlessly for a 900+ mile trip
- Recently at dock, when system on it threw multiple and persistent "low ECU voltage" warnings. Boat was on shore power with batteries at nominal voltage and charger working.
- Rebooted and also had engine running; minimal result. Warnings eventually stopped.
- This weekend I went to engage the AP and got an error: "ECU not present".
- Check all the power cables to ensure they are not loose.
- Check the ECU 40A fuse to ensure its not blown
- Check the voltage for the ECU power cable to ensure its getting 12v at the end of the cable.
- Check the cables between the CCU and the ECU to make sure they are not loose
- Check the N2K cable between the CCU and the rest of the N2K network, and ensure there are proper terminators. I kind of discount an N2K issue because other items on the N2K network are working OK.