Re: Alpha 1 Trim Indicator not working
This is condensed from a post I found on the net a while back and found useful. Thanks to one Larry Dean.<br /><br />"On the Alpha 1 the sender for the trim gauge is on the gimbal housing. It is a circular black housing with two screws on each side. Have someone sit in the boat and turn on the ignition (do not start the boat), loosen the screws and rotate the sender. Does the gauge move? If so, you simply need to adjust the unit. Lower the drive all the way and adjust the sending unit to make the trim gauge read full down.<br /><br />If the gauge still does not read then check to make sure that the wiring is good. There should be 4 wires to the gauge, 12V+ (purple), ground (black), gauge light (blue) and then the signal from the sending unit. No idea what this color may be but perhaps green with a stripe. Anyway, use a voltmeter and see if the gauge is getting 12V+. If the light in the gauge works, this will confirm that the ground is good as well. Set your meter for resistance (ohms)and pull the sending unit signal wire from the gauge. Put your meter between ground and the signal wire. Have your friend rotate the sending unit on the outdrive. Does the resistance change? It should. If it doesn't you need a new sending unit. If it does then your gauge is likely bad. Try a friends gauge. Simply wire it in from underneath the dash and rotate the sending unit. The gauge should move.<br /><br />Doing this will check for improper adjustment, test for power, ground and signal, check for bad wiring, check the sender and finally check the gauge. One of these will be the culprit."<br /><br />As I understand nothing electrical, this was helpful to me...hopefully, it will be to someone else.