Join Date: Jul 2002
Location: Wasilla Alaska
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I just installed a used tach cluster into my 88 daily driver.
The only thing not working is the temp gauge.
The sender is ok because the other cluster that was in the same zuke worked fine.
I did the lightbulb test that the FSM suggests, and the Gauge passes with flying colors.
Since the test is done at the sender end of the wire, and the gauge passes the test, I suspect that the wire and connectors are fine.
Does the sender have to match the gauge year for year?
I wouldn't think so.
Also, On the back of the tach cluster, there are two plugs, Three wires that go to the ECM reset switch, and the speedo cable.
There is one more black wire that is screwed to a contact on the circuit board. On the other end of this same wire is a spade type plug in a plastic guard. What does this wire go to?
I have checked for voltage with the key in the off position and there is none.-----With the key in the run position, The voltage varies from .2 to 11 volts.