pulled my instrument panel to change the fuel gauge. It is a Yazaki panel. this panel has 4 multi-wire plastic connectors and 2 or 3 single wire connectors (tabs). changed the fuel gauge and reinstalled the panel. The multi wire connectors were easy to reconnect (each has a dedicated location).

the dumb error was that I did not record where the 3 single wire connected to. I assumed that they were ground but maybe not. I have the three 4 vol green repair manuals, but there is no diagram showing where those 3 wires plug into. the engine starts and appeared to work fine (the instruments work). however, the instrument panel lights are now dead.

there are two double connector tabs on the back of the panel. one is near the rheostat and the other is on the rear of the speedometer.

where do those wires go??

are those tabs grounds??

are all the wires grounds?

the wires are: white with a black stripe (on the fuel gauge side of wiring harness), red with a white stripe, and the third connector has two wires Yellow and brown with white stripe. those two are on the temperature gauge side of the wiring harness.

The problem with the white wire on the fuel gauge side of the panel is there is no place to connect it to. the wire is to short and there is no tab connector on that side of the instrument panel. I remember unplugging it, but now have no idea of where it goes.

any ideas????






are the wire

There is a male tab just inboard (to the right if you are looking at the back of the cluster) of the lower of the two 'big' connectors that are on the left or tach side of the cluster. This tab is between the lower 'big' one and the three wire speedometer connector.

Try the white wire there.

The yellow wire goes on the speedometer, a little above the middle.

"red with a white stripe, and the third connector has two wires Yellow and brown with white stripe." Not seeing these like that in my Volvo green book wiring diagram.

I did this a month ago and the wires seemed to remember where they went- I could tell by the length and bend. Certainly not my memory.

Be sure all the big connectors are all firmly seated.

When I did this one of the single wires had fallen down and then a 'big' connector was not seated. Took three tries.

Good luck.

chuck 1988 745t M46 200350mi
--
1988 745t 175k mi, 1995 945 148k mi

If you have the greenbook wiring diagram for your car, look up "combined instrument panel" and there's details for all the instrument connections.

Bill