1997 XLT 4x4 Trouble

[PeteFleck]

Hi Ron,

Okay, will go back and up the ohms!

I did test both wires for voltage using the 20V DC setting on my multimeter, grounding negative lead on dash, and got a zero reading on both wires.

Should I allow myself to hope that I’ve found the bad component?


Thanks hugely again,

Pete

 

[PeteFleck]

Hi Ron,

Okay, will go back and up the ohms!

I did test both wires for voltage using the 20V DC setting on my multimeter, grounding negative lead on dash, and got a zero reading on both wires.

Should I allow myself to hope that I’ve found the bad component?


Thanks hugely again,

Pete

P.S. not sure why I set to 200ohms, must’ve still been thinking 4x4 relay test

 

[RonD]

OHM Test the switch wires at GEM end and not plugged in to GEM

The Grey/red wire might be the reference Ground so also test it with OHM meter to dash Ground, if its 0 OHMs then thats OK its a reference ground

 

[PeteFleck]

Hi Ron,

Yep, doing my ohm test at the GEM end of those four wires.

Just heading out now to do some more tests. Will shoot some results your way in a half hour or so.

Is it not conclusive that the switch is bad based on the voltage test on those two wires showing nothing?

Thanks,

Pete

 

[RonD]

TWO wires for the 4WD switch

 

[PeteFleck]

There are four coming from the back of mine.. the black and red/blue I am ignoring.. the grey/red and blue/white I am testing at the GEM end..

 

[RonD]

Yes, that is correct, the other 2 are for the back light bulb, illumination

 

[PeteFleck]

Okay.. back again..

With ohmmeter set properly to 20,000 I was able to do the checks and got the correct readings for all switch positions (as per the earlier post).

I am still not reading any voltage on my multimeter when I test those two wires?

Any thoughts on that?

Cheers,

Pete

 

[PeteFleck]

Actually the resistance reading in 2WD was a little higher than the suggested value.. 4050ohms

 

[RonD]

With switch and GEM hooked up, and key on, test for voltage on white/blue wire with meter grounded to dash
Then test grey/red meter still grounded to dash

 

[PeteFleck]

A time which end/where am I ouch those wires with positive probe?

 

[PeteFleck]

Sorry.. ignore that.. I connected at switch end.. 4V on white/blue, nothing on red/grey

 

[PeteFleck]

So it would seem from these tests that the switch is not the issue!! Haha.. I thought we were winning!

Where would you look now?

 

[RonD]

The 4v wire should change to 3v with switch in 4high, the 2v in 4low

Yes that would mean switch and wiring is OK

 

[PeteFleck]

Absolutely.. that’s what happened when I worked the switch..

GEM?