Thanks again for very clear procedure/diagram.
Ok first gain access to the GEM and use the pic below to do a couple of tests. We are going to check the white wire with the light blue stripe on it. Now unplug the C3 connector from the gem and check the resistance of this wire between the 4x4 switch and the GEM term number 8, it should be less then 5 ohms if more then check for a break in the wire.
RESULT: NO discernable continuity
Now plug it back in and do a voltage test between the white wire with the light blue stripe and gray wire with the red stripe. Should be battery voltage with key on
RESULT: Found two grey wires no red stripe on either, but by working at corresponding grey/red wire at switch switch figured out which was switch leg. Only found 3.7 volts with key on (Car not on).
Now unplug the C3 connector again and check for continuity between ground and the white wire with the light blue stripe, if continuity is pressent then look for the short or where it is touching ground, if no continuity then we go to the next test on the GEM.
RESULT:Key off: 4.17 K ohms
Key on: 5.80 K ohms
You will need to be a little patient as this is long test.
NO PROBLEM! PATIENCE I GOT-- EXPERIENCE AND SPECS I DON'T!
Talk to you soon.
Saturday, October 24th, 2009 AT 9:07 AM