RAP relay switching circuit (low power)

[semi]

I just bought a 98 XLT Explorer, and been having trouble with the windows not working. I traced it back to the retain accessory relay, and jumping the high power side, the windows all work fine. However, it seems there is only voltage on one pin- the high power input, which would lead pretty much straight to the battery. When accessory power is switched on (I.e. the key turned on) none of the other pins get power.

Does anyone know which pin should have voltage to close the relay, and where it leads? Or if the relay only gets a momentary voltage to toggle open/closed? I'm going to pick up a new relay tomorrow, but it seems that if there's no other live pins, it won't fix anything?

Thanks

 

[bobflood]

I just bought a 98 XLT Explorer, and been having trouble with the windows not working. I traced it back to the retain accessory relay, and jumping the high power side, the windows all work fine. However, it seems there is only voltage on one pin- the high power input, which would lead pretty much straight to the battery. When accessory power is switched on (I.e. the key turned on) none of the other pins get power.

Does anyone know which pin should have voltage to close the relay, and where it leads? Or if the relay only gets a momentary voltage to toggle open/closed? I'm going to pick up a new relay tomorrow, but it seems that if there's no other live pins, it won't fix anything?

Thanks

Looking at wiring diagram, it looks like you should have power on pin 86 of the accessory delay relay via the battery saver relay. Both the battery saver relay and the accessory delay relay appear to be operated by grounds applied by the GEM (Generic Electronic Module). Fuse #26 (10A) in the I/P fuse panel provides power to the relays; power for the windows themselves comes from Fuse #4 (30A) in the Power Dist Box in the engine compartment. The relays are definitely not "toggle" relays - power has to be maintained to keep them operated.

Here is a great source for wiring diagrams:
Auto - Online Repair Info
http://search.ebscohost.com/
Login ID: rrcc
Login PW: rebsco
Select: Auto Repair Reference Center
Fill in: Find Your Vehicle
Follow prompts down to Wiring Diagrams.
Good luck.