I just bought this 95 jeep grand cherokee and he told me a relay that controls the everything in the center counsel is bad. so there is no power to the radio, ac,fan controls or anything.

ok why not say drivers demand
here its 86f and hot.
but do you want heat or cold
sounds like ATC auto matic climate control options
where it has a dial for spec. temperature:?
if the display was dead. id check power to it\
12vdc. fuse that look good can in fact be BAD
checked fuses means what.
we use a meter to check them
so if power is present on the display controller
then its bad. if no 12vdc there, the fuse or wires to it bad. for electronics to work ,need power and ground,at least active. see the ATC SELF TEST?
th e book is free see ZJ jeeps. all is there
chapter HVAC.
Chapter 24 , wiring is 8w.

posted 300+ times
here
again
http://jeepdied.com/books.html

XJ 94
its not bad, wana bet? 90% are not.
(i used to fix them)
so the PCM,. the FSM book covers that.
why not read that.
JEEPJX
PCM is baD ONLY WHEN inputs good, and its outputs are bad.
(and outputs not shorted) !!!
(same or all computers on earth)
lose of power to PCM or ground
or bad power.(weak, or intermittent)


Got DTC errors , post them?
innova 3140 best bank for buck on 93-95 jeeps. !!!
that is a low priced scan tool

are you having ASD relay issues?
http://www.fixkick.com/Jeeps/ASD.html


see XJ 95 here (same i think)
http://colorado4wheel.com/manuals/Jeep/XJ/

page 8D-23
engine bay next to Air cleaner.

to diagnose any car, a real scan tool is best.
or you will need a full lab of meters and scopes. like me.
the scan tool show up things the keyon/off trick does not.
http://www.fixkick.com/Jeeps/jeeps.html#poor_mans-scan

On a 94 Jeep Grand Cherokee check fuse 17 should be a seven and a half amp fuse if the fuse is good go under the hood to your power distribution center look for the air conditioning relay swap it with one of the other ones several of those are Universal fit see if it works then

It goes in the power distribution center box. It is a black rectangular box under the hood close to the battery. It has maxi-fuses and relays in it.

1998 Jeep Grand Cherokee Service Manual
http://rapidshare.com/files/138412864/ServiceManual.Jeep.Grand.Cherokee.1998_by_Parasico.rar
see ezg_8w.pdf, PDF page 46 of 448 for the junction box

SEE ALSO
http://www.scribd.com/doc/4790640/93ZJ-Secc-8W-Wiring-Diagrams
look for diagrams for fuse block, and relay center and power distribution center

fuse location is on front passenger side's side of dash (open door) OR underneath the dash, kick panel
the power distribution center is under hood.

About Jeep Grand Cherokee 1999-2004, also called WJ, you must review this information, is in spanish language, but can hel yo:
- Jeep-WJ-2002-Cherokee-Service-Manual-PDF-08W-Diagrama-de-Cableado
* Electrical Distribution Center in 8W 10-2 Page 24 / Transmission Relay
* Trasmission Relay Descriiption in 8W 10-8 Page 30 / Diesel & Gas
* Control Transmission System in 8W 31 Page 167 and next.

Hope this help you.

42RE: The 42RE four speed automatic transmission was used in 1993.3 to 1998 Jeep Grand Cherokees with 4.0L engines. 46RH: The 46RH four speed automatic transmission was used in 1993 to 1995 Jeep Grand Cherokees with 5.2L engines.

On my 95 Jeep Cherokee Laredo, the horn relay is in a compartment under the glove box. Open the glove box and remove the three screws in the front on the bottom. Take the plastic cover out and you'll see a bank of relays. The horn relay is the one on the far left, closest to you.

Likely a bad relay. Check in the power distribution center under the hood. pull the relay out. Check #s on it, they are probably the same as on another one. If so, plug the other one in it's place. If fan problem ceases, replace the relay. Don't forget to put the one you removed back where you got it!