Question about 1996 Jeep Grand Cherokee

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1996 Jeep Grand Cherokee...Blowing ASD fuse

My jeep keeps blowin the auto-shutdown fuse which causes it to either stall or not start! When the fuse blows the fuel pump keeps running but none of the gauges work and it wont start...Any Ideas?

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My daughters jeep had the same problem. We fixed by finding the wires that run beside the manifold down under the car. The conduit that have the wires in it was worn away because of resting up against the manifold, causing the wires to short the system out. Once I replaced the conduit and taped the wires it has not shorted out again. By the way, the Jeep dealer couldn't find the problem.

Posted on Feb 24, 2009

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Just a guess but you likely have a short somewhere...start tracing the circut till you find a ground that shouldn't be there. Find out how many smaller fuses that circut serves and try to isolate it down from there!

Posted on Feb 22, 2009

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gee 1, last year of Cherokee is 2001, so you meant Grand right??????
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the FSM covers this, and the ASD has 8 ways to trip off line'
UP TO 8 ways , just like old wonder bread had.

answering for 2004 GC, (i actually look it up in the real book)
not google butchered DTCs.
P means power train, 1 means factory codes.
a 3 coin toss lands...
2004 GC, vin N, 4.7L v8 automatic,


it reads. verbatim.
Trouble Code: P1389
No Auto Shutdown Relay Output Voltage To PCM
Number of Trips to Set Code: 1
  • Catastrophicmonitor failure.
Trouble Code Conditions:
Engine cranking; and the PCM did not detect any voltage on the ASD Relay Output circuit to the PCM during the CCM test.
Possible Causes:
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  2. ASD relay output circuit is open between the relay and PCM
  3. ASD relay power circuit is open (test power from Fused B+)
  4. ASD relay is damaged or has failed
  5. PCM has failed (nah)


it means, to me.
  • the relay is unplugged
  • or fuse blown "fused B+" (a top reason, world wide)
  • the relay is bad.

my buds ASD page,

http://www.fixkick.com/Jeeps/ASD.html

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More details about Power Center Distribution, check the Section 8W Wiring Diagrams

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