wacky instrument cluster - North American Grand Cherokee Association

montrose · 10-28-2010, 10:08 AM

2000 jeep grand cherokee 4.7, When i switch key on all is normal but after starting the power windows stop also overhead dispay freezes also after 1 min of engine running the gauges stop and most of the warning lights come on on dash panel. If i disconect the two small wires on alternator and start car all faults are gone when car isnt charging. The charge is 13.9v,One more thing if i disconect battery for 5 mins the problem goes for 5 mins then returns. Jeep dealer fitted a body control module but it didnt fix it. Recommended a new alternator. Fitted a brand new one today, but no difference. Driving me nuts. Doesn't affect the driving, still as smooth as ever.

85IrocZ-28 · 10-28-2010, 11:10 PM

Take your battery cables off and clean the battery post, and also the inside of the cable clamp. Jeeps have weird issues when they don't have sufficient voltage.

10-28-2010, 10:08 AM	#1
montrose Junior Member Grand Rookie Join Date: Oct 2010 Location: Scotland, UK Posts: 1	wacky instrument cluster 2000 jeep grand cherokee 4.7, When i switch key on all is normal but after starting the power windows stop also overhead dispay freezes also after 1 min of engine running the gauges stop and most of the warning lights come on on dash panel. If i disconect the two small wires on alternator and start car all faults are gone when car isnt charging. The charge is 13.9v,One more thing if i disconect battery for 5 mins the problem goes for 5 mins then returns. Jeep dealer fitted a body control module but it didnt fix it. Recommended a new alternator. Fitted a brand new one today, but no difference. Driving me nuts. Doesn't affect the driving, still as smooth as ever.

10-28-2010, 11:10 PM	#2
85IrocZ-28 YETI - The Abominable WJ Grand Master Join Date: Sep 2006 Location: Utah-243 miles from Moab Posts: 3,685	Take your battery cables off and clean the battery post, and also the inside of the cable clamp. Jeeps have weird issues when they don't have sufficient voltage. __________________ 99 WJ Limited 4.7 \| 6.5" Rockkrawler LA \| 35" Goodyear MTR Kevlar's on MB TKO's Yukon 4.56 Gears \| QD2 - rocking the Varilocks \| Surco Rack with HID's \| LED rock lights \| Smittybilt 8k Iceland Bumper / Flares / Rock Sliders \| Protofab Rear Carrier \| Flowmaster \| SuperChips \| JKS Discos My Jeep won the war, your Honda mowed my lawn. Check out my BUILD THREAD

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