Jeep starts but shuts off.

codadof4
0

Asked by Aug 11, 2008 at 09:34 PM about the 1994 Jeep Grand Cherokee

Question type: Maintenance & Repair

I replaced the batt in my 94 GC and now it won't stay running and the security light flashes how can I fix it?

17 Answers

unhook the neg side of battery for about 5 minutes so the computer can reset itself,if this dont do it ,look in fusebox and pull the ECM fuse for same amount of time,replace.this should fix your problem.

14 out of 14 people think this is helpful.
John Sexton
125

Computer must relearn. Have you scanned the computer for trouble codes?

7 out of 7 people think this is helpful.
Bill Baker
25

I know on some Chryslers you just had to lock and unlock the door with the key to disable the security system. You should give that a try.

2 out of 2 people think this is helpful.
Dessie Orr
75

take ur ignition key to the passenger door turn to lock then unlock and that will reset ur computer

5 out of 5 people think this is helpful.
Christopher Bush
20

change the alternater

2 out of 2 people think this is helpful.
Thomas Marcum
365

take your key and turn the drivers side door lock to the right , then left and then right again ...this will reset the security system.

8 out of 8 people think this is helpful.
scothendickson
80

2002 Grand Cherokee. Here's what happened to me: At every start, the engine would run for ~3 seconds, then die. Here's the solution: Use only a Jeep key made by Jeep. Analysis: I was using spare key (made at local auto parts store). It appears the official jeep key enables the security system when you insert it into the 'key hole'. Notes: If you see an intermittent problem like this, consider getting OEM (original equip. mfg., i.s, jeep) key.

6 out of 6 people think this is helpful.
scothendickson
80

BTW, intermitent problem indicates key is wearing out.

2 out of 2 people think this is helpful.
R0620
50

What worked for my 1994 Jeep GC was the key ticket(unlock, lock and unlock) in the rear door (tail gate) and then open the door.

4 out of 4 people think this is helpful.
SecondHandJeepster
30

R0620 worked for me. 1994 Jeep GC. Close all doors. Insert FACTORY key in the rear liftgate lock. Turn right (alarm sounds); turn left; turn right. Open driver's door and start engine. Voila!

3 out of 3 people think this is helpful.
Hd64900
190

I have done these things had it at dealer and got new key and it is still shutting off after 3 seconds

5 out of 5 people think this is helpful.
Hd64900
190

can the security system be shut down

14 out of 14 people think this is helpful.
R0620
50

The driver's door is the primary lock. For my Jeep the rear tailgate was the primary lock port. The security had been changed. Try each doors(unlock, lock and unlock) after reconnecting the battery. The security may believe it is a break-in.

1 out of 1 people think this is helpful.
Drvmsdsy
20

Thank you guys for this; my primary lock was the passenger door.

2 out of 2 people think this is helpful.
Sue Randolph-Whiteman
230

97 jeep it starts but it shuts off after 3 seconds any answers place

23 out of 23 people think this is helpful.
Kristy Moore
20

Help my 2001 is doing the same thing after my radio was changed

2 out of 2 people think this is helpful.
Kaos14102
0

For all that installed a radio with the antitheft system , today i installed a new head unit on my 2002 gc same thing happend to me first the cluster was dead with all the warning lights on then i thought it might have been the pcm so i tried resetting it by unhooking the negative hooked back the negative cable turned the jeep on it started then it shut of 3 seconds later so finally i said screw it and removed the radio turned the jeep back on and magically everthing worked again . Hope this helps folks ---- mike from riverside ca

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