jmiller8324

Have a 94 Grand and when u turn the key on all the lights come on like they post to it will start but if u turn key on and the only the abs light comes on no other light up then it won't start all thought might be bad wire somewhere but all seem ok thought maybe PCM but it don't do it all the time. So hopefully someone can help cure my headache cause i have tried all And I just can't figure it out. Thanks to those who try and help.
I forgot to add it has the 4.0

ol"blue

Welcome to CF.
How old is your battery?
Is it fully charged?
Are the cables in good condition, and tight?
Have you checked the starter relay?

jmiller8324

Battery load tested good cabels good it cranks over fine just don't start the fuel pump and asd relay don't click when I turn the Key on and have sealed out and they r all good but when u turn the key on only the abs light comes on and it won't start if all the dash light come on like they post to it starts right up and I also noticed when it don't start the PCM seems to have a whistling sound so I wonder if it went bad or cover bolts shorting the PCM out

ol"blue

I'm not very good with electrical stuff. Maybe this will help. >->Jeep ZJ Wiring diagrams

jmiller8324

Hey thanks I have bin trying to find something like that. I no this thing driving me nuts. I'm very good when it comes to vehicles but this thing got me stomped

bopeep94

mine sometimes does the same thing.
but yeaterday i tried starting it in nuetral, and it started just fine.

bopeep94

mine sometimes does the same thing.
but yeaterday i tried starting it in nuetral, and it started just fine.

2k xj

I've heard with that year of gc you should be able to disconnect the battery for ten min and it'll reset it's self and you should be ok.

jmiller8324

I tried starting in neutral and I have also tried the battery trick and still no luck

jmiller8324

I tried starting in neutral and I have also tried the battery trick and still no luck

jmiller8324

I tried starting in neutral and I have also tried the battery trick and still no luck

ET JEEP

Intermittent electrical problems are really difficult to diagnose. Since your ASD and Fuel pump relays do not click check the fuses in the Power Distribution Center. Should be a 15 or 20 amp fuse for those relays. I would check all the fuses and look for any loose ground wires.

Check the fuses with a meter. Do not do a visual inspection. The meter is best.

jmiller8324

Fuses good and cleaned and checked all grounds I could find with tester and all seem good