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Unread 11-12-2013, 08:09 AM   #31
roadcruzer
Registered User
2001 TJ Wrangler 
 
Join Date: Sep 2013
Location: Farwell, MI
Posts: 39
No Start- Stalled when AC button pressed?

I will check it but why do you think when I pressed the AC button it just up and died. Tried again this morning and still no start. I hear of a fuse blowing for some people that give a no start condition and need to be replaced. Do you know which fuse ( or relay?) this is i need to check. Do you think this Immediate stall when button pressed on AC have blown my PCU? Seems funny it will not even fire now just by pressing AC button.

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Unread 11-12-2013, 06:08 PM   #32
ZeeJay1997
Registered User
1997 ZJ 
 
Join Date: Dec 2008
Location: Sweet Home, Alabama
Posts: 6,445
when you press the AC button, the pcm sends a ground to the relay which, in turn, sends voltage to the clutch. the ac relay coil is on the same circuit with asd and fuel pump relay, so you probably have fuse 18 in the PDC blown. the most obvious cause for the fuse blowing would be a shorted coil in the AC relay, but i've never seen that happen.
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