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-   -   PDC Fuse F18 keeps blowing (https://www.cherokeeforum.com/f2/pdc-fuse-f18-keeps-blowing-148169/)

Sammy60 09-08-2012 07:00 PM

PDC Fuse F18 keeps blowing
 
1996 Jeep Cherokee SE 4.0L
When my jeep heats up for awhile, if I turn it off, when I start it again the check engine light comes on and a 15 amp mini blade fuse in the PDC blows. Also happens when I'm driving for awhile. I looked in my manual and it shows a completely different PDC, looked online but still have no idea what the fuse even does. According to the diagrams I saw it's F18 and controls ASD Coil. But my jeep starts and runs, although it stalls occassionally, so how could it be. If I could find out what the fuse does, I'd have a place to start.

Radi 09-08-2012 08:12 PM

1 Attachment(s)
'96 PDC...(and 96 doesn't match earlier or later years)

freegdr 09-08-2012 08:17 PM

2 Attachment(s)
which fuse

car5car 09-08-2012 08:27 PM

1 Attachment(s)
I have 97 PD. does it look like yours?

freegdr 09-08-2012 08:37 PM

ops not even here guys

Sammy60 09-08-2012 09:13 PM

Hi,
Thanks freegdr, I only have dial up internet service up here, so it's a real pain.
The second picture the top right blue 15 amp fuse, right below the relays.
1 up and 1 over from the one circled.

Sammy60 09-08-2012 09:18 PM

Thanks car5car but mine is different.

Sammy60 09-08-2012 10:08 PM

1 Attachment(s)
This Fuse please. What does it do? (15amp mini blade fuse)

Attachment 142798

Radi 09-08-2012 11:25 PM

Edit: what code are you getting with the CEL?

Sammy60 09-09-2012 07:19 AM

Code 31 when i turn the key on and off four times. I can't get my friends OBD2 scanner to link to jeep.

ET JEEP 09-09-2012 09:12 PM

Fuse 18 in the PDC powers low washer fluid level switch, backup lamp switch MT only, evap/purge solenoid, park/neutral position switch 4.0L and AT only, ac clutch relay and radiator fan relay.

This is the wiring for a 96 Jeep Cherokee SE 4.0L

That code 31 I believe has to do with the evap/purge solenoid.

Sammy60 09-09-2012 10:27 PM

Thanks everyone. I pulled the pdc and the first thing I saw were wires that finally matched a diagram I had.
Althought it's listed as a an ASD fuse, it actually is the evaporation purge solenoid fuse. Thanks ET JEEP. By the way the ASD fuse is #20.
I appreciate all the help and will let you know how it turns out.

yeti92 06-04-2015 08:33 PM


Originally Posted by Sammy60 (Post 2010549)
Thanks everyone. I pulled the pdc and the first thing I saw were wires that finally matched a diagram I had.
Althought it's listed as a an ASD fuse, it actually is the evaporation purge solenoid fuse. Thanks ET JEEP. By the way the ASD fuse is #20.
I appreciate all the help and will let you know how it turns out.

So what did you fix to get it to stop blowing I am currently having this issue


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