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Old June 9th, 2019, 08:00
Pinoy59 Pinoy59 is offline
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Blown fuse and "no ASD" code

As I was getting off of the trail my jeep died. It threw a code 1389 so I tried another ASD relay that I had with me, with no change. I checked my fuses and noticed one was blown. Can anyone tell me what this fuse goes to? I know I have a short somewhere but I want to know where to start looking.

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  #2  
Old June 9th, 2019, 08:24
Heavyopp Heavyopp is offline
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Re: Blown fuse and "no ASD" code

A quick search brings up a diagram for 97 thru 2001 over at Cherokee forum -- since you didn't specify what year

Fuse 21 - PCM, ignition coil

Your guess is as good as mine from there...
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Old June 9th, 2019, 08:57
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Tim_MN Tim_MN is offline
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Re: Blown fuse and "no ASD" code

This was created and previously posted by member CCKen.


P1389 JEEP - No ASD Relay Voltage At Powertrain Control Module


Possible causes
• Faulty ASD Relay
• ASD Relay wire harness is open or shorted
• ASD Relay circuit poor electrical connection


.

This was created and previously posted by member CCKen.

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Last edited by Tim_MN; June 11th, 2019 at 10:15.
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Old June 10th, 2019, 10:03
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Rob Mayercik Rob Mayercik is offline
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Re: Blown fuse and "no ASD" code

The inside of the lid on my PDC has a diagram that tells you what everything is for - have you looked inside the lid on yours?

Here's an example from a pre-97 model: https://www.cherokeeforum.com/attach...dc-20cover.jpg
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Old June 10th, 2019, 12:44
cwyman6 cwyman6 is offline
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Re: Blown fuse and "no ASD" code

Look near the exhaust manifold for melted wires. Happens alot especially the o2 wires
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Old June 10th, 2019, 15:28
Pinoy59 Pinoy59 is offline
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Re: Blown fuse and "no ASD" code

Quote:
Originally Posted by Rob Mayercik View Post
The inside of the lid on my PDC has a diagram that tells you what everything is for - have you looked inside the lid on yours?



Here's an example from a pre-97 model: https://www.cherokeeforum.com/attach...dc-20cover.jpg
Yes, all that is written in the amp fuse needed for each slot.

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Old June 10th, 2019, 15:29
Pinoy59 Pinoy59 is offline
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Re: Blown fuse and "no ASD" code

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Originally Posted by cwyman6 View Post
Look near the exhaust manifold for melted wires. Happens alot especially the o2 wires
I have looked but haven't noticed anything. I need to dig deeper.

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Old June 10th, 2019, 15:43
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Rob Mayercik Rob Mayercik is offline
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Re: Blown fuse and "no ASD" code

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Originally Posted by Pinoy59 View Post
Yes, all that is written in the amp fuse needed for each slot.
Hm. Didn't realize the later ones had less info in the lids.

Anyway, knowing what year your Jeep is would make it a lot easier for us to help you.
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Old June 10th, 2019, 15:49
Pinoy59 Pinoy59 is offline
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Re: Blown fuse and "no ASD" code

Quote:
Originally Posted by Rob Mayercik View Post
Hm. Didn't realize the later ones had less info in the lids.



Anyway, knowing what year your Jeep is would make it a lot easier for us to help you.
Sorry, it's a 97.

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Old June 10th, 2019, 15:58
alwayzAMC alwayzAMC is offline
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Re: Blown fuse and "no ASD" code

i had a problem with that fuse blowing as well once upon a time, jeep would die suddenly and i would find that same fuse blown, this happened several times until i found a pattern that it would blow the fuse at about 3k RPM, after much frustration many searches and trying to lug my jeep around under 3k rpm, i found a post on a chrysler website that someone had an issue like mine on a caravan maybe? and thier issue was solved with a new alternator, i disconnected the alternator pigtail and the fuse stayed good up to redline. also on that ssame day i found i could only go 60 miles with the alternator disconnected and not the 68 i needed to go,. maybe you have a similar issue. mine was a 99 i cant remember the details of why the alternator was causing the problem.
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Old June 10th, 2019, 16:19
Pinoy59 Pinoy59 is offline
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Re: Blown fuse and "no ASD" code

Quote:
Originally Posted by alwayzAMC View Post
i had a problem with that fuse blowing as well once upon a time, jeep would die suddenly and i would find that same fuse blown, this happened several times until i found a pattern that it would blow the fuse at about 3k RPM, after much frustration many searches and trying to lug my jeep around under 3k rpm, i found a post on a chrysler website that someone had an issue like mine on a caravan maybe? and thier issue was solved with a new alternator, i disconnected the alternator pigtail and the fuse stayed good up to redline. also on that ssame day i found i could only go 60 miles with the alternator disconnected and not the 68 i needed to go,. maybe you have a similar issue. mine was a 99 i cant remember the details of why the alternator was causing the problem.
It's the OEM alternator. I seem to have some grounding issues, because the door locks don't always work. When they don't there is a clicking sound coming from the passenger door. This is the first fuse I have blown and it was at lower RPM.

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Old June 11th, 2019, 04:12
SlowXj SlowXj is offline
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Blown fuse and "no ASD" code

I blew that same fuse a few months ago. It happened during an over rev situation... My 96 doesn't have a limiter... But since that time, which I also replace the crank sensor, it hasn't been an issue.

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