97 xj no spark problems
Seasoned Member
Joined: Dec 2010
Posts: 345
Likes: 1
From: So. California
Year: 1991
Model: Cherokee
Engine: 4.0 HO
I have only owned 87, 90, and 91 XJ's. His problem sounded kind of like what my 90 XJ did and it ended up being that resistor.
Senior Member
Joined: Jan 2012
Posts: 720
Likes: 1
From: vanburen
Year: 1995 &2000
Model: Cherokee
Engine: 4.0
Hey guys I'm new to the fourms and I have a 97 xj 4.0 and at first when I got it it had no spark so I replaced the crank position sensor and that was the problem. So I drove it about 20 miles it started making noises coming from the alternator. Drove about 2 more miles it shut off and the alternator was seized. Not sure if that's why it died or not but I pulled the belt off and it still wasn't starting. So I found out it wasn't getting spark its getting fuel though. So I went ahead and replaced the cps again tht wasn't the problem. Replaced te coil that wasn't the problem either and that's all I've done so far. So I'm not sure what's wrong. Does anyone know anything that could be the problem? Another sensor or something?
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Junior Member
Joined: Aug 2011
Posts: 69
Likes: 0
From: New jersey
Year: 1998
Model: Cherokee
Engine: 4.0
So in my high school we have auto shop so I was telling my teacher about it and he said bring it in so me and my buddy trailerd it over there and they have the computer thing were you plug it in. Well i forget what the number of the code it threw it was
Like p13 something but its saying there's no voltage coming from the ASD and I swapped around the relays in the fuse block still reading the code idk what to do lol
Like p13 something but its saying there's no voltage coming from the ASD and I swapped around the relays in the fuse block still reading the code idk what to do lol
Thread Starter
Junior Member
Joined: Aug 2011
Posts: 69
Likes: 0
From: New jersey
Year: 1998
Model: Cherokee
Engine: 4.0
Yea I pulled the one wire off the distributor that connects to the coil and no spark and then i pulled one that connects to the spark plug and still no spark. It's giving me a code saying no voltage from ASD
CF Veteran
Joined: Oct 2009
Posts: 5,390
Likes: 3
From: Chicago IL
Year: 1997
Model: Cherokee
Engine: 4.0 Straigh 6
Originally Posted by Jeepkid922
Yea I pulled the one wire off the distributor that connects to the coil and no spark and then i pulled one that connects to the spark plug and still no spark. It's giving me a code saying no voltage from ASD
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Junior Member
Joined: Aug 2011
Posts: 69
Likes: 0
From: New jersey
Year: 1998
Model: Cherokee
Engine: 4.0
CF Veteran
Joined: Aug 2010
Posts: 8,357
Likes: 103
From: Canton, MI
Year: 1999
Model: Cherokee
Engine: 4.0
Mini fuse F18 is the ASD power fuse. Fuse F20 is the fuse that powers the ignition coil and the fuel injectors. Fuse F11 in the Junction Block (kicker panel) is the power for the ASD relay control coil (and other relay control coils).
Hope this helps.
CF Veteran
Joined: Aug 2010
Posts: 8,357
Likes: 103
From: Canton, MI
Year: 1999
Model: Cherokee
Engine: 4.0
So in my high school we have auto shop so I was telling my teacher about it and he said bring it in so me and my buddy trailerd it over there and they have the computer thing were you plug it in. Well i forget what the number of the code it threw it was
Like p13 something but its saying there's no voltage coming from the ASD and I swapped around the relays in the fuse block still reading the code idk what to do lol
Like p13 something but its saying there's no voltage coming from the ASD and I swapped around the relays in the fuse block still reading the code idk what to do lol
P1389-NO ASD RELAY OUTPUT VOLTAGE AT PCM
Set Condition: No voltage sensed at the PCM when the ASD relay is energized.
Possible Causes:
POSSIBLE CAUSES
WIRING HARNESS INTERMITTENT PROBLEM [corroded connector pins, bent or broken connector pins, chaffed/broken wires - visually inspect/clean]
WIRING HARNESS INTERMITTENT PROBLEM [corroded connector pins, bent or broken connector pins, chaffed/broken wires - visually inspect/clean]
ASD RELAY OUTPUT CIRCUIT OPEN [wiring between ASD Relay and the PCM]
FUSED B+ CIRCUIT OPEN [PDC F18 or F20 Open, possibly F21 open]
ASD RELAY
PCM
Here's a diagram of the '97 ASD circuit:
Last edited by CCKen; Oct 23, 2012 at 12:27 PM.
Thread Starter
Junior Member
Joined: Aug 2011
Posts: 69
Likes: 0
From: New jersey
Year: 1998
Model: Cherokee
Engine: 4.0
Seems like some good information I checked all the fuses they are good so it's probably a wiring problem maybe because the previous guy did a little chopping In the harness before
CF Veteran
Joined: Aug 2010
Posts: 8,357
Likes: 103
From: Canton, MI
Year: 1999
Model: Cherokee
Engine: 4.0
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