Obd2 plug not working
#1
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Year: 2000
Model: Cherokee (XJ)
Engine: 4.0 inline 6
Obd2 plug not working
I have a check engine light on and when plugging in my reader it will not turn on. I tried multiple code readers and none would work. I checked across the pins and had power, checked fuse which was good, and checked the ground on the valve cover. I then cleaned out the plug with electrical cleaner and now when I plug the reader in the screen flashes for a split second then turns off again. Any ideas on what’s going on or what to look at next?
Last edited by Duecedalton; 05-29-2023 at 08:20 PM.
#2
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Try unplugging the CPS before plugging the code reader in.
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Duecedalton (05-31-2023)
#3
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Year: 2001
Model: Cherokee (XJ)
Engine: 4.0L
I had that problem with my XJ when I 1st got it , ended up to be a bad abs computer all I had to do is unplug it and then the OBD2 plug started working .
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Duecedalton (05-31-2023)
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Doesn’t have abs computer. Tried unplugging cps and did nothing.
Last edited by Duecedalton; 06-05-2023 at 04:51 AM.
#6
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Year: 2000
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For anyone wondering, I found the issue. Motor was swapped in 1k ago right before I bought it. Previous owner forgot to put the ground back on the block and had something else grounded to that pin. Found the ground wire tucked back behind the block
#7
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Year: 1990
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Nice job!! Thanks for reporting back.
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Duecedalton (07-18-2023)
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