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96 jeep Cherokee. Not getting 12v to ignition coil.

Old Jun 15, 2024 | 08:01 PM
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Default 96 jeep Cherokee. Not getting 12v to ignition coil.

Aloha jeep fam from Hawaii.

so I’ve got a 96 Cherokee 4.0 automatic all stock.
no check engine light
truck was running great then out of the blue it wouldn’t t start one morning. I thought CPS right off the bat so I replaced it still cranks no start. So I began checking my 5v constant and found no known shorts. Also replaced ASD RELAY. No changes my voltage reading coming out the harness at ignition coil is .3 on one side and 10 on the other.

Am I missing something that’s causing my 12 volts to not make it to the coil.

Also I have 12v at the relay In fuse box.


any help would be great I’m stumped !

Last edited by Beau420; Jun 15, 2024 at 09:20 PM.
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Old Jun 16, 2024 | 08:49 AM
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Year: 96
Model: Cherokee (XJ)
Engine: 4.0
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Originally Posted by Beau420
Aloha jeep fam from Hawaii.

so I’ve got a 96 Cherokee 4.0 automatic all stock.
no check engine light
truck was running great then out of the blue it wouldn’t t start one morning. I thought CPS right off the bat so I replaced it still cranks no start. So I began checking my 5v constant and found no known shorts. Also replaced ASD RELAY. No changes my voltage reading coming out the harness at ignition coil is .3 on one side and 10 on the other.

Am I missing something that’s causing my 12 volts to not make it to the coil.

Also I have 12v at the relay In fuse box.


any help would be great I’m stumped !
download this ('96 FSM)

Go to page 635, and read the paragraph "Ignition coil" and the next one very carefully, the circuit diagram is a few pages later

(I will have to add link later, due to access)...here is an excerpt

Its a bit complicated, keep looking for the 12V, you may have a failure in wiring, ASD relay, PCM, or shorts in other circuits





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