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Jeep Wrangler YJ
YJ General Discussion
Non starting after new thermostat and heater core flush
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<blockquote data-quote="jpjeep26uk" data-source="post: 441145" data-attributes="member: 20690"><p>Ok, with the key in on notch two but not starting up, I've tested the current coming in on the coil module connector and it's 12v on the A1 pin.</p><p>Plugged it into the module and tested the positive terminal on the module itself and its 12v.</p><p>I think that's a good thing?</p><p>Seems like current is getting to the module to start it. </p><p>Then I tested the ECU connector and with the key in the same notch it shows 0.06 volts.</p><p>Not sure what that means really?</p><p></p><p>Took the coil off the module and tested ted for continuity and it's coming up with '1' on each combination of multimeter / terminal</p><p>Not too sure about that either haha.</p><p></p><p>I checked the CPS and it seems fine from a fitting perspective and the connectors are clean and snug so nothing physically wrong </p><p>Not sure how to test that item with a multimeter or light / power on / power off etc.</p><p></p><p>Going out to see if I can find an ignition module and coil and see if that's the culprit.</p><p>I'm also wondering if I fried the ECU.</p><p>They are a nightmare to remove in these things I've been told.</p><p></p><p>They are also about $500-$700 to buy over here. Not including shipping so I bloody well hope it's not that !!!</p><p></p><p>More to come in the next bulletin, now back to you in the studio....</p><p></p><p>[ATTACH=full]122505[/ATTACH]</p><p></p><p>[ATTACH=full]122506[/ATTACH]</p><p></p><p>[ATTACH=full]122507[/ATTACH]</p><p></p><p>[ATTACH=full]122508[/ATTACH]</p></blockquote><p></p>
[QUOTE="jpjeep26uk, post: 441145, member: 20690"] Ok, with the key in on notch two but not starting up, I've tested the current coming in on the coil module connector and it's 12v on the A1 pin. Plugged it into the module and tested the positive terminal on the module itself and its 12v. I think that's a good thing? Seems like current is getting to the module to start it. Then I tested the ECU connector and with the key in the same notch it shows 0.06 volts. Not sure what that means really? Took the coil off the module and tested ted for continuity and it's coming up with '1' on each combination of multimeter / terminal Not too sure about that either haha. I checked the CPS and it seems fine from a fitting perspective and the connectors are clean and snug so nothing physically wrong Not sure how to test that item with a multimeter or light / power on / power off etc. Going out to see if I can find an ignition module and coil and see if that's the culprit. I'm also wondering if I fried the ECU. They are a nightmare to remove in these things I've been told. They are also about $500-$700 to buy over here. Not including shipping so I bloody well hope it's not that !!! More to come in the next bulletin, now back to you in the studio.... [ATTACH=full]122505[/ATTACH] [ATTACH=full]122506[/ATTACH] [ATTACH=full]122507[/ATTACH] [ATTACH=full]122508[/ATTACH] [/QUOTE]
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Jeep Wrangler YJ
YJ General Discussion
Non starting after new thermostat and heater core flush
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