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Old Aug 12, 2019 | 12:57 AM
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lovecross
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Joined: Jun 2013
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From: Escape from So-Cal
Question Re: Starter wont engage.

Originally Posted by RL67037
Thanks ala_xfire for the confirmation of what I am doing!!

UPDATE:

Once the battery was fully charged (per the battery charger indication), checking it with a DVM it is reading 12.7VDC. I was under the impression that it should be a bit more than 14VDC when fully charged?

I jumped Pin 6 of C106 (Engine side) to the car battery positive post and the starter cranked, so the starter is good.

I measured the voltage at Pin 6 of C106 (Engine Compartment Side) when the key is turned to start (several times) and I get about 1/2 second of between 12 and 13VDC (around 12.5) and then it drops to 0VDC, so the pulse module is allowing the voltage through but not for long - is that what it's supposed to do?

Since I was getting that 12.+VDC spike at C106, I connected C106 and tried to start the car and the starter would not engage at all.

I'm thinking it's the battery unless that pulse module is not allowing a long enough voltage when the key is turned, but if it's the battery, why would jumping the starter with the battery engage the starter (battery is strong enough) but going through the starting circuit not work? Also, even with that short spike of voltage from the pulse module, I would think the starter would at least bump a little. When I was jumping the starter to the battery, it would kick immediately when I would touch the jumper wire to the positive post - no hesitation.

Again - thanks in advance for your advice.
I'm just a fly on the wall here...but, imho...@ 6 years old, it is Time for a new battery, charged before install, (if rcm is good). For the past 3 years, ours was not driven much either. Whenever she sits for more than a week, I put an automatic 3 amp charger on and leave it on till the next time on the road. (Using Napa #8448, maintenance free, conventional, "legend" battery.) Small price to pay for periodic maintenance.
 
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