Question about Cars & Trucks
Yes it does - you loaded to much power to your unit - probably popped an internal capacitor.
Posted on Jan 15, 2013
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Posted on Jan 02, 2017
SOURCE: 24 volt charging problems .2
A 12 volt battery is actually 13.2 volts fully charged. If you are reading 16 volts, you are probably getting extranious voltage from the system somewhere, especially if the vehicle is running when you check the voltage. The alternator will put out about 15-18 volts to charge the battery normally, and yours may put out 28-32 volts to charge them in series, but the batteries, when disconnected, should never read more than about 13.2 volts each. Typically, it will read about 12 1/2 volts when disconnected. COMPLETELY DISCONNECT BOTH OF THE BATTERIES. If you still read 16 volts when it is disconnected, you must have a bad meter because the battery can't produce that much voltage, no matter what. (Six 2.2 volt cells connected in series inside the case.) Put the meter on a known good battery on another car that is not running and see if you get the same reading. It sounds like the other battery is almost dead, regardless, and it sounds like your series/parallel switch may be malfunctioning. (That is the switch that puts the battery in series to run the 24 volt starter, then puts the batteries in parallel to run the remainder of the vehicle on 12 volts. This is all assuming that you have a diesel vehicle with a 24 volt starter and that is why you have two batteries.
Posted on Aug 19, 2008
SOURCE: Truck wont start.
if you are uplugging coil and reading voltage on leads, u are reading in series withe the pcm, not voltage across coil. i have done this and read 4.9 volts. u must leave the coil connected and read the voltage across the coil by pinning the coil lead wires (green/orange and black/light gray) with the voltmeter leads or connect the meter leads at the asd relay in box on the left fender well (green/orange) and on the top row on the pcm connector on the right fender well (light gray). i did this too and read 0 volts, this means the circuit is not turned on thru the computer i think. otherwise it would read 12 volts. i havent found out why it isnt on. if someone knows, please tell us. i have had this intermittent problem for years. i have read that if the camshaft position sensor is bad, the asd relay wont be picked up. i dont know if the same thing happens if the crankshaft position sensor is bad but my guess is it does, which makes me wonder about the computer, which i replaced 2 years ago.
Posted on Oct 16, 2009
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