Need info of battery cable

BG1988

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Need some info on the battery cable for the negative cable

Does anyone know where the smaller wire goes??

photo of it's location would be nice also
 

BG1988

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i think i fixed it is 14.55V good voltage?? i drove it like 10 miles it reported 14.49-14.55volts from the OBD reader the whole time
before it would drop to 13.2-13.1
no engine revving and funky 1-2 shifts also noted the battery is also running cooler



cleaned up all the terminals and Heavy DUTY cleaning of the negative post
 
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Brandon2489

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That small wire goes to the front right of the frame. Easier to get at if you remove the front bumper from what my memory serves me.
 

BG1988

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That small wire goes to the front right of the frame. Easier to get at if you remove the front bumper from what my memory serves me.
I found the issue I don't kno how to remove it anyways


100% working now getting 14.55 volts steady out of the inverter(what the BCM/OBD2 is seeing ) before it was all over the place
the battery is able to keep it's chargef
 

BG1988

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well today it was lower today so i checked the nuts and one of them was loose so i tighten them again and 14,4 volts decent it started at 14.9 then settles (as reported on the OBD reader)


it is an electrical issue Gotta clean more ground wires :D


The battery is seeing 14.66 to 14.72Volts (had it checked out at a place that does alternators and starters ) (had my dads Deno Alternator Refurbished for the corolla )

key off voltage is 12.3v So i must not be driving it enough



but other components are see less like 13.8.0-14.1 unstable this means current is being impeded...

so i think some more grounds need cleaning


it did shutter today twice
 
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