Tuffy Tire & Auto Service Center - Grandview
1524 W 5th Ave
Columbus, OH
Closed
Opens 8:00 AM Mon
Excite Auto Repair & Towing
3430 Westerville Road
Columbus, OH
Closed
Opens 9:00 AM Mon
All In Auto Service
5200 Fisher Road
Columbus, OH
Closed
Opens 8:00 AM Mon
Tuffy Tire & Auto Service - Grove City
2131 Stringtown Rd
Grove City, OH
Closed
Opens 7:30 AM Mon
Blackstone Complete Auto Care
4800 Sinclair Road
Columbus, OH
Closed
Opens 9:00 AM Mon
Boyd's Tire & Service - Columbus
5263 Godown Rd
Columbus, OH
Closed
Opens 8:00 AM Mon
B1516 was code sent . I have tested connection and found above readings. I just don't know where to go from here . I suppose the dealer with there Tech II scanner . I Think they made this system for there benefit . Consumer has no way of accessing this BCM .
Ok, That is most commonly a bad battery, and based on the 10.3v measurement it sounds like the battery sensor is telling you the voltage is below the lower threshold of 11.5 volts.
I had a charging system failure back in April. The lights would dim every time I took my foot off accelerator pedal . Found a bad battery connection and fix that had alternator tested was good . Van died while driving home from work . System went to power save mode and shut down . SO I changed the Alternator put new cables on replaced battery changed battery current sensor . All this and shortly after revived code B1516 . The battery current sensor came in two voltages 5V or 10 Volt this voltage is what activates the magnetic coit in the battery current sensor it is a hall effect monitors voltage at ground cable. Mine is a 10 v which is why the connector reads 10.3 on both inside terminal and outside which I was told was correct voltage . The wire in center is .17 to .19 which is the read from hall effect to BCM this should be .23 to .25 . Thats the problem and I do not understand why this is out of spec. I am going to take to a Chevy dealer so the can read exactly why this voltage is wrong I will post outcome so we all know .
Are all of the negative battery cables connected to the battery running through it?
yes
Ok, How are you getting the .17 to .19? Should be backprobing. Also, see if turning on the rear window defroster and headlamps (KOEO) force a change. This is targeting the electrical power management system which is controlled by the BCM.
Yes I am back probing and as for the voltage my read is 13.3 volts weather I turn on a/c rear defogger headlights high beam it always reads 13.2 volts at charge , but it should go up to 15 volts with everything on after 1 min. or so.