dglange

I just replaced the battery and alternator and now my battey, vcs /vcs off light is on. I had my alternator rebuilt by a repradable alternator/starter rebuilder. after I finished installing and started my GS and checked to see if it was charging ok. I was charging at 14.5 volts. When I took it for a test drive the battery light came on and then went off. I noticed when I accelerated it came on and when i came to a stop it would turn off. After 5 min of driving the VCS / VCS off light comes on and stays on. Now both lights are on. however the battery light still goes on and off.

Debonair

Did you get your alternator built to have a higher output then normal?

Standard voltage is 13.2-14.8 V. When you accelerate the voltage may be getting higher then the normal 14.8 V cap and therefore setting off the Battery light. When you slow down the voltage is prob dropping to 14.5 which is in spec so the light goes out.

dglange

No, I just had them rebuild to factory specs... is the causing the vsc light come on? I guess it possible they beefed it up a little.

kingkirby

iTrader: (1)

try resetting your ecu. its in the fuse box by the battery.

dglange

I unpluged the battery for 5 min... will that work or do i need to unplug the ecu?

kingkirby

iTrader: (1)

try waiting longer than 5. maybe 15? i think i had a similar problem way back. and i took out the ecu fuse for a bi and it went away.

dglange

i reset the ecu and still same issue... if the alternator is over powered will that cause the vsc light to come on?

dglange

Great news... I took the alternator back to rebuild people and the checked it out and it had a defective regulator. They replaced it. I reinstalled the alternator and it works perfectly. Thank you all for your input!!!!

jspecdan

good to know you got it fixed