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OnStar doesn't have a named fuse. The Radio and Infotainment System are two separate fuses. You need a good auto-electrician to find the source of the parasitic draw, not find a way around it. You can test it yourself. Put an ammeter on the battery and pull one fuse at a time while someone observes the ammeter. Pulling one fuse will be the cause of the drain and show a drop in discharge. That is the circuit where the issue it. There is always a small amount of drain from the ECM, clock, security system etc.
OnStar is tied into the radio and the bcm, if it is not working it could be very expensive to fix. Since the system uses satellite technology, it could be a bad antenna, bad transmitter etc.
Not the Onstar. You have an amp in it that needs rewired. Color code for wires are so different. I use an ohm meter to fix the problem. Just a note. Onstar does't work after this.
CANDACE, WHAT ARE YOU ASKING? HOW DOES IT WORK,OR YOURS DOESN'T WORK,, BETTER TAKE IT TO YOUR CHEVROLET DEALER ASK FOR SERVICE MANAGER SHOW HIM WHAT IT IS OR ISN'T DOING! HE WILL GUIDE YOU!
The amount of Drain from On-Star is Extremely Minimal, You probably have another drain that is causing your drain. I would Troubleshoot that drain. A drain of 50mA is acceptable
Okay, i will start by saying this is a job that should only be done by someone who works on cars, first thing first is if your car has onstar you must disable the back up onstar battery, if power is removed the back battery will be turned on and run until it drains out and then will need to be replaced , does not matter if you reconnect battery quickly. so first make sure key is off and out of ignition next open driver door , leave open , dissconnect battery, this way the back onstar battery is not turned on.
With that done you will next remove the belt then remove the front alternator bolt.then you will need to drain and remove the radiator,next you will need to raise and support car, remove front splash sheild, next loosen rear alternator bracket from engine.
Remove top bolt,front lower mounting bolt and lower rear mounting bolt, remove upper rear mounting bolt. Remove air duct from rear of alternator. Disconnect wiring from alternator. next remove front alternator/ A/C bracket. rotate alternator and remove. To install reverse procedure . GOOD DAY.
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