what all does the bcm control?
Thread Starter
Burning Brakes
Joined: Oct 2004
Posts: 984
Likes: 23
From: Florence SC
what all does the bcm control?
Does the BCM keep track of total milage? There is a cluster posted on the for sale forum and it list the mileage when removed. I changed a cluster on a 96 and the same mileage reappeared with the new cluster. I was told at the dealership that the BCM kept up with mileage. Did GM change things on the C5? Thanks 
Safety Car
Joined: Aug 2000
Posts: 4,933
Likes: 30
From: San Rafael CA
The Instrument Panel Cluster (IPC) ... basically the gauge panel ... keeps track of the odometer mileage in a C5. Even most dealers cannot change the reading as a Tech2 cannot alter this data in the IPC. Dealers and other shops have to send the units out to be "reset" by an "authorized" cluster repair center. The BCM does not track vehicle mileage on a C5.
Safety Car
Joined: Aug 2000
Posts: 4,933
Likes: 30
From: San Rafael CA
There are companies that repair/program the IPC such as ...
http://www.s10clusterrepair.com/
or
http://www.paspeedo.com/index.htm (They're a very good shop - used by many top car restorers to rebuild gauges for antique cars)
It may seem old school, but the auto makers realized that as they went to "electronic" odometers they needed to make it DIFFICULT to change the odometer. If it was easy, then over time none of us would trust the odometer reading in a car.
