BCM Replacement
Replace the BCM only if diagnostics in this section directs you specifically to do so. Most system problems are traceable to faulty wiring, to connectors, or to components. The BCM itself is very reliable and is not likely the cause of a fault. Do not replace the BCM before performing a complete diagnosis or recurrence of the fault will likely occur. Note: Every input to the BCM is short to ground and short to battery protected. Every output from the BCM is short to ground and short to battery protected. Therefore, the BCM does not automatically need to be replaced when there is a short found in the wiring connected to it. Repair the wiring first, then check the system for any further problem.
BCM Programming
When a BCM is replaced, it must be programmed with the Vehicle Identification Number (VIN) of the vehicle that it is being installed in. The RadioTheftlock feature uses the VIN to verify that the radio has not been removed and improperly installed in another vehicle.
The programming of the BCM is accomplished by using a scan tool. The vehicles VIN is entered in the scan tool and then transmitted via a Class 2 physical message to the BCM. The BCM stores the VIN in EEPROM. The first communication between the BCM and radio re-arms the Radio Theftlock. To set up a new BCM, select SETUP NEW BCM from the BCM Special Functions menu and follow the instructions on the screen.
Body Control Module (BCM)
Mounted on the RH Kick Pad, behind the trim panel
SOURCE: Need to know location of heater control relay in Cadillac Catera
Most likely the K134 multifunction relay. Not a major expense to fix.
SOURCE: Where is the body control module located on 2000 yukon
under the dash on the drivers side. above the break pedal
Testimonial: "Thank you for your help. The module was in the location you described. "
SOURCE: Needing to know what a BCM(Body Control Module) does.
it control warning
door locks
lights
alarm
SOURCE: where is the body control
BCM OR DASH INTEGRATION MODULE LOCATED UNDER DASH JUST FOLLOW YELLOW WIRES FROM IGNITION SWITCH TO THE BCM ITS A SMALL BOX UNDER DASH IN A BRACKET.
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