Body Control Module
I need help on how to program a body control module. I have heard of a way but I am not confident enough to try it.
Anyone with knowledge of how to do this without the Tech 2 ... or any knowledge please contact me.
98 Trans Am ---- 95 Trans Am ---- 2003 Envoy
In fact, although the BCM stores DTCs (Diagnostic Trouble Codes), you don't access them with any kind of special tool. You access the DTC history using a procedure similar to programming the alarm using the ignition switch and a combination of other dash switches. It flashes the SECURITY light in the instrument cluster to display the DTCs much like the light on an answering machine shows the number of messages.






