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The module must be programmed when a new one is installed, so if you attempt to replace it the vehicle will need to be towed to the dealer for programming. My point is you need the dealer to do this repair.
BODY CONTROL MODULE AND PCM ARE THE MAJOR COMPONENTS OF SELF DIAGNOSTIC SYSTEM. BCM CONTROLS MULTITUDE OF VECHICLE FUNCTIONS THROUGH MONITORED SENSORS AND SWITCH INPUTS AND ALSO PROVIDES SELF DIAGNOSTIC CAPABILITIES.PCM PROVIDES CONTROL AND SELF DIAGNOSTIC CAPABILITIES IN RELATION TO VARIOUS ENGINE AND EMISSION RELATED COMPONENTS IT MONITORS.**** BODY CONTROL MODULE IS PART OF PCM THEY ARE COMBINED AS ONE OR BOTH IN ONE.
Sounds like your vacum control modulator and or your vacum hose that leads to your modulator might be off, loose or deteriorated possibly. Check for this.
The pcm is located on the passengers side behind the glove box.There will be 2 computers one is the bcm and the other is the pcm.The bcm is the body control module.You will have to remove the glove box to remove the pcm.Get the part number and call the parts department at the dealership and ask them which one is which.I believe it is on the kick panel.Hope this helps.Good luck.
Using the
Cadillac on-board diagnostic display you'll also see "IP"
for the IPC instrument panel, "AC" for the air conditioning
module, "TC" for traction control, "RS" for the road
suspension system, "SD" for the air bags, "PZ" for the
body control module, "CC" for the cell phone and "RF" for
the integrated radio.
C1276 Delivered Torque Signal Circuit Malfunction
Check your Trasnmission for any wrong solenoids or Torque Converter.
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