06 cts theft light on, effects: windows, radio, gauges, a/c

Asked by Big Sep 02, 2023 at 02:06 PM about the 2006 Cadillac CTS 2.8L RWD

Question type: Maintenance & Repair

My 6 speed 06 cts has theft light on, I bypass the
starter to drive, windows won't work, radio turns on and
off, gauges may work, ac sometimes works, power
steering sometimes works. I got a remained ecm, my
passenger front hub wire ripped out, replaced the hub.
What else should I do

2 Answers
311,525

Gene answered about a year ago

You may not have needed an ECM, was the replacement ECM flashed for your VIN? This really sounds like a glitch in the BCM programming, as it controls everything your stated is going on, has the vehicle experienced any voltage problems, like main power disconnect or an alternator over or undercharging? A dealer will need to check it out and maybe it can be saved.

Mark helpful
158,655

James answered about a year ago

Yes, the ECM (Engine Control Module) controls the engine and transmission. The BCM (Body Control Module) controls the accessories and security system, which is what sounds like the problem is. Hope that helps! Jim

Mark helpful

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