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you need to find what code has set the light on then you will know which sensor is causing the problem.it maybe a component like a wheel sensor,tone ring,abs module or anything else in the system causing the light to come that`s why you need to have the code to go further.
The vehicle's Powertrain Control Module (PCM), is a powerful on-board
computer that controls most powertrain related functions, hence its
name. Earlier versions were often called the Engine Control Module (ECM)
but as the computers have become more advanced and, as more and more
demands have been placed on them to control more driveline functions,
the computers have come to be called Powertrain Control Modules, more
accurately reflecting its increased role in vehicle operations.
The PCM in your W-Body vehicle is located underhood, in front of the right strut tower near the engine coolant reservoir.
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you have an abs code in the abs module that needs to be checked out and repaired,it could be something simple like a bad connections or broken wire or something more involved.the cruise is disabled as a safety thing.
It may be an ABS sensor... however you'll want to get those ABS codes read. A regular code reader doesn't do that, you'll need a specific ABS code reader or take it to a shop.
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