2009 Cadillac Escalade EXTFACTORY OEM SERVICE PROCEDURE

Control Units

CONTROL UNITS LOCATION

Component Location
Accessory AC/DC Power Control Module Behind left rear quarterpanel. See Figure.
Accessory DC Power Control Module Top of engine. See Figure.
Assist Step Control Module Under left center of vehicle. See Figure.
Automatic Transmission Auxiliary Fluid Pump Control Module Left side of engine compartment. See Figure.
Blower Motor Control Module Bottom center of HVAC module. See Figure.
Blower Motor Control Module - Auxiliary (Long Wheel Base) (5) Rear HVAC blower motor. See Figure.
Blower Motor Control Module - Auxiliary (Short Wheel Base) (6) Rear HVAC blower motor. See Figure.
Body Control Module (BCM) Left side of dash. See Figure.
Climate Control Seat Module (Passenger) Under front passenger's seat. See Figure.
Drive Motor Generator Battery Control Module On drive motor generator battery. See Figure.
Drive Motor Generator Power Inverter Module Right side of engine compartment. See Figure.
Electrical Suspension Control (ESC) Module Above spare tire. See Figure.
Electronic Brake Control Module (EBCM) Left rear frame rail. See Figure.
Electronic Power Steering Motor Control Module Under drive motor generator power inverter module. See Figure.
Electronic Suspension Control (ESC) Module Left rear of frame chassis. See Figure.
Engine Control Module (ECM) (Except Hybrid) Left side of engine compartment. See Figure.
Engine Control Module (ECM) (Hybrid) Left front of engine compartment. See Figure.
Fuel Pump Control Module (FPCM) On left front frame rail. See Figure.
Fuel Pump Flow Control Module (FPFCM) On left side of frame assembly, below driver's seat. See Figure.
Heated Seat Module - Rear Under left rear seat. See Figure.
Heated Steering Wheel Control Module (1) In steering wheel. See Figure.
HVAC Control Module - Auxiliary Center of headliner. See Figure.
Inflatable Restraint Front Passenger Presence System (PPS) Module Under front passenger's seat. See Figure.
Inflatable Restraint Sensing & Diagnostic Module (SDM) Under driver's seat. See Figure.
Memory Seat Module - Driver Under driver's seat. See Figure.
Object Alarm Module Under front passenger's seat. See Figure.
Power Liftgate Module Left rear of cargo area. See Figure.
Rear View Camera Image Display Module Under front passenger's seat. See Figure.
Rear Window Wiper Module In liftgate.
Serial Data Gateway (SDG) Module Left side of dash. See Figure.
Sunroof Module Front of headliner. See Figure.
Theft Deterrent Control Module (8) On ignition switch. See Figure.
Transfer Case Shift Control Module Left end of dash. See Figure.
Transmission Control Module (TCM) Left side of engine compartment. See Figure.
Vehicle Communication Interface Module (VCIM) Center of dash. See Figure.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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