2007 Pontiac Grand Prix BaseFACTORY OEM SERVICE PROCEDURE

Control Units

CONTROL UNITS LOCATION

Component Location
Blower Motor Control Processor On lower right side of dash. See Figure.
Body Control Module Behind left side of dash, left of steering column. See Figure.
Digital Radio Receiver Left side of rear compartment. See Figure.
Electronic Brake Control Module Left side of engine compartment, part of brake pressure modulator valve. See Figure.
Electronic Compass Module Top left side of rear package shelf. See Figure.
Ignition Control Module (ICM) (3.8L) Top left front of engine. See Figure.
Inflatable Restraint I/P Module Behind right side of dash. See Figure.
Inflatable Restraint I/P Module Connector Right side of dash. See Figure.
Inflatable Restraint Sensing & Diagnostic Module (SDM) Under right front seat. See Figure.
Powertrain Control Module (3.8L) Left front side of engine compartment, in air cleaner assembly. See Figure.
Powertrain Control Module (5.3L) Left side of engine compartment, inside air cleaner assembly. See Figure.
Radio Antenna Module Center rear of roof. See Figure.
Remote Control Door Lock Receiver (RCDLR) On rear shelf panel.
Roof Rail Module-Left Left rear of passenger compartment. See Figure.
Roof Rail Module-Right Right rear of passenger compartment. See Figure.
Theft Deterrent Exciter Module Part of ignition key cylinder. See Figure.
Throttle Actuator Control (TAC) Module (3.8L) On throttle body. See Figure.
Throttle Actuator Control (TAC) Module (5.3L) Top rear of engine. See Figure.
Transmission Control Module Left side of engine compartment, inside air cleaner assembly. See Figure.
Vehicle Communications Interface Module (VCIM) In trunk, on left wheelwell. 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:

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

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