Each of the 3 body control modules integrate a number
of functional systems under the control of a single module. Each of the modules
is connected to the Class 2 serial data line. Many control signals
are implemented by Class 2 messages.
Dash Integration Module (DIM)
The DIM functions include the following functions:
| • | Power moding control (ignition switch states) over Class 2
serial data line |
| • | Control of headlights and exterior lamps |
| • | Interior lamps incandescent dimming |
| • | Steering wheel controls |
| • | Horn relay control for theft activation |
| • | Lamps On signal with wiper/washer |
| • | Low side temperature for HVAC compressor |
| • | Cooling fan control (power - train cooling) |
| • | Incandescent dimming of dash bulbs control |
| • | Real time clock time keeper |
| • | Battery voltage sense and load management |
| • | Reverse lockout solenoid control |
Instrument Panel Module (IPM)
The IPM functions include the following functions:
| • | Front HVAC air delivery and temperature controls |
| • | Ambient light sensor input and twilight delay input for headlights
control |
| • | Traction control switch input |
| • | Interior lamps switch input |
| • | Key in ignition switch input from the ignition switch |
| • | Rear compartment lid release switch input |
| • | Ignition switch headlight control |
Rear Integration Module (RIM)
The RIM functions include the following functions:
| • | Various controls for the interior lamps |
| • | Reverse control for the backup lamps |
| • | Rear compartment lid release controls |
| • | Retained Accessory Power (RAP) control |
| • | Ajar switch and tamper switch inputs from the rear compartment
lid |
