GM Service Manual Online
For 1990-2009 cars only
Table 1: DIM
Table 2: Driver Door Module
Table 3: Instrument Cluster (IPC)
Table 4: IPM
Table 5: Left Rear Door Module
Table 6: Passenger Door Module
Table 7: Right Rear Door Module
Table 8: RIM

DIM

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Ignition ON/Engine OFF

Battery Voltage

Data

Volts

12.8 V

Control Power

Outputs

On/Off

Off

Daytime Running Lamp

Outputs

On/Off

On

Flash to Pass Switch

Inputs

On/Off

Off

Front Fog Lamp Relay

Outputs

On/Off

Off

Head Lamp Switch

Inputs

On/Off

Off

High Beam - Flash to Pass

Outputs

On/Off

Off

Hood Jamb Switch

Inputs

On/Off

Off

Incandescent Dim #1

Outputs

Numeric

0%

Low/High Beam Output

Outputs

On/Off

Off

Park Lamp

Inputs

On/Off

Off

Park Lamp Relay Output

Outputs

On/Off

Off

Position Lamp Relay

Outputs

On/Off

Off

Lights On With Wipers

Inputs

On/Off

Off

Driver Door Module

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Ignition ON/Engine OFF/Transmission shift lever in the PARK position/All lighting turned OFF/All doors closed

Battery Voltage

Data

Volts

12.8 V

Drivers Door Jamb Sw.

Inputs

ON/OFF

OFF

Switch Dimming

Outputs

Active/Inactive

Active

Instrument Cluster (IPC)

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Ignition ON/Engine OFF

Fluorescent Light

Data

%

99%

Left Turn Signal

Inputs

On/Off

Off

Right Turn Signal

Inputs

On/Off

Off

VF Dim

Data

%

98%

IPM

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Ignition ON/Engine OFF

Front Fog Lamp Switch

Non-HVAC Data

On/Off

Off

Hazard Lamp Switch

Non-HVAC Data

On/Off

Off

Interior Dim Pot

Open/Short Data

Counts

14 Counts

Interior Lamp Switch

Non-HVAC Data

On/Auto

Auto

Twilight Delay Pot

Open/Short Data

Counts

14 Counts

Ambient Light Sensor

Open/Short Data

Counts

110 Counts

Left Rear Door Module

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Ignition ON/Engine OFF/Transmission shift lever in the PARK position/All lighting turned OFF/All doors closed

Battery Voltage

Data

Volts

12.8 V

Left Rear Door Jamb Sw.

Inputs

ON/OFF

OFF

Switch Dimming

Outputs

Active/Inactive

Active

Passenger Door Module

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Ignition ON/Engine OFF/Transmission shift lever in the PARK position/All lighting turned OFF/All doors closed

Battery Voltage

Data

Volts

12.8 V

Pass. Door Jamb Sw.

Inputs

ON/OFF

OFF

Switch Dimming

Outputs

Active/Inactive

Active

Right Rear Door Module

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Ignition ON/Engine OFF/Transmission shift lever in the PARK position/All lighting turned OFF/All doors closed

Battery Voltage

Data

Volts

12.8 V

Rt. Rear Door Jamb Sw.

Inputs

ON/OFF

OFF

Switch Dimming

Outputs

Active/Inactive

Active

RIM

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Ignition ON/Engine OFF

Battery Voltage

Data

Volts

12.6 V

Interior Lamp Input

Inputs

On/Off

Off

Interior Lighting Relay

Outputs

On/Off

On

Overhead Lamps Output

Outputs

On/Off

Off

Reverse Lamp Relay

Outputs

On/Off

Off

Trailer Detection Input

Inputs

On/Off

Off