GM Service Manual Online
For 1990-2009 cars only
Battery Voltage: Displays 0 to 30 volts. The voltage measured between the module's battery positive voltage circuit and ground circuit.

Calibrate Module: Procedure to calibrate module, follow on screen instructions

Courtesy Lamp 1,2 w/dim: Displays ON or OFF. Commands the courtesy lamps ON or OFF using the theater dimming function.

Courtesy Lamp 1,2 wo/dim: Displays ON or OFF. Commands the courtesy lamps ON or OFF. Does not use the theater dimming function.

Courtesy Lamp Switch: Displays ON or OFF. Indicates the status of the courtesy lamp switch input.

Daytime Running Lamp: Displays ON or OFF. The commanded state of the DRL relay.

Daytime Running Lamps: Displays ON or OFF. Commands the daytime running lamp relay ON or OFF.

Dimming Pot A/D: Displays 0-255 counts. Display indicates the level of incandescent dimming.

Driver Door Jamb Sw.: Displays ON or OFF. The status of the driver door jamb switch.

Flash to Pass Switch: Displays ON or OFF. Indicates the status of the flash to pass switch input.

Front Fog Lamp: Displays ON or OFF. Displays the commanded state of the front fog lamp relay.

Front Fog Lamps: Displays ON or OFF. Commands the front fog lamp relay ON or OFF.

Front Fog Lamp Switch: Displays ON or OFF. Indicates the status of the front fog lamp switch input.

Front Sensor: Displays 0-100%. Indicates the position of the front axle sensor in relationship to the zero point established during the calibration procedure.

Hazard Lamp Switch : Displays ON or OFF. Indicates the status of the hazard switch input.

Head Lamp Switch: Displays ON or OFF. Indicates the status of the headlamp switch input.

High Beam -- Flash to Pass : Displays ON or OFF. Displays the commanded state of the high beam -- flash to pass relay.

High Beam -- Flash to Pa: Displays ON or OFF. Commands the high beam relay ON or OFF.

High/Low Beam Relay: Displays ON or OFF. Displays the commanded state of the headlamp relay.

High/Low Beam Relay: Displays ON or OFF. Commands the headlamp relay ON or OFF.

Inadvertent Power Input: Displays ON or OFF. Display indicates the state of the inadvertent power.

Inadvertent Power Relay: Displays ON or OFF. Display indicates the commanded state of the inadvertent power relay.

Incandescent Dimming: Displays ON or OFF. Display indicates the state of the incandescent lamp ground circuit.

Incandescent Dimming: Displays the percentage of dimming control of the dash integration module output.

Left Rear Door Jamb Sw.: Displays ON or OFF. Indicates the status of the left rear door jamb switch.

Left Turn Signal: Displays ON or OFF. Indicates the status of the left turn signal indicator.

Lights On With Wipers: Displays ON or OFF. Indicates the status of the lights on with wipers input.

Lighting for Theft: Displays ON or OFF. Commands the theft lighting ON or OFF.

Low Beam Input: Displays 0-25.5 volts. Indicates the voltage at the low beam HID bulb.

Overhead Lamps Output: Displays ON or OFF. Indicates the status of the overhead lamps.

Park Brake Switch: Displays ON or OFF. Indicates the status of the park brake switch input.

Park Lamp Switch: Displays ON or OFF. Indicates the status of the park lamp switch input.

Park Lamp Relay: Displays ON or OFF. Displays the commanded state of the park lamp relay.

Parking Lamps Relay: Displays ON or OFF. Commands the park lamp relay ON or OFF.

Pas. Door Jamb Sw.: Displays ON or OFF. Indicates the status of the passenger door jamb switch.

Position Lamp Relay: Displays ON or OFF. Displays the commanded state of the position lamp relay.

Rear Fog Lamp Relay: Displays ON or OFF. Displays the commanded state of the rear fog lamp relay.

Rear Fog Lamp Relay: Displays ON or OFF. Commands the rear fog lamp relay ON or OFF.

Rear Fog Lamp Switch: Displays ON or OFF. Indicates the status of the rear fog lamp switch input.

Reverse Lamp Relay: Displays ON or OFF. Displays the commanded state of the reverse lamp relay.

Reverse Lamp Relay: Displays ON or OFF. Commands the reverse lamp relay ON or OFF.

Rear Sensor: Displays 0-100%. Indicates the position of the rear axle sensor in relationship to the zero point established during the calibration procedure.

Right Turn Signal: Displays ON or OFF. Indicates the status of the right turn signal indicator.

Rt Rear Door Jamb Sw.: Displays ON or OFF. Indicates the status of the right rear door jamb switch.

Stepper Motor Position: Displays 0-255 Counts. Indicates the position of the headlamp leveling stepper motor.

Stepper Motor Test: Commands the automatic headlamp leveling steeper motor to the full up or full down position.

Stoplamp Pedal Switch: Displays the position of the stop lamp pedal switch input to the engine control module.

Switch Dimming: Displays the percentage of dimming control of the appropriate door control module output.

Theft Lighting: Displays ON or OFF. Indicates the status of the theft lighting input signal.

Transmission Range: Displays PARK/REVERSE/NEUTRAL/DRIVE4/DRIVE3/DRIVE2/DRIVE1. Indicates the position of the automatic transmission shift lever.

Twilight Switch: Displays DAY or NIGHT. Indicates the status of the twilight photocell input.