GM Service Manual Online
For 1990-2009 cars only

Climate Control Panel (CCP)

8 Digit GM Part Number: Scan tool displays: part number - Display indicates the part number of the CCP.

Calibration ID: Scan tool displays: number - Display indicates the 4 digit calibration ID of the CCP.

Interior Dim Pot: Scan tool displays: volts - Display indicates the IP dimmer switch input signal, 0.09 -- 4.75 volts is the normal operating rang.

Interior Lamp Switch: Scan tool displays: On/Off - Display indicates the state of the interior lamp switch.

PROM ID: Scan tool displays: number - Display indicates the 4 digit PROM ID of the CCP.

Twilight Delay Pot: Scan tool displays: volts - Display indicates the twilight delay switch input signal, 0.09 -- 4.75 volts is the normal operating range.

Twilight Photocell: Scan tool displays: volts - Display indicates the ambient light sensor input signal, 0.09 -- 4.75 volts is the normal operating range.

Drivers Door Module (DDM)

8 Digit GM Part Number: Scan tool displays: part number - Display indicates the part number of the DDM.

Battery Voltage: Scan tool displays: volts - Display indicates the battery voltage input, 0 -- 30 volts is the operating range.

Calibration ID: Scan tool displays: number - Display indicates the 4 digit calibration ID of the DDM.

Drivers Door Jamb Switch: Scan tool displays: On/Off - Display indicates the state of the drivers door jamb switch. On indicates the door is open and Off indicates the door is closed.

Left Rear Door Jamb Sw.: Scan tool displays: On/Off - Display indicates the state of the left rear door jamb switch. On indicates the door is open and Off indicates the door is closed.

Pass. Door Jamb Sw.: Scan tool displays: On/Off - Display indicates the state of the right front door jamb switch. On indicates the door is open and Off indicates the door is closed.

PROM ID: Scan tool displays: number - Display indicates the 4 digit PROM ID of the DDM.

Rt. Rear Door Jamb Switch: Scan tool displays: On/Off - Display indicates the state of the right rear door jamb switch. On indicates the door is open and Off indicates the door is closed.

Dash Integration Module (DIM)

8 Digit GM Part Number: Scan tool displays: part number - Display indicates the part number of the DDM.

Battery Voltage: Scan tool displays: volts - Display indicates the battery voltage input, 0 -- 30 volts is the operating range.

Calibration ID: Scan tool displays: number - Display indicates the 4 digit calibration ID of the DDM.

Daytime Running Lamp: Scan tool displays: On/Off - Display indicates the commanded state of the daytime running lamp relay.

Flash to Pass Switch : Scan tool displays: On/Off - Display indicates the state of the flash to pass switch.

Head Lamp Switch : Scan tool displays: On/Off - Display indicates the state of the flash to pass switch signal. On indicates the flash to pass headlamps are requested on.

High Beam Output <Flash: Scan tool displays: On/Off - Display indicates the commanded state of the high beam relay.

Incandescent Dim #1: Scan tool displays: On/Off - Display indicates the state of the incandescent lamp ground circuit.

Lights On with Wipers: Scan tool displays: On/Off - Display indicates the state of the wiper/washer system.

Low Beam Output: Scan tool displays: On/Off - Display indicates the commanded state of the low beam relay.

Park Lamp: Scan tool displays: On/Off - Display indicates the state of the park lamp switch.

Park Lamp Relay Output: Scan tool displays: On/Off - Display indicates the commanded state of the park lamp relay.

PROM ID: Scan tool displays: number - Display indicates the 4 digit PROM ID of the DIM.

Heads Up Display (HUD)

8 Digit GM Part Number: Scan tool displays: part number - Display indicates the part number of the HUD.

Calibration ID: Scan tool displays: number - Display indicates the 4 digit calibration ID of the HUD.

Highbeam Switch: Scan tool displays: On/Off - Display indicates the state of the headlamp high beam switch.

Lt. Turning Signal Sw.: Scan tool displays: On/Off - Display indicates the state of the left turn signal switch.

PROM ID: Scan tool displays: number - Display indicates the 4 digit PROM ID of the HUD.

Rt. Turning Signal Sw.: Scan tool displays: On/Off - Display indicates the state of the right turn signal switch.

Instrument Panel Cluster (IPC)

8 Digit GM Part Number: Scan tool displays: part number - Display indicates the part number of the IPC.

Battery Voltage: Scan tool displays: volts - Display indicates the battery voltage input, 0 -- 30 volts is the operating range.

High Beam Lamp: Scan tool displays: On/Off - Display indicates the state of the headlamp high beam switch

Lt. Turning Signal: Scan tool displays: On/Off - Display indicates the state of the left turn signal switch.

PROM ID: Scan tool displays: number - Display indicates the 4 digit PROM ID of the IPC.

Rt. Turning Signal Sw.: Scan tool displays: On/Off - Display indicates the state of the right turn signal switch.

Serial Number: Scan tool displays: number - Display indicates the serial number of the IPC.

Instrument Panel Module (IPM)

8 Digit GM Part Number: Scan tool displays: part number - Display indicates the part number of the IPM.

Calibration ID: Scan tool displays: number - Display indicates the 4 digit calibration ID of the IPM.

Interior Dim Pot: Scan tool displays: volts - Display indicates the IP dimmer switch input signal, 0.09 -- 4.75 volts is the normal operating rang.

Interior Lamp Switch: Scan tool displays: On/Off - Display indicates the state of the interior lamp switch.

PROM ID: Scan tool displays: number - Display indicates the 4 digit PROM ID of the IPM.

Twilight Delay Pot: Scan tool displays: volts - Display indicates the twilight delay switch input signal, 0.09 -- 4.75 volts is the normal operating range.

Twilight Photocell: Scan tool displays: volts - Display indicates the ambient light sensor input signal, 0.09 -- 4.75 volts is the normal operating range.

Rear Integration Module (RIM)

8 Digit GM Part Number: Scan tool displays: part number - Display indicates the part number of the RIM.

Battery Voltage: Scan tool displays: volts - Display indicates the battery voltage input, 0 -- 30 volts is the operating range.

Calibration ID: Scan tool displays: number - Display indicates the 4 digit calibration ID of the RIM.

Drivers Door Jamb Switch: Scan tool displays: On/Off - Display indicates the state of the drivers door jamb switch. On indicates the door is open and Off indicates the door is closed.

Inadvertent Power Input: Scan tool displays: On/Off - Display indicates the state of the inadvertent power.

Inadvertent Power Relay: Scan tool displays: On/Off - Display indicates the commanded state of the inadvertent power relay.

Left Rear Door Jamb Sw.: Scan tool displays: On/Off - Display indicates the state of the left rear door jamb switch. On indicates the door is open and Off indicates the door is closed.

Overhead Lamps Output: Scan tool displays: On/Off - Display indicates the commanded state of the overhead lamps.

Pass. Door Jamb Sw.: Scan tool displays: On/Off - Display indicates the state of the right front door jamb switch. On indicates the door is open and Off indicates the door is closed.

PROM ID: Scan tool displays: number - Display indicates the 4 digit PROM ID of the RIM.

Reverse Lamp Relay: Scan tool displays: On/Off - Display indicates the commanded state of the reverse lamp relay.

Rt. Rear Door Jamb Switch: Scan tool displays: On/Off - Display indicates the state of the right rear door jamb switch. On indicates the door is open and Off indicates the door is closed.