For 1990-2009 cars only
8 Digit GM Part Number: The scan tool displays the part
number for the instrument panel cluster (IPC).
ABS Input: The scan tool displays Off or On. Indicating the state of the back-up ABS indicator signal. The IPC compares this to the class 2 serial data message, indicating the ABS status, in order to determine if the instrument panel cluster loses communication with the electronic brake control module (EBCM).
Battery Volts: The scan tool displays 0 to 19 volts. The voltage at the battery positive voltage circuit of the IPC.
Brake Fluid Level: The scan tool displays OK or Low. The IPC monitors the brake fluid level switch signal circuit. A closed switch is displayed as Low.
Calibration ID: The scan tool displays the calibration ID for the control module.
Component Serial No. 8-11: The scan tool displays digits 8 to 11 of the component serial number of the control module.
Component Serial No. 12: The scan tool displays digit 12 of the component serial number of the control module.
Component Serial No. 13-16: The scan tool displays digits 13 to 16 of the component serial number of the control module.
Component Serial No. 17-18: The scan tool displays digits 17 to 18 of the component serial number of the control module.
Display Mode Switch: The scan tool displays Off or On. The IPC monitors the signal circuit of the DSPL MODE button of the DIC. A closed switch is displayed as On.
Display Trip Reset Sw.: The scan tool displays Off or On. The IPC monitors the signal circuit of the TRIP RESET button of the DIC. A closed switch is displayed as On.
Driver Door Ajar Sw.: The scan tool displays Off or On. The driver door module monitors the driver door ajar switch. A closed switch with the driver door open, is displayed as On.
ECT Sensor: The scan tool displays -40 to +215°C (-40 to +419°F). The powertrain control module (PCM) monitors the voltage at the signal circuit of the engine coolant temperature (ECT) sensor. The voltage is inversely proportional to the engine coolant temperature.
Engine Oil Level Switch: The scan tool displays OK or Low. The PCM monitors the signal circuit of the engine oil level switch. A closed switch is displayed as OK.
Engine Oil Pressure Switch: The scan tool displays OK or Low. The PCM monitors the signal circuit of the engine oil pressure switch. A closed switch is displayed as Low.
Engine Speed: The scan tool displays 0 to 9999 RPM. The PCM monitors the signal circuit of the engine speed sensor.
Engine Speed: The scan tool displays 0 to 7000 RPM. The IPC monitors the engine speed signal circuit from the PCM.
English/Metric Sw.: The scan tool displays Off or On. The IPC monitors the signal circuit of the ENG/MET button of the DIC. A closed switch is displayed as On.
Fluorescent Light: The scan tool displays 0 to 100%. The fluorescent light level of the instrument cluster.
Fuel Level: The scan tool displays 0 to 70 L (0 to 18.5 gal). The PCM monitors the signal circuit of the fuel level sensor in order to determine the fuel level.
Fuel Level Sensor: The scan tool displays 0 to 5 Volts. The PCM monitors the signal circuit of the fuel level sensor. The scan tool displays low voltage with low fuel level.
Head Lamp Switch: The scan tool displays Off or On. The dash integration module (DIM) monitors the signal circuit of the headlamp switch. A closed switch is displayed as On.
HUD Dimming: The scan tool displays Off or On. The instrument panel module (IPM) monitors the HUD active signal circuit.
Ignition 1: The scan tool displays Off or On. The IPC monitors the ignition 1 voltage circuit.
IMS: The scan tool displays PARK, REVERSE, NEUTRAL, DRIVE 4, DRIVE 3, DRIVE 2, DRIVE 1, or INVALID. The PCM monitors the signal circuit of the automatic transmission internal mode switch. If a valid combination of inputs is not received by the PCM, INVALID will be displayed.
Info. Reset Switch: The scan tool displays Off or On. The IPC monitors the signal circuit of the INFO RESET button of the DIC. A closed switch is displayed as On.
Information Down Switch: The scan tool displays Off or On. The IPC monitors the signal circuit of the INFO Down button of the DIC. A closed switch is displayed as On.
Information Up Switch: The scan tool displays Off or On. The IPC monitors the signal circuit of the INFO Up button of the DIC. A closed switch is displayed as On.
Julian Date of Build: The scan tool displays the 3 digit build date of the IPC.
Key In Ignition: The scan tool displays Yes or No. The IPM monitors the key in ignition signal circuit. A closed switch, with the key in the ignition, is displayed as Yes.
Left Turn Signal: The scan tool displays Off or On. The IPC monitors the left turn lamps supply voltage circuit. An active turn signal will toggle between On and Off.
Low Coolant Level: The scan tool displays OK or Low. The IPC monitors the signal circuit of the coolant level switch. Low coolant level, or a closed switch, is displayed as Low.
On/Off Switch: The scan tool displays Off or On. The IPC monitors the signal circuit of the ON/OFF button of the DIC. A closed switch is displayed as On.
Park Lamp: The scan tool displays Off or On. The dash integration module (DIM) monitors the park lamp switch on signal circuit. A closed switch is displayed as On.
Park Brake Switch: The scan tool displays Off or On. The IPC monitors the signal circuit of the park brake release switch. An applied park brake, or a closed switch is displayed as On.
PROM ID: The scan tool displays the 4 digit number that identifies the IPC PROM.
Reflective Display: The scan tool displays Off or On. The status of the reflective display on the IPC.
Right Turn Signal: The scan tool displays Off or On. The IPC monitors the right turn lamps supply voltage circuit. An active turn signal will toggle between On and Off.
Trip Odometer A/B Switch: The scan tool displays Off or On. The IPC monitors the signal circuit of the TRIP A/B button of the DIC. A closed switch is displayed as On.
Vehicle Speed: The scan tool displays 0 to 255 km/h (0 to 159 mph). The IPC monitors the vehicle speed signal circuit from the PCM.
Vehicle Speed Sensor: The scan tool displays 0 to 255 km/h (0 to 159 mph). The PCM monitors the signal circuit of the vehicle speed sensor.
VF Dim: The scan tool displays a percentage. The vacuum fluorescent (VF) display dimming percentage of the instrument cluster.
Washer Fluid Level: The scan tool displays OK or Low. The IPC monitors the signal circuit of the windshield washer fluid level switch. A closed switch is displayed as Low.
Year Module Built: The scan tool displays the 4 digit number which corresponds to the year that the IPC was manufactured.
ABS Input: The scan tool displays Off or On. Indicating the state of the back-up ABS indicator signal. The IPC compares this to the class 2 serial data message, indicating the ABS status, in order to determine if the instrument panel cluster loses communication with the electronic brake control module (EBCM).
Battery Volts: The scan tool displays 0 to 19 volts. The voltage at the battery positive voltage circuit of the IPC.
Brake Fluid Level: The scan tool displays OK or Low. The IPC monitors the brake fluid level switch signal circuit. A closed switch is displayed as Low.
Calibration ID: The scan tool displays the calibration ID for the control module.
Component Serial No. 8-11: The scan tool displays digits 8 to 11 of the component serial number of the control module.
Component Serial No. 12: The scan tool displays digit 12 of the component serial number of the control module.
Component Serial No. 13-16: The scan tool displays digits 13 to 16 of the component serial number of the control module.
Component Serial No. 17-18: The scan tool displays digits 17 to 18 of the component serial number of the control module.
Display Mode Switch: The scan tool displays Off or On. The IPC monitors the signal circuit of the DSPL MODE button of the DIC. A closed switch is displayed as On.
Display Trip Reset Sw.: The scan tool displays Off or On. The IPC monitors the signal circuit of the TRIP RESET button of the DIC. A closed switch is displayed as On.
Driver Door Ajar Sw.: The scan tool displays Off or On. The driver door module monitors the driver door ajar switch. A closed switch with the driver door open, is displayed as On.
ECT Sensor: The scan tool displays -40 to +215°C (-40 to +419°F). The powertrain control module (PCM) monitors the voltage at the signal circuit of the engine coolant temperature (ECT) sensor. The voltage is inversely proportional to the engine coolant temperature.
Engine Oil Level Switch: The scan tool displays OK or Low. The PCM monitors the signal circuit of the engine oil level switch. A closed switch is displayed as OK.
Engine Oil Pressure Switch: The scan tool displays OK or Low. The PCM monitors the signal circuit of the engine oil pressure switch. A closed switch is displayed as Low.
Engine Speed: The scan tool displays 0 to 9999 RPM. The PCM monitors the signal circuit of the engine speed sensor.
Engine Speed: The scan tool displays 0 to 7000 RPM. The IPC monitors the engine speed signal circuit from the PCM.
English/Metric Sw.: The scan tool displays Off or On. The IPC monitors the signal circuit of the ENG/MET button of the DIC. A closed switch is displayed as On.
Fluorescent Light: The scan tool displays 0 to 100%. The fluorescent light level of the instrument cluster.
Fuel Level: The scan tool displays 0 to 70 L (0 to 18.5 gal). The PCM monitors the signal circuit of the fuel level sensor in order to determine the fuel level.
Fuel Level Sensor: The scan tool displays 0 to 5 Volts. The PCM monitors the signal circuit of the fuel level sensor. The scan tool displays low voltage with low fuel level.
Head Lamp Switch: The scan tool displays Off or On. The dash integration module (DIM) monitors the signal circuit of the headlamp switch. A closed switch is displayed as On.
HUD Dimming: The scan tool displays Off or On. The instrument panel module (IPM) monitors the HUD active signal circuit.
Ignition 1: The scan tool displays Off or On. The IPC monitors the ignition 1 voltage circuit.
IMS: The scan tool displays PARK, REVERSE, NEUTRAL, DRIVE 4, DRIVE 3, DRIVE 2, DRIVE 1, or INVALID. The PCM monitors the signal circuit of the automatic transmission internal mode switch. If a valid combination of inputs is not received by the PCM, INVALID will be displayed.
Info. Reset Switch: The scan tool displays Off or On. The IPC monitors the signal circuit of the INFO RESET button of the DIC. A closed switch is displayed as On.
Information Down Switch: The scan tool displays Off or On. The IPC monitors the signal circuit of the INFO Down button of the DIC. A closed switch is displayed as On.
Information Up Switch: The scan tool displays Off or On. The IPC monitors the signal circuit of the INFO Up button of the DIC. A closed switch is displayed as On.
Julian Date of Build: The scan tool displays the 3 digit build date of the IPC.
Key In Ignition: The scan tool displays Yes or No. The IPM monitors the key in ignition signal circuit. A closed switch, with the key in the ignition, is displayed as Yes.
Left Turn Signal: The scan tool displays Off or On. The IPC monitors the left turn lamps supply voltage circuit. An active turn signal will toggle between On and Off.
Low Coolant Level: The scan tool displays OK or Low. The IPC monitors the signal circuit of the coolant level switch. Low coolant level, or a closed switch, is displayed as Low.
On/Off Switch: The scan tool displays Off or On. The IPC monitors the signal circuit of the ON/OFF button of the DIC. A closed switch is displayed as On.
Park Lamp: The scan tool displays Off or On. The dash integration module (DIM) monitors the park lamp switch on signal circuit. A closed switch is displayed as On.
Park Brake Switch: The scan tool displays Off or On. The IPC monitors the signal circuit of the park brake release switch. An applied park brake, or a closed switch is displayed as On.
PROM ID: The scan tool displays the 4 digit number that identifies the IPC PROM.
Reflective Display: The scan tool displays Off or On. The status of the reflective display on the IPC.
Right Turn Signal: The scan tool displays Off or On. The IPC monitors the right turn lamps supply voltage circuit. An active turn signal will toggle between On and Off.
Trip Odometer A/B Switch: The scan tool displays Off or On. The IPC monitors the signal circuit of the TRIP A/B button of the DIC. A closed switch is displayed as On.
Vehicle Speed: The scan tool displays 0 to 255 km/h (0 to 159 mph). The IPC monitors the vehicle speed signal circuit from the PCM.
Vehicle Speed Sensor: The scan tool displays 0 to 255 km/h (0 to 159 mph). The PCM monitors the signal circuit of the vehicle speed sensor.
VF Dim: The scan tool displays a percentage. The vacuum fluorescent (VF) display dimming percentage of the instrument cluster.
Washer Fluid Level: The scan tool displays OK or Low. The IPC monitors the signal circuit of the windshield washer fluid level switch. A closed switch is displayed as Low.
Year Module Built: The scan tool displays the 4 digit number which corresponds to the year that the IPC was manufactured.
