Scan Tool Data Definitions

AIR BAG LAMP: The scan tool displays On/Off. The state of the air bag indicator as commanded by the IPC.

AM LAMP: The scan tool displays On/Off. The state of the AM indicator as reported by the radio.

ANTILOCK BRAKE: The scan tool displays On/Off. The state of the ABS indicator as requested by the Electronic Brake Control Module (EBCM).

ANTILOCK LAMP: The scan tool displays On/Off. The state of the ABS indicator as commanded by the PC.

BATTERY LAMP (DIC W/BOOST): The scan tool displays On/Off. The state of the charging system indicator as commanded by the PC.

BATTERY VOLTAGE: The scan tool displays 0-19 volts. The voltage measured at the battery positive voltage circuit of the IPC.

BOOST: The scan tool displays 10-105 kPa (1-15 psi). The Manifold Absolute Pressure (MAP) as determined by the PCM.

BRAKE LAMP: The scan tool displays On/Off. The state of the brake system indicator as commanded by the IPC.

CASSETTE LAMP: The scan tool displays On/Off. The state of the cassette indicator as reported by the radio.

CD CHANGER DISC NUMBER: The scan tool displays the number of the current CD as reported by the radio.

CD CHANGER TRACK NUMBER: The scan tool displays the number of the current track as reported by the radio.

CD LAMP: The scan tool displays On/Off. The state of the CD indicator as reported by the radio.

CHECK GAGES LAMP: The scan tool displays On/Off. The state of the CHECK GAGES indicator in the systems monitor as commanded by the PC.

CHECK GAGES LAMP: The scan tool displays On/Off. The state of the CHECK GAGES indicator in the HUD as requested by the IPC.

CHECK OIL LEVEL LAMP: The scan tool displays On/Off. The state of the CHECK OIL LEVEL indicator in the systems monitor as commanded by the PC.

COMPONENT SERIAL #: The scan tool displays the serial numbers of the HUD.

DIC MODE BUTTON: The scan tool displays On/Off. The IPC monitors the MODE button of the DIC switch, where a closed switch is displayed as On.

DIC RESET BUTTON: The scan tool displays On/Off. The IPC monitors the RESET button of the DIC switch, where a closed switch is displayed as On.

DIC SELECT BUTTON: The scan tool displays On/Off. The IPC monitors the SELECT button of the DIC switch, where a closed switch is displayed as On.

DOOR ALAR LAMP: The scan tool displays On/Off. The state of the DOOR AJAR indicator in the systems monitor as commanded by the IPC.

ECT SENSOR: The scan tool displays -40-151°C (-40-304°F). The PCM monitors the voltage at the signal circuit of the engine coolant temperature sensor. The voltage is inversely proportional to the engine coolant temperature.

ENGINE OIL LEVEL SWITCH: The scan tool displays OK/Low. The PCM monitors the signal circuit of the engine oil level switch, where an open switch is displayed as Low (low engine oil level).

ENGINE OIL LIFE REMAINING: The scan tool displays 0-100%. The PCM calculates the remaining engine oil life.

ENGINE OIL PRESSURE SENSOR: The scan tool displays 0-19 volts. The PCM monitors the signal circuit of the engine oil pressure sensor.

ENGINE SPEED: The scan tool displays 0-9999 RPM. The IPC monitors the engine speed signal circuit from the PCM.

ENGINE SPEED: The scan tool displays 0-9999 RPM. Engine speed is computed by the PCM from the 3X reference input. It should remain close to desired idle under various engine loads with the engine idling.

ENGLISH/METRIC STATUS: The scan tool displays English/Metric. The state of the units displayed on the HUD as requested by the IPC.

ENGLISH/METRIC SW.: The scan tool displays Active/Inactive. The IPC monitors the E/M button of the DIG switch, where a closed switch is displayed as Active.

FASTEN SEAT BELTS: The scan tool displays On/Off. The state of the fasten safety belt indicator as commanded by the IPC.

FM LAMP: The scan tool displays On/Off. The state of the FM indicator as reported by the radio.

FUEL TANK LEVEL REMAINING: The scan tool displays 0-100%. The PCM calculates the amount of fuel remaining in the tank based on the signal circuit of the fuel level sensor. The IPC receives a class 2 message from the PCM indicating the fuel level percent.

HIGH BEAM LAMP: The scan tool displays On/Off. The state of the high beam indicator as commanded by the IPC.

HIGH BEAM SWITCH: The scan tool displays On/Off. The state of the high beam indicator on the HUD as requested by the Dash Integration Module (DIM).

IGNITION 1: The scan tool displays On/Off. The IPC monitors the ignition 1 voltage circuit. The scan tool displays On when there is voltage present.

IGNITION 3: The scan tool displays On/Off. The HUD monitors the ignition 3 voltage circuit. The scan tool displays On when there is voltage present.

IGNITION COUNTER: The scan tool displays 0-50. The IPC counts the number of times the ignition is cycled.

IGNITION COUNTER: The scan tool displays 0-50. The HUD counts the number of times the ignition is cycled.

IGNITION VOLTAGE: The scan tool displays 0-19 volts. The voltage measured at the ignition 3 voltage circuit of the HUD.

JULIAN DATE OF BUILD: The scan tool displays the 3 digit build date of the PC.

JULIAN DATE OF BUILD: The scan tool displays the 3 digit build date of the HUD.

KEY IN IGNITION: The scan tool displays Yes/No. The instrument panel integration module (1PM) (with CJ2) or the HVAC control module (GCP) (with C67) monitors the ignition key alarm switch, where a closed switch is displayed as Yes (key is in the ignition).

KM/H (MPH EXPORT) LAMP: The scan tool displays On/Off. The state of the km/h (MPH export) indicator as commanded by the PC.

LOW BRAKE FLUID: The scan tool displays On/Off. The IPC monitors the brake fluid level indicator switch, where a closed switch is displayed as On (low brake fluid).

LOW FUEL LAMP: The scan tool displays On/Off. The state of the low fuel indicator on the HUD as requested by the IPC.

LOW TRACTION LAMP: The scan tool displays On/Off. The state of the LOW TRAC indicator as commanded by the IPC.

LOW WIPER FLUID: The scan tool displays On/Off. The IPC monitors the windshield washer fluid level switch, where a closed switch is displayed as On (low washer fluid).

LOW WIPER FLUID LAMP: The scan tool displays On/Off. The state of the WASHER FLUID indicator in the systems monitor as commanded by the IPC.

LT. TURNING SIGNAL SW.: The scan tool displays On/Off. The PC monitors the left turn signal supply voltage circuit, where an active turn signal toggles between On and Off.

LT. TURNING SIGNAL SW.: The scan tool displays On/Off. The HUD monitors the left turn signal supply voltage circuit, where an active turn signal toggles between On and Off.

MAP SENSOR: The scan tool displays 10-1 OS kPa (1-15 psi)/0-5 volts. The PCM monitors the signal circuit of the Manifold Absolute Pressure (MAP) sensor. The IPC receives a class 2 message from the PCM indicating the manifold pressure in order to control the boost gauge.

MPH (KM/H EXPORT) LAMP: The scan tool displays On/Off. The state of the MPH (km/h export) indicator as commanded by the IPC.

OUTSIDE STATUS: The scan tool displays Day/Night. The time of day as determined by the Instrument Panel Integration Module (IPC) or the HVAC control module (CCP) via the ambient light sensor.

PARK BRAKE SWITCH: The scan tool displays On/Off. The PC monitors the park brake switch, where a closed switch is displayed as On.

PARK LAMP: The scan tool displays On/Off. The Dash Integration Module (DIM) monitors the headlamp switch, where a closed switch is displayed as On (headlamp switch is in the park or head position).

PRNDL DRIVE (AMBER): The scan tool displays On/Off. The state of the amber drive (D) indicator as commanded by the IPC.

PRNDL DRIVE (RED): The scan tool displays On/Off. The state of the red drive (D) indicator as commanded by the IPC.

PRNDL NEUTRAL (AMBER): The scan tool displays On/Off. The state of the amber neutral (N) indicator as commanded by the IPC.

PRNDL NEUTRAL (RED): The scan tool displays On/Off. The state of the red neutral (N) indicator as commanded by the IPC.

PRNDL PARK (AMBER): The scan tool displays On/Off. The state of the amber park (P) indicator as commanded by the IPC.

PRNDL PARK (RED): The scan tool displays On/Off. The state of the red park (P) indicator as commanded by the IPC.

PRNDL REVERSE (AMBER): The scan tool displays On/Off. The state of the amber reverse (R) indicator as commanded by the IPC.

PRNDL REVERSE (RED): The scan tool displays On/Off. The state of the red reverse (R) indicator as commanded by the IPC.

PRNDL 1ST (AMBER): The scan tool displays On/Off. The state of the amber first gear (1) indicator as commanded by the IPC.

PRNDL 1ST (RED): The scan tool displays On/Off. The state of the red first gear (1) indicator as commanded by the IPC.

PRNDL 2ND (AMBER): The scan tool displays On/Off. The state of the amber second gear (2) indicator as commanded by the IPC.

PRNDL 2ND (RED): The scan tool displays On/Off. The state of the red second gear (2) indicator as commanded by the IPC.

PRNDL 3RD (AMBER): The scan tool displays On/Off. The state of the amber third gear (3) indicator as commanded by the IPC.

PRNDL 3RD (RED): The scan tool displays On/Off. The state of the red third gear (3) indicator as commanded by the PC.

PROM ID: The scan tool displays the 4 digit number that the identifies the IPC PROM.

PROM ID: The scan tool displays the 4 digit number that the identifies the HUD PROM.

RADIO FREQUENCY: The scan tool displays the radio frequency as reported by the radio.

RT. TURNING SIGNAL SW.: The scan tool displays On/Off. The IPC monitors the right turn signal lamps supply voltage circuit, where an active turn signal toggles between On and Off.

RT. TURNING SIGNAL SW.: The scan tool displays On/Off. The HUD monitors the right turn signal lamps supply voltage circuit, where an active turn signal toggles between On and Off.

SECURITY LAMP: The scan tool displays On/Off. The state of the SECURITY indicator as commanded by the IPC.

SERIAL NUMBER: The scan tool displays the 4 digit serial number.

SINGLE CD DISC NUMBER: The scan tool displays the number of the current CD as reported by the radio.

SINGLE CD TRACK NUMBER: The scan tool displays the number of the current track as reported by the radio.

SVS LAMP (DIC W/O BOOST): The scan tool displays On/Off. The state of the SERVICE VEHICLE SOON indicator as commanded by the IPC.

TIRE RESET SWITCH: The scan tool displays On/Off. The PC monitors the TIRE RESET button of the DIC switch, where a closed switch is displayed as On.

TRACTION OFF LAMP: The scan tool displays On/Off. The state of the TRAC OFF indicator as commanded by the PC.

TRIP RESET SWITCH: The scan tool displays On/Off. The IPC monitors the TRIP RESET button of the DIC switch, where a closed switch is displayed as On.

TRUNK AJAR LAMP: The scan tool displays On/Off. The state of the TRUNk AJAR indicator in the systems monitor as commanded by the IPC.

VEHICLE SPEED: The scan tool displays 0-255 km/h (0-155 mph). The IPC monitors the vehicle speed signal circuit from the PCM.

VEHICLE SPEED: The scan tool displays 0-255 km/h (0-155 mph). The HUD monitors the vehicle speed signal circuit from the PCM.

VEHICLE SPEED SENSOR: The scan tool displays 0-255 km/h (0-155 mph). The PCM monitors the voltage at the signal circuit of the vehicle speed sensor. The voltage is proportional to the vehicle speed.

VF DIM: The scan tool displays 0-19 volts. The HUD monitors the VF dimming signal circuit of the HUD switch.

YEAR MODULE BUILT: The scan tool displays the 4 digit number which corresponds to the year the IPC was manufactured.

YEAR MODULE BUILT: The scan tool displays the 4 digit number which corresponds to the year the HUD was manufactured.

8 DIGIT GM PART NUMBER: The scan tool displays the GM part number of the PC.

8 DIGIT GM PART NUMBER: The scan tool displays the GM part number of the HUD.

"For a description of the RPO Code(s) shown in this article or any of the images therein, refer to the RPO Code List found at Vehicle/Application ID". RPO Codes