Scan Tool Data Definitions

8 DIGIT GM PART NUMBER: Displays the part number for the control module.

BATTERY VOLTAGE: DISPLAYS 0 to 25.5 volts. The battery voltage level at the module.

CALIBRATION ID: Displays the calibration ID for the control module.

COMPONENT SERIAL #8-11: Digits 8 to 11 of the component serial number of the control module.

COMPONENT SERIAL #12: Digit 12 of the component serial number of the control module.

COMPONENT SERIAL #13-16: Digits 13 to 16 of the component serial number of the control module.

COMPONENT SERIAL #17-18: Digits 17 to 18 of the component serial number of the control module.

CONTROL POWER: Displays Off or On. The commanded state of the control power terminal.

DAYTIME RUNNING LAMP: Displays Off or On. The commanded state of the DRL relay.

FLASH TO PASS SWITCH: Displays Off or On. The status of the flash to pass switch.

FLUORESCENT LIGHT: Displays 0 to 100%. The fluorescent light level of the instrument cluster.

FRONT FOGLAMP RELAY: Displays Off or On. The commanded state of the front fog lamp relay.

FRONT FOG LAMP SWITCH: Displays Off or On. The status of the front fog lamp switch.

HAZARD LAMP SWITCH: Displays Off or On. The status of the hazard lamp switch.

HEAD LAMP SWITCH: Displays Off or On. The status of the headlamp switch.

HIGH BEAM OUTPUT: Displays Off or On. The commanded state of the flash to pass control terminal.

HIGH BEAM OUTPUT (FLASH TO PASS): Displays Off or On. The commanded state of the flash to pass control terminal.

HOOD JAMB SWITCH: Displays Off or On. The status of the hood jamb switch.

INCANDESCENT DIM #1: Displays the percentage of dimming sent to the incandescent lamps.

INTERIOR DIM POT: Displays 0-5 volts. The interior dimmer switch input signal.

INTERIOR LAMP INPUT: Displays Off or On. The status of the inadvertent power input.

INTERIOR LAMP SWITCH: Displays Auto or On. The status of the interior lamp switch.

INTERIOR LIGHTING RELAY: Displays Off or On. The commanded state of the interior lamp relay.

JULIAN DATE OF BUILD: Displays year and day. The first digit indicates the last digit of the year that the control module was built. The remaining 3 digits indicate the day of the year that the control module was built.

LEFT TURN SIGNAL: Displays Off or On. The status of the discrete left turn signal. The instrument cluster uses this input to determine when to flash the left turn indicator.

LOW/HIGH BEAM OUTPUT: Displays Off or On. The commanded state of the headlamp control terminal.

OVERHEAD LAMPS OUTPUT: Displays Off or On. The status of the CTSY LP 1 terminal.

PARK LAMP: Displays Off or On. The status of the park lamp switch.

PARK LAMP RELAY OUTPUT: Displays Off or On. The commanded state of the park lamp relay.

POSITION LAMP DISABLE: Displays Off or On. The commanded state of the standing lamp relay.

PROM ID: Displays the PROM ID for the control module.

REVERSE LAMP RELAY: Displays Off or On. The commanded state of the reverse lamp relay.

RIGHT TURN SIGNAL: Displays Off or On. The status of the discrete right turn signal. The instrument cluster uses this input to determine when to flash the right turn indicator.

TRAILER DETECTION INPUT: Displays Off or On. The status of the trailer detect terminal.

TWILIGHT DELAY POT: Displays 0-5 volts. The twilight delay switch input signal.

TWILIGHT PHOTOCELL: Displays 0-5 volts. The ambient light sensor input signal.

VF DIM: Displays Off or On. The vacuum fluorescent (VF) display dimming level of the instrument cluster.

WIPER SWITCH: Displays Off or On. The status of the wiper switch.

YEAR MODULE BUILT: Displays the year that the control module was built.