Scan Tool Data Definitions - Instrument Panel Cluster (IPC)

The IPC Scan Tool Data Definitions contains a brief description of all Lighting System related IPC parameters available on the scan tool.

Switch Dimming: The scan tool displays 0-255 counts. The switch dimming counts vary based upon the dimming switch position and ambient light level information. When the dimming switch is rotated to bright, the switch dimming counts will increase. When the dimming switch is rotated to dim, the switch dimming counts will decrease. The headlamps or parklamps must be on to read this data.

Ambient Light Sensor: The scan tool displays 0-255 counts. The counts vary based upon the ambient light level at the sensor. When the ambient light level is high the counts will increase. When the ambient light level is low the counts will decrease. The IPC uses this information for interior light dimming operation.

High Beam Lamp: The scan tool displays ON or OFF. When the multifunction switch is turned to headlamps ON and in the high beam position, the scan tool will display ON. When the high beam lamps or the headlamps are turned OFF, the scan tool displays OFF.

Head Lamp State: The scan tool displays ON or OFF. When the multifunction switch is turned to headlamps ON the scan tool displays ON. When the multifunction switch is turned to headlamps OFF the scan tool displays OFF.

Courtesy Switch: The scan tool displays Active or Inactive. When the courtesy light switch is ON, the scan tool displays Active. When the courtesy light switch is OFF, the scan tool displays Inactive.

Left Turn Signal: The scan tool displays ON or OFF. When the multifunction switch is turned to the left turn signal position the scan tool displays ON. When the left turn signal is turned OFF the scan tool displays OFF.

Right Turn Signal: The scan tool displays ON or OFF. When the multifunction switch is turned to the right turn signal position the scan tool displays ON. When the right turn signal is turned OFF the scan tool displays OFF.