BCM Scan Tool Data Definitions

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

Data

Console Switch Illumination: The scan tool displays 0-100%. The illumination percentage varies based upon the dimming switch information sent by the IPC on the serial data line. When the dimming switch is rotated to bright, the console switch illumination percentage will increase. When the dimming switch is rotated to dim, console switch illumination percentage will decrease. The headlamps or parklamps must be ON to read console illumination data.

DRL Ambient Light Sensor: The scan tool displays 0-5.0 volts. The voltage level varies based upon the ambient light level at the sensor. When light levels are high (Light), voltage will increase. When light levels are low (Dark), voltage will decrease. The BCM uses this information for automatic headlamp operation.

Fog Light Illumination: The scan tool displays 0-100%. The illumination percentage varies based upon the dimming switch information sent by the IPC on the serial data line. When the dimming switch is rotated to bright, the fog light switch illumination percentage will increase. When the dimming switch is rotated to dim, fog light switch illumination percentage will decrease. The headlamps or parklamps must be ON to read fog light illumination data.

HVAC Bulb Illumination: The scan tool displays 0-100%. The illumination percentage varies based upon the dimming switch information sent by the IPC on the serial data line. When the dimming switch is rotated to bright, the HVAC illumination percentage will increase. When the dimming switch is rotated to dim, HVAC illumination percentage will decrease. The headlamps or parklamps must be ON to read HVAC illumination data.

PRNDL Illumination: The scan tool displays 0-100%. The illumination percentage varies based upon the dimming switch information sent by the IPC on the serial data line. When the dimming switch is rotated to bright, the PRNDL illumination percentage will increase. When the dimming switch is rotated to dim, PRNDL illumination percentage will decrease. The headlamps or parklamps must be ON to read PRNDL illumination data.

Input Data 1

Backup Light Request: The scan tool displays Active or Inactive. When the BCM energizes the backup light relay, the scan tool will display Active. When the BCM de-energizes the backup light relay, the scan tool will display Inactive.

Front Fog Light Switch: The scan tool displays Active or Inactive. When the front fog light switch is pressed, the scan tool will display Active. When the switch is released, the scan tool displays Inactive.

Headlamp Off Switch: The scan tool displays Active or Inactive. When the headlamps are OFF, the scan tool will display Active. When the headlamps are ON, the scan tool displays Inactive.

Inadvertent Load Monitor: The scan tool displays active or inactive. When the BCM energizes the inadvertent load monitor relay the scan tool will display active. When the BCM de-energizes the inadvertent load monitor relay the scan tool will display inactive. The inadvertent load monitor system is used for battery run down protection. The BCM removes battery voltage to accessories that were left on by de-energizing the monitored load relay.

Left Turn Monitor: The scan tool displays Active or Inactive. When the BCM detects the left turn signal is ON, the scan tool will display Active. When the BCM detects the left turn signal is OFF, the scan tool will display Inactive.

Left Turn Signal Relay: The scan tool displays Active or Inactive. When the BCM energizes the left DRL relay, the scan tool will display Active. When the BCM de-energizes the left DRL relay, the scan tool will display Inactive.

Rear Fog Light Switch: The scan tool displays Active or Inactive. When the rear fog light switch is pressed, the scan tool will display Active. When the switch is released, the scan tool displays Inactive.

Right Turn Monitor: The scan tool displays Active or Inactive. When the BCM detects the right turn signal is ON, the scan tool will display Active. When the BCM detects the right turn signal is OFF, the scan tool will display Inactive.

Right Turn Signal Relay: The scan tool displays Active or Inactive. When the BCM energizes the right DRL relay, the scan tool will display Active. When the BCM de-energizes the right DRL relay, the scan tool will display Inactive.

Input Data 2

Driver Door Ajar Switch: The scan tool displays Open or Closed. When the driver door is open, the scan tool will display Open. When the driver door is closed, the scan tool displays Closed.

Passenger Door Ajar Switch: The scan tool displays Open or Closed. When the passenger door is open, the scan tool will display Open. When the passenger door is closed, the scan tool displays Closed.

IPC Scan Tool Data Definitions

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

Data 2

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.

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.

Inputs

Brake Lamp: The scan tool displays ON or OFF. When the brake lamps are ON, the scan tool displays ON. When the brake lamps are OFF, the scan tool displays OFF.

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

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.

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.

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.

Park Brake Switch: The scan tool displays Active or Inactive. When the park brake is applied, the scan tool displays active. When the park brake is OFF, the scan tool displays inactive.

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.

LDCM Scan Tool Data Definitions

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

Data

Door Switch Pad Illumination: The scan tool displays 0-100%. The illumination percentage varies based upon the dimming switch information sent by the IPC on the serial data line. When the headlamps or parklamps are ON, and the dimming switch is rotated to bright, the LH door switch illumination percentage will increase. When the dimming switch is rotated to dim the LH door switch illumination percentage will decrease.

Inputs

Door Ajar: The scan tool displays Closed or Ajar. When the driver door is open the scan tool displays Ajar. When the driver door is closed the scan tool displays closed.

RDCM Scan Tool Data Definitions

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

Data

Door Switch Pad Illumination: The scan tool displays 0-100%. The illumination percentage varies based upon the dimming switch information sent by the IPC on the serial data line. When the headlamps or parklamps are ON, and the dimming switch is rotated to bright, the RH door switch illumination percentage will increase. When the dimming switch is rotated to dim the RH door switch illumination percentage will decrease.

Inputs

Door Ajar: The scan tool displays Closed or Ajar. When the passenger door is open the scan tool displays Ajar. When the passenger door is closed the scan tool displays closed.