Lighting System

HIGH BEAM
The Lighting Control Module (LCM) illuminates the high beam indicator in the IPC when the LCM detects that the high beams are requested. The IPC sends a class 2 message to the BCM indicating the status of the indicator.

HIGH BEAM (WITH HUD)
The Head Up Display (HUD) illuminates the high beam indicator when the IPC sends a signal requesting illumination.

TURN SIGNALS
The left and right turn signal indicators are hard wired to the turn signal switch and the hazard switch. The turn signal indicator illuminates when the turn signal lamps supply voltage circuit is active. If the IPC determines that the turn signal is active for more than 1.29 km (0.8 mile), the IPC sends a class 2 message to the BCM in order to activate an audible warning.

TURN SIGNALS (WITH HUD)
The head up display (HUD) illuminates the turn signal indicators when the IPC sends a signal requesting illumination.

MALFUNCTION INDICATOR LAMP (MIL)
The PCM illuminates the MIL (service engine soon or check engine) when the following occurs:
^ The PCM detects a malfunction in the emissions system.
^ The PCM performs the displays test at the start of each ignition cycle. The indicator illuminates for approximately 3 seconds.
^ The ignition is on, with the engine off.