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SYSTEM EXL-9 < SYSTEM DESCRIPTION > C D E F G H I J K M A B EXL N O P WITH DAYTIME LIGHT SYSTEM : System Diagram INFOID:0000000009269601 WITH DAYTIME LIGHT SYSTEM : System Description INFOID:0000000009269602 The headlamp system is equipped with a daytime light relay 1 that activates the high beam headlamps at approximately half illumination whenever the engine is operating and the lighting switch is in the OFF position. If the parking brake is applied before the engine is started the daytime lights will not be illuminated. The day- time lights will illuminate once the parking brake is released. With the lighting switch in the 2nd position the headlamps function the same as conventional light systems. The BCM monitors inputs from the parking brake switch and the lighting switch to determine when to activate the daytime light system. The BCM sends a daytime light request to the IPDM E/R via the CAN communica- tion lines. The IPDM E/R grounds the daytime light relay 1 which in turn, provides power to the ground side of the LH high beam lamp. Power flows backward through the LH high beam lamp to the IPDM E/R, through fuse 35, fuse 34 and to the RH high beam lamp and on to ground. The high beam lamps are wired in series which causes them to illuminate at a reduced intensity. FRONT FOG LAMP SYSTEM INFOID:0000000009269603 FRONT FOG LAMP SYSTEM : System Description INFOID:0000000009269604 FRONT FOG LAMP OPERATION When the combination switch (lighting and turn signal switch) is in front fog lamp ON position and also in 1ST or 2ND position (headlamp is ON), the BCM detects FR FOG ON and the HEAD LAMP 1 or 2 ON. The BCM sends a front fog lamp request ON signal through the CAN communication lines to the IPDM E/R. The IPDM E/R then turns ON the front fog lamp relay sending power to the front fog lamps. AWLIA1885GB AWLIA1886GB |