ELECTRICAL 142 SIGNAL LEVEL TYPE Battery Voltage High Input Ignition S/W High Input Crank S/W High Input Left turn S/W Low Input Right turn S/W Low Input Remote lock button RF Input Remote unlock button RF Input Hazard s/w Low Input Trailer electric feedback Low Input Inertia s/w High Input Left indicator tell tale High Output Right indicator tell tale High Output Left indicator lamps High PWM O/P Right indicator lamps High PWM O/P Hazard warning led High PWM O/P The direction indicators can be activated by the following functions (in priority order.) crash activated hazard flash Lock/unlock feedback including vehicle seek. hazard flashing directional indicators The Direction Indicators will be activated within 100ms, from any Hard Wired switch turn signal function. The Direction indicators will be deactivated within 100ms of any function being cancelled, unless stated otherwise. The Instrument Cluster Tell Tales are connected to the dedicated left and right Tell Tale outputs for visual feedback. Audible Tic-Toc feedback is provided by the Instrument Cluster in all Vehicle Power States. The dedicated tell tale output signals are required to allow correct synchronization of the tic-toc noise with indicator operation. The following lamps will be illuminated by Hazard Light and Directional indicator functions Front, left and right Directional indicator lamps Side repeater lamp, left and right Directional indicator lamps (part of ORVM) Rear, left and right Directional indicator lamps Instrument cluster Tell Tales The front left and right Directional indicators use long life bulbs which require voltage controlled signals. All indicator bulbs with the exception of the instrument cluster tell tales and trailer turn signals will use PWM drive from the BCM outputs. The BCM must also be capable of supplying standard pulsed digital output signals to the direction indicator outputs. BCM shall flash the RH or LH directional Indicators at a fast rate of 90 ± 30 cycles with a duty cycle 50% if user selects the respective turn combination stalk BCM Microprocessor Failure If there is a microprocessor failure and user select left / right indicator from combi switch then corresponding external indicator and tell tale will be ON (not blinking) in all power states. Bulb Failure Detection The BCM shall monitor the current drawn from the Directional Indicators outputs and use this to determine whether a Directional Indicator lamp has failed.
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