ELECTRICAL 223 5.5 CRASH UNLOCK (AUTO DOOR UNLOCK ON IMPACT SENSE) 5.5.1 Description Crash Unlock is a safety feature which shall unlock all doors irrespective to any condition in case of a crash. When crash is detected, vehicle can be locked again only if the crash signal is restored to active high status. For added safety, auto lock and Auto relock feature shall get disabled when crash is detected. In Base and Mid BCM variants, the crash input is received from the inertia switch. 5.5.2 Conditional Requirements When Crash is active (Crash signal is High), then BCM shall perform following, when ignition is ON state. Unlocks all the doors Roof Lamp shall turn ON All external turn indicators shall turn ON along with telltales on instrument cluster. New lock request should be considered after IGN cycle if vehicle is unlocked because of CRASH unlock. i.e. BCM will start receiving the lock and unlock commands after IGN cycle irrespective of CRASH signal status 5.5.3 Operating Voltage Range DESCRIPTION REQUIREMENT VOLTAGE Crash Unlock (Auto door unlock on impact sense) Normal operating voltage 12V Min & Max operating voltage range 9V-16V 5.5.4 Inputs & Outputs
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