Fail-Safe Chart

PRE-COLLISION: PRE-COLLISION SYSTEM (w/o Driver Monitor Camera): FAIL-SAFE CHART

1. FAIL SAFE FUNCTION

(a) When a malfunction occurs in part of the pre-collision system, "Check PCS system" or "PCS not Available Now" is displayed on the multi-information display. Depending on the malfunction, the pre-collision system may stop operating.

(b) When the driving support ECU determines that obstacle recognition is not possible due to dirt on the radiator grille, or front millimeter wave radar sensor, or due to snow or other adverse conditions, "PCS not Available Now" is displayed on the multi-information display, and operation of systems not controlled by the seat belt control ECU are stopped. Also, when obstacle recognition becomes possible, the display stops and normal control returns.

(c) If seat belt control ECU overheating prevention function operates, "PCS not Available Now" is displayed on the multi-information display, and pre-collision seat belt control operation stops. Also, when the temperature drops and pre-collision seat belt control becomes possible, the display stops and normal control returns.

(d) If there is a malfunction in the object recognition camera or driver monitor camera, "Check PCS system" is displayed on the multi-information display, and only the front millimeter wave radar sensor is able to determine when there is a collision. However, the control operation does not stop.