Diagnosis System

PRE-COLLISION: PRE-COLLISION SYSTEM: DIAGNOSIS SYSTEM

DIAGNOSIS SYSTEM

1. INITIAL CHECK
(a) 2 seconds or more after turning the engine switch off, turning the engine switch on (IG) causes the pre-collision system to perform an initial check for approximately 3 seconds.
(b) If a malfunction is detected in the initial check, after the 3 second initial check, the combination meter assembly's multi-information display displays "Check PCS system".
HINT: "Check PCS system" is displayed when a pre-collision system malfunction has been detected and a DTC is output.

2. CONSTANT CHECK
(a) After the 3 second initial check, the seat belt control ECU and driving support ECU control the system, and perform a constant check to monitor the system.
(b) If a malfunction is detected in the constant check, the combination meter assembly's multi-information display displays "Check PCS system" or "PCS not Available Now".
HINT: "PCS not Available Now" is displayed during the following conditions: 1) the seat belt control ECU's overheat protection function has operated; 2) due to bad weather, the radar can detect obstacles; 3) foreign matter is attached to the grille cover or front millimeter wave radar sensor assembly; or 4) foreign matter is attached to the rear bumper or rear millimeter wave radar sensor assembly.