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 precollision 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.