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Home >> Lexus >> 2009 >> IS F V8-5.0L (2UR-GSE) >> Repair and Diagnosis >> Accessories and Optional Equipment >> Collision Avoidance and Parking Assist Systems >> Testing and Inspection >> Initial Inspection and Diagnostic Overview >> Pre-Collision System >> Diagnosis System

Diagnosis System








PRE-COLLISION: PRE-COLLISION SYSTEM: DIAGNOSIS SYSTEM

DIAGNOSIS SYSTEM

1. CHECK DLC3
(a) Check the DLC3 General Information.
2. FUNCTION OF WARNING INDICATOR AND MESSAGE





(a) If the pre-collision system is not functioning properly, the driver is warned by the master warning indicator and multi-information display warning message on the combination meter.






(b) Initial check




(1) The initial check occurs when the engine switch is off for more than 2 seconds, and then turned on (IG). The initial check consists of a pre-collision system diagnostic check with a duration of approximately 3 seconds.
(2) If a malfunction is detected during the initial check, the multi-information display will output "CHECK PCS SYSTEM " or "PCS NOT AVAILABLE NOW".
(c) Constant check
(1) The seat belt control ECU and distance control ECU constantly monitor the pre-collision system for malfunctions after the initial check approximately 3 seconds after turning the engine switch on (IG).
(2) "CHECK PCS SYSTEM" or "PCS NOT AVAILABLE NOW" is displayed on the multi-information display in the combination meter assembly when the constant check detects malfunctions in the pre-collision system.