ENTRY AND START SYSTEM - ON-VEHICLE INSPECTION

1. CHECK POWER SOURCE MODE CHANGE FUNCTION

Check the function of the engine switch.

Start function has different power source mode patterns to suit the clutch pedal condition.

Clutch Pedal	Power Source Mode Pattern
Depressed	When the engine switch is pushed once. off → engine start on (ACC) → engine start on (IG) → engine start
Not depressed	Each time the engine switch is pushed. off → on (ACC) → on (IG) → off
-	When the engine switch is pushed in the on (IG) condition (engine running). on (IG) → off

Check if power source mode changes without pressing the engine switch.

With power source mode on (ACC), wait for at least 1 hour. Check that power source mode changes from on (ACC) to off automatically.

2. CHECK INDICATOR CONDITION

Check the indicator on the engine switch.

Check that the engine switch indicator turns on and changes color according to the table below.

Power Source Mode/Condition	Indicator Light Condition
Power Source Mode/Condition	Clutch pedal released	Clutch pedal depressed
off	OFF	Turns ON (Green) (Key ID matches vehicle)
on (ACC, IG)	Turns ON (Amber)	Turns ON (Green)
Engine running	OFF	OFF
Steering lock not unlocked	Flashes (Green) for 30 sec.	Flashes (Green) for 30 sec.
System malfunction	Flashes (Amber) for 15 sec.	Flashes (Amber) for 15 sec.
Clutch start switch malfunction	Flashes (Green) for 15 sec.	Flashes (Green) for 15 sec.

LEXUS IS250, IS220d / GSE20 ALE20

Entry And Start System - On-Vehicle Inspection