B HOW TO USE THIS MANUAL [O] SYSTEM OUTLINE Current is applied at all times through the STOP fuse to TERMINAL 2 of the stop light SW. When the ignition SW is turned on, current flows from the GAUGE fuse to TERMINAL 8 of the light failure sensor, and also flows through the rear lights warning light to TERMINAL 4 of the light failure sensor.
STOP LIGHT DISCONNECTION WARNING When the ignition SW is turned on and the brake pedal is pressed (Stop light SW on), if the stop light circuit is open, the current flowing from TERMINAL 7 of the light failure sensor to TERMINALS 1, 2 changes, so the light failure sensor detects the disconnection and the warning circuit of the light failure sensor is activated. As a result, the current flows from TERMINAL 4 of the light failure sensor to TERMINAL 11 to GROUND and turns the rear lights warning light on. By pressing the brake pedal, the current flowing to TERMINAL 8 of the light failure sensor keeps the warning circuit on and holds the warning light on until the ignition SW is turned off.
[P] [Q] : PARTS LOCATION [R] : RELAY BLOCKS [S] @@@ ЂЂЂ ААА [T] [U] : GROUND POINTS [V] : SPLICE POINTS 2002 LEXUS LX 470 (EWD455U) 6 SERVICE HINTS S6 STOP LIGHT SW 2–1 : Closed with the brake pedal depressed L4 LIGHT FAILURE SENSOR 1, 2, 7–GROUND : Approx. 12 volts with the stop light SW on 4, 8–GROUND : Approx. 12 volts with the ignition SW at ON position 11–GROUND : Always continuity SERVICE HINTS Code See Page Code See Page Code See Page C7 34 L4 36 R7 37 H17 36 R6 37 S6 35 Code See Page Relay Blocks (Relay Block Location) 1 18 R/B No.1 (Instrument Panel Left) @À @À @À@À @À@À :
JUNCTION BLOCK AND WIRE HARNESS CONNECTOR Code See Page Junction Block and Wire Harness (Connector Location) IB 20 Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) 3C 22 Instrument Panel Wire and J/B No.3 (Instrument Panel Left Side) :
CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS Code See Page Joining Wire Harness and Wire Harness (Connector Location) IE1 42 Floor Wire and Instrument Panel Wire (Left Kick Panel) BV1 50 Luggage Room Wire and Floor Wire (Luggage Compartment Left) Code See Page Ground Points Location BL 50 Under the Left Quarter Pillar BO 50 Back Panel Center Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points I5 44 Cowl Wire B18 50 Luggage Room Wire