GX 470 V8-4.7L (2UZ-FE) (2004)
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The first letter indicates the basic wire color and the second letter indicates the color of the stripe.
I: Indicates a wiring Splice Point (Codes are "E" for the Engine Room, "I" for the Instrument Panel, and "B" for the Body).
The Location of splice Point I5 is indicated by the shaded section.
J: Indicates a shielded cable.
K: Indicates the pin number of the connector. The numbering system is different for female and male connectors.
L: Indicates a ground point.
The first letter of the code for each ground point(s) indicates the component's location, e.g, "E" for the Engine Compartment, "I" for the Instrument
Panel and Surrounding area, and "B" for the Body and Surrounding area.
N: 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.
