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Home >> Lexus >> 2005 >> SC 430 V8-4.3L (3UZ-FE) >> Repair and Diagnosis >> Accessories and Optional Equipment >> Navigation System >> Testing and Inspection >> Component Tests and General Diagnostics >> Speed Signal Circuit (Navigation ECU-Combination Meter Assy)

Speed Signal Circuit (Navigation ECU-Combination Meter Assy)

SPEED SIGNAL CIRCUIT (NAVIGATION ECU - COMBINATION METER ASSY)

CIRCUIT DESCRIPTION

The navigation ECU receives the vehicle speed signal and GPS antenna information, and then adjusts the vehicle position on the display.

Wiring Diagram:






Step 1:




Step 2:




INSPECTION PROCEDURE
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