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Home >> Lexus Truck >> 2007 >> GX 470 V8-4.7L (2UZ-FE) >> Repair and Diagnosis >> Relays and Modules >> Relays and Modules - Accessories and Optional Equipment >> Emergency Contact Module >> Testing and Inspection >> Component Tests and General Diagnostics

Component Tests and General Diagnostics

ECU Power Source Circuit

DESCRIPTION
This circuit supplies power to operate the Mayday ECU assembly.

Wiring Diagram:





INSPECTION PROCEDURE

Step 1:




Step 1 (Continued)-3:




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