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Home >> Lexus >> 2003 >> RX 300 AWD V6-3.0L (1MZ-FE) >> Repair and Diagnosis >> Cruise Control >> Relays and Modules - Cruise Control >> Cruise Control Module >> Testing and Inspection >> Component Tests and General Diagnostics
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Component Tests and General Diagnostics

ECU Power Source Circuit

CIRCUIT DESCRIPTION

The ECU power source supplies power to the actuator and sensors, etc, when terminal GND and the cruise control ECU case are grounded.

Wiring Diagram:






Step 1 - 2:




Step 2 (Continued) - 3:




INSPECTION PROCEDURE