Operation CHARM
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2000
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GS 400 V8-4.0L (1UZ-FE)
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ECU Power Source Circuit
ECU Power Source Circuit
CIRCUIT DESCRIPTION
The ECU Power Source supplies power to the CPU and sensors, etc. Power is supplied to the ECU even when the ignition switch is lock position.
WIRING DIAGRAM
Step 1:
Step 2:
Step 3:
INSPECTION PROCEDURE