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Home >> Lexus >> 1997 >> SC 400 V8-4.0L (1UZ-FE) >> Repair and Diagnosis >> Cruise Control >> Relays and Modules - Cruise Control >> Cruise Control Module >> Testing and Inspection >> Back-up Power Source Circuit
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Back-up Power Source Circuit

CIRCUIT DESCRIPTION
The ECU back-up power source provides power even when the ignition is off and is used for DTC memory, etc..





WIRING DIAGRAM








INSPECTION PROCEDURE
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