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Toyota Truck
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1997
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4 Runner Limited 2WD V6-3.4L (5VZ-FE)
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Repair and Diagnosis
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Relays and Modules
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Relays and Modules - Cruise Control
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Cruise Control Module
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Testing and Inspection
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Back-Up Power Source Circuit
Back-Up Power Source Circuit
ECM 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
Step 1:
Step 2:
INSPECTION PROCEDURE