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Toyota
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2002
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4Runner Base
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Repair and Diagnosis
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Body & Frame
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Body, Cab Control Systems
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Body Control Systems - Diagnostics
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Circuit Inspection
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Headlight Relay Circuit
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Inspection Procedure
Inspection Procedure
CHECK HARNESS AND CONNECTOR BETWEEN HEADLIGHT RELAY (MARKING: HEAD) AND BODY ECU, AND BATTERY AND HEADLIGHT RELAY .
NG Repair or replace harness or connector.
OK Check and replace body ECU.