LEMON Manuals
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Toyota
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2003
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Matrix Base, 4WD
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Repair and Diagnosis (Single Page)
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Engine Control System Self Diagnostics
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Diagnostic Tests
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DTC P0116: Engine Coolant Temperature Circuit Range/Performance Problem
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Possible Causes
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Possible Causes
Defective cooling system.
Defective engine coolant temperature sensor.
Defective thermostat.