LEMON Manuals
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Toyota
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2003
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ECHO 2D Sedan, Standard
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Repair and Diagnosis
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Engine Performance
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System
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Engine Controls - Self Diagnostics
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Diagnostic Tests
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DTC P0116: Engine Coolant Temperature Circuit Range/Performance Problem & DTC P0125: Insufficient Coolant Temperature For Closed Loop Fuel Control
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Possible Causes
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Possible Causes
Defective cooling system.
Defective engine coolant temperature sensor.