LEMON Manuals
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Suzuki
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2006
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Forenza Base, 4D Sedan, Automatic
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Repair and Diagnosis (Single Page)
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Engine Performance
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Engine Control Systems
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Engine Performance - DTC P0016 - P0141
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DTC P0128: Engine Coolant Temperature (ECT) Below Thermostat Regulating Temperature
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Conditions for Setting the DTC
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Conditions for Setting the DTC
No disabling faults present.
Engine is running.
Minimum Intake Air Temperature (IAT) is greater than -7 °C (19.4 °F).
ECT sensor reading is less than expected after the engine runs for a certain period.