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Home >> Suzuki >> 2005 >> Verona EX >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine General Information And Diagnosis >> Diagnostic Information and Procedures >> DTC P1668 Engine Coolant Temperature Output Circuit >> Circuit Description
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Circuit Description

The engine coolant temperature gauge is directly controlled by the Engine Control Module (ECM) based on information received from the Engine Coolant Temperature (ECT) sensor. When the key is ON, the ECM receives battery voltage from the Instrument Panel Cluster (IPC) and senses if the circuit contains a fault by using a diagnostic feedback signal.

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