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Home >> Suzuki >> 2008 >> Grand Vitara Base, AWD, Standard >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine General Information & Diagnosis >> Diagnostic Information And Procedures >> DTC P1116: Engine Coolant Temperature Circuit Performance at Engine Soaking >> System Description
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System Description

ECM monitors ECT sensor to ensure that temperature has dropped to environmental temperature. After 5 hours (using timer module) from engine stop, the system wakes up ECM and measures ECT and IAT signal. If difference between ECT and IAT is more than the criteria, ECM will set DTC.

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