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Home >> Chevrolet >> 2008 >> Optra LS, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 2.0L (Diesel) >> Diagnostic Information and Procedures >> DTC P1691 >> DTC Descriptor

DTC Descriptor

DTC P1691

Engine Coolant Temperature (ECT) Output Circuit

DTC P1691 01

Engine Coolant Temperature (ECT) Output Circuit Short to Battery

DTC P1691 02

Engine Coolant Temperature (ECT) Output Circuit Short to Ground

DTC P1691 04

Engine Coolant Temperature (ECT) Output Circuit Open Circuit

DTC P1691 54

Engine Coolant Temperature (ECT) Output Circuit Temperature High