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Chevrolet
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2008
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Optra LS, Automatic
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Repair and Diagnosis
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Engine Performance
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System
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Engine Controls And Fuel - 2.0L (Diesel)
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Diagnostic Information and Procedures
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DTC P1663
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Conditions for Setting the DTC
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P1663 54
P1663 54
The ECM detects that the internal output driver is over temperature.