Mike's Workshop Manuals
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2008
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Allure Super
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Repair and Diagnosis
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Engine Performance
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System
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Engine Control System & Fuel System - 5.3L - DTC P0420 To DTC P3449
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DTC P1682
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Conditions for Running the DTC
Conditions for Running the DTC
The ignition is ON.
System voltage is more than 5.23 volts.
The powertrain relay is commanded ON.
DTC P1682 runs continuously.