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Cadillac
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2005
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XLR
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Repair and Diagnosis
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Engine Performance
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System
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Engine Controls (DTC P0638 To P2095)
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DTC P0690
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Conditions for Running the DTC
Conditions for Running the DTC
The battery voltage is greater than 11 volts for more than 1.5 seconds with the ignition OFF.
DTC P0690 runs continuously once the above condition is met.