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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 P1253
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Conditions for Setting the DTC
Conditions for Setting the DTC
The ECM detects a short to ground on the fuel pump speed control feedback signal circuit.
The above conditions are present for more than 2 seconds.