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2002
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Jimmy 2D Utility, Part Time, Standard
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Repair and Diagnosis
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Engine Controls Self-Diagnostics - 4.3L
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Diagnostic Tests
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DTC P1639: 5-Volt Reference 2 Circuit
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Notes
DTC P1639: 5-Volt Reference 2 Circuit: Notes
NOTE:
To locate components, see
COMPONENT LOCATIONS
. For circuit reference, see WIRING DIAGRAMS article. For connector terminal identification, see
CONNECTOR IDENTIFICATION
.