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Volkswagen
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2001
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Jetta GL Sedan (9M2) L4-1.9L DSL Turbo (ALH)
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Repair and Diagnosis
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A L L Diagnostic Trouble Codes ( DTC )
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Testing and Inspection
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Manufacturer Code Charts
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Engine Control System
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DTC 17027
DTC 17027
SAE
VAG
Description
P0643
17027
Sensor Reference Voltage "A" Circuit High
Check Battery
Check Battery -A-
Check Generator (GEN)
Check Generator (GEN) -C-