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1999
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Golf (1J1) 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 17964
DTC 17964
P1556/VAG 17964 = Charge Pressure Control Negative Deviation. Check Wastegate bypass regulator.
[1]
[2]
Output Diagnostic Test Mode (DTM)