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2000
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911 Carrera 4 Cabriolet (996) F6-3.4L
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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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PCM - Porsche Communication System
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Test Point 21
Test Point 21
Test point 21
Fault, memory interface Value range
Fault code 40
Replace display and operator control unit.