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Porsche
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2004
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911 Carrera 4S Cabriolet (996) F6-3.6L
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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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P Code Charts
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P1603
P1603
P1603
102, CAN timeout, PSM not sending any information
Diagnosis conditions
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Ignition on
Possible fault cause
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Fault in PSM system
Diagnosis/troubleshooting