Cayenne S (9PA) V8-4.5L (2003)
Part 2
Cause of error '2', expected control module message missing/no communication possible with control module:
NOTE:
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Before replacing the control module, the ground connections, power supply and plug connections on the control module must be checked.
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When replacing the control unit, observe the coding.
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After the test drive, read out the fault memory with the 9588 Porsche System Tester II again. Additional causes of faults that could damage the
control module should be detected and remedied.