Vehicle Electrical System (BNSG)

Fault code 0003

Control unit faulty

Diagnostic conditions
- Ignition on
- Internal vehicle electrical system control module function test

Possible causes of fault
- Internal system fault, limited functionality (vehicle electrical system control module faulty)

Affected pins
-

Diagnosis/troubleshooting

NOTE:
- Before replacing the control module, the ground connections, power supply and plug connections on the control module must be checked.
- When replacing the vehicle electrical system control module, observe the coding of the control module.
- After the test drive, read out the fault memory with the Porsche System Tester II No. 9588 again. Additional causes of faults that could damage the vehicle electrical system control module should be detected and remedied.