Defect Code 30

Diagnostic procedure not possible

Troubleshooting

All functions of the central locking system failed:

- Check all fuses.

- Check wires from fuse to ZVM, 26-pole connector Pin 3 (measure voltage with respect to ground, is approx. 12v applied?).

- Check ground connection to ZVM. 26-pole connector pin 1.

- If fuses and wires are OK., renew central locking module.

All functions of central locking system OK:

- Observe general information on display screen.

- Check RxD link to ZVM, 26-pole connector Pin 5.

- Check TxD link to ZVM, 26-pole connector Pin 6.