55D.

55D.

Extract connectors 112 & 36 from their housings, bridge A/B coloured cables at control unit connector 112 & insert an ohmmeter between A/B coloured cables for connector 36

• Not OK → Restore cont. of A coloured cable between control unit 112 & connector 36
• OK

Extract connectors 112 & 111 from their housings, bridge A/B coloured cables at the control unit connector 112 and insert an ohmmeter between the A/B coloured cables of the lock assy 111

• Not OK → Restore the continuity of the A coloured cable between the connector 36 and the lock assembly 111
• OK

Bridge the A/N coloured cables at the left front lock assembly 111

• OK → Overhaul or replace the lock assembly 111
• Not OK

Check the condition of the left front lock assembly 111

• Not OK → Overhaul or replace the lock assembly 111

The central locking does not unlock the doors

Bridge the B coloured cable at the central locking control unit 112 with an earth

• OK → Restore the continuity of the B coloured cable between the control unit 112 and the ultrasound welding