Control Unit Input Test / Trunk Opener

Control Unit Input Test

Multiplex Control Unit (Passenger's)/Passenger's Multiplex Control Unit Connectors/Door Multiplex Control Unit Connector:

Inspect the connector and socket terminals to be sure they are all making good contact.
- If the terminals are bent, loose or corroded, repair them as necessary, and recheck the system.
- If the terminals look OK, make the following input tests at the connector.
- If any test indicates a problem, find and correct the cause, then recheck the system.
- If all the input tests prove OK, the control unit must be faulty; replace it.