Security Control Unit Input Test

Remove the dashboard lower cover (see DRIVER'S DASHBOARD LOWER COVER REMOVAL/INSTALL ).
Disconnect the 20P connector (A) and 16P connector (B) from the control unit (C).

Fig 1: Disconnecting 20P Connector & 16P Connectors From Control Unit
Inspect the all 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, go to step 4.
With the connector still disconnected, make these 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, go to step 5.
Fig 2: Security Control Unit Input Test Table (1 Of 2)
Reconnect the connectors to the control unit, and make sure these input tests at the connectors.
- 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 the security control unit.
Fig 3: Security Control Unit Input Test Table (2 Of 2)