Control Unit Input Test
Control Unit Input TestNOTE: Before troubleshooting the keyless access system, troubleshoot the multiplex integrated control system first using B-CAN System Diagnosis Test mode A.
1. Turn the ignition switch OFF.
2. Remove the driver's dashboard lower cover.
3. Disconnect the connectors (A) from the keyless access control unit (B).
NOTE: All connector views are wire side of female terminals.
4. 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, go to step 5.
5. With the connectors still disconnected, make 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, go to step 6.
6. Reconnect the connectors to the keyless access control unit, and make 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 it.