Smart Access System With Push-Button Start

DOOR LOCK: SMART ACCESS SYSTEM WITH PUSH-BUTTON START: TERMINALS OF ECU

1. CHECK CERTIFICATION ECU





(a) Disconnect the U28 ECU connector.

(b) Measure the voltage and resistance of the wire harness side connector.





If the result is not as specified, the wire harness side may have a malfunction.

(c) Reconnect the U28 ECU connector.

(d) Measure the voltage of the connector.









If the result is not as specified, the ECU may have a malfunction.

2. CHECK COWL SIDE JUNCTION BLOCK RH ASSEMBLY (MULTIPLEX NETWORK BODY ECU)





(a) Disconnect the DD, DK, DM and DN junction block connectors.

(b) Measure the voltage and resistance of the wire harness side connectors.





If the result is not as specified, the wire harness side may have a malfunction.

(c) Reconnect the DD, DK, DM and DN junction block connectors.

(d) Measure the resistance of the connector.





If the result is not as specified, the junction block may have a malfunction.

3. CHECK MULTIPLEX NETWORK DOOR ECU FRONT LH (DRIVER DOOR ECU)





(a) Disconnect the M9 and M10 ECU connectors.

(b) Measure the resistance and voltage of the wire harness side connectors.





If the result is not as specified, the wire harness side may have a malfunction.

(c) Reconnect the M9 and M10 connectors.

(d) Measure the voltage of the connectors.





If the result is not as specified, the ECU may have a malfunction.

4. CHECK MULTIPLEX NETWORK DOOR ECU FRONT RH (FRONT PASSENGER DOOR ECU)





(a) Disconnect the M3 and M4 ECU connectors.

(b) Measure the resistance and voltage of the wire harness side connectors.





If the result is not as specified, the wire harness side may have a malfunction.

(c) Reconnect the M3 and M4 connectors.

(d) Measure the voltage of the connectors.





If the result is not as specified, the ECU may have a malfunction.

5. CHECK MULTIPLEX NETWORK DOOR ECU REAR LH (REAR DOOR LH ECU)





(a) Disconnect the O7 and O8 ECU connectors.

(b) Measure the resistance and voltage of the wire harness side connectors.





If the result is not as specified, the wire harness side may have a malfunction.

(c) Reconnect the O7 and O8 connectors.

(d) Measure the voltage of the connectors.





If the result is not as specified, the ECU may have a malfunction.

6. CHECK MULTIPLEX NETWORK DOOR ECU REAR RH (REAR DOOR RH ECU)





(a) Disconnect the O2 and O3 ECU connectors.

(b) Measure the resistance and voltage of the wire harness side connectors.





If the result is not as specified, the wire harness side may have a malfunction.

(c) Reconnect the O2 and O3 connectors.

(d) Measure the voltage of the connectors.





If the result is not as specified, the ECU may have a malfunction.

7. CHECK NO.1 JUNCTION BLOCK ASSEMBLY (MULTIPLEX NETWORK REAR ECU)





(a) Disconnect the LC and LF junction block connectors.

(b) Measure the resistance and voltage of the wire harness side connectors.





If the result is not as specified, the wire harness side may have a malfunction.