Wireless Door Lock Control System

DOOR LOCK: WIRELESS DOOR LOCK CONTROL SYSTEM: TERMINALS OF ECU

1. CHECK MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK)





(a) Disconnect the DA, DD, DF, L12 and L13 ECU connectors.

(b) Measure the resistance and voltage according to value(s) in the table below.





* If the result is not as specified, there may be a malfunction on the wire harness side.

(c) Reconnect the DA, DD, DF, L12 and L13 ECU connectors.

(d) Measure the voltage according to the value(s) in the table below.





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

2. CHECK FRONT MULTIPLEX NETWORK LIGHT ECU (FRONT CONTROLLER)





(a) Measure the voltage according to the value(s) in the table below.





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

3. CHECK LUGGAGE ROOM JUNCTION BLOCK (REAR JUNCTION BLOCK ECU) (w/o Power Trunk Lid System)





(a) Measure the resistance according to the value(s) in the table below.





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

4. CHECK POWER TRUNK LID CONTROL ECU (w/ Power Trunk Lid System)





(a) Disconnect the S43 ECU connector.

(b) Measure the resistance and voltage according to the value(s) in the table below.





* If the result is not as specified, there may be a malfunction on the wire harness side.

(c) Reconnect the S43 ECU connector.

(d) Measure the voltage according to the value(s) in the table below.





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

(e) Using an oscilloscope, check the waveform.





Waveform (Reference)





5. CHECK CERTIFICATION ECU





(a) Disconnect the L15 ECU connector.

(b) Measure the resistance and voltage according to the value(s) in the table below.





* If the result is not as specified, there may be a malfunction on the wire harness side.

(c) Reconnect the L15 ECU connector.

(d) Measure the voltage according to the value(s) in the table below.





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