Power Trunk / Liftgate Control Module: Testing and Inspection
TERMINALS OF ECUTerminals Of ECU/Pinouts:
CHECK MULTIPLEX NETWORK DOOR ECU BACK (BACK DOOR ECU)
a. Disconnect the B8 and B9 ECU connectors, and check the voltage or continuity of each terminal of the wire harness side connectors.
Standard:
If the result is not as specified, there may be a malfunction on the wire harness side.
b. Reconnect the connectors, and check the voltage of each terminal of the connectors.
Standard:
If the result is not as specified, the vehicle may be defective. In this case, check the harness, connector and fuse between the ECU and battery. Then repair or replace it if necessary.