Multiplex Communication System

TERMINALS OF ECU




1. CHECK MAIN BODY ECU
a. Disconnect the B5, B6 and B7 ECU connectors.




b. Measure the resistance or voltage of each terminal of the wire harness side connector.

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




2. CHECK DRIVER DOOR ECU
a. Disconnect the D22 ECU connector.




b. Measure the resistance or voltage of each terminal of the wire harness side connector.

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




3. CHECK FRONT PASSENGER DOOR ECU
a. Disconnect the F18 ECU connector.




b. Measure the resistance or voltage of each terminal of the wire harness side connector.

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




c. Disconnect the F18 ECU connector.




d. Measure the resistance or voltage of each terminal of the wire harness side connector.

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




4. CHECK SLIDING ROOF ECU
a. Disconnect the S19 ECU connector.




b. Measure the resistance or voltage of each terminal of the wire harness side connector.

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




5. CHECK BACK DOOR ECU
a. Disconnect the B10 and B11 ECU connectors.




b. Measure the resistance or voltage of each terminal of the wire harness side connector.

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




6. CHECK COMBINATION METER
a. Disconnect the C5 and C6 meter connectors.

Part 1:

Part 2:

b. Measure the resistance or voltage of each terminal of the wire harness side connector.

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




7. CHECK MEMORY SEAT ECU AND SWITCH (w/ Driving Position Memory)
a. Disconnect the M6 and M7 ECU connectors.




b. Measure the resistance or voltage of each terminal of the wire harness side connector.

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




8. CHECK A/C ECU (INTEGRATION CONTROL AND PANEL)
a. Disconnect the I19 ECU connector.




b. Measure the resistance or voltage of each terminal of the wire harness side connector.

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