Power Back Door System

DOOR / HATCH: POWER BACK DOOR SYSTEM: TERMINALS OF ECU

1. CHECK POWER BACK DOOR UNIT





(a) Disconnect the L36 unit connector.
(b) Measure the voltage and resistance 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 L36 unit connector.
(d) Measure the voltage according to the value(s) in the table below.





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






(e) Using an oscilloscope, check waveform 1.










(f) Using an oscilloscope, check waveform 2.










(g) Using an oscilloscope, check waveform 3.










(h) Using an oscilloscope, check waveform 4.










(i) Using an oscilloscope, check waveform 5.










(j) Using an oscilloscope, check waveform 6.










(k) Using an oscilloscope, check waveform 7.










(l) Using an oscilloscope, check waveform 8.






2. CHECK MAIN BODY ECU





(a) Disconnect the 2B, 2D, E2 and E3 ECU connectors.
(b) Measure the voltage and resistance according to the value(s) in the table below.





If the result is not as specified, there may be a malfunction in the wire harness.
(c) Reconnect the 2B, 2D, E2 and E3 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.






(e) Using an oscilloscope, check waveform.