2. Check Communication Signal

1. Connect driver door control unit (LCU01) and malfunctioning door control unit connector.
2. Check the signal between malfunctioning door control unit connector terminal 11 and ground with oscilloscope.

Fig 1: Check Communication Signal (1 Of 2)

Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 2: Check Communication Signal (2 Of 2)

Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG 

1. OK: Communication signal is OK.
2. NG:
   • All door control unit (passenger, rear LH and RH) are NG. Replace Driver door control unit.
   • Any of door control unit (passenger, rear LH or RH door control unit) are NG. Replace malfunctioning door control unit.