Remote Keyless Receiver Check

WARNING: This page is about a different car, the 2004 Infiniti G35. However, it is still accessible from the selected car via links, so may be relevant.

Check multi-remote control receiver input voltage .
1. Remove key from ignition key cylinder.
2. Check signal between remote keyless receiver connector M89 terminal 4 (Y) and ground with oscilloscope.
  
  Fig 1: Checking Signal At Remote Keyless Receiver
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 2: Displaying Terminal Reference Value
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK : GO TO 3 .
2. NG : GO TO 2 .
Check remote keyless receiver harness .
1. Turn ignition switch OFF.
2. Disconnect remote keyless receiver and BCM connector.
3. Check continuity between remote keyless receiver connector M89 terminal 4 (Y) and BCM connector M1 terminal 19 (Y).
  1. 4 (Y) - 19 (Y) : Continuity should exist.
4. Check continuity between remote keyless receiver connector M89 terminal 4 (Y) and ground.
  1. 4 (Y) - Ground : Continuity should not exist.
OK or NG
1. OK : Check harness connection.
2. NG : Repair or replace the harness.
Fig 3: Checking Continuity Between Remote Keyless Entry Receiver And BCM
Courtesy of NISSAN MOTOR CO., U.S.A.
Check remote keyless receiver .
1. Turn ignition switch OFF.
2. Disconnect remote keyless receiver and BCM connector.
3. Check continuity between remote keyless receiver connector M89 terminal 1 (B) and BCM connector M1 terminal 18 (B).
  1. 1 (B) - 18 (B) : Continuity should exist.
4. Check continuity between remote keyless receiver connector M89 terminal 1 (B) and ground.
  1. 1 (B) - Ground : Continuity should not exist .
OK or NG
1. OK : GO TO 4 .
2. NG : Repair or replace the harness.
Fig 4: Checking Continuity Between Remote Keyless Entry Receiver And BCM
Courtesy of NISSAN MOTOR CO., U.S.A.
Check remote keyless receiver output signal .
1. Connect remote keyless receiver connector.
2. Check signal BCM connector M1 terminal 20 (L) and ground with oscilloscope.
  
  Fig 5: Checking Signal At BCM Connector
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 6: Displaying Terminal Reference Value
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK : Replace BCM.
2. NG : GO TO 5 .
Check remote keyless receiver harness .
1. Disconnect remote keyless receiver and BCM connector.
2. Check continuity between remote keyless receiver connector M89 terminal 2 (L) and BCM connector M3 terminal 20 (L).
  1. 2 (L) - 20 (L) : Continuity should exist.
3. Check continuity between remote keyless receiver connector M89 terminal 2 (L) and ground.
  1. 2 (L) - Ground : Continuity should not exist.
OK or NG
1. OK : Replace remote keyless receiver.
2. NG : Repair or replace the harness.
Fig 7: Checking Continuity Between Remote Keyless Entry Receiver And BCM
Courtesy of NISSAN MOTOR CO., U.S.A.