Check Select Unlock Relay

WARNING: This page is about a different car, the 2005 Infiniti FX45 and 2005 Infiniti FX35. However, it is still accessible from the selected car via links, so may be relevant.

CHECK SELECT UNLOCK RELAY POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect passenger side select unlock relay connector.
3. Check voltage between passenger side select unlock relay connector M30 terminal 1 and ground.
  1. 1 (L/R) - Ground : Approx. 12V
Fig 1: Checking Voltage Between Passenger Side Select Unlock Relay Connector M30 Terminal 1 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK : GO TO 2.
2. NG : Repair or replace passenger side select unlock relay power supply circuit.
CHECK HARNESS
1. Disconnect Intelligent Key unit connector.
2. Check continuity between passenger side select unlock relay connector M30 terminal 2 and Intelligent Key unit connector M34 terminal 40.
  1. 2 (BR/W) - 40 (BR/W) : Continuity should exist.
3. Check continuity between passenger side select unlock relay connector M30 terminal 2 and ground.
  1. 2 (BR/W) - Ground : Continuity should not exist.
Fig 2: Checking Continuity Between Passenger Side Select Unlock Relay Connector M30 Terminal 2 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK : Replace passenger side select unlock relay.
2. NG : Repair or replace harness between passenger side select unlock relay and Intelligent Key unit.