Power Supply And Ground Circuit Check

CHECK MAIN POWER SUPPLY CIRCUIT FOR SMART ENTRANCE CONTROL UNIT
1. Disconnect smart entrance control unit harness connector.
2. Check voltage between smart entrance control unit harness connector terminals 10, 11 and ground.
  
  Fig 1: Checking Voltage Between Smart Entrance Control Unit Harness Connector Terminals
  Courtesy of NISSAN MOTOR CO., U.S.A.
Refer to Figure and Figure .

OK or NG
1. OK : GO TO 2.
2. NG : Check the following:
  - 30A fusible link (letter d , located in fuse and fusible link box)
  - 10A fuse (No. 37, located in fuse and fusible link box)
  - M6 circuit breaker
  - Harness for open or short between smart entrance control unit and fuse
CHECK IGNITION SWITCH "ACC" CIRCUIT
1. Disconnect smart entrance control unit harness connector.
2. Check voltage between smart entrance control unit harness connector terminal 21 and ground while ignition switch is "ACC".
  
  Fig 2: Checking Voltage Between Smart Entrance Control Unit Harness Connector Terminal
  Courtesy of NISSAN MOTOR CO., U.S.A.
Refer to Figure and Figure .

OK or NG
1. OK : GO TO 3.
2. NG : Check the following:
  - 10A fuse [No. 1, located in fuse block (J/B)]
  - Harness for open or short between smart entrance control unit and fuse
CHECK GROUND CIRCUIT FOR SMART ENTRANCE CONTROL UNIT
Check continuity between smart entrance control unit harness connector terminal 16 and ground.

Fig 3: Checking Continuity Between Smart Entrance Control Unit Harness Connector Terminal
Courtesy of NISSAN MOTOR CO., U.S.A.

Refer to Figure and Figure .

OK or NG
1. OK : Power supply and ground circuits are OK.
2. NG : Check ground harness.