Diagnostic Procedure

Turn ignition switch to START.

Is any cylinder ignited? 

Yes or No 

1. Yes : GO TO 2.
2. No : GO TO  3.

With CONSULT-II 

1. Start engine.
2. Perform " POWER BALANCE" in " ACTIVE TEST" mode with CONSULT-II.
3. Make sure that each circuit produces a momentary engine speed drop.
   Fig 1: Consult-II ACTIVE TEST Display Screen

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

Without CONSULT-II 

1. Start engine.
2. Listen to each fuel injector operating sound.

   Clicking noise should be heard. 

   Fig 2: Identifying Fuel Injector For Audible Clicking

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

OK or NG 

1. OK : INSPECTION END 
2. NG : GO TO 3.

1. Turn ignition switch OFF.
2. Disconnect fuel injector harness connector.
   Fig 3: Identifying Fuel Injector Harness Connector

   Courtesy of NISSAN MOTOR CO., U.S.A.
3. Turn ignition switch ON.
4. Check voltage between fuel injector terminal 1 and ground with CONSULT-II or tester.

   Voltage: Battery voltage 

OK or NG 

1. OK : GO TO  5.
2. NG : GO TO 4.
   Fig 4: Identifying Voltage Between Fuel Injector Terminal 1 And Ground

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

Check the following.

• Harness connectors E2, F32
• IPDM E/R connector E119
• 15A fuse
• Harness for open or short between fuel injector and fuse
  1. : Repair harness or connectors.

1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between fuel injector terminal 2 and ECM terminals 21, 22, 23, 40, 41, 42, 44, 63.

   Refer to WIRING DIAGRAM .

   Continuity should exist. 

4. Also check harness for short to ground and short to power.

OK or NG 

1. OK : GO TO 6.
2. NG : Repair open circuit or short to ground or short to power in harness or connectors.

Refer to "COMPONENT INSPECTION ".

OK or NG 

1. OK : GO TO 7.
2. NG : Replace fuel injector.

Refer to "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT ".

1. : INSPECTION END