Diagnostic Procedure

Turn ignition switch to START.

Is any cylinder ignited? 

Yes or No 

Yes: GO TO  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: Checking Fuel Injector For Audible Clicking

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

OK or NG 

OK: INSPECTION END 

NG: GO TO  3.

1. Turn ignition switch OFF.
2. Disconnect fuel injector harness connector.
   Fig 3: Disconnecting 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 

OK: GO TO  5.

NG: GO TO  4.

Fig 4: Checking 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

: 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 

OK: GO TO  6.

NG: Repair open circuit or short to ground or short to power in harness or connectors.

Refer to "COMPONENT INSPECTION ".

OK or NG 

OK: GO TO  7.

NG: Replace fuel injector.

Refer to "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT ".

: INSPECTION END