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: Active Test Mode With CONSULT-II

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

Without CONSULT-II 

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

   Clicking noise should be heard. 

Fig 2: Overall Function Without CONSULT-II

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 injector harness connector.
   Fig 3: Checking Injector Power Supply Circuit

   Courtesy of NISSAN MOTOR CO., U.S.A.
3. Turn ignition switch ON.
4. Check voltage between 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: Measuring Voltage Between Terminals

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 injector and fuse

  : Repair harness or connectors.

1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between 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 injector.

Refer to TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT .

: INSPECTION END