Work Procedure

1. Check service records for any recent repairs that may indicate a related malfunction, or a current need for scheduled maintenance.
2. Open engine hood and check the following:
   • Harness connectors for improper connections
   • Wiring harness for improper connections, pinches and cut
   • Vacuum hoses for splits, kinks and improper connections
   • Hoses and ducts for leaks
   • Air cleaner clogging
   • Gasket
   Fig 1: Checking Wiring Harness For Improper Connections, Pinches And Cuts

   Courtesy of NISSAN NORTH AMERICA, INC.
3. Confirm that electrical or mechanical loads are not applied.
   • Headlamp switch is OFF.
   • Air conditioner switch is OFF.
   • Rear window defogger switch is OFF.
   • Steering wheel is in the straight-ahead position, etc.
4. Start engine and warm it up until engine coolant temperature indicator points the middle of gauge.

   Ensure engine stays below 1, 000 RPM.

   Fig 2: Identifying Engine Coolant Temperature

   Courtesy of NISSAN NORTH AMERICA, INC.
5. Run engine at about 2, 000 RPM for about 2 minutes under no load.
   Fig 3: Identifying Engine Speed

   Courtesy of NISSAN NORTH AMERICA, INC.
6. Make sure that no DTC is displayed with CONSULT or GST.

   Are any DTCs detected? 

   YES: GO TO 2.

   NO: GO TO  3.

Repair or replace components as necessary according to corresponding Diagnosis Procedure.

: GO TO 3

1. Run engine at about 2, 000 RPM for about 2 minutes under no load.
2. Rev engine (2, 000 to 3, 000 RPM) two or three times under no load, then run engine at idle speed for about 1 minute.
3. Check idle speed.

   For procedure, refer to "INSPECTION ".

   For specification, refer to "IDLE SPEED ".

   Is the inspection result normal? 

   YES: GO TO  10.

   NO: GO TO 4.

   Fig 4: Checking Idle Speed

   Courtesy of NISSAN NORTH AMERICA, INC.

1. Stop engine.
2. Perform "WORK PROCEDURE ".

   : GO TO 5.

Perform "WORK PROCEDURE ".

: GO TO 6.

Perform "WORK PROCEDURE ".

Is Idle Air Volume Learning carried out successfully? 

YES: GO TO 7.

NO: Follow the instruction of Idle Air Volume Learning. Then GO TO  4.

1. Start engine and warm it up to normal operating temperature.
2. Check idle speed.

   For procedure, refer to "INSPECTION ".

   For specification, refer to "IDLE SPEED ".

   Is the inspection result normal? 

   YES: GO TO  10.

   NO: GO TO 8.

Check the Following.

• Check camshaft position sensor (PHASE) and circuit. Refer to "COMPONENT INSPECTION ".
• Check crankshaft position sensor (POS) and circuit. Refer to "COMPONENT INSPECTION ".

  Is the inspection result normal? 

  YES: GO TO 9.

  NO: Repair or replace. Then GO TO  4.

1. Substitute with a non-malfunctioning ECM to check ECM function. (ECM may be the cause of the incident, although this is rare.)
2. Perform initialization of IVIS (NATS) system and registration of all IVIS (NATS) ignition key IDs. Refer to "WORK PROCEDURE ".

   : GO TO  4.

1. Run engine at idle.
2. Check ignition timing with a timing light.
   Fig 5: Checking Ignition Timing Using Timing Indicator

   Courtesy of NISSAN NORTH AMERICA, INC.

   For procedure, refer to "INSPECTION ".

   For specification, refer to "IGNITION TIMING ".

   Is the inspection result normal? 

   YES: GO TO  19.

   NO: GO TO 11.

1. Stop engine.
2. Perform "WORK PROCEDURE ".

   : GO TO 12.

Perform "WORK PROCEDURE ".

: GO TO 13.

Perform "WORK PROCEDURE ".

Is Idle Air Volume Learning carried out successfully? 

YES: GO TO 14.

NO: Follow the instruction of Idle Air Volume Learning. Then GO TO  4.

1. Start engine and warm it up to normal operating temperature.
2. Check idle speed.

   For procedure, refer to "INSPECTION ".

   For specification, refer to "IDLE SPEED ".

   Is the inspection result normal? 

   YES: GO TO 15.

   NO: GO TO  17.

1. Run engine at idle.
2. Check ignition timing with a timing light.
   Fig 6: Checking Ignition Timing Using Timing Indicator

   Courtesy of NISSAN NORTH AMERICA, INC.

   For procedure, refer to "INSPECTION ".

   For specification, refer to "IGNITION TIMING ".

   Is the inspection result normal? 

   YES: GO TO  19.

   NO: GO TO 16.

Check timing chain installation. Refer to "REMOVAL AND INSTALLATION ".

Is the inspection result normal? 

YES: GO TO 17.

NO: Repair the timing chain installation. Then GO TO  4.

Check the following.

• Check camshaft position sensor (PHASE) and circuit. Refer to "COMPONENT INSPECTION ".
• Check crankshaft position sensor (POS) and circuit. Refer to "COMPONENT INSPECTION ".

  Is the inspection result normal? 

  YES: GO TO 18.

  NO: Repair or replace. Then GO TO  4.

1. Substitute with a non-malfunctioning ECM to check ECM function. (ECM may be the cause of the incident, although this is rare.)
2. Perform initialization of IVIS (NATS) system and registration of all IVIS (NATS) ignition key IDs. Refer to "WORK PROCEDURE ".

   : GO TO  4.

If ECM is replaced during this BASIC INSPECTION procedure, go to "WORK PROCEDURE ".

: INSPECTION END