Basic Inspection

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
     Fig 1: Inspecting Wiring Harness For Improper Connections, Pinches & Cut

     Courtesy of NISSAN MOTOR CO., U.S.A.
   • Vacuum hoses for splits, kinks and improper connections
   • Hoses and ducts for leaks
   • Air cleaner clogging
   • Gasket
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 Indicator Pointing In Middle Of Gauge

   Courtesy of NISSAN MOTOR CO., U.S.A.
5. Run engine at about 2, 000 RPM for about 2 minutes under no-load.
   Fig 3: Inspecting Run Engine At About 2, 000 RPM Under No-load

   Courtesy of NISSAN MOTOR CO., U.S.A.
6. Make sure that no DTC is displayed with CONSULT-II or GST.

   OK or NG 

   • OK: GO TO  3.
   • NG: GO TO  2.

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

• GO TO  3.

With CONSULT-II 

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.
   Fig 4: Checking Target Idle Speed

   Courtesy of NISSAN MOTOR CO., U.S.A.
3. Read idle speed in "DATA MONITOR" mode with CONSULT-II. Refer to IDLE SPEED .
   • 650 +/- 50 RPM (in P or N position) 
   Fig 5: CONSULT-II Display - DATA MONITOR, ENG SPEED

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

Without CONSULT-II 

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. Refer to IDLE SPEED .
   • 650 +/- 50 RPM (in P or N position) 

OK or NG 

• OK: GO TO  10.
• NG: GO TO  4.

1. Stop engine.
2. Perform ACCELERATOR PEDAL RELEASED POSITION LEARNING .

• GO TO  5.

Perform THROTTLE VALVE CLOSED POSITION LEARNING .

• GO TO  6.

Refer to IDLE AIR VOLUME LEARNING .

Is Idle Air Volume Learning carried out successfully? 

Yes or No 

• Yes: GO TO  7.
• No: 1. Follow the instruction of Idle Air Volume Learning.
• 2. GO TO  4.

With CONSULT-II 

1. Start engine and warm it up to normal operating temperature.
2. Read idle speed in "DATA MONITOR" mode with CONSULT-II. Refer to IDLE SPEED .
   • 650 +/- 50 RPM (in P or N position) 

Without CONSULT-II 

1. Start engine and warm it up to normal operating temperature.
2. Check idle speed. Refer to IDLE SPEED .
   • 650 +/- 50 RPM (in P or N position) 

Fig 6: CONSULT-II Display - DATA MONITOR, ENG SPEED

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

OK or NG 

• OK: GO TO  10.
• NG: GO TO  8.

Check the following.

• Check camshaft position sensor (PHASE) and circuit. Refer to DTC P0340, P0345 CMP SENSOR (PHASE) .
• Check crankshaft position sensor (POS) and circuit. Refer to DTC P0335 CKP SENSOR (POS) .

OK or NG 

• OK: GO TO  9.
• NG:
  1. Repair or replace.
  2. GO TO  4.

1. Substitute another known-good ECM to check ECM function. (ECM may be the cause of an incident, but this is a rare case.)
2. Perform initialization of NVIS (NATS) system and registration of all NVIS (NATS) ignition key IDs. Refer to NVIS (NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS) .

• GO TO  4.

1. Run engine at idle.
2. Check ignition timing with a timing light. Refer to IGNITION TIMING .
   • 15 +/- 5° BTDC (in P or N position) 

Fig 7: Locating Ignition Timing Marks

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

OK or NG 

• OK: GO TO  19.
• NG: GO TO  11.

1. Stop engine.
2. Perform  ACCELERATOR PEDAL RELEASED POSITION LEARNING   .

• GO TO  12.

Perform THROTTLE VALVE CLOSED POSITION LEARNING .

• GO TO  13.

Refer to IDLE AIR VOLUME LEARNING .

Is Idle Air Volume Learning carried out successfully? 

Yes or No 

• Yes: GO TO  14.
• No:
  1. Follow the instruction of Idle Air Volume Learning.
  2. GO TO  4.

With CONSULT-II 

1. Start engine and warm it up to normal operating temperature.
2. Read idle speed in "DATA MONITOR" mode with CONSULT-II. Refer to IDLE SPEED .
   • 650 +/- 50 RPM (in P or N position) 

Without CONSULT-II 

1. Start engine and warm it up to normal operating temperature.
2. Check idle speed. Refer to IDLE SPEED .
   • 650 +/- 50 RPM (in P or N position) 

Fig 8: CONSULT-II Display - DATA MONITOR, ENG SPEED

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

OK or NG 

• OK: GO TO  15.
• NG: GO TO  17.

1. Run engine at idle.
2. Check ignition timing with a timing light. Refer to IGNITION TIMING .
   • 15 +/- 5° BTDC (in P or N position) 

Fig 9: Locating Ignition Timing Marks

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

OK or NG 

• OK: GO TO  19.
• NG: GO TO  16.

Check timing chain installation. Refer to TIMING CHAIN .

OK or NG 

• OK: GO TO  17.
• NG:
  1. Repair the timing chain installation.
  2. GO TO  4.

Check the following.

• Check camshaft position sensor (PHASE) and circuit. Refer to DTC P0340, P0345 CMP SENSOR (PHASE) .
• Check crankshaft position sensor (POS) and circuit. Refer to DTC P0335 CKP SENSOR (POS) .

OK or NG 

• OK: GO TO  18.
• NG:
  1. Repair or replace.
  2. GO TO  4.

1. Substitute another known-good ECM to check ECM function. (ECM may be the cause of an incident, but this is a rare case.)
2. Perform initialization of NVIS (NATS) system and registration of all NVIS (NATS) ignition key IDs. Refer to NVIS (NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS) .

• GO TO  4.

Did you replace the ECM, referring this Basic Inspection procedure?

Yes or No 

• Yes:
  1. Perform VIN REGISTRATION .
  2. INSPECTION END 
• No: INSPECTION END