Diagnostic Procedure

CHECK VACUUM HOSE
Check vacuum hose for clogging, cracks or improper connection.

OK or NG
1. OK (With CONSULT-II): GO TO 2.
2. OK (Without CONSULT-II): GO TO 3.
3. NG: Repair or replace vacuum hose.
Fig 1: Checking Vacuum Hose For Clogging, Cracks Or Improper Connection
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK EGRC-SOLENOID VALVE CIRCUIT
With CONSULT-II
1. Turn ignition switch ON.
2. Turn EGRC-solenoid valve "ON" and "OFF" in "ACTIVE TEST" mode with CONSULT-II and check operating sound.
  Clicking noise should be heard.
OK or NG
1. OK: GO TO 5.
2. NG: GO TO 4.
Fig 2: Reading "EGRC SOL/V" In "ACTIVE TEST" Mode
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK EGRC-SOLENOID VALVE CIRCUIT
Without CONSULT-II
1. Turn ignition switch OFF.
2. Disconnect EGRC-solenoid valve harness connector.
3. Turn ignition switch ON.
4. Check operating sound of the solenoid valve when disconnecting and reconnecting EGRC-solenoid valve harness connector. (The DTC or the 1st trip DTC for the EGRC-solenoid valve will be displayed, however, ignore it.)
OK or NG
1. OK: GO TO 6.
2. NG: GO TO 4.
DETECT MALFUNCTIONING PART
Check the following.
- Harness connectors E43, M65
- Harness connectors M59, F27
- Fuse block (J/B) connector E49
- 10A fuse
- Harness for open or short between fuse and EGRC-solenoid valve
- Harness for open or short between ECM and EGRC-solenoid valve
  1. : Repair open circuit or short to ground or short to power in harness or connectors.
CHECK EGRC-SOLENOID VALVE
With CONSULT-II
1. Perform "EGRC SOLENOID VALVE" in "ACTIVE TEST" mode.
2. Check air passage continuity and operation delay time under the following conditions.
  
  Fig 3: Reading "EGRC SOLENOID VALVE" in "ACTIVE TEST" Mode
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 4: Reference Data
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: GO TO 7.
2. NG: Replace EGRC-solenoid valve.
CHECK EGRC-SOLENOID VALVE
Without CONSULT-II
1. Check air passage continuity and operation delay time under the following conditions.
  
  Fig 5: Checking Air Passage Continuity And Operation Delay Time
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 6: Reference Data
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: GO TO 7.
2. NG: Replace EGRC-solenoid valve.
CHECK EGR VALVE
Refer to "COMPONENT INSPECTION ".

OK or NG
1. OK: GO TO 8.
2. NG: Replace EGR valve.
CHECK EGRC-BPT VALVE
Refer to "COMPONENT INSPECTION ".

OK or NG
1. OK: GO TO 9.
2. NG: Replace EGRC-BPT valve.
CHECK EGR TEMPERATURE SENSOR
Refer to "COMPONENT INSPECTION ".

OK or NG
1. OK: GO TO 10.
2. NG: Replace EGR temperature sensor.
CHECK INTERMITTENT INCIDENT
Perform "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT ".
1. : INSPECTION END