Nissan Versa (N17): Fuel pump

Component Function Check

1.CHECK FUEL PUMP FUNCTION

  1. Turn ignition switch ON.
  2. Pinch fuel feed hose (1) with two fingers.

Fuel pressure pulsation should be felt on the fuel feed hose for 1 second after ignition switch is turned ON.

Is the inspection result normal?

YES >> INSPECTION END

NO >> EC, "Diagnosis Procedure".

CHECK FUEL PUMP FUNCTION

Diagnosis Procedure

1.CHECK FUEL PUMP POWER SUPPLY CIRCUIT-I

  1. Turn ignition switch OFF.
  2. Disconnect ECM harness connector.
  3. Turn ignition switch ON.
  4. Check the voltage between ECM harness connector and ground. 

Is the inspection result normal?

YES >> GO TO 3.

NO >> GO TO 2.

2.CHECK FUEL PUMP POWER SUPPLY CIRCUIT-II

  1. Turn ignition switch OFF.
  2. Disconnect IPDM E/R harness connector.
  3. Check the continuity between IPDM E/R harness connector and ECM harness connector. 
  4. Also check harness for short to ground and short to power.

Is the inspection result normal?

YES >> GO TO 8.

NO >> Repair open circuit or short to ground or short to power in harness or connectors.

3.CHECK FUEL PUMP POWER SUPPLY CIRCUIT-III

  1. Turn ignition switch OFF.
  2. Reconnect all harness connectors disconnected.
  3. Disconnect "fuel level sensor unit and fuel pump" harness connector.
  4. Turn ignition switch ON.
  5. Check the voltage between "fuel level sensor unit and fuel pump" harness connector and ground.

Is the inspection result normal?

YES >> GO TO 6.

NO >> GO TO 4.

4.CHECK FUSE

  1. Turn ignition switch OFF.
  2. Disconnect 15 A fuse (No. 48) from IPDM E/R.
  3. Check 15 A fuse.

Is the inspection result normal?

YES >> GO TO 5.

NO >> Replace 15 A fuse.

5.CHECK FUEL PUMP POWER SUPPLY CIRCUIT-IV

  1. Turn ignition switch OFF.
  2. Disconnect IPDM E/R harness connector.
  3. Check the continuity between IPDM E/R harness connector and "fuel level sensor unit and fuel pump" harness connector.                                                 
  4. Also check harness for short to ground and short to power.

Is the inspection result normal?

YES >> GO TO 6.

NO >> Repair open circuit, short to ground or short to power in harness or connectors.

6.CHECK FUEL PUMP GROUND CIRCUIT FOR OPEN AND SHORT

  1. Turn ignition switch OFF.
  2. Check the continuity between "fuel level sensor unit and fuel pump" harness connector and ground.
  3. Also check harness for short to power.

Is the inspection result normal?

YES >> GO TO 7.

NO >> Repair open circuit or short to power in harness or connectors.

7.CHECK FUEL PUMP

Refer to EC, "Component Inspection".

Is the inspection result normal?

YES >> GO TO 8.

NO >> Replace "fuel level sensor unit and fuel pump".Refer to FL, "Exploded View".

8.CHECK INTERMITTENT INCIDENT

Check intermittent incident. Refer to GI, "Intermittent Incident".

Is the inspection result normal?

YES >> Replace IPDM E/R. Refer to PCS, "Removal and Installation" (WITH I-KEY) or PCS, "Removal and Installation" (WITHOUT I-KEY).

NO >> Repair open circuit, short to ground or short to power in harness or connectors.

Component Inspection

1.CHECK FUEL PUMP

  1. Turn ignition switch OFF.
  2. Disconnect "fuel level sensor unit and fuel pump" harness connector.
  3. Check resistance between "fuel level sensor unit and fuel pump" terminals as follows. 

Is the inspection result normal?

YES >> INSPECTION END

NO >> Replace "fuel level sensor unit and fuel pump". Refer to FL, "Exploded View".

Other materials:

Control panel buttons - color screen with Navigation System (if so equipped)
WARNING Positioning of the heating or air conditioning controls and display controls should not be done while driving in order that full attention may be given to the driving operation. Do not disassemble or modify this system. If you do, it may result in accidents, fire, or elec ...

Positive crankcase ventilation
Inspection 1.CHECK PCV VALVE With engine running at idle, remove PCV valve from rocker cover. A properly working valve makes a hissing noise as air passes through it. A strong vacuum should be felt immediately when a finger is placed over valve inlet. Is the inspection result normal? YES &g ...

Categories


© 2017-2025 Copyright www.niveguide.com
0.007