Description
*: ECM determines the start signal status by the signals of engine speed and battery voltage.
The ECM activates the fuel pump for several seconds after the ignition switch is turned ON to improve engine start ability. If the ECM receives a engine speed signal from the camshaft position sensor (PHASE), it knows that the engine is rotating, and causes the pump to operate. If the engine speed signal is not received when the ignition switch is ON, the engine stalls. The ECM stops pump operation and prevents battery discharging, thereby improving safety. The ECM does not directly drive the fuel pump. It controls the ON/OFF fuel pump relay, which in turn controls the fuel pump.
Component Function Check
1.CHECK FUEL PUMP FUNCTION
: Vehicle front (Illustration
shows
the view with intake air duct removed)
Fuel pressure pulsation should be felt on the fuel feed hose for 1 second after ignition switch is turned ON.
Diagnosis Procedure
1.CHECK FUEL PUMP POWER SUPPLY CIRCUIT-I
2.CHECK FUEL PUMP POWER SUPPLY CIRCUIT-II
Check the voltage between IPDM E/R harness connector and ground.
3.DETECT MALFUNCTIONING PART
Check the following.
4.CHECK FUEL PUMP POWER SUPPLY CIRCUIT-III
5.DETECT MALFUNCTIONING PART
Check the following.
6.CHECK FUEL PUMP GROUND CIRCUIT
7.CHECK FUEL PUMP
8.CHECK INTERMITTENT INCIDENT
Component Inspection
1.CHECK FUEL PUMP
Where to go for service
If maintenance service is required or your vehicle
appears to malfunction, have the systems
checked and serviced. It is recommended that
you visit a NISSAN dealer for this service.
NISSAN technicians are well-trained specialists
and are kept up-to-date with the latest service
information thr ...
Precaution
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and
"SEAT BELT PRE-TENSIONER"
The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT
PRE-TENSIONER", used along with a front seat belt, helps to reduce the risk
or severity of injury to the driver and front ...
Vehicle information display warnings and indicators
No Key Detected
Key ID Incorrect
Key Battery Low
I-Key System Error: See Owner's Manual
Shift to Park
Push brake and start switch to drive
Engine start operation for Intelligent Key system
(if I-Key battery level is low)
Release Parking Brake
Low Fuel
Low Washer Fluid
Ti ...