Nissan Sentra Service Manual: EPS Warning lamp
Component Function Check
1.CHECK THE ILLUMINATION OF THE EPS WARNING LAMP
Check that the EPS warning lamp turns ON when ignition switch turns ON. Then, EPS warning lamp turns OFF after the engine is started.
Is the inspection result normal? YES >> Inspection End.
NO >> Perform trouble diagnosis. Refer to STC-31, "Diagnosis Procedure".
Diagnosis Procedure
1.Perform self-diagnosis
With consult
-
Turn the ignition switch OFF to ON.
-
Perform EPS self-diagnosis.
Is any dtc detected? Yes >> check the dtc. Refer to stc-14, "dtc index".
No >> go to 2.
2.CHECK EPS WARNING LAMP SIGNAL
With consult
-
Turn the ignition switch on.
Caution:
Never start the engine.
-
Select DATA MONITOR of EPS and select WARNING LAMP.
-
Check that the EPS warning lamp is turned ON.
-
Start the engine.
CAUTION:
Never drive the vehicle.
-
Check that the EPS warning lamp is turned OFF.
Is the inspection result normal? YES >> Perform the trouble diagnosis for combination meter power supply circuit. Refer to MWI-52, "COMBINATION METER : Diagnosis Procedure".
NO >> Replace EPS control unit. Refer to STC-39, "Removal and Installation".
U1000 CAN Comm circuit
Description
Can (controller area network) is a serial communication line for
real time application. It is an on-vehicle multiplex
communication line with high data communication speed and excellen ...
Other materials:
P1554 Battery current sensor
DTC Logic
DTC DETECTION LOGIC
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P1554
BAT CURRENT SENSOR
(Battery current sensor)
The output voltage of the battery current
sensor is lower than the specified value ...
The oil pressure warning lamp does not turn off
Description
The oil pressure warning lamp remains illuminated while the engine is running
(normal oil pressure).
Diagnosis procedure
1.Check combination meter input signal
Start the engine and select METER/M&A on CONSULT.
Observe oil w/l data monitor and the operation of the oil pres ...
Cooling fan control
SYSTEM DIAGRAM
SYSTEM DESCRIPTION
ECM controls cooling fan speed corresponding to vehicle speed, engine coolant
temperature, refrigerant pressure,
air conditioner ON signal. Then control system has 3-step control
[HIGH/LOW/OFF].
Cooling Fan Operation
Cooling Fan Relay Operation
Whe ...
