Nissan Sentra Service Manual: EPS Warning lamp

Nissan Sentra Service Manual / Steering / Steering control system / DTC/circuit diagnosis / 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 ...

Symptom diagnosis

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