Nissan Versa Note. Manual - part 770

EPS WARNING LAMP

STC-29

< DTC/CIRCUIT DIAGNOSIS >

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EPS WARNING LAMP

Component Function Check

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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-29, "Diagnosis Procedure"

. 

Diagnosis Procedure

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1.

PERFORM SELF-DIAGNOSIS

With CONSULT

1. Turn the ignition switch OFF to ON.

2. Perform “EPS” self-diagnosis.
Is any DTC detected?

YES

>> Check the DTC. Refer to 

STC-10, "DTC Index"

. 

NO

>> GO TO 2.

2.

CHECK EPS WARNING LAMP SIGNAL

With CONSULT

1. Turn the ignition switch ON.

CAUTION:

Never start the engine.

2. Select “DATA MONITOR” of “EPS” and select “WARNING LAMP”.

3. Check that the EPS warning lamp is turned ON.

4. Start the engine.

CAUTION:

Never drive the vehicle.

5. 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-42,

"COMBINATION METER : Diagnosis Procedure"

.

NO

>> Replace the EPS control unit. Refer to 

STC-37, "Removal and Installation"

. 

STC-30

< SYMPTOM DIAGNOSIS >

EPS WARNING LAMP DOES NOT TURN ON

SYMPTOM DIAGNOSIS

EPS WARNING LAMP DOES NOT TURN ON

Description

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EPS warning lamp does not turn ON when turning ignition switch ON from OFF. (Check the illumination of the

EPS warning lamp.)

Diagnosis Procedure

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1.

CHECK EPS WARNING LAMP

Perform the trouble diagnosis of EPS warning lamp. Refer to 

STC-29, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> Check that there is no malfunction in each harness connector pin terminal or disconnection.

NO

>> Repair or replace the specific malfunctioning part.

EPS WARNING LAMP DOES NOT TURN OFF

STC-31

< SYMPTOM DIAGNOSIS >

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EPS WARNING LAMP DOES NOT TURN OFF

Description

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EPS warning lamp does not turn OFF several seconds after engine started.

Diagnosis Procedure

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1.

PERFORM SELF-DIAGNOSIS

With CONSULT

1. Turn the ignition switch OFF to ON.

2. Perform “EPS” self-diagnosis.
Is any DTC detected?

YES

>> Check the DTC. Refer to 

STC-10, "DTC Index"

. 

NO

>> GO TO 2.

2.

CHECK EPS WARNING LAMP

Perform the trouble diagnosis of EPS warning lamp. Refer to 

STC-29, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace the specific malfunctioning part.

3.

CHECK EPS CONTROL UNIT POWER SUPPLY AND GROUND CIRCUIT

Perform the trouble diagnosis of EPS control unit power supply and ground. Refer to 

STC-18, "Diagnosis Pro-

cedure"

.

Is the inspection result normal?

YES

>> Check that there is no malfunction in each harness connector pin terminal or disconnection.

NO

>> Repair or replace the specific malfunctioning part.

STC-32

< SYMPTOM DIAGNOSIS >

STEERING WHEEL TURNING FORCE IS HEAVY OR LIGHT

STEERING WHEEL TURNING FORCE IS HEAVY OR LIGHT

Description

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Steering wheel turning force is heavy or light.

Diagnosis Procedure

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1.

PERFORM SELF-DIAGNOSIS

With CONSULT

1. Turn the ignition switch OFF to ON.

2. Perform EPS self-diagnosis.
Is any DTC detected?

YES

>> Check the DTC. Refer to 

STC-10, "DTC Index"

. 

NO

>> GO TO 2.

2.

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

>> GO TO 3.

NO

>> Perform trouble diagnosis of EPS warning lamp. Refer to 

STC-29, "Diagnosis Procedure"

.

3.

CHECK EPS CONTROL UNIT SIGNAL (1)

With CONSULT

1. Start the engine.

CAUTION:

Never drive the vehicle.

2. Select ASSIST LEVEL in DATA MONITOR in EPS.
Dose the item in DATA MONITOR indicate 100%?

YES

>> GO TO 6.

NO

>> GO TO 4.

4.

CHECK EPS CONTROL UNIT SIGNAL (2)

With CONSULT

Select BATTERY VOLT in DATA MONITOR in EPS.
Dose the item in DATA MONITOR indicate 10 V or more?

YES

>> GO TO 5.

NO

>> Perform trouble diagnosis of EPS control unit power supply and ground. Refer to 

STC-18, "Diag-

nosis Procedure"

.

5.

CHECK EPS CONTROL UNIT SIGNAL (3)

With CONSULT

1. Select ASSIST LEVEL in DATA MONITOR in EPS.

2. Stop the EPS system until the item in DATA MONITOR becomes 100%.

NOTE:

While stopping the EPS system, do not turn steering wheel.

3. Check that the symptom continues.
Dose the symptom continue?

YES

>> GO TO 6.

NO

>> The assist torque decreases because of protection function. This is not malfunction. Inspection

End.

6.

CHECK EPS CONTROL UNIT SIGNAL (4)

With CONSULT

1. Start the engine.

CAUTION: