Nissan Rogue Service Manual: Unbalance steering wheel turning force (torque variation)
Description
Unbalance steering wheel turning force (torque variation).
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-13, "DTC Index".
NO >> GO TO 2.
2.CHECK THE ILLUMINATION OF THE EPS WARNING LAMP
Check the EPS warning lamp while the engine is started.
Does the EPS warning lamp turn OFF? YES >> GO TO 3.
NO >> Refer to STC-28, "Diagnosis Procedure".
3.CHECK STEERING COLUMN AND STEERING GEAR
Check the steering column assembly and steering gear assembly.
- Steering column assembly. Refer to ST-9, "Inspection".
- Steering gear assembly. Refer to ST-10, "Inspection".
Is the inspection result normal? YES >> GO TO 4.
NO >> Repair or replace the specific malfunctioning part.
4.CHECK EPS CONTROL UNIT SIGNAL (1)
With CONSULT
- Start the engine.
CAUTION: Never drive the vehicle.
- Turn steering wheel from full left stop to full right stop.
- Select “ASSIST LEVEL” in “DATA MONITOR” in “EPS”.
Dose the item in “DATA MONITOR” maintain “100%”? YES >> GO TO 7.
NO >> GO TO 5.
5.CHECK EPS CONTROL UNIT SIGNAL (2)
With CONSULT
Select “BATTERY VOLT” in “DATA MONITOR” in “EPS”.
Dose the item in “DATA MONITOR” indicate “10.5 V” or more? YES >> GO TO 6.
NO >> Perform trouble diagnosis of EPS control unit power supply and ground. Refer to STC-20, "Diagnosis Procedure".
6.CHECK EPS CONTROL UNIT SIGNAL (3)
With CONSULT
- Select “ASSIST LEVEL” in “DATA MONITOR” in “EPS”.
- Stop the EPS system until the item in “DATA MONITOR” becomes
“100%” or less.
NOTE: While stopping the EPS system, do not turn steering wheel.
- Check that the symptom continues.
Dose the symptom continue? YES >> GO TO 7.
NO >> The assist torque decreases because of protection function. This is not malfunction. Inspection End.
7.CHECK EPS CONTROL UNIT SIGNAL (4)
With CONSULT
- Start the engine.
CAUTION: Never drive the vehicle.
- Turn steering wheel from full left stop to full right stop.
- Select “TORQUE SENSOR” in “DATA MONITOR” in “EPS”.
- Perform the torque sensor inspection.
Is the inspection result normal? YES >> GO TO 9.
NO >> GO TO 8.
8.CHECK EPS MOTOR
Perform the trouble diagnosis of EPS motor. Refer to STC-24, "Diagnosis Procedure".
Is the inspection result normal? YES >> GO TO 9.
NO >> Repair or replace the specific malfunctioning part.
9.CHECK STEERING WHEEL TURNING FORCE
Check the steering wheel turning force. Refer to ST-7, "Inspection".
Is the inspection result normal? YES >> Inspection End.
NO >> Check the steering wheel turning force for mechanical malfunction. Refer to ST-7, "Inspection".
Unbalance steering wheel turning force and return between
right and left
Description
Unbalance steering wheel turning force and return between right and left.
Diagnosis Procedure
1.CHECK THE ILLUMINATION OF THE EPS WARNING LAMP
Check the EPS warning lamp while engine i ...
Removal and installation
EPS CONTROL UNIT
Removal and Installation
CAUTION:
Disconnect the battery negative terminal before removing the EPS control unit.
The EPS control unit is an integral part of the steering column. I ...
Other materials:
U0140 lost communication (BCM)
DTC Description
DTC DETECTION LOGIC
DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
U0140
LOST COMM (BCM)
(Lost Communication With Body Control Module)
When the ignition switch is ON, TCM is unable to receive the CAN
communications ...
Circuit inspection
DESCRIPTION
In general, testing electrical circuits is an easy task if it is
approached in a logical and organized method.
Before beginning it is important to have all available information on the
system to be tested. Also, get a thorough
understanding of system operation. Then y ...
ECO mode switch (if so equipped)
ECO mode switch
The ECO mode helps to enhance the fuel
economy by controlling the throttle sensitivity and
transmission points.
To turn on the ECO mode, push the ECO mode
switch. The ECO mode indicator light (on the
speedometer) will remain lit while the mode is
active.
To turn off t ...
