Nissan GT-R (R35) · Service Manual
STEERING
STEERING › STEERING CONTROL SYSTEM › SYMPTOM DIAGNOSIS
UNBALANCE STEERING WHEEL TURNING FORCE (TORQUE VARIATION)
EPS
Description
Diagnosis Procedure
Description
Hard steering when fully turning the steering wheel.
Light steering when driving at a high speed.
Diagnosis Procedure
1.CHECK SYSTEM FOR POWER SUPPLY AND GROUND
Perform trouble diagnosis for power supply and ground. Refer to
Diagnosis Procedure (GT-R certified NISSAN dealer)
.
Is the inspection result normal?
YES
>>
GO TO 2.
NO
>>
Repair or replace error-detected parts.
2.CHECK SYSTEM FOR VEHICLE SPEED SIGNAL
Perform trouble diagnosis for vehicle speed signal. Refer to
Diagnosis Procedure (GT-R certified NISSAN dealer)
.
Is the inspection result normal?
YES
>>
GO TO 3.
NO
>>
Repair or replace error-detected parts.
3.CHECK SYSTEM FOR ENGINE SPEED SIGNAL
Perform trouble diagnosis for engine speed signal. Refer to
Diagnosis Procedure (GT-R certified NISSAN dealer)
.
Is the inspection result normal?
YES
>>
GO TO 4.
NO
>>
Repair or replace error-detected parts.
4.CHECK SYSTEM FOR POWER STEERING SOLENOID VALVE
Perform trouble diagnosis for power steering solenoid valve. Refer to
Diagnosis Procedure (GT-R certified NISSAN dealer)
.
Is the inspection result normal?
YES
>>
Perform the symptom diagnosis for the steering system. Refer to
NVH Troubleshooting Chart
.
NO
>>
Repair or replace error-detected parts.
1.CHECK SYSTEM FOR POWER SUPPLY AND GROUND