Nissan Altima (L32) 2007-2012 Service Manual: Symptom diagnosis
UNBALANCE STEERING WHEEL TURNING
FORCE (TORQUE VARIATION)
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 circuit. Refer to
STC-6, "Diagnosis Procedure".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace damaged parts.
2.CHECK SYSTEM FOR VEHICLE SPEED SIGNAL
Perform trouble diagnosis for vehicle speed signal. Refer to STC-13,
"Diagnosis Procedure".
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace damaged parts.
3.CHECK SYSTEM FOR ENGINE SPEED SIGNAL
Perform trouble diagnosis for engine speed signal. Refer to STC-10,
"Diagnosis Procedure".
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace damaged parts.
4.CHECK SYSTEM FOR POWER STEERING SOLENOID VALVE
Perform trouble diagnosis for power steering solenoid valve. Refer to STC-8,
"Diagnosis Procedure".
Is the inspection result normal?
YES >> Perform the symptom diagnosis for the steering system. Refer to ST-3,
"NVH Troubleshooting
Chart".
NO >> Repair or replace damaged parts.
POWER STEERING CONTROL UNIT
Reference Value
TERMINAL LAYOUT
PHYSICAL VALUES
CAUTION:
When using circuit tester or oscilloscope to measure voltage for inspection, be
sure not to extend for ...
Precautions for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER"
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT
PRE-TENSION ...
Other materials: Fuel-filler door
Opener operation
The fuel-filler door release is located below
the instrument panel. To open the fuel-filler
door, pull the release. To lock, close the fuel-filler
door securely.
Fuel-filler cap
WARNING
Gasoline is extremely flammable and
highly explosive under certain conditions.
You could be ...
Opener operation
Instrument panel
WARNING
Do not drive with the trunk lid open.
This could allow dangerous exhaust
gases to be drawn into the vehicle. For
additional information, see "Exhaust
gas (carbon monoxide)".
Intelligent Key
Closely supervise children when they
are around cars to prevent them
fro ...
Additional maintenance items for
severe operating conditions
Additional maintenance items for severe
operating conditions should be performed
on vehicles that are driven under
especially demanding conditions. Additional
maintenance items should be performed
if you primarily operate your vehicle
under the following conditions:
Repeated short trips of less th ...