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: Remote Engine Start
The button will be on the NISSAN
Intelligent Key if the vehicle has Remote
Engine Start. This feature allows the engine
to start from outside the vehicle.
The following features may be affected
when Remote Engine Start is used:
Vehicles with a manual climate control
system (if so equipped )will ...
Controls
Fan speed control dial
The fan speed control dial turns
the
fan on and off and controls fan speed.
Air flow control buttons
The air flow control buttons allow you to
select the air flow outlets.
- Air flows from center and side
vents.
- Air flows from center and side
vents and foot outlets.
- Air ...
ProPILOT Assist (if so equipped)
WARNING
Failure to follow the warnings and instructions
for proper use of the ProPILOT
Assist system could result in serious
injury or death.
ProPILOT Assist is not a self-driving
system. Within the limits of its capabilities,
as described in this manual, it
helps the driver with certain drivin ...
ECU diagnosis
Precaution