Nissan Altima (L32) 2007-2012 Service Manual: Basic inspection
DIAGNOSIS AND REPAIR WORKFLOW
Work Flow
DETAILED FLOW
1.COLLECT THE INFORMATION FROM THE CUSTOMER
It is also important to clarify customer complaints before inspection. First of all, reproduce symptoms, and understand them fully. Ask customer about his/her complaints carefully. In some cases, it will be necessary to check symptoms by driving vehicle with customer.
>> GO TO 2.
2.BASIC INSPECTION
1. Check the power steering fluid leakage and the power steering fluid level. Refer to ST-8, "Inspection".
2. Check the drive belt tension. Refer to EM-16, "Checking Drive Belts" (QR25DE), EM-121, "Checking Drive Belts" (VQ35DE).
3. Check the power steering gear for damages, cracks and oil leakage. Refer to ST-8, "Inspection".
4. Check the relief oil pressure. Refer to ST-12, "Inspection".
>> GO TO 3.
3.TROUBLE DIAGNOSIS FOR SYMPTOM
Perform the diagnosis by symptom. Refer to STC-21, "Description".
>> GO TO 4.
4.FINAL CHECK
Check the input/output standard values for the power steering control unit.
Are the power steering control unit input/output values within standard ranges respectively? YES >> Inspection End
NO >> GO TO 2.
Function diagnosis
EPS SYSTEM
System Diagram
CONTROL DIAGRAM
System Description
• The EPS system controls the power steering solenoid valve through the power
steering control unit.
• The valve driving vol ...
Other materials:
BCM (Body control module)
Reference Value
VALUES ON THE DIAGNOSIS TOOL
Terminal Layout
Physical Values
1: Sedan only
2: With LH front window anti-pinch
3: With LH and RH front window anti-pinch
4: With Intelligent Key
5: Without Intelligent Key
Wiring Diagram-Coupe
...
Control cable
Exploded View
1. Control lever
2. Control device assembly
3. Control cable socket
4. Retainer grommet
5. Control cable
6. Bracket
7. Lock plate
8. Manual lever
Removal and Installation
REMOVAL
1. Shift control lever to "P".
2. Remove the air filter assembly. Refer to EM-25 ...
Idle air volume learning
Description
Idle Air Volume Learning is a function of ECM to learn the idle air volume
that keeps engine idle speed within
the specific range. It must be performed under the following conditions:
• Each time the electric throttle control actuator or ECM is replaced.
• Idle speed o ...
