Nissan Altima (L32) 2007-2012 Service Manual: Heater & air conditioning control system automatic air conditioner

• Basic inspection
1. Diagnosis and repair workflow
2. Inspection and adjustment
• Function diagnosis
1. Function information
2. Refrigeration system
3. Automatic air conditioner system
4. Diagnosis system (ECM)
5. Self-diagnosis function
• Component diagnosis
1. Lan system circuit
2. Mode door motor
3. Air mix door motor
4. Intake door motor
5. Blower motor
6. Magnet clutch
7. Ambient sensor
8. In-vehicle sensor
9. Sunload sensor
10. Intake sensor
11. Power supply and ground circuit for front air control
• ECU diagnosis
• Symptom diagnosis
1. Air conditioner control
2. Insufficient cooling
3. Insufficient heating
4. Noise
5. Self-diagnosis cannot be performed
6. Memory function does not operate
• Precaution