Nissan Altima 2007-2012 Service Manual: Heater & air conditioning control system automatic air conditioner
- Basic inspection
- Function diagnosis
- Function information
- Refrigeration system
- Automatic air conditioner system
- Diagnosis system (ECM)
- Self-diagnosis function
- Component diagnosis
- Lan system circuit
- Mode door motor
- Air mix door motor
- Intake door motor
- Blower motor
- Magnet clutch
- Ambient sensor
- In-vehicle sensor
- Sunload sensor
- Intake sensor
- Power supply and ground circuit for front air control
- ECU diagnosis
- Symptom diagnosis
- Air conditioner control
- Insufficient cooling
- Insufficient heating
- Noise
- Self-diagnosis cannot be performed
- Memory function does not operate
- Precaution
Service data and specifications
(SDS)
COMPRESSOR
OIL
REFRIGERANT
...
Basic inspection
...
Other materials:
Spiral cable
Removal and Installation
REMOVAL
CAUTION:
• Before servicing, turn ignition switch OFF, disconnect both battery terminals
and wait at least three
minutes.
• Do not use air tools or electric tools for servicing.
• Do not disassemble the spiral cable.
• Do not allow oil, grease, ...
ECM branch line circuit
Diagnosis Procedure
INSPECTION PROCEDURE
1.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the following terminals and connectors for damage, bend and loose
connection (unit side and connector
side).
- ECM
- Harnes ...
M&A branch line circuit
Diagnosis Procedure
INSPECTION PROCEDURE
1.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the terminals and connectors of the combination meter for damage, bend
and loose connection
(unit side and connector side).
...
