Nissan Altima 2007-2012 Service Manual: Refrigeration system
HFC-134a (R-134a) Service Procedure
SETTING OF SERVICE TOOLS AND EQUIPMENT
WARNING: Avoid breathing the A/C refrigerant and oil vapor or mist. Exposure may irritate eyes, nose, and throat.
Remove the HFC-134a (R-134a) from the A/C system using certified service equipment meeting the requirements of SAE J2210 (R-134a recycling equipment) or SAE J2201 (R-134a recovery equipment).
If an accidental system discharge occurs, ventilate the work area before resuming service. Additional health and safety information may be obtained from the refrigerant and oil manufacturers.
Discharging Refrigerant
Evacuating System and Charging Refrigerant
Discharging, Evacuating, and Recharging the A/C System
*1 HA-21, "Maintenance of Oil Quantity in Compressor"
*2 HA-25, "Checking of Refrigerant Leaks"
*3 HA-25, "Checking of Refrigerant Leaks"
*4 HAC-5, "Operational Check"
*5 HA-4, "Contaminated Refrigerant"
Checking of Refrigerant Leaks
Perform a visual inspection of all refrigeration parts, fittings, hoses and components for signs of A/C oil leakage, damage and corrosion. A/C oil leakage may indicate an area of refrigerant leakage. Allow extra inspection time in these areas when using either an electronic refrigerant leak detector or fluorescent dye leak detector.
If dye is observed, confirm the leak with an electronic refrigerant leak detector. It is possible a prior leak was repaired and not properly cleaned.
When searching for leaks, do not stop when one leak is found but continue to check for additional leaks at all system components and connections.
When searching for refrigerant leaks using an electronic leak detector, move the probe along the suspected leak area at 25 - 50 mm (1 - 2 in) per second and no further than 6 mm (1/4 in) from the component.
CAUTION: Moving the electronic leak detector probe slower and closer to the suspected leak area will improve the chances of finding a leak.
Oil
Maintenance of Oil Quantity in Compressor The oil in the compressor circulates through the system with the refrigerant. Add oil to compressor when replacing any component or after a large refriger ...Fluorescent leak detector
Checking System for Leaks Using the Fluorescent Leak Detector 1. Check A/C system for leaks using the UV lamp and safety goggles (J-42220) in a low sunlight area (area without windows preferable ...Other materials:
P2100, p2103 throttle control motor
relay
Description
Power supply for the throttle control motor is provided to the ECM via
throttle control motor relay. The throttle
control motor relay is ON/OFF controlled by the ECM. When the ignition switch is
turned ON, the ECM sends
an ON signal to throttle control motor relay and battery vol ...
Side ventilator grilles
Removal and Installation
REMOVAL
Release the tabs and then remove the side ventilator grilles using a suitable
tool.
CAUTION:
Use a suitable tool to remove the grille to avoid damage to the instrument
panel.
INSTALLATION
Installation is in the reverse order of removal.
REMOVAL
1. ...
P2119 electric throttle control
actuator
Description
Electric throttle control actuator consists of throttle control motor,
throttle position sensor, etc.
The throttle control motor is operated by the ECM and it opens and closes the
throttle valve.
The throttle position sensor detects the throttle valve position, and the
open ...