Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota 4Runner 1996-2003 Approved SIL techinfo.toyota.com ileaf 02toyrm 02toypdf 02rmsour 2002 024runne ac coouni ovi

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AC-24
                        AIR CONDITIONING   -   COOLING UNIT


                                  COOLING UNIT                                                 AC3EZ-01


                                  ON-VEHICLE INSPECTION
                                  1.    INSPECT FOR LEAKAGE OF REFRIGERANT
                                  (a)   Remove the glove compartment door
                                        (See page BO-69 ).




                                  (b)    Manual A/C:
                                         Remove the blower resistor.
                                         (1) Disconnect the connector.
                                         (2) Remove the 2 screws and blower resistor.
                                  (c) Using a gas leak detector, check for leakage.
                                  If there is leakage, check the tightening torque at the joints or
                                  check the evaporator.
                                  (d) Manual A/C:
                         N14253          Install the blower resistor with the 2 screws.
                                  (e) Install the glove compartment door (See page BO-76 ).
                                  2.     INSPECT EXPANSION VALVE
                                  (a) Check quantity of gas during refrigeration cycle.
                                  (b) Set on manifold gauge set.
                                  (c) Run engine.
                                         (1) Run the engine at 1,500 rpm for at least 5 minutes.
                                         (2) Then check that the high pressure reading is 1.37
                                                - 1.57 Mpa (14 - 16 kgm/cm2, 199 - 288 psi).
                                  (d) Check expansion valve.
                                  If the expansion valve is faulty, the low pressure reading will
                                  drop to 0 kPa (0 kgf/cm2, 0 psi).
                                  HINT:
                                  When the lower pressure drop to 0 kPa (0 kgf/cm2, 0 psi), feel
                                  the receiver's IN and OUT sides for no temperature difference.




                                  3.     INSPECT THERMISTOR RESISTANCE
                                  (a)    Disconnect the connector.
                                  (b)    Measure resistance between terminals.
                                         Standard resistance: 1,500  at 25

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