On-Vehicle Inspection
1. INSPECT EXPANSION VALVEa. Check quantity of gas during refrigeration cycle.
b. Set on manifold gauge set.
c. Start engine.
d. Operate the A/C system.
e. Inspect the expansion valve.
1. Run engine at 1,500 rpm for a least 5 minutes.
2. Check the high pressure reading is 1.37 - 1.57 MPa (14 - 16 kgf/Sq.cm, 19 g - 288 psi).
3. Check the low pressure reading.
If the low pressure reading is 0 kPa (0 kgf/Sq.cm, 0 psi), replace the expansion valve.
2. REMOVE REAR DOOR SCUFF PLATE RH
3. REMOVE REAR FLOOR MAT SUPPORT PLATE
4. REMOVE QUARTER TRIM PANEL RH
5. INSPECT THERMISTOR RESISTANCE
a. Disconnect the connector.
b. Measure resistance between terminals 3 and 4.
Standard resistance: Approx. 1.5 K Ohms at 25° C (77° F)
If resistance is not as specified, proceed to "INSPECTION" .
6. INSPECT MAGNETIC VALVE CONTINUITY
a. Disconnect the connector.
b. Check the continuity exists between terminals 1 and 2.
If resistance is not as specified, proceed to "INSPECTION".
7. CHECK FOR LEAKAGE OF REFRIGERANT
a. Remove the power transistor.
b. Using a gas leak detector, check for leakage of refrigerant.
If there is leakage, check the evaporator or tightening torque at the joints.