EXPANSION VALVE
INSPECTION
Refer to “Troubleshooting Procedure Using Manifold Gauge Set”
earlier in this Section.
DUAL PRESSURE SWITCH
INSPECTION
1) Check dual pressure switch (1) for continuity at normal temper-
ature (approx. 25
C (77
F)) when A/C system has a proper
charge of refrigerant and when A/C system (compressor) is un-
der operation. In each of these cases, switch should show prop-
er continuity.
Pressure
A
B
C
D
2) Check switch for continuity at specified pressure as shown.
A: Approx. 210 kPa (2.1 kg/cm
2
)
B: Approx. 2650 kPa (26.5 kg/cm
2
)
C: Approx. 230 kPa (2.3 kg/cm
2
)
D: Approx. 2060 kPa (20.6 kg/cm
2
)
Tightening torque for dual pressure switch
10 N·m (1.0 kg-m, 8.0 lb-ft)
Continuity
No continuity
A/C SWITCH
REMOVAL
1) Disconnect A/C switch coupler from instrument panel harness.
2) Remove meter cluster, refer HEATER CONTROL LEVER in
section 1A.
3) Pull out A/C switch by unlock the locking part.
INSPECTION
Press A/C Switch button and check if there is continuity between
terminals “A” and “B”.
With battery voltage (+) connected to terminal “C” and (–) to ter-
minal “A”, press A/C Switch button and check if indicator lamp
lights.
INSTALLATION
Reverse removal procedure for installation.
1. Blower fan and A/C switch
AIR CONDITIONING (OPTIONAL)
1B-21