1B-6 AIR CONDITIONING (OPTIONAL)
4) Install new compressor drive belt.
5) Adjust belt tension referring to above procedure.
On-Vehicle Service
Dual Pressure Switch
Inspection
1)
Check dual pressure switch (1) for continuity at normal tempera-
ture (approx. 25
ºC (77 ºF)) when A/C system has a proper
charge of refrigerant and when A/C system (compressor) is
under operation. In each of these cases, switch should show
proper continuity.
2) Check switch for continuity at specified pressure as shown.
A: Approx 200 KPa (2.0 kg/cm
2
)
B: Approx 3200 KPa (32 kg/cm
2
)
C: Approx 260 KPa (2.6 kg/cm
2
)
D: Approx 2600 KPa (26 kg/cm
2
)
A/C Compressor Relay
Inspection
1) Disconnect negative cable at battery.
2) Remove A/C compressor relay (1) from relay box (2).
3) Check resistance between each two terminals as in table
below. If check results are as specified, proceed to next
operation check. If not, replace.
Continuity
No continuity
Pressure
CD
AB
Terminals Resistance
Between A and B
∞
(infinity)
Between C and D
Approx. 170
Ω
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