wsm ME8200, Workshop Manual

Page: 530 / 543

10-S39
ME8200, ME9000, WSM CABIN
LO Pressure Side
1. Disconnect 2P connector of pressure switch.
2. Measure the resistance with an ohmmeter across the connector
terminals.
3. If 0 ohm is not indicated at normal condition, there is no
refrigerant in the refrigerating cycle because gas leaks or
pressure switch is defective.
(Reference)
• The resistance of dual switch is 0 ohm in normal running, but is
becomes infinity if the pressure is abnormal (out of factory spec.).
Because the dual switch starts to work.
W1023511
(H) Front Windshield Wiper
Front Wiper Switch
1. Remove the outer roof, and disconnect the front wiper connector
(1).
2. Perform the following checkings 1) and 2).
1) Connector Voltage
1. Turn the main switch ON.
2. Measure the voltage with a voltmeter across the connector 4
terminal and chassis.
3. If the voltage differs from the battery voltage (11 to 14 V), the
wiring harness, fuse or main switch is faulty.
2) Front Wiper Switch
1. Check the continuity through the switch with an ohmmeter.
2. If the continuity specified below are not indicated, the switch is
faulty.
W1023871
Setting pressure
Factory
spec.
Pressure
switch
OFF
More than
approx. 0.196 MPa
2.0 kgf/cm
2
28.4 psi
(1) HI (High Pressure Side) Charging
Valve
(2) LO (Low Pressure Side) Charging
Valve
(3) HI Pressure Valve
(4) LO Pressure Valve
(5) Manifold Gauge
(6) Charging Hose (Blue)
(7) Charging Hose (Red)
(8) Pressure Switch
(9) Air Conditioner Unit
Voltage 4 terminal – Chassis Approx. battery voltage
IN +1 E WY WM
WASH I
● ● ● ●
ON
● ●
OFF
INT
● ●
WASH II
● ● ● ●
(1) Front Wiper Switch Connector
KiSC issued 03, 2007 A