Club Car 2007 Carryall 295 Maintenance And Service Manual page 261

TROUBLESHOOTING AND ELECTRICAL SYSTEM: DIESEL VEHICLES
TEST PROCEDURE 11 – THERMOSTAT SWITCH
See General Warning, Section 1, Page 1-1.
The thermostat switch houses two independent switches. Each switch closes the circuit between the thermo-
stat housing (effectively frame ground) and the appropriate wire of the thermostat switch (white or black).
THERMOSTAT SWITCH
WIRE
FUNCTION
COLOR
White Radiator Fan
Temperature Warning
Black
Light
The fan relay closes the fan thermostat switch and activates the radiator fan when the engine coolant reaches
a temperature range of 187 °F to 198 °F (86 °C to 92 °C).
The engine coolant thermostat switch closes and provides a ground to the coolant temperature warning light
when the engine block reaches a temperature range of 216 °F to 226 °F (102 °C to 108 °C). See following
NOTE.
NOTE: Keep the battery connected during this test procedure.
1. Turn the key switch OFF and remove the key. Place the Forward/Reverse handle in NEUTRAL. Chock
the wheels.
2. Drain coolant from engine. See Engine Coolant Change, Section 15, Page 15-1. See following
WARNING.
ý
WARNING
• Hot! Coolant system is pressurized. Do not remove thermostat switch while engine is hot.
3. Disconnect the two-pin connector between the thermostat switch and the wire harness (Figure 11c-21,
Page 11c-26).
4. Test for failed switches in closed condition.
4.1. Set a multimeter to 200 ohms.
4.2. Use an alligator clip to connect the black (–) probe of the multimeter to the frame (ground).
4.3. Use an alligator clip to connect the red (+) probe of the multimeter to the white wire terminal.
4.4. The multimeter should indicate an over limit (no continuity) at room temperature. If the multimeter
indicates continuity at room temperature, replace the thermostat switch. See Thermostat Switch
Removal, Section 12c, Page 12c-17.
4.5. Leave the black (–) probe of the multimeter connected to the frame (ground). Use an alligator clip
to connect the red (+) probe of the multimeter to the black wire terminal.
4.6. The multimeter should indicate an over limit (no continuity) at room temperature. If the multimeter
indicates continuity at room temperature, replace the thermostat switch. See Thermostat Switch
Removal, Section 12c, Page 12c-17.
2007 Carryall 295/295 SE & XRT 1550/1550 SE Gasoline, Diesel and IntelliTach M & S Manual
CONTACT OPERATION:
CLOSE ON RISE
187 °F to 198 °F (86 °C to 92 °C)
216 °F to 226 °F (102 °C to 108 °C)
Test Procedures
OPEN
165 °F (74 °C)
185 °F (85 °C)
Page 11c-25
11C