Club Car 2007 Carryall 295 Maintenance And Service Manual page 259

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TROUBLESHOOTING AND ELECTRICAL SYSTEM: DIESEL VEHICLES
5. Monitor the multimeter. The reading should indicate 0 volts with the key in the OFF position and the For-
ward/Reverse handle in the NEUTRAL position. The reading should indicate approximately 12 VDC
when the key is in the ON position and the differential relay should click. See following NOTE.
NOTE: The start, fan, and accessory relays may be removed to isolate the sound of the differential relay
click.
6. If the reading is 12 VDC and the relay does not click with the key switch in the ON position and the For-
ward/Reverse handle in the NEUTRAL position, replace the relay.
7. If the reading is 12 VDC and the relay clicks when the key is in the ON position, check the relay contacts.
7.1. Set the multimeter to 200 ohms.
7.2. Check for continuity between the 18-gauge gray wire (w111) and the 18-gauge purple/white wire
(w118) relay terminals (Figure 11c-18, Page 11c-22).
7.3. Monitor the multimeter. The multimeter should indicate continuity with the key in the OFF position.
The multimeter should NOT indicate continuity when the key is in the ON position.
7.4. If the multimeter indicates continuity while the key is in the ON position and the relay clicks, the con-
tacts have failed closed. Replace the relay.
8. If the reading obtained in step 5 is not 12 VDC with the key in the ON position, perform the following test
procedures:
• Check the battery. See Test Procedure 1 – Battery on page 11c-13.
• Check the 30-amp fuse (on w125). See Test Procedure 2 – Fuse on page 11c-16.
• Check the key switch. See Test Procedure 4 – Key Switch (Starter Circuit) on page 11c-18.
• Check diode 3. See Test Procedure 13C – Diode 3 on wire 144 on page 11c-31.
• Check the neutral switch on the transmission housing. See Test Procedure 14 – Neutral Switch
(Transmission) on page 11c-35.
• Check for continuity of the wire harness on wires w144, w142, w139, w136, w121, w48 and w37. See
Wiring Diagram on page 11c-6.
TEST PROCEDURE 10 – FAN RELAY
See General Warning, Section 1, Page 1-1.
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).
1. Turn the key switch OFF and remove the key. Place the Forward/Reverse handle in NEUTRAL. Chock
the wheels.
2. Disconnect the 16-gauge green wire (w127) from the starter solenoid coil to prevent the vehicle from
unintentionally starting (Figure 11c-13, Page 11c-20). See following WARNING.
ý
WARNING
• Failure to disconnect the wire from the solenoid coil could result in an unexpected engine
start when performing this test.
3. Check power to the relay.
3.1. Set the multimeter to 20 VDC and place the probes to measure the voltage between the 18-gauge
yellow fan relay wire (w146) terminal and the frame ground (Figure 11c-19, Page 11c-24).
3.2. Monitor the multimeter. The reading should indicate 0 volts with the key in the OFF position. If not,
check for a short or incorrect wiring between the yellow fan relay wire (w146) terminal and the key
2007 Carryall 295/295 SE & XRT 1550/1550 SE Gasoline, Diesel and IntelliTach M & S Manual
11C
Test Procedures
Page 11c-23

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