Club Car IntelliTach XRT 1550, Maintenance And Service Manual

Page: 260 / 564

TROUBLESHOOTING AND ELECTRICAL SYSTEM: DIESEL VEHICLES Test Procedures
Page 11c-24 2007 Carryall 295/295 SE & XRT 1550/1550 SE Gasoline, Diesel and IntelliTach M & S Manual
11C
switch.
3.3. The reading should indicate approximately 12 VDC with key in the ON position. If so, proceed to
step 4. If not, perform the following test procedures:
• Check 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 5 – Key Switch (ON Position) on page 11c-19.
• Check diode 2. See Test Procedure 13B – Diode 2 on wire 40 on page 11c-31.
• Check for continuity of the wire harness on wires w114, w146, w121, w48, w37, w24, and w125. See
Wiring Diagram on page 11c-6.
• Check the engine coolant thermostat switch. See Test Procedure 11 – Thermostat Switch on
page 11c-25.
4. If the reading is 12 VDC with key in the ON position, check relay function.
4.1. At the relay, place the meter probes to check continuity between the 14-gauge yellow wire (w107)
and the 14-gauge blue wire (w145) relay terminals (Figure 11c-20, Page 11c-24) when the relay
is activated.
4.2. At the relay, ground the yellow/black fan relay wire (w114) to the frame with a jumper wire.
4.3. Turn the key switch ON. The relay should click, the fan should run and the meter should indicate
continuity. See following NOTE. If not, replace the relay.
NOTE: The start, differential (if equipped), and accessory relays may be removed temporarily to isolate
the sound of the fan relay click.
5. If the fan runs constantly, even with the key switch OFF, remove the relay. If fan stops, the relay contacts
have failed closed and the relay must be replaced.
Figure 11c-19 Check Power To Fan Relay Figure 11c-20 Fan Relay Contact Test