Club Car 2009-20011 Electric Precedent Maintenance And Service Manual page 245

EXCEL SYSTEM TROUBLESHOOTING – MCOR
TEST PROCEDURE 6 – Tow/Run Switch
See General Warnings on page 1-1.
Tow/Run Switch Test with the IQDM Handset
1. With the Tow/Run switch in the RUN position, connect the IQDM to the vehicle.
2. Immediately after the IQDM is connected to the vehicle, the screen should display a copyright notice and the
IQDM model number.
3. If the IQDM display screen is blank, drive the vehicle a short distance to activate the onboard computer.
4. If the IQDM display screen begins to work after the vehicle has been driven, turn the key switch to the OFF
position and proceed to step 5; otherwise, perform the following procedure, Tow/Run Switch Test without
the IQDM Handset.
5. With the IQDM still connected to vehicle, place Tow/Run Switch in TOW position and wait 90 seconds.
6. If the IQDM display screen goes blank after 90 seconds, the Tow/Run switch and connecting wires are operating
correctly.
7. If the IQDM display screen is still active after 90 seconds, the switch has failed closed. Replace the Tow/Run
switch. See Tow/Run Switch Removal on page 17-6.
Tow/Run Switch Test without the IQDM Handset
1. Remove the bolt that secures the electronics module to the battery bucket and pull module forward to access
Tow/Run switch wires.
2. With the batteries connected and using a multimeter set on 200 volts DC, connect the black (–) probe to the
negative post of battery no. 4 (4 x 12-Volt battery set) or battery no. 6 (6 x 8-Volt battery set) and connect red (+)
probe (with insulation-piercing probe) on the pink wire close to the connector on the Tow/Run switch.
WARNING
• The key switch should be placed in the OFF position and left in the OFF position for the duration
of this test.
3. With the Tow/Run switch in the RUN position, the reading should be approximately 48-50 volts. With the switch in
the TOW position, the reading should be below approximately 5 volts.
4. If the reading is above 5 volts with the switch in the TOW position, replace the switch.
5. If the reading is below 5 volts with switch in the RUN position, check continuity of the pink 16-gauge wire from
the large post of the solenoid to the connector at the Tow/Run switch.
6. If the continuity readings are correct, replace the Tow/Run switch.
2009-2011 Electric Precedent Maintenance and Service Manual
14
Test Procedures
Page 14-19