22
Test Procedures
ELECTRICAL SYSTEM AND TESTING:
ELECTRIC VEHICLES
TEST PROCEDURE 6 – Tow/Run Switch
See General Warning 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.
into the Vehicle on page 23-1.
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 vehicle will not operate, proceed to
Tow/Run Switch Test without the IQDM Handset
.
5.
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 6; otherwise, perform
Tow/Run Switch Test without the IQDM Handset
.
6.
With the IQDM still connected to the vehicle, place the Tow/Run Switch in the TOW position and wait 90 seconds.
7.
If the IQDM display screen goes blank, the Tow/Run switch and connecting wires are operating correctly.
8.
If the IQDM display screen is still active after 90 seconds, the switch has failed closed. Replace the Tow/Run
switch.
See Key Switch Removal on page 24-1.
Tow/Run Switch Test without the IQDM Handset
1.
Set a multimeter to 200 volts DC. With the batteries connected, and the Tow/Run switch in either the TOW or
RUN position, connect the black (–) probe to the negative post of battery no. 8 and connect red (+) probe
(with insulation-piercing probe) on the pink wire close to the two-pin connector on the Tow/Run switch
2.
If the reading is 48-50 volts, proceed to Step 3. If the voltage reading is 0 volts, check the continuity of the pink
18-gauge wire from the large post of the solenoid (2)
to the two-pin connector (3)
at the Tow/Run switch.
1
Figure 22-9
Test Tow/Run Switch
3.
Set a multimeter to 200 volts DC and with the batteries connected, connect the black (–) probe to the negative
post of battery no. 8 and connect red (+) probe (with insulation-piercing probe) on the light green wire (1) close to
the two-pin connector on the Tow/Run switch
4.
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 approximately 0 volts.
5.
If the two-pin connector and pink wire continuity readings are correct, replace the Tow/Run switch.
Page 22-16
2007-2009 Turf 252, Carryall 252 and XRT 900 Maintenance and Service Manual
Содержание CARRYALL 252 2007
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