ELECTRICAL SYSTEM AND TESTING: ELECTRIC
VEHICLES
Test Procedures
22
6.2. If reading is zero volts, check orange/white wire continuity and connection at Pin 19 in 24-Pin connector.
6.3. If there is no continuity in the orange/white wire, or the Pin 19 terminal in the 24-Pin connector is not
properly seated, repair or replace as required.
6.4. If the orange/white wire continuity and 24-Pin connector are correct and there is no voltage at the orange
wire, replace the controller.
TEST PROCEDURE 28 – Rebooting the Onboard Computer
See General Warning on page 1-1.
It is possible the Onboard Computer (OBC) can become “locked up,” causing the OBC solenoid lockout circuit to
malfunction. If this condition is suspected, restart the computer as follows:
1.
Disconnect the batteries and discharge the controller.
See Disconnecting the Batteries – Electric Vehicles,
Section 1, Page 1-4. See following NOTE.
2.
With the Tow/Run switch in the TOW position, connect the battery cables, positive (+) cable first.
the Batteries – Electric Vehicles, Section 1, Page 1-4.
3.
Place Tow/Run switch in the RUN position.
4.
Test drive the vehicle. If the problem has been fixed, the vehicle will function normally. If the problem still exists,
refer to Wiring Diagrams beginning on page 22-2.
TEST PROCEDURE 29 – Battery Warning Light
See General Warning on page 1-1.
1.
Reboot the OBC and drive the vehicle a short distance. When vehicle is first driven, the battery warning light
should illuminate for 2-3 seconds.
See Rebooting the Onboard Computer on page 22-35.
If the battery
warning light does not illuminate when rebooting the OBC, proceed to step 2.
2.
Turn key switch OFF, place Tow/Run switch in TOW and place Forward/Reverse rocker switch in NEUTRAL.
3.
Disconnect the six-pin connector at the OBC.
4.
Remove the wedge lock from the six-pin connector housing that is connected to the vehicle wire harness.
Remove the brown/white wire from the connector plug.
5.
Use a jumper wire with an alligator clip at each end and connect one alligator clip to the negative post of
battery no. 2 and the other alligator clip to the brown/white wire terminal socket that was removed from the
six-pin connector plug.
6.
Install the wedge lock in the six-pin connector housing and reconnect the six-pin connector plug. Place the
Tow/Run switch in the RUN position and the battery light should illuminate. If the light does not illuminate,
replace the battery warning light assembly.
TEST PROCEDURE 30 – Walk Away Braking Relay
See General Warning on page 1-1.
Walk Away Braking Relay Test with the IQDM Handset
1.
Turn the key switch to the OFF position and place the Forward/Reverse switch in the NEUTRAL position.
2.
Connect the IQDM to the vehicle.
See Plugging the Handset into the Vehicle, Section 23, Page 23-1.
3.
Check the FAULTS Menu.
4.
If a 15 RELAY DNC or 30 RELAY COIL FAULT is shown in the list, a walk away braking fault has occurred.
Walk Away Braking Relay Test without the IQDM Handset
2007-2009 Turf 252, Carryall 252 and XRT 900 Maintenance and Service Manual
Page 22-35
