12
Test Procedures
EXCEL SYSTEM TROUBLESHOOTING
6.4. If the continuity readings are correct, proceed to step 7.
7.
Place the Forward/Reverse switch in REVERSE. Using a multimeter set to 200 volts DC, place the black (–)
probe on the orange/white wire terminal end (that was disconnected from the reverse buzzer) and place the red
(+) probe on battery no. 1 positive post. The reading should be approximately 48 volts (full battery voltage).
7.1. If the voltage reading is correct, replace the reverse buzzer.
7.2. If reading is zero volts, check orange/white wire continuity and connection at Pin 7 in 16-Pin connector.
7.3. If there is no continuity in the orange/white wire, or the Pin 7 terminal in the 16-Pin connector is not properly
seated, repair or replace as required.
7.4. If the orange/white wire continuity and 16-Pin connector are correct and there is no voltage at the orange
wire, replace the controller.
TEST PROCEDURE 25 – Rebooting the Onboard Computer
See General Warnings 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 battery cables and discharge the controller as instructed.
See WARNINGS “To avoid
unintentionally starting...” and “After disconnecting the batteries, wait 90 seconds...” in General Warnings
on page 1-1. See following NOTE.
NOTE:
Wait at least 90 seconds for the capacitors in the speed controller to discharge. The capacitors in the speed
controller must be fully discharged in order to reboot the OBC.
2.
Place the Tow/Run switch in the TOW position and connect the battery cables, positive (+) cable first. Tighten
battery terminals to 110 in-lb (12.4 N·m) and coat terminals with Battery Terminal Protector Spray (CCI P/N
1014305) to minimize corrosion.
3.
Place Tow/Run switch in the RUN position.
4.
Test drive the vehicle. If the vehicle functions normally the problem is corrected. If the problem still exists,
refer to Wiring Diagrams on page 12-2.
TEST PROCEDURE 26 – Battery Warning Light
See General Warnings 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 10 seconds.
See Test Procedure 25 – Rebooting the Onboard Computer on page 12-34.
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.
Using a jumper wire with an alligator clip at each end, connect one alligator clip to the negative post of battery
no. 1 and the other alligator clip to the brown/white wire terminal socket that was removed from the six-pin
connector plug.
6.
Install the wedgelock 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.
Page 12-34
2009 Electric Precedent Maintenance and Service Manual
