ELECTRICAL SYSTEM AND TESTING
Test Procedures
2005 Precedent IQ System Electric Golf Car Maintenance and Service Manual
Page 11-21
11
4.2. While monitoring the IQDM display screen, turn the key switch to the ON position. The IQDM
should indicate ON.
4.3. If the IQDM does not indicate that KEY INPUT is ON when the key switch is in the ON position, pro-
ceed to the following procedure, Key Switch and MCOR Limit Switch Circuit Test without the IQDM
Handset. If the key switch functions as described, proceed to the following step.
See following
NOTE.
NOTE: The key switch MUST function properly in order to test the MCOR limit switch with the IQDM handset.
5. Test the MCOR limit switch.
5.1. Select FOOT INPUT on the Test menu by using the SCROLL DISPLAY buttons on the IQDM.
5.2. The IQDM should indicate that FOOT INPUT is OFF when the accelerator pedal is not pressed,
regardless of the key switch position.
5.3. With the key switch in the ON position, press the accelerator pedal. The IQDM should indicate that
FOOT INPUT is ON when the accelerator pedal is pressed.
6. If any reading is obtained that is not described in steps 4 and 5, perform the following steps:
6.1. Check the wiring of the key switch and MCOR.
See Wiring Diagrams on page 11-2.
6.2. Check the continuity of the key switch wires and the MCOR limit switch wires.
7. If the problem was not found, proceed to the following procedure, Key Switch and MCOR Limit Switch
Circuit Test without the IQDM Handset on page 11-21.
Key Switch and MCOR Limit Switch Circuit Test without the IQDM Handset
1. Disconnect the battery cables as instructed.
See WARNING “To avoid unintentionally starting...” in
General Warnings, Section 1, Page 1-1.
2. Place chocks at the front wheels and lift the rear of the vehicle with a chain hoist or floor jack. Position
jack stands under the frame rails just forward of each spring mount.
See WARNING “Lift only one
end...” in General Warnings, Section 1, Page 1-2.
3. Turn the key switch to the OFF position and place the Forward/Reverse switch in the NEUTRAL position.
4. Test the key switch.
4.1. Remove the instrument panel.
See step 2 of Key Switch Removal, Section 12, Page 12-1.
4.2. Using a multimeter set to 200 ohms, place the red (+) probe on the key switch terminal with the blue
wire. Place the black (–) probe on the other key switch terminal.
4.3. With the key switch in the OFF position, the multimeter should indicate that continuity is not present.
4.4. With the key switch in the ON position, the multimeter should indicate that continuity is present.
4.5. If any other reading is obtained, replace the key switch.
See Key Switch Removal, Section 12,
Page 12-1.
4.6. If the key switch operates as described in the previous steps, install the instrument panel in the
reverse order of removal and proceed to the following step.
5. Test the MCOR limit switch.
See following NOTE.
NOTE: Make sure that the key switch is operating correctly and that the key switch and instrument panel
are properly installed before proceeding.
5.1. With batteries connected and using a multimeter set to 200 volts DC, place the black (–) probe on
the battery no. 4 negative post and place the red (+) probe (with insulation-piercing probe) on the
green wire close to the two-pin connector on the MCOR.
