Club Car 2009-20011 Electric Precedent Maintenance And Service Manual page 167

IQ SYSTEM TROUBLESHOOTING – MCOR
5. A reading of 32-46 volts indicates discharged or failed batteries. Each battery should be checked with a
multimeter while under load.
6. A reading of 32 volts or less will not activate discharge machine. If the voltage of the batteries is below 32 volts,
the batteries are deeply discharged or have failed.
7. Recording the battery pack voltage reading while under load provides a more accurate diagnosis of the condition
of the batteries. When the discharge machine is ON, it places the battery pack under load and many times
can help determine if one or more batteries in the set have failed. Testing battery voltage while the batteries
are not under load will not always indicate the true condition of the batteries. For more information about the
batteries, refer to See Section 18 – Batteries. .
TEST PROCEDURE 8 – Key Switch and MCOR Limit Switch Circuit
See General Warnings on page 1-1.
Key Switch and MCOR Limit Switch Circuit Test with the IQDM Handset
1. 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 on page 1-1.
2. Turn the key switch to the OFF position and place the Forward/Reverse switch in the NEUTRAL position.
3. Connect the IQDM to the vehicle.
4. Test the key switch.
4.1. Access the Test menu and select KEY INPUT by using the SCROLL DISPLAY buttons. The IQDM should
indicate OFF when the key switch is in the OFF position.
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, proceed 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 12-2.
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.
Key Switch and MCOR Limit Switch Circuit Test without the IQDM Handset
1. Disconnect the batteries and discharge the controller. See Disconnecting the Batteries – Electric Vehicles
on page 1-3.
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 on page 1-1.
2009-2011 Electric Precedent Maintenance and Service Manual
12
Test Procedures
Page 12-21