EXCEL SYSTEM TROUBLESHOOTING: WITH
ERIC CHARGING
Test Procedures
28
3.4. If the pink wire side does not show BPV, make sure Tow/Run switch in the RUN position. If it is in RUN,
inspect Tow/Run switch, red-to-pink wire spade connector near the solenoid, and sonic welds 5 and 8.
TEST PROCEDURE 5 – Key Switch and MCOR Limit Switch Circuit
See General Warnings on page 1-2.
NOTE:
This is a voltage test.
The MCOR provides FOOT INPUT to the controller.
The key switch provides KEY INPUT to the controller.
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
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 Monitor 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 Monitor 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, Section 28, Page 28-4.
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.
If necessary, see Testing Basics on page 28-16.
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
3.
Place the Tow/Run switch in the RUN position and the Forward/Reverse switch in the NEUTRAL position.
4.
Pin 6 Green Wire:
Access the controller by removing the access panel in the rear body.
See following NOTE.
2014 Precedent
®
Golf Car Maintenance and Service Manual
Page 28-21
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