Club Car Precedent 2014, Maintenance And Service Manual

Page: 172 / 548

13
Test Procedures
EXCEL SYSTEM TROUBLESHOOTING: WITH
POWERDRIVE CHARGER
– A reading of 200 to 250 ohms should be obtained for factory-installed solenoids (Figure 13-7, Page 13-16) . If
not, replace the solenoid.
– A reading of 180 to 190 ohms should be obtained for service replacement solenoids (Figure 13-8, Page
13-16) . If not, replace the solenoid.
+
2m
20
m
200
m
2k
200
200
200 200
20
2
200
m
500
20k
200k
2000
k
1000
OFF
WAVETEK 5XL
V
V
V
A
! ! COM 200nA
MAX
1000 ---
750V
FUSED
+
2m
20
m
200
m
2k
200
200
200 200
20
2
200
m
500
20k
200k
2000
k
1000
OFF
WAVETEK 5XL
V
V
V
A
! ! COM 200nA
MAX
1000 ---
750V
FUSED
1
Figure 13-7 Activating Coil Test – Factory-installed
Solenoid
2500-20000-10283
Figure 13-8 Activating Coil Test – Service Replacement
Solenoid
TEST PROCEDURE 4 – MCOR3 Voltage
See General Warnings on page 1-2.
The accelerator position, which is proportional to the MCOR3 voltage, can be displayed with the IQDM handset. If an
IQDM handset is not available, proceed to
MCOR3 Voltage Test without the IQDM Handset .
MCOR3 Voltage 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 1-2. See also following WARNING.
WARNING
• The key switch should be placed in the OFF position and left in the OFF position for the duration
of this test.
2. Connect the IQDM to the vehicle.
3. Access the Test menu and select THROTTLE % by using the SCROLL DISPLAY buttons.
4. The IQDM should indicate 0% with the pedal not pressed. While monitoring the IQDM display screen, slowly
press the accelerator pedal. As the pedal is pressed, the IQDM should indicate a steady, incremental rise from
0% (pedal not pressed) to 100% (pedal fully pressed).
See following NOTE.
NOTE: Observe closely to see if throttle input percentage randomly or sporadically fluctuates with pedal at rest, during
pedal travel and with pedal fully pressed. If it fluctuates, the MCOR3 is defective and must be replaced.
5. If the MCOR3 passes the previous test, press and hold the accelerator pedal to the floor. By hand, gently
move the pedal side to side and see if the throttle input percentage fluctuates from 100%. If it fluctuates, the
MCOR3 is defective and must be replaced.
6. If throttle input percentage does not reach 100% in the previous steps, proceed to MCOR3 Voltage Test without
the IQDM Handset.
MCOR3 Voltage Test without the IQDM Handset
Page 13-16 2014 Precedent ® Golf Car Maintenance and Service Manual