Club Car 2009 Precedent, Руководство по техническому обслуживанию и ремонту

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IQ SYSTEM TROUBLESHOOTING Test Procedures
11
TEST PROCEDURE 21 – Motor Speed Sensor
See General Warnings on page 1-1.
Motor Speed Sensor Test with the IQDM Handset
CAUTION
• Perform the following procedure only on a level surface. To avoid injury or property damage, ensure
that the path of the vehicle is clear before pushing vehicle.
1. Turn the key switch to the OFF position and place the Forward/Reverse switch in the NEUTRAL position.
2. Connect the IQDM to the vehicle.
3. Access the Test menu and select SPEED PULSES by using the SCROLL DISPLAY buttons. The IQDM should
indicate OFF when the vehicle is at rest.
4. While monitoring the IQDM display screen, slowly push the vehicle a short distance (about 3 feet (1 meter)). The
IQDM should indicate ON for speed sensor pulses while the wheels are in motion.
5. If the IQDM does not indicate ON while the wheels are in motion, proceed to the following procedure, Motor
Speed Sensor Test without the IQDM Handset .
Motor Speed Sensor Test without the IQDM Handset
1. Turn the key switch to the OFF position and place the Forward/Reverse switch in the NEUTRAL position.
2. With batteries connected, disconnect the three-pin connector at the motor speed sensor.
3. Check voltage at black/white wire:
3.1. Using a multimeter set to 200 volts DC, place the red (+) probe on the battery no. 1 positive post and
place the black (–) probe on the black/white wire terminal socket in the three-pin connector. The voltage
reading should be 48 to 50 volts (full battery voltage).
3.2. If the reading is zero volts, check the continuity of the black/white wire from the 16-pin connector at the
speed controller to the three-pin connector at the motor speed sensor. If the continuity is correct, replace
the speed controller.
4. Check voltage at the red wire:
4.1. With Tow/Run switch in the RUN position and using a multimeter set to 20 volts DC, place the black (–)
probe on the battery no. 4 (4 x 12-Volt battery set) or battery no. 6 (6 x 8-Volt battery set) negative post
and place red (+) probe on red wire terminal socket in three-pin connector. The voltage reading should
be approximately 15-16 volts.
4.2. If the voltage reading is zero volts, check the continuity of the red wire from the 16-pin connector at the
speed controller to the three-pin connector at the motor speed sensor. If the wire continuity is correct,
replace the speed controller.
4.3. If the reading is below 14 volts, replace the speed controller.
4.4. If the voltage reading is correct, proceed to the following step.
5. Check voltage at the light green wire:
5.1. Using a multimeter set to 20 volts DC, place the black (–) probe on the battery no. 4 (4 x 12-Volt battery
set) or battery no. 6 (6 x 8-Volt battery set) negative post and place the red (+) probe on the light green
wire female terminal in the three-pin connector at the motor speed sensor. The voltage reading should be
from 4.60 to 4.90 volts.
5.2. If the voltage is zero volts, check the continuity of the light green wire from the 16-pin connector at
the speed controller to the three-pin connector at the motor speed sensor. If the continuity is correct,
replace the speed controller.
5.3. If reading is below 3.50 volts, check the continuity of the wires and plug and replace the speed controller if
necessary.
2009 Electric Precedent Maintenance and Service Manual Page 11-31