TROUBLESHOOTING AND ELECTRICAL SYSTEM:
KEY-START WITH NEUTRAL REV GAS VEHICLE
Test Procedures
11
The reading should indicate an overload (no continuity). A diode is designed to conduct current in one direction
only. If a diode conducts current (shows continuity) with the meter probes as described, the diode has failed
and must be replaced.
See Diode Removal, Section 13, Page 13-15.
5.
Reverse the multimeter probes and note the reading. With the black (–) probe of the multimeter to the red lead of
the diode and the red (+) probe of the multimeter to the white lead, the meter should read approximately 450 mV,
however, a range of 400-500 mV is acceptable
.
6.
Connect either the black (–) or red (+) lead of the multimeter to the diode body (case). Connect the other
multimeter lead to both the red and white lead terminals of the diode. The multimeter should indicate an overload,
(no continuity). If continuity reading does occur, it indicates that one or both of the diode leads are grounded to
the diode body (case) and the diode must be replaced.
See Diode Removal, Section 13, Page 13-15.
7.
If the diode tests good, reconnect the diode leads.
See Diode Installation, Section 13, Page 13-15. See
also following WARNING.
WARNING
• Incorrect wiring could result in severe injury or death.
• Diode and solenoid connections must have correct polarity.
• Keep all persons clear of engine belts when making final connections.
5
7
6
2
1
3
8
9
10
11
12
13
14
B
A
A. Some wires omitted for clarity.
B. Viewed from inside driver side frame
8. Red wire from fuse block 9. Red wire from voltage regulator 10. Red wire from diode 11. White wire from diode 12. Red wire from battery 13.
White wire from starter/generator 14. Frame
Figure 11-16
Electrical Control Box and Diode Orientation
2007-2009 Turf 252, Carryall 252 and XRT 900 Maintenance and Service Manual
Page 11-19
