Diode Assemblies
Multimeter
Red (+) Lead
Multimeter
Black (-) Lead
Resistance
DIODE
TERMINAL A
DIODE
TERMINAL B
VERY LOW
DIODE
TERMINAL B
DIODE
TERMINAL A
VERY HIGH
Five (5) different diodes are used on the Outcross 9060 machines. The
maximum current allowed through any of the diodes is 6 amps. The diodes can
be identified by their black color and diode symbol on the end of the diode body.
•
A diode assembly (D1) is used for circuit protection from voltage spikes that
occur when the starter solenoid is de−energized. The diode plugs into the
engine wire harness near the starter motor.
•
A diode assembly (D2) is used to protect the engine ECU from reverse
polarity in the EGR relay circuit. The diode plugs into the engine wire harness
near the Yanmar ECU.
•
A diode assembly (D3) is used for circuit protection from voltage spikes that
occur when the optional horn is energized. The diode plugs into the engine
wire harness near the Yanmar ECU.
•
A diode assembly (D4) is used to control current flow between the hazard
switch and the turn signal switch of the optional International Road Light Kit –
right side lights. The diode plugs into the international road light wire harness
behind the main instrument panel.
•
A diode assembly (D5) is used to control current flow between the hazard
switch and the turn signal switch of the optional International Road Light Kit –
left side lights. The diode plugs into the international road light wire harness
behind the main instrument panel.
Testing the Diode Assemblies
1. Locate and remove the diode from the wire harness.
2. Use a multimeter to check for voltage drop across the diode terminals (diode
test setting). Contact the multimeter red (+) lead to diode terminal A and the
black (−) lead to diode terminal B. A reading of less than 0.7 volts should be
displayed on the multimeter.
OR
Use the table provided and a multimeter (ohms setting) to measure the
resistance across the diode terminals.
3. Replace the diode if necessary.
4. If the diode tests correctly and a circuit problem still exists, check the wire
harnesses; refer to
Appendix A (page A–1)
.
Outcross 9060
Page 6–69
Electrical System: Electrical Component Testing
18234SL Rev B
Summary of Contents for 07511AA
Page 4: ...Reader Comments Page 4 Outcross 9060 18234SL Rev B ...
Page 18: ...Safety Safety and Instructional Decals Page 1 10 Outcross 9060 18234SL Rev B ...
Page 38: ...Specifications and Maintenance Special Tools Page 2 20 Outcross 9060 18234SL Rev B ...
Page 96: ...Engine Service and Repairs Page 4 24 Outcross 9060 18234SL Rev B ...
Page 208: ...Hydraulic System Service and Repairs Page 5 112 Outcross 9060 18234SL Rev B ...
Page 294: ...Electrical System Service and Repairs Page 6 86 Outcross 9060 18234SL Rev B ...
Page 384: ......