Air Conditioning On/Off Switch
POSITION
CLOSED
CIRCUITS
OFF
NONE
ON
1+ 2 + 3
Testing the Air Conditioning On/Off Switch
The air conditioning on/off switch, working with the AC switch signal relay, and
its circuit wiring can be tested as a T1: TEC input using the InfoCenter Display;
refer to
Using the InfoCenter Display for Troubleshooting (page 3–23)
. If testing
determines that the switch and its circuit wiring are not functioning correctly,
proceed with the following test procedure:
1. Park the machine on a level surface, lower any attachments and stop the
engine.
2. Disconnect the battery negative (-) cable at the battery.
3. Remove the roof from the cab.
4. Disconnect the wire harness connectors from the switch and remove the
switch from the AC control panel if necessary.
5. Use a multimeter (ohms setting) and the preceding table to determine
whether continuity exists between the various terminals for each switch
position.
6. Replace the switch if necessary.
7. If the switch tests correctly and a circuit problem still exists, check the wire
harnesses; refer to
Appendix A (page A–1)
.
8. Install the switch, connect the wire harness, inspect and repair the roof seals
as necessary, and install the roof after testing.
9. Connect the battery negative (-) cable at the battery.
Electrical System: Electrical Component Testing
Page 6–40
Outcross 9060
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: ......