Testing Relays with 4 Terminals (continued)
2. Disconnect the ground cable at the battery; refer to
(page 6–81)
.
3. Access the relay to be tested and disconnect the wire harness connector
from the relay. Remove the relay from the mounting bracket for testing.
g256779
Figure 104
Relay with 4 Terminals
Note:
Prior to taking small resistance readings with a digital multimeter, short
the meter test leads together. The meter will display a small resistance value
(usually 0.5 ohms or less). This resistance is due to the internal resistance of
the meter and test leads. Subtract this value from the measured value for
the tested component.
4. Using a multimeter (ohms setting), measure coil resistance between
terminals 85 and 86. Resistance should be between 70 and 100 ohms.
5. Verify infinite resistance (no continuity) exists between terminals 30 and 87.
6. Connect multimeter (ohms setting) leads to relay terminals 30 and 87.
Ground terminal 86 and apply +12 VDC to terminal 85. The relay should
make and break continuity between terminals 30 and 87 as +12 VDC is
applied and removed from terminal 85.
7. Replace the relay as necessary.
8. If the relay tests correctly and a circuit problem still exists, check the wire
harnesses; refer to
Appendix A (page A–1)
.
9. Connect the wire harness, install any items removed to access the relay, and
connect the battery ground cable.
Electrical System: Electrical Component Testing
Page 6–64
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: ......