TM 5-2420-231-23-1
0036
Table 1. Driving Lights Do Not Function Correctly - Continued.
036
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
3. Using a digital multimeter, mea-
Resistance 5.0 Ohms or Less -
Driving Lights Do Not
Proceed to Test Step 5.
sure resistance between terminals
Function Correctly -
of driving lights fuse. Resistance
Resistance Greater Than 5.0 Ohms -
Continued
Replace driving lights fuse (TM 5-2420-
should be 5.0 ohms or less.
231-10).
Proceed to Test Step 12.
Test Step 5. Check for Open Circuit
from Drive Lights Relay.
1. Disconnect left driving light
(WP 0007, Figure 55) from front
lights wiring harness connector
(WP 0007, Figure 54).
2. Install a jumper wire between front
lights wiring harness connector
(WP 0007, Figure 54) terminals 3
and 4.
3. Remove instrument panel front
cover (WP 0174).
4. Remove drive lights relay (WP
0007, Figure 69) from front con-
sole wiring harness connector (WP
0007, Figure 68).
5. Using a digital multimeter, mea-
Resistance 5.0 Ohms or Less -
sure resistance between front con-
Proceed to Test Step 9.
sole wiring harness connector (WP
Resistance Greater Than 5.0 Ohms -
0007, Figure 68) terminals 87 and
Proceed to Test Step 6.
86. Resistance should be 5.0
ohms or less.
Test Step 6. Check for Faulty Turn
Signal, Driving Lights, and Horn
Switch.
1. Disconnect turn signal, driving
lights, and horn switch (WP 0007,
Figure 67) from front console wir-
ing harness connector (WP 0007,
Figure 66).
2. Ensure driving lamp lever is in the
forward position (TM 5-2420-231-
10) to turn driving lamps on.
3. Using a digital multimeter, mea-
Resistance 5.0 Ohms or Less -
sure resistance between turn sig-
Proceed to Test Step 7.
nal, driving lights, and horn switch
Resistance Greater Than 5.0 Ohms -
(WP 0007, Figure 67) terminals 56
Replace turn signal, driving lights, and
and 56a. Resistance should be 5.0
horn switch (WP 0175).
ohms or less.
Proceed to Test Step 15.
0036-4
