TM 5-2420-231-23-1
0036
Table 1. Driving Lights Do Not Function Correctly - Continued.
036
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Test Step 10. Check for Faulty Drive
Driving Lights Do Not
Lights Relay.
Function Correctly -
Continued
1. Disconnect front console wiring
harness connector (WP 0007, Fig-
ure 71) from light control switch
(WP 0007, Figure 72).
2. Using a digital multimeter, mea-
Resistance 5.0 Ohms or Less -
sure resistance between front con-
Replace drive lights relay (WP 0007,
sole wiring harness connector (WP
Figure 69).
0007, Figure 71) terminal H and
Proceed to Test Step 15.
front console wiring harness con-
Resistance Greater Than 5.0 Ohms -
nector (WP 0007, Figure 68) termi-
Proceed to Test Step 11.
nal 85. Resistance should be 5.0
ohms or less.
Test Step 11. Check for Faulty Light
Control Switch.
Using a digital multimeter, measure
Resistance 5.0 Ohms or Less -
resistance between light control switch
Replace front console wiring harness
(WP 0007, Figure 72) terminals F and
(WP 0162).
H. Resistance should be 5.0 ohms or
Proceed to Test Step 15.
less.
Resistance Greater Than 5.0 Ohms -
Replace light control switch (WP 0175).
Proceed to Test Step 15.
Test Step 12. Test Driving Lights
Fuse Replacement.
1. Connect batteries (WP 0157) and
turn ignition switch to the on posi-
tion (TM 5-2420-231-10).
NOTE
Ensure that the light control switch is in the SER. DRIVE position and the
driving lamp lever is forward (TM 5-2420-231-10).
2. Observe driving lights (TM 5-2420- Both Driving Lights Off - Proceed to
231-10).
step 3.
Both Driving Lights On -
Troubleshooting complete.
3. Turn ignition switch to the off posi-
tion (TM 5-2420-231-10) and dis-
connect batteries (WP 0157).
4. Remove driving lights fuse (TM 5-
2420-231-10).
5. Using a digital multimeter, mea-
Resistance 5.0 Ohms or Less -
sure resistance between terminals
Proceed to Test Step 13.
of driving lights fuse. Resistance
Resistance Greater Than 5.0 Ohms -
should be 5.0 ohms or less.
Replace driving lights fuse (TM 5-2420-
231-10).
Proceed to Test Step 13.
0036-6