TM 5-3805-293-23-2
0023
Table 1. Cab Electrical Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
5. One or Both Headlights
3. Using digital multimeter, measure
Continuity - Replace front lighting
Do Not Operate in Low
for continuity between front light-
wiring harness (WP 0196).
Beam - Continued
ing wiring harness connector A-
Connect the connector AZ-C1 (WP
C3 (WP 0009, Figure 292) termi-
0009, Figure 387) to left headlight and
nal 4 and connector A-C4 (WP
install headlight assembly (WP 0197).
0009, Figure 394) terminal 2.
Connect the front work light wiring
There should be no continuity.
harness connector CL-C18 (WP 0009,
Figure 294) to cab lower wiring har-
ness connector P-C61 (WP 0009, Fig-
ure 295) (WP 0183).
Proceed to step 4.
No Continuity - Replace front work
light wiring harness (WP 0183).
Connect the connector AA-C2 (WP
0009, Figure 291) to right headlight.
Connect the connector AZ-C1 (WP
0009, Figure 387) to left headlight and
install headlight assembly (WP 0197).
Proceed to step 4.
4. Turn control indicator switch to
Headlight or Headlights Do Not
position SER. DRIVE, dimmer
Operate in Low Beam - Repeat trou-
switch to low beam (TM 5-3805-
bleshooting from the beginning.
293-10) and verify headlights
Both Headlights Operate in Low
operate in low beam.
Beam - Troubleshooting complete.
Test Step 7. Check for Open Front
Lighting Wiring Harness.
1. Connect jumper wire between
AA-C2 (WP 0009, Figure 291) ter-
minals 6 and 2.
2. Disconnect the front work light
wiring harness connector CL-C26
(WP 0009, Figure 293) from front
lighting wiring harness connector
A-C3 (WP 0009, Figure 292) (WP
0196).
3. Disconnect the front work light
wiring harness connector CL-C24
(WP 0009, Figure 393) from front
lighting wiring harness connector
A-C4 (WP 0009, Figure 394) (WP
0196).
0023-39
