TM 5-3805-293-23-2
0023
Table 1. Cab Electrical Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
4. One or Both Headlights
3. Using digital multimeter, measure
Continuity - Replace front lighting
Do Not Operate in High
for continuity between front light-
wiring harness (WP 0196).
Beam - Continued
ing wiring harness connector A-
Connect cab lower wiring harness
C3 (WP 0009, Figure 292) termi-
connector P-C4 (WP 0009, Figure 45)
nal 4 and connector A-C4 (WP
to dash wiring harness connector PF-
0009, Figure 394) terminal 2.
C1 (WP 0009, Figure 44) (WP 0276).
There should be no continuity.
Connect the front work light wiring
harness connector CL-C18 (WP 0009,
Figure 294) to cab lower wiring har-
ness connector P-C61 (WP 0009, Fig-
ure 295) (WP 0183).
Install dimmer relay (WP 0009, Figure
296) to dimmer relay socket (WP
0009, Figure 297).
Connect the connector AZ-C1 (WP
0009, Figure 387) to left headlight and
install headlight assembly (WP 0197).
Proceed to step 4.
No Continuity - Replace front work
light wiring harness (WP 0183).
Connect cab lower wiring harness
connector P-C4 (WP 0009, Figure 45)
to dash wiring harness connector PF-
C1 (WP 0009, Figure 44) (WP 0276).
Install dimmer relay (WP 0009, Figure
296) to dimmer relay socket (WP
0009, Figure 297).
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 High Beam - Repeat trou-
switch to high beam (TM 5-3805-
bleshooting from the beginning.
293-10) and verify headlights
Both Headlights Operate in High
operate in high beam.
Beam - Troubleshooting complete.
0023-32
