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
2. Using digital multimeter, measure
Continuity - Proceed to Test Step 18.
Do Not Operate in High
for continuity between front work
No Continuity - Replace cab lower
Beam - Continued
light wiring harness connector CL-
wiring harness (WP 0266).
C18 (WP 0009, Figure 294) termi-
Connect cab lower wiring harness
nal 4 and 8. There should be no
connector P-C4 (WP 0009, Figure 45)
continuity.
to dash wiring harness connector PF-
C1 (WP 0009, Figure 44) (WP 0276).
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 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 3.
3. 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.
Test Step 18. Check for Shorted
Front Lighting Wiring Harness.
1. 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).
2. 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).
0023-31