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
4. Using digital multimeter, measure
Resistance Less Than 5.0 Ohms -
Do Not Operate in Low
for resistance between front light-
Replace front work light wiring har-
Beam - Continued
ing wiring harness connector A-
ness (WP 0183).
C3 (WP 0009, Figure 292) termi-
Remove jumper wire between AA-C2
nal 4 and connector A-C4 (WP
(WP 0009, Figure 291) terminals 6
0009, Figure 394) terminal 2
and 2.
(Gnd). Resistance should be less
Connect the connector AA-C2 (WP
than 5.0 ohms.
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 5.
Resistance 5.0 Ohms or Greater -
Replace front lighting wiring harness
(WP 0196).
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).
Connect the connector AZ-C1 (WP
0009, Figure 387) to left headlight and
install headlight assembly (WP 0197).
Proceed to step 5.
5. 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 8. Check for Shorted Cab
Lower Wiring Harness.
1. Turn battery disconnect switch to
the OFF position.
0023-40