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
2. Using digital multimeter, measure
Resistance Less Than 5.0 Ohms -
Do Not Operate in Low
for resistance between dimmer
Replace control switch panel harness
Beam - Continued
switch (WP 0009, Figure 300) ter-
(WP 0275).
minal 3 and terminal 2. Resis-
Install dimmer relay (WP 0009, Figure
tance should be less than
296) to dimmer relay socket (WP
5.0 ohms.
0009, Figure 297).
Connect the connector AZ-C1 (WP
0009, Figure 387) to left headlight and
install headlight assembly (WP 0197).
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).
Proceed to step 3.
Resistance 5.0 Ohms or Greater -
Replace dimmer switch (WP 0275).
Connect the control switch panel wir-
ing harness connector A-C1 (WP
0009, Figure 31) from cab upper wir-
ing harness connector R-C2 (WP
0009, Figure 32) (WP 0275).
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).
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).
Proceed to step 3.
0023-47