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TM 5-4210-233-14&P-1
Table 4-2.
Unit Troubleshooting-Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
ELECTRICAL SYSTEM-CAB CONTROLS AND INDICATORS-Continued
2
FRONT ID LIGHTS, ID BULLETS (FRONT AND REAR), TAIL LIGHTS,
SIDE ID LAMPS DO NOT ILLUMINATE-Continued
Step 4.
Check for +12V at circuit breaker #16 on battery accessory buss.
Replace breaker (see para 4-99).
Step 5.
Check wiring for continuity.
Replace wire (see para 4-9.4).
3
STEP LIGHTS DO NOT ILLUMINATE
(Refer to Electrical Wiring Diagrams, Appendix H, Sheet 1 of 16.)
Step 1.
Check bulb.
Replace bulb (see para 4-14).
Step 2.
Check step light relay for proper operation.
Replace relay (see para 4-.94).
Step 3.
Check for +12V at circuit breaker #1 on battery accessory buss.
Replace breaker (see para 4-99).
Step 4.
Check for +12V at circuit breaker #7 on headlight buss.
Replace breaker (see para 4-99).
Step 5.
Check for +12V at headlight buss.
Refer to headlight troubleshooting procedure.
Step 6.
Check wiring for continuity.
Replace wire (see para 4-9.4).
4-78
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