Table 4-2. Unit Troubleshooting-continued -706880207

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

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).

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).

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