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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
38
CAB PANEL FUEL GAUGE DOES NOT OPERATE
(Refer to Electrical Wiring Diagrams, Appendix H, Sheet 2 of 16.)
Step 1.
Check sender.
Replace sender (see para 4-168).
Step 2.
Check gauge.
Replace gauge (see para 4-93).
Step 3.
Check for +12V at circuit breaker #1 on ignition accessory buss.
Replace breaker (see para 4-99).
Step 4.
Check wiring for continuity.
Replace wire (see para 4-9.4).
39
INSTRUMENT PANEL GAUGE AND BACKLIGHTING DOES NOT ILLUMINATE
Refer to Electrical Wiring Diagrams, Appendix H, Sheet 2 of 16.)
Step 1.
Check bulb.
Replace bulb (see para 4-95).
Step 2.
Check dimmer control.
Replace dimmer control (see para 4-94).
Step 3.
Check for +12V at headlight buss.
Refer to "headlights (high or low beam) do not illuminate" troubleshooting procedure.
Step 4.
Check for +12V at circuit breaker #8 at headlight buss.
Replace breaker (see para 4-99).
Step 5.
Check wiring for continuity.
Replace wire (see para 4-9.4).
4-96
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