TM 5-6675-331-14&P
Table 4-2. UNIT TROUBLESHOOTING
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
4-16. ECU DOES NOT WORK.
Check for 120v of voltage at ECU circuit breakers. Using a multimeter insert probe in terminals A and B.
If 120v is not present, check ECU circuit breaker for continuity. If no continuity, replace circuit breaker
(refer to paragraph 4-24). If 120v exists, refer to TM 5-4120-378-14.
4-17. TENT LIGHTS DO NOT WORK.
Check tent power receptacle for 120v.
If no voltage, check continuity of tent light circuit breaker. If continuity exists, replace receptacle (refer to
paragraph 4-26). If no continuity, replace circuit breaker (refer to paragraph 4-24).
4-18. NO POWER TO TENT EQUIPMENT.
WARNING
Use extreme caution when performing checks or maintenance at or near power entrance box and power
distribution box. Failure to do so may result in death or serious injury.
Check for 120v at tent receptacle.
If voltage does not exist, check continuity of appropriate circuit breaker. If 120v is present at circuit
breaker, replace tent power receptacle (refer to paragraph 4-26). If 120v is not present at circuit breaker,
replace circuit breaker (refer to paragraph 4-24).
4-10
