TM-9-2320-272-24-1

TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)

TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL; VOLUME 1 OF 4

JUNE 1998

TM-9-2320-272-24-1 - Page 250 of 1015

TM 9-2320-272-24-1

Table

2-3. Electrical Troubleshooting (Contd).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

Step 6.

Place battery switch to OFF position.

Step 7.

Connect lead 10 and disconnect lead 37 from circuit breaker.

Step 8.

Place battery switch to ON position.

Step 9.

Connect multimeter negative lead to vehicle chassis ground and positive lead to

lead 37 terminal of circuit breaker. Multimeter should indicate battery voltage.

If battery voltage is not indicated, replace defective circuit breaker (para. 3-105).

END OF TESTING!

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