TM-9-2320-361-24-1

2-1/2 TON, 6X6, M44A2 SERIES TRUCKS

TECHNICAL MANUAL; FIELD AND SUSTAINMENT MAINTENANCE PART 1 OF 2

AUGUST 2006

TM-9-2320-361-24-1 - Page 238 of 1176

TM 9-2320-361-24-1

0014 00

0014 00-2

INDICATORS, GAUGES, AND WARNING SYSTEM TROUBLESHOOTING (Contd)

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

1. ALL GAUGES

INOPERATIVE

NOTE

If STE/ICE-R is available, perform

NG31 gauge test (WP 0018 00).

Test 1. Test starter for proper

operation.

1. Turn power accessory switch

to ON position.

2. Turn start button.

Test 2. If problem is still present, test

instrument cluster voltage.

1. Turn power accessory switch

to OFF position.

2. Remove instrument cluster

panel (WP 0093 00).

3. Verify battery ground cable is

connected (WP 0126 00).

4. Connect jumper wire from

instrument panel to good

frame ground.

5. Disconnect lead 27 from

temperature gauge.

6. Use multimeter or 24 volt test

lamp to check voltage on

contact end of lead 27 at

gauge.

7. Place positive lead on contact

end of lead 27.

8. Place negative lead on frame

ground.

9. If battery voltage is present,

go to WP 0014 00, table 1,

malfunction 2.

10. Set multimeter to RX 1 scale.

11. Check continuity of lead 27.

12. Disconnect lead 27 from front

wiring harness.

Verify that proper voltage is present.

1. If starter cranks engine, go to

test 2.

2. If starter does not crank engine go

to WP 0012 00, table 2,

malfunction 1 and troubleshoot

starter circuit.

If continuity is not present, repair or

replace lead 27 (WP 0090 00).

Table 1. Indicator, Gauges, and Warning System Troubleshooting.