TM-9-2320-260-20

TRUCK, 5-TON, 6X6, M809 SERIES (DIESEL)

TECHNICAL MANUAL; UNIT MAINTENANCE

APRIL 1995

TM-9-2320-260-20 - Page 233 of 1337

TM 9-2320-260-20

Table 2-4. Electrical Troubleshooting (Contd).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

Test 7. Test wiring harness and circuit breakers.

Step 1.

Step 2.

Step 3.

Step 4.

Step 5.

Step 6.

Step 7.

Step 8.

Step 9.

Step 10.

Step 11.

Step 12.

Step 13.

Step 14.

Step 15.

Position battery switch to ON position.

Position ignition switch to RUN position.

Set multimeter to a range that will measure 24 volts.

Disconnect lead 10 from circuit breaker at lead 37.

Touch positive lead of multimeter to contact end of lead 10.

Touch negative lead of multimeter to frame ground. Voltage should be present.

a. If voltage is present, go to step 7.

b. Repair or replace lead if voltage is not present (para. 4-52 or 4-53).

Install lead 10 into circuit breaker.

Disconnect lead 37 from circuit breaker.

Touch positive lead of multimeter to contact end of circuit breaker.

Touch negative lead of multimeter to frame ground. Voltage should

a. If voltage is present, go to step 11.

be present.

b. Replace circuit breaker if voltage is not present (para. 4-52 or 4-53).

Install lead 37 into circuit breaker.

Disconnect lead 37 from connector.

Touch positive lead of multimeter to contact end of lead 37.

Touch negative lead of multimeter to frame ground. Voltage should be present.

a. If voltage is present, go to step 15.

b. Repair or replace lead if voltage is not present (para. 4-52 or 4-53).

Install lead 37 into connector.

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