Table 2. Starting System Troubleshooting Procedure.

TM 9-2320-361-24-1

0012 00

BATTERY AND CHARGING SYSTEM TROUBLESHOOTING (Contd)

Table 2. Starting System Troubleshooting Procedure.

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

NOTE

1. STARTER WILL NOT

CRANK

Ensure transmission is in neutral.

Check batteries and cables. (See

WP 0012 00, table 1, malfunction 1,

step 1.)

Test 1. Test for battery voltage at pin

1 of starter solenoid with

power accessory switch turned

to ON position.

1. If a thump sound is heard, go to

1. Turn start switch and listen

step 2.

for starter solenoid with

power accessory switch turned 2. If thump sound is not heard, go to

to ON position.

step 3.

3. Check for seized engine. Refer to

WP 0006 00, table 1, malfunction 1,

step 3.

2. Check lead 6 at starter

1. If voltage is present but less than

solenoid for battery voltage.

19 VDC, check for corrosion and/or

loose connections.

2. If no voltage is present and engine

still fails to start, go to step 3.

3. Check lead 214 for battery

1. If voltage is not present, go to

voltage at pin 1 of starter

test 2.

solenoid.

2. If voltage is present and solenoid

does not engage starter motor,

proceed to step 4.

4. Set multimeter to RX 1 scale. 1. If continuity is greater than 1 ohm,

Check continuity between pin

remove starter solenoid and starter

4 of starter solenoid and

motor ground cables (WP 0088 00).

frame ground.

Repair or replace cables

(WP 0126 00 and WP 0090 00) that

have resistance greater than

1 ohm. Clean cable ends. Clean

connections on starter motor and

frame ground. Reconnect ground

cables and ensure all connections

are tight. Repeat test 1, step 1.

2. If continuity is greater than 1 ohm,

starter solenoid is defective.

Replace starter motor

(WP 0088 00).

If voltage is not present, clean and

5. Check battery cables for

tighten cable connections

voltage drop (WP 0012 00,

table 2, malfunction 2, tests 4 (WP 0126 00).

through 7).

0012 00-6