TM 5-3805-291-23-1
TROUBLESHOOTING WITHOUT A DIAGNOSTIC CODE - CONTINUED
0008 00
Table 2. Electrical System Troubleshooting.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. Check 100 A alternator fuse (WP 0053
1. If blown, replace fuse (WP 0053 00).
1.
Alternator (Charging
00).
2. If fuse is ok, go to Test 2.
Problem).
1. If alternator drive belts are worn,
2. Inspect condition and tension of drive
damaged, or loose, replace belt or
belt and tensioner (WP 0048 00 and
tensioner.
2. If problem still exists, go to Test 3.
3. Inspect battery cables, wiring, and
1. Clean any corroded or dirty
connections in charging circuit. Refer
connections, tighten any loose
to Electrical System Schematic (WP
connections, and replace any faulty
wiring harnesses (WP 0195 00 thru WP
0201 00).
2. If problem still exists, go to Test 4.
4. Perform Battery Load Test (TM 9-
1. If batteries are damaged, defective, or
6140-200-14).
do not pass load test, replace batteries
(WP 0096 00).
2. If problem still exists, perform
Charging System Test (WP 0013 00).
1. If battery cables are corroded, remove
1. Inspect battery disconnect switch,
2.
Engine Will Not Crank.
and clean battery cables (WP 0097 00).
battery posts, and battery cables for
Tighten and clean any loose or
loose connections and corrosion.
corroded connections.
2. If problem still exists, go to Test 2.
2. Perform Battery Load Test (TM 9-
1. If batteries are damaged, defective, or
6140-200-14).
do not pass load test, replace batteries
(WP 0096 00).
2. If problem still exists, go to Test 3.
3. Ensure timing pin was not left in
If problem still exists, go to Test 4.
flywheel.
4. Check wiring to starting motor
1. If damaged, replace wiring harness in
solenoid. Refer to Electrical System
question (WP 0195 00 thru WP 0201
Schematic (WP 0236 00).
00).
2. If problem still exists, go to Test 5.
1. If damaged, replace starter or flywheel.
5. Inspect starter motor pinion (WP 0051
2. If problem still exists, go to Test 6.
00) and flywheel ring gear (WP 0177
00) for damage.
6. Perform Electrical Power Supply
If problem still exists, go to Test 7.
Circuit Test (WP 0013 00).