ORGANIZATIONAL TROUBLESHOOTING - CONTINUED
TEST OR INSPECTION
2. ENGINE CRANKS BUT FAILS TO START ABOVE 50°F (18°C) - CONTINUED.
Although KEY SWITCH must be on and battery ground cable connected to test electrical circuit
voltage, turn off KEY SWITCH and disconnect battery ground cable before doing resistance tests
or replacing parts. This will keep you from getting shocked and prevent damage to parts and
Do not crank engine for more than 20 seconds. Allow starter motor to cool for 2 minutes between
cranking attempts. Cranking too long can overheat and damage starter motor.
Check for 11 to 13 vdc at fuse panel (1) as follows: Set multimeter to 20 vdc scale. Connect red
test lead to input terminal (2) and black test lead to ground. Have assistant rotate KEY SWITCH
(3) clockwise to on position and press ENGINE START button (4) for 20 seconds. Check for 11
to 13 vdc on multimeter. Have assistant rotate KEY SWITCH (3) counterclockwise to off position.
Disconnect test leads.
If multimeter reads no voltage, go to step 24.
If multimeter reads 11 to 13 vdc, go to step 25.
Check 19E wire (5) from LOAD 3 terminal (6) on automatic override module (7) to fuse panel (1)
for broken conditions as follows: Disconnect batteries (page 2-424). Using 11/32-inch box-end
wrench, unscrew and take off nut (8) and 19E wire (5) from LOAD 3 terminal (6) and pull wire
connector (9) from fuse panel (1). Set multimeter to ohms scale and adjust to 0 ohms. Connect
red test lead to wire terminal (10) and black test lead to 19E wire (5) on wire connector (9). Check
for 0 ohms on multimeter. Disconnect test leads.
If multimeter reads no continuity, 19E wire (5) must be replaced. Notify Direct Support