
TROUBLESHOOTING AND ELECTRICAL SYSTEM
Test Procedures
Page 11-42
2005 FE350 Gasoline Vehicle Maintenance and Service Supplement
11
TEST PROCEDURE 31 – BATTERY VOLTAGE SUPPLY
See General Warning, Section 10, Page 10-1.
1. Disconnect the battery cables as instructed.
See WARNING “To avoid unintentionally starting...” in
General Warning, Section 10, Page 10-1.
2. Remove the center dash assembly.
See Key Switch Removal, Section 12, Page 12-13.
3. Connect battery cables, positive (+) cable first, and tighten hardware to 12 ft-lb (16 N·m).
4. Place an alligator clip on the black (–) probe of the multimeter and connect the alligator clip to the terminal
block located on the frame under the front body
(Figure 11-45, Page 11-42)
.
5. Remove the fuse located at the yellow wire position in the fuse block.
6. Place the red (+) probe of the multimeter on the terminal connector inside the fuse block across from the
yellow wire connector.
NOTE:
Make sure the red probe is placed on the same side (hot side) as the 10-gauge red wire.
7. Set the multimeter to 20 volts DC. The reading should be at least 12.4 volts.
8. If the there is no voltage reading, check continuity of the 10-gauge red wire from the fuse block to the
solenoid. Check continuity of the 10-gauge black wire from the terminal block to the frame ground.
Figure 11-44 Starter/Generator and Neutral Lockout
Circuits Relay Test
Figure 11-45 Battery Voltage Supply Test
COIL
CO
IL
N
O
N
C
COIL
CO
IL
NO
N
C
WHITE /
BLACK
BROWN
BROWN
ORANGE
BLACK
BLACK
GREEN
RELAY TEST
2m
20
m
200
m
2k
200
200
200
200
20
2
200
m
500
20k
200k
2000
k
1000
OFF
WAVETEK
5XL
V
V
V
A
!
!
COM
200nA
MAX
1000 ---
750V
FUSED
200 OHM
SETTING
ELECTRICAL
COMPONENT BOX
20-AMP
FUSE
GROUND
TERMINAL
BLOCK
2m
20
m
200
m
2k
200
200
200
200
20
2
200
m
500
20k
200k
2000
k
1000
OFF
WAVETEK
5XL
V
V
V
A
!
!
COM
200nA
MAX
1000 ---
750V
FUSED
20 VDC
SETTING