
TROUBLESHOOTING AND ELECTRICAL SYSTEM
Test Procedures
Page 11-20
2005 FE350 Gasoline Vehicle Maintenance and Service Supplement
11
TEST PROCEDURE 5 – KEY SWITCH FOR KEY-START VEHICLES ONLY (ACCES-
SORY TERMINAL)
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. Ensure that wires are connected correctly and are tight. If they are not, rewire or tighten as necessary.
4. Insert the key and turn the switch to the ON position. With the multimeter set to 200 ohms, place the red
(+) probe of the multimeter on the (B) terminal and the black (–) probe on the (A) terminal of the key
switch
(Figure 11-15, Page 11-21)
. The reading should be continuity. If the reading is incorrect, replace
the key switch.
TEST PROCEDURE 6 – ACCELERATOR PEDAL LIMIT SWITCH
See General Warning, Section 10, Page 10-1.
The accelerator pedal limit switch (present on pedal-start vehicles only) is the top switch located in the elec-
trical component box. There is an 18-gauge green wire and an 18-gauge orange wire connected to this limit
switch.
1. Disconnect the battery cables as instructed.
See WARNING “To avoid unintentionally starting...” in
General Warning, Section 10, Page 10-1.
2. Check for proper wiring and tight connections.
See Wiring Diagrams beginning on page 11-6.
3. Set the multimeter to 200 ohms. Place the red (+) probe on the common (COM) terminal (green wire) of
the limit switch and place the black (–) probe on the normally closed (NC) terminal (orange wire) of the
limit switch.
Figure 11-13 Key Switch Starter Circuit Test for
Pedal-Start Vehicles
Figure 11-14 Key Switch Starter Circuit Test for
Key-Start Vehicles
1
–M
2
+M
RED
BLACK
BLACK
WHITE
WHITE /
BLACK
BLUE
YELLOW
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
B
–M
A
S
+M
BLUE
YELLOW
GREEN
BLACK
BLACK
WHITE/BLACK
RED
ORANGE/WHITE
OR BLUE
TO SOLENOID
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