No
REPLACE the mode switch; REFER to
Section 308-07B
. CLEAR the DTCs. TEST the system
for normal operation.
A13
CHECK THE 4WD MODE SWITCH — 4L
Place the mode switch in the 4L position.
Measure the resistance between the mode switch terminals 2 and 3.
Is the resistance between 340 and 380 ohms?
Yes
GO to
A14
.
No
REPLACE the mode switch; REFER to
Section 308-07B
. CLEAR the DTCs. TEST the system
for normal operation.
A14
CHECK CIRCUIT 780 (DB) FOR OPEN
GEM C241
Measure the resistance between mode switch C230-3, circuit 780 (DB), and GEM C241-8,
circuit 780 (DB).
Is the resistance less than 5 ohms?
Yes
GO to
A15
.
No
REPAIR circuit 780 (DB). CLEAR the DTCs. TEST the system for normal operation.
A15
CHECK CIRCUIT 780 (DB) FOR SHORT TO GROUND
Measure the resistance between GEM C241-8, circuit 780 (DB), and ground.
Page 11 of 74
1998 F-150/250 Workshop Manual
1/11/2011
http://www.fordtechservice.dealerconnection.com/pubs/con...
