1998 Expedition/Navigator Workshop Manual
NGS
C2 RETRIEVE THE DIAGNOSTIC TROUBLE CODES (DTCS)
Retrieve Continuous DTCs
Clear Continuous DTCs
Retrieve On-Demand DTCs
http://www.fordtechservice.dealerconnection.com/pubs/content/~WSWJ/~MUS~LEN/21/...
Monitor the PID IGN_GEM while turning the ignition switch through the START, RUN, OFF, and ACC positions.
Do the PID values agree with the ignition switch positions?
Yes
GO to C2.
No
REPAIR the ignition circuit (RUN/ACC: circuit 297 [BK/LG], RUN: circuit 687 [GY/Y], START: circuit 32 [R/LB] or
circuit 481 [GY/Y]) in question. CLEAR the DTCs. TEST the system for normal operation.
Are any DTCs recorded?
Yes
If DTC B1342, REPLACE the GEM; REFER to
operation.
If DTC P0500, GO to
C19
.
If DTC P1483, GO to
C12
.
If DTC P1485, GO to
C12
.
If DTC P1804, REFER to
Section
413-01.
If DTC P1806, REFER to
Section
413-01.
If DTC P1808, REFER to
Section
413-01.
If DTC P1810, REFER to
Section
413-01.
If DTC P1812, GO to
C5
.
If DTC P1815, GO to
C5
.
If DTC P1820, GO to
Pinpoint Test
B.
If DTC P1822, GO to
Pinpoint Test
B.
If DTC P1824, GO to
Pinpoint Test
A.
If DTC P1826, GO to
Pinpoint Test
A.
If DTC P1828, GO to
Pinpoint Test
B.
If DTC P1830, GO to
Pinpoint Test
B.
If DTC P1832, GO to
Pinpoint Test
D.
If DTC P1834, GO to
Pinpoint Test
D.
If DTC P1836, GO to
Pinpoint Test
A.
If DTC P1837, GO to
Pinpoint Test
A.
If DTC P1846, GO to
C24
.
If DTC P1850, GO to
C24
.
If DTC P1854, GO to
C24
.
If DTC P1858, GO to
C24
.
If DTC P1868, REFER to
Section
413-01.
Section
419-10. CLEAR the DTCs. TEST the system for normal
Page 38 of 64
8/30/2010