Symptom Chart - Ford Expedition 1998 Workshop Manual

1998 Expedition/Navigator Workshop Manual
IGN_GEM 297 (BK/LG), 1040 (R/LB), 32 (R/LB), 687 (GY/Y) Ignition Switch States
IGN_KEY 158 (BK/PK)
INTLMP 402 (O/LG) Fuse Junction Panel (Internal)
LGATE_SW 700 (W/PK)
LRDR_SW 363 (BK/LB)
MTR_CCW 781 (O/LB)
MTR_CW 782 (BR/W)
NTRL_SW 463 (R/W)
P_DR_SW 345 (BK/PK)
PARK_SW 257 (W/R)
PLATE_A 771 (P/Y)
PLATE_B 770 (W)
PLATE_C 764 (BR/W)
PLATE_D 763 (O/W)
PLATEPW 762 (Y/W)
PWR_RLY 239 (W/O)
R_WP_DN 592 (T)
R_WP_MD 485 (PK/BK)
R_WP_PK 587 (P/Y)
R_WP_SW 488 (DG)
R_WP_UP 591 (LG)
RB_LMP 1008 (LG/O)
RRDR_SW 346 (BK/W)
SBLTLMP 450 (DG/LG)
SPEEDWP N/A
TRA_FSP 435 (Y/LB)
TRA_RSP 772 (LB)
VSS_GEM 676 (PK/O), 679 (GY/BK)
WASH_SW 686 (T/R)
WFL_LMP 82 (PK/Y)
WFLUID 81 (R/LG)
WPHISP 647 (GY/LB)
WPMODE 680 (LB/O), 684 (PK/Y)
WPPK_PK N/A
WPPRKSW 671 (LB)
WPRUN 646 (Y/W)
2WDSOL 145 (GY/BK)
4WD_LMP 994 (W)
4WDCLST 976 (O)
4WDHIGH 777 (Y)
4WDLOW 778 (O)
4WDSGEM 780 (DB)
4WDSOL 605 (R)

Symptom Chart

Symptom Chart
Condition
The A4WD Indicator Flashes When the A4WD Mode Is Selected
The Vehicle Does Not Shift Between 2WD/A4WD and 4WD Modes Properly
The Vehicle Does Not Shift Between 4WD HIGH and 4WD LOW Modes
Properly
The Front Axle Is Not Engaging Properly (Transfer Case Motor Movement
OK)
http://www.fordtechservice.dealerconnection.com/pubs/content/~WSWJ/~MUS~LEN/21/...
Ignition Key-In/Out
Interior Lamp Relay Circuit
Liftgate/Glass Switch Status
LR Door Open Warning Lamp Switch
HI to LO Shift Relay Coil Status
LO to HI Shift Relay Coil Status
Transmission Range Sensor Input
RH Door Open Warning Lamp Switch
Headlamp Control Input Switch
Transfer Case Contact Plate Switch A
Transfer Case Contact Plate Switch B
Transfer Case Contact Plate Switch C
Transfer Case Contact Plate Switch D
Contact Plate Ground Output
ABS Active Input (A4WD Only)
Rear Wiper DOWN Relay Status
Rear Wiper Mode Switch Status
Rear Wiper Park Sense
Rear Washer Relay Output
Rear Wiper UP Relay Status
Running Board Lamp Output Status
RR Door Open Warning Lamp Switch
Safety Belt Warning Indicator
Speed Dependent Wiper Function
Front Shaft Speed
Rear Shaft Speed
Vehicle Speed Sensor
Front Washer Relay Output
Low Washer Fluid Warning Indicator Circuit
Low Washer Fluid Switch
Front Wiper HI/LO Relay Status
Front Wiper/Washer Switch Status
Front Wiper Park to Park Time
Front Wiper Motor Switch Status
Front Windshield Wiper Run/Park Relay Status ON---, OFF---, ON- B-, OFFO-G
2WD Solenoid Status
A4WD Indicator Status
Four Wheel Drive Clutch Relay Control
4WD High Indicator Status
4WD Low Indicator Status
4WD Mode
4WD Solenoid Status
Possible Sources
A4WD clutch relay/circuit.
Hall effect speed sensors/circuits.
Transfer case electric clutch.
4WABS module/circuit.
GEM.
A4WD mode switch/circuit.
A4WD clutch relay/circuit.
Contact plate sensors A, B, C and/or D
circuits.
Transfer case shift motor/circuit.
Transfer case shift relays.
Transfer case mechanism.
GEM.
A4WD mode switch/circuit.
VSS.
BPP switch.
Transfer case shift relays.
Transfer case mechanism.
Transmission range sensor.
GEM.
Digital transmission range (DTR) sensor.
4x4 solenoid/circuit.
4x2 solenoid/circuit.
Vacuum motor.
Vacuum lines.
Front differential mechanism.
START, RUN, OFF, ACC
IN, OUT
ON---, OFF---, ON-B-, ON O-G
AJAR, CLOSED
AJAR, CLOSED
ON---, OFF---, ON-B-, OFFO-G
ON---, OFF---, ON-B-, OFFO-G
NTRL, not NTRL
AJAR, CLOSED
ON - OFF
OPEN, CLOSED
OPEN, CLOSED
OPEN, CLOSED
OPEN, CLOSED
ON---, OFF---, ON-B-, OFFO-G
ON, OFF
ON---, OFF---, ON-B-, OFF O-G
LOW, HIGH, WASH, OFF
PARK, notPRK
ON---, OFF---, ON-B-, OFFO-G
ON---,OFF---, ON-B-, OFFO-G
OFF---, ON---, OFFO-G, ON-B-
AJAR, CLOSED
ON ---, OFF ---, ON-B-, OFFO-G
ACTIVE, notACT
0-225 KPH
0-255 KPH
0-255 KPH
ON---, OFF---, ON-B-, OFFO-G
ON---, OFF---, ON-B-, OFFO-G
LOW, OK
ON---, OFF---, ON-B-, OFFO-G
WASH, OPEN, INVLD, OFF, INTVL1-7, LOW, HIGH
0 to 65 seconds
PARKED, not PRK
ON---, OFF---, ON-B-, OFFO-G
ON---, OFF---, ON-B-, OFFO-G
ON---, OFF---, ON-B-, OFFO-G
ON---, OFF---, ON-B-, OFFO-G
ON---, OFF---, ON-B-, OFFO-G
INVLD, A42D, 2WD, 4WDLOW, 4WDHIGH, OFFO-G
ON---, OFF---, ON-B-, OFFO-G
Action
GO to Pinpoint Test
A.
GO to Pinpoint Test
B.
GO to Pinpoint Test
C.
GO to Pinpoint Test
D.
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8/30/2010