C18 Check The Dtr Sensor; C19 Monitor The Vss Pid Vss_Gem; C20 Check Circuit 676 (Pk/O) For Open - Ford Expedition 1998 Workshop Manual

1998 Expedition/Navigator Workshop Manual

C18 CHECK THE DTR SENSOR

C19 MONITOR THE VSS PID VSS_GEM

C20 CHECK CIRCUIT 676 (PK/O) FOR OPEN

VSS C186
Fuse Junction Panel C242
http://www.fordtechservice.dealerconnection.com/pubs/content/~WSWJ/~MUS~LEN/21/...
No
REPAIR circuit 463 (R/W). CLEAR the DTCs. TEST the system for normal operation.
Monitor the PID NTRL_SW.
Verify that the PID NTRL_SW indicates NOT NTRL.
Connect a jumper wire between DTR sensor C182-7, circuit 57 (BK), and C182-8, circuit 463 (R/W).
Does the PID NTRL_SW indicate NTRL?
Yes
REPLACE the DTR sensor (4.6L refer to Section
TEST the system for normal operation.
No
REPAIR circuit 463 (R/W). CLEAR the DTCs. If problem is not found with the circuit, then REPLACE the GEM;
REFER to Section 419-10. CLEAR the DTCs. TEST the system for normal operation.
Monitor the PID VSS_GEM.
Drive the vehicle 0 to 88.5 km/h (55 mph).
Does the PID VSS_GEM agree with the speedometer?
Yes
GO to C24.
No
GO to C20.
Measure the resistance between VSS C186, circuit 676 (PK/O), and fuse junction panel C242-9, circuit 676
(PK/O).
Is the resistance less than 5 ohms?
Yes
GO to C21.
307-01A; 5.4L refer to Section 307-01B). CLEAR the DTCs.
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8/30/2010