2002 Ford Expedition

Tiny
DOWORK
  • MEMBER
  • 2002 FORD EXPEDITION
Electrical problem
2002 Ford Expedition V8 Two Wheel Drive Automatic

WHY DOES MY FORD EXPEDITION START IT SELF WHEN I CONNECT THE BATTERY?
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Sunday, February 1st, 2009 AT 3:03 PM

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Tiny
DAVE H
  • MEMBER
Check or replace the ignition switch !

IGNITION SWITCH
To inspect ignition switch for mechanical operation, rotate lock cylinder through all switch positions. If lock cylinder does not bind and returns from START to RUN position without assistance, go to next step. If binding occurs or switch does not return from START or RUN positions, lock cylinder and ignition switch should either be disassembled and inspected for damage, or ignition switch should be replaced.
To test electrical function of ignition switch, disconnect ignition switch harness connector. Check resistance between specified switch terminals. See Fig. 4. See IGNITION SWITCH CONTINUITY table. If resistance is not as specified, replace ignition switch.

IGNITION SWITCH CONTINUITY
Switch Position. Continuity Between Terminals
Start.B4 & STA; B5 & I1
Run.A1 & B1; A3 & B3;
. A4 & B4; B5 & I1
Accessory.A1 & B5
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Sunday, February 1st, 2009 AT 6:17 PM

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