1998 Expedition/Navigator Workshop Manual
Fuse Junction Panel C243
E4 CHECK GEM C239-26 CIRCUIT 875 (BK/LB) FOR CONTINUITY TO GROUND
E5 CHECK GEM C239-14 CIRCUIT 875 (BK/LB) FOR CONTINUITY TO GROUND
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Measure the voltage between fused junction panel terminal 4 and ground, and between fused junction panel
terminal 16, and ground.
Are the voltages greater than 10 volts?
Yes
GO to E4.
No
REPLACE the fuse junction panel. CLEAR the DTCs. TEST the system for normal operation.
Measure the resistance between GEM C239-26 circuit 875 (BK/LB), and ground.
Is the resistance less than 5 ohms?
Yes
GO to E5.
No
REPAIR circuit 875 (BK/LB). CLEAR the DTCs. TEST the system for normal operation.
Measure the resistance between GEM C239-14, circuit 875 (BK/LB), and ground.
Is the resistance less than 5 ohms?
Yes
REFER to
Section
418-00.
No
REPAIR circuit 875 (BK/LB). CLEAR the DTCs. TEST the system for normal operation.
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8/30/2010