Pinpoint Test A: The Ignition Switch Is Inoperative
WARNING: This page is about a different car, the 2006 Ford Pickup, 2006 Ford F550 Super Duty, 2006 Ford F450 Super Duty, and 2006 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
- A1 CHECK THE VOLTAGE TO THE IGNITION SWITCH
- Key in OFF position.
- Disconnect: Ignition Switch C250.
- Measure the voltage between ignition switch C250, harness side, and ground as follows:TERMINALS VOLTAGE CHART
Ignition Switch Circuit C250-7 37 (YE) C250-12 37 (YE) C250-2 325 (DB/OG) C250-9 1050 (LG/VT) - Are the voltages greater than 10 volts?
Yes : INSTALL a new ignition switch. REFER to IGNITION SWITCH . TEST the system for normal operation.
No : Verify that CJB fuse 103 (30A) is OK. If OK, REPAIR the circuit 1050 (LG/VT) for an open.
Verify that CJB fuse 116 (30A) is OK. If OK, REPAIR the circuit 325 (DB/OG) for an open.
Verify that CJB fuse 110 (30A) is OK. If OK, REPAIR the circuit 37 (YE) for an open.
TEST the system for normal operation.