Pinpoint Test D: No Power In Start
WARNING: This page is about a different car, the 2008 Ford RV Cutaway, 2008 Ford Econoline, 2008 Ford E450 Super Duty, and 2008 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
- D1 CHECK THE IGNITION SWITCH
- Carry out the Ignition Switch - Electrical .
- Does the ignition switch test OK?
- YES : Go to D2.
- NO : INSTALL a new ignition switch. REFER to Ignition Switch . TEST the system for normal operation.
- D2 CHECK CIRCUITS 33 (WH/PK) AND 1499 (PK/LG) FOR AN OPEN
- Key in OFF position.
- Disconnect: CJB Fuse 8 (15A)
- Disconnect: CJB Fuse 33 (10A)
- Measure the resistance between:
- ignition switch C250-5, circuit 1499 (PK/LG), harness side and CJB fuse 8 (30A) cavity, circuit 1499 (PK/LG), input side.
- ignition switch C250-3, circuit 33 (WH/PK), harness side and CJB fuse 33 (10A) cavity, circuit 33 (WH/PK), input side.
- Are the resistances less than 5 ohms?
- YES : REFER to STARTING SYSTEM - GASOLINE ENGINES article or STARTING SYSTEM - DIESEL ENGINE article to diagnose the starting system.
- NO
: VERIFY CJB fuse 8 (30A) is OK. If OK, REPAIR circuit 1499 (PK/LG).
VERIFY CJB fuse 33 (10A) is OK. If OK, REPAIR circuit 33 (WH/PK).
TEST the system for normal operation.