Ford F150 Pickup. Instruction - part 9

2003 ACCESSORIES & BODY, CAB

Component Testing - F150 Pickup 

INTRODUCTION 

Component testing procedures are provided to determine whether a component is good or bad. 

Testing information for each component includes a schematic, a view of the terminal locations and step-by-step 
test procedures. Terminal locations are identified by numbers or letters that may be on the component or next to 
it. 

Fig. 1: Testing Terminal C1 (With mark Or Without Mark) 
Courtesy of FORD MOTOR CO. 

The component connector MUST BE REMOVED before testing. To test a single circuit within the component, 
select that circuit under the column "Circuit to test". If you wish to test the complete component, perform all 
tests. 

Connect the tester to the terminals shown in the second column and operate the component as shown in the third 
column. 

COMPONENT TESTING 

HEADLAMP SWITCH, EXTERIOR LAMPS 

 

2003 Ford Pickup F150 

2003 ACCESSORIES & BODY, CAB Component Testing - F150 Pickup

  

 

2003 Ford Pickup F150 

2003 ACCESSORIES & BODY, CAB Component Testing - F150 Pickup

  

Fig. 2: Testing Headlamp Switch, Exterior Lamps 
Courtesy of FORD MOTOR CO. 

HEADLAMP SWITCH, INTERIOR LAMPS 

Fig. 3: Testing Headlamp Switch, Interior Lamps 
Courtesy of FORD MOTOR CO. 

IGNITION SWITCH 

 

2003 Ford Pickup F150 

2003 ACCESSORIES & BODY, CAB Component Testing - F150 Pickup

  

Fig. 4: Testing Ignition Switch 
Courtesy of FORD MOTOR CO. 

MULTIFUNCTION SWITCH, WIPER/WASHER PORTION 

 

2003 Ford Pickup F150 

2003 ACCESSORIES & BODY, CAB Component Testing - F150 Pickup

  

Fig. 5: Testing Multifunction Switch, Wiper/Washer Portion (1 Of 3)
Courtesy of FORD MOTOR CO. 

Fig. 6: Testing Multifunction Switch, Wiper/Washer Portion (2 Of 3) 
Courtesy of FORD MOTOR CO. 

 

2003 Ford Pickup F150 

2003 ACCESSORIES & BODY, CAB Component Testing - F150 Pickup