Ford 2003 Mustang Workshop Manual page 821

SECTION 211-05: Steering Column Switches
DIAGNOSIS AND TESTING
Steering Column Switches
Refer to Wiring Diagrams Cell
Refer to Wiring Diagrams Cell
Refer to Wiring Diagrams Cell
Refer to Wiring Diagrams Cell
Special Tool(s)
Worldwide Diagnostic System
(WDS)
418-F224,
New Generation STAR (NGS)
Tester
418-F052, or equivalent scan
tool
73 Digital Multimeter
105-R0051 or equivalent
Inspection and Verification
1. Verify the customer concern by operating the multifunction or ignition switch.
2. Visually inspect for obvious signs of mechanical and electrical damage.
Visual Inspection Chart
Mechanical
Ignition key
Ignition switch
Multifunction switch
Turn signal switch
Hazard/flasher switch
3. If the concern remains after the inspection, connect the scan tool to the data link connector
(DLC) located beneath the instrument panel and select the vehicle to be tested from the scan
tool menu. If the scan tool does not communicate with the vehicle:
check that the program card is correctly installed.
13 , Power Distribution for schematic and connector information.
81 , Interval Wiper/Washer for schematic and connector information.
85 , Headlamps for schematic and connector information.
90 , Turn/Stop/Hazard Lamps for schematic and connector information.
Electrical
Battery junction box (BJB) Fuses:
(3) IGN (40A)
Central junction box (CJB) Fuses:
6 (25A)
39 (5A)
Damaged wiring harness
Loose or corroded connections
2003 Mustang Workshop Manual