Ford 2003 Mustang Workshop Manual page 3453

SECTION 417-01: Exterior Lighting
DIAGNOSIS AND TESTING
Stoplamps
Refer to Wiring Diagrams Cell
Special Tool(s)
73III Automotive Meter or
equivalent
105-R0057
Inspection and Verification
1. Verify the customer concerns.
2. Visually inspect for the following obvious signs of mechanical or electrical damage.
Visual Inspection Chart
Brake pedal position (BPP) switch
3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible)
before proceeding to the next step.
4. If the concern is not visually evident, determine the symptom and refer to the Symptom Chart.
Symptom Chart
Symptom Chart
Condition
The stoplamps are
inoperative
One or more stoplamps
are inoperative
The stoplamps are on
continuously
90 , Turn/Stop/Hazard Lamps for schematic and connector information.
Mechanical
Possible Sources
Central junction box (CJB)
fuse 41 (15A).
Circuitry.
Brake pedal position
(BPP) switch.
Circuitry.
Multifunction switch.
Brake pedal position
(BPP) switch.
Multifunction switch.
2003 Mustang Workshop Manual
Electrical
Central junction box (CJB) fuse 41 (15A)
Circuitry
Bulb(s)
Action
Go To Pinpoint
Test G
Go To Pinpoint
Test H
Go To Pinpoint
Test I
.
.
.