2003 FORD MUSTANG light

DESCRIPTION AND OPERATION
Exterior Lighting
The exterior lighting system consists of the following components:
zheadlamps (13008)
z parking lamps
z rear lamps (13404)
z high mounted stoplamp
z license lamps
z front turn lamps
z reversing lamps
z fog lamps (if equipped)
z headlamp switch (11654)
z fog lamp switch (if equipped)
z brake pedal position (BPP) switch (13480)
z multifunction switch (13K359)
z digital transmission range (DTR) sensor (A/T)
z reversing lamp switch (M/T)
z electronic flasher
z fog lamp relays (if equipped)
SECTION 417-
01: Exterior Lighting 2003 Mustang Workshop Manual Klj . 1 ba
12003 Mustang Workshop Manual
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DIAGNOSIS AND TESTING
Headlamps
Refer to Wiring Diagrams Cell
85 , Headlamps for schematic and connector information.
Inspection and Verification 1. Verify the customer concern by operating the headlamps.
2. Visually inspect for the following obvious signs of mechanical and electrical damage.
3. If the concern is not visually evident, determine the symptom and proceed to Symptom Chart.
Symptom Chart SECTION 417-
01: Exterior Lighting 2003 Mustang Workshop Manual Special Tool(s)
73III Automotive Meter or
equivalent
105-
R0057
Visual Inspection Chart Mechanical Electrical
z
Damaged headlamp switch (11654)
z Damaged multifunction switch (13K359) z
Battery junction box (BJB) fuse 2 (30A)
z Central junction box (CJB) fuse(s):
„38 (20A)
„ 4 (7.5A) (RH)
„ 10 (7.5A) (LH)
z Damaged wiring harness
z Loose or corroded connections
z Headlamp bulb
Symptom Chart Condition
Possible Sources Action
z Both
headlamps are
inoperative z
Battery junction
box (BJB) fuse 2
(30A).
z Headlamp
switch.
z Circuitry.
z Multifunction
switch. z
Go To Pinpoint Test A .
z The low beams
are inoperative z
Circuitry.
z Multifunction
switch. z
Go To Pinpoint Test B . Klj . 1 ba
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DIAGNOSIS AND TESTING
Stoplamps
Refer to Wiring Diagrams Cell
90 , Turn/Stop/Hazard Lamps for schematic and connector information.
Inspection and Verification 1. Verify the customer concerns.
2. Visually inspect for the following obvious signs of mechanical or electrical damage.
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 SECTION 417-
01: Exterior Lighting 2003 Mustang Workshop Manual Special Tool(s)
73III Automotive Meter or
equivalent
105-
R0057
Visual Inspection Chart Mechanical Electrical
z
Brake pedal position (BPP) switch z
Central junction box (CJB) fuse 41 (15A)
z Circuitry
z Bulb(s)
Symptom Chart Condition
Possible Sources Action
z The stoplamps are
inoperative z
Central junction box (CJB)
fuse 41 (15A).
z Circuitry.
z Brake pedal position
(BPP) switch. z
Go To Pinpoint Test G .
z One or more stoplamps
are inoperative z
Circuitry.
z Multifunction switch. z
Go To Pinpoint Test H .
z The stoplamps are on
continuously z
Brake pedal position
(BPP) switch.
z Multifunction switch. z
Go To Pinpoint Test I . Klj . 1 ba
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DIAGNOSIS AND TESTING
Turn Signal and Hazard Lamps
Refer to Wiring Diagrams Cell
90 , Turn/Stop/Hazard Lamps for schematic and connector information.
Inspection and Verification 1. Verify the customer concern.
2. Visually inspect for the following obvious signs of mechanical and electrical damage.
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 cause is not visually evident, verify the symptom and refer to the Symptom Chart.
Symptom Chart SECTION 417-
01: Exterior Lighting 2003 Mustang Workshop Manual Special Tool(s)
73 III Automotive Meter
105-
R0057 or equivalent
Visual Inspection Chart Mechanical Electrical
z
Multifunction switch z
Central junction box (CJB) Fuse 13 (15A).
z CJB Fuse 18 (15A).
z Circuitry
z Electronic flasher
z Turn signal/hazard lamp
Symptom Chart Condition
Possible Sources Action
z The turn signal
lamps are never
on z
Central junction
box (CJB) fuse 13
(15A).
z CJB Fuse 18
(15A).
z Circuitry.
z Multifunction
switch. z
Go To Pinpoint Test J . Klj . 1 ba
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DIAGNOSIS AND TESTING
Parking, Rear and License Lamps
Refer to Wiring Diagrams Cell
92 , Exterior for schematic and connector information.
Inspection and Verification 1. Verify the customer concern by operating the parking lamps.
2. Visually inspect for the following obvious signs of mechanical and electrical damage.
3. If the concern is not visually evident, determine the symptom and proceed to Symptom Chart.
Symptom Chart SECTION 417-
01: Exterior Lighting 2003 Mustang Workshop Manual Special Tool(s)
73 III Automotive Meter or
equivalent
105-
R0057
Visual Inspection Chart Mechanical Electrical
z
Damaged multifunction switch
(13K359)
z Damaged headlamp switch (11654) z
Blown battery junction box (BJB) Fuse 2
(30A)
z Damaged wiring harness
z Loose or corroded connections
z Damaged parking, rear or license lamp
Symptom Chart Condition
Possible Sources Action
z The parking, rear or license
lamps are inoperative z
BJB Fuse 2 (30A).
z Circuitry.
z Headlamp switch. z
GO to Pinpoint Test L .
z One or more parking, rear or
license bulbs(s) is inoperative z
Parking, rear or
license bulb(s).
z Circuitry. z
GO to Pinpoint Test M .
z The parking, rear or license
lamps are on continuously z
Headlamp switch.
z Circuitry. z
GO to Pinpoint Test N . Klj . 1 ba
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DIAGNOSIS AND TESTING
Fog Lamps
Refer to Wiring Diagrams Cell
86 , Fog Lamps for schematic and connector information.
Principles of Operation
The fog lamps will only illuminate when the low beam or parking lamps are illuminated. Voltage from
the parking lamp circuit is used to activate the fog lamp relay when the fog lamp switch is ON. Voltage
from the high beam headlamp circuit will activate the fog lamp interrupt relay. When the fog lamp
interrupt relay is active, the ground path is removed from the fog lamp relay, turning off the fog lamps.
Inspection and Verification 1. Verify the customer concern by operating the fog lamps.
2. Visually inspect for the following obvious signs of mechanical and electrical damage.
3. If the concern is not visually evident, determine the symptom and proceed to Symptom Chart.
Symptom Chart SECTION 417-
01: Exterior Lighting 2003 Mustang Workshop Manual Special Tool(s)
73 III Automotive Meter or
equivalent
105-
R0057
Visual Inspection Chart Mechanical Electrical
z
Damaged headlamp switch (11654)
z Damaged fog lamp switch
z Damaged multifunction switch
(13K359) z
Blown battery junction box (BJB) Fuse 27
(20A)
z Blown central junction box (CJB) Fuse 38
(20A)
z Damaged wiring harness
z Loose or corroded connections
z Damaged fog lamp relay
z Damaged fog lamp interrupt relay
z Damaged fog lamp
Symptom Chart Klj . 1 ba
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DIAGNOSIS AND TESTING
Reversing Lamps
Refer to Wiring Diagrams Cell
93 , Backup Lamps for schematic and connector information.
Inspection and Verification 1. Verify the customer concern by operating the reversing lamps.
2. Visually inspect for obvious signs of mechanical and electrical damage; refer to the following chart:
3. If the concern is not visually evident, determine the symptom and proceed to Symptom Chart.
Symptom Chart SECTION 417-
01: Exterior Lighting 2003 Mustang Workshop Manual Special Tool(s)
73III Automotive Meter or
equivalent
105-
R0057
Visual Inspection Chart Mechanical Electrical
z
Damaged digital transmission range (DTR)
sensor (automatic transmission [A/T])
z Damaged reversing lamp switch (manual
transmission [M/T]) z
Blown central junction box (CJB)
Fuse 11 (15A)
z Damaged wiring harness
z Loose or corroded connections
z Damaged reversing lamp
z Damaged DTR sensor (automatic
transmission [A/T])
z Damaged reversing lamp switch
(manual transmission [M/T])
Symptom Chart Condition
Possible Sources Action
z The reversing lamps are
inoperative z
CJB Fuse 11 (15A).
z Bulbs.
z Circuitry.
z DTR sensor (A/T).
z Reversing lamp
switch (M/T). z
GO to Pinpoint Test R . Klj . 1 ba
42003 Mustang Workshop Manual
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GENERAL PROCEDURES
Headlamp Adjustment
Headlamp Aiming
1. The headlamp aiming procedure depends on the type of beam pattern the headlamp is equipped with. Vehicles may come equipped with visual optical right (VOR), visual optical left
(VOL), or SAE only (includes sealed beam type) headlamps. To identify the headlamp beam
pattern, look on the headlamp lens. Molded in small letters on the headlamp lens is one of the
following:
zSAE
z VOR or SAE
z VOL or SAE
2. Once the headlamp beam pattern is identified, aim the headlamps using one of the following methods as applicable.
zPhotometric aimers can aim SAE, VOR and VOL type headlamps. This is the preferred
method of headlamp aiming.
z Visual or screen method aiming can be used to aim SAE, VOR and VOL type
headlamps.
z Mechanical aimers can be used only with SAE type headlamps. Lamps that can be
aimed mechanically will have three nibs molded into the lens of the lamp.
Photometric Aiming 1. For the photometric aiming procedure, refer to the appropriate photometric headlamp aimer instruction manual.
Screen Method Aiming
All headlamp types
NOTE: Horizontal aim is not necessary for VOR or VOL headlamps.
NOTE: Consult your state vehicle inspection manual for recommended tolerance ranges for visual
aiming.
NOTE: The sight shield may need to be positioned or removed for access to the adjusters.
1. Before starting headlamp adjustment: zCheck the tire inflation.
z Check that no other load is in the vehicle other than a half tank of fuel.
z Check that the headlamps are clean.
z Check for correct headlamp operation.
SECTION 417-
01: Exterior Lighting 2003 Mustang Workshop Manual Klj . 1 ba
42003 Mustang Workshop Manual
18. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_5108/S3B~us~en~ ...