headlights FORD MUSTANG 2003 Workshop Manual

PINPOINT TEST H: RADIO INTERFERENCE
Component Tests
Battery—Load Test
1. With the engine running, turn the A/C on, the blower motor on high speed and the headlamps on high beam.
2. Increase the engine speed to approximately 2,000 rpm. The voltage should increase a minimum of 0.5 volt above the base voltage.
zIf the voltage does not increase as specified, carry out the Generator On- Vehicle Tests.
For additional information, refer to Generator On- Vehicle Tests in this section.
z If the voltage increases as specified, the charging system is operating normally. NOISE
z
Disconnect: Generator C102c (4.6L 4V) or
C102a (3.8L or 4.6L 2V).
z Key in START position.
z With the engine running, turn the headlights
on, rear defroster on, and the blower motor to
the HI position.
z Is the noise still present? Yes
GO to
G4 .
No
INSTALL a new generator. REFER to
Section 414 - 02 . TEST the system for
normal operation. G4 CHECK GENERATOR FOR MECHANICAL
NOISE z
Key in OFF position.
z Connect: Generator C102c (4.6L 4V) or C102a
(3.8L or 4.6L 2V).
z Key in START position.
z Turn all accessories off. With the engine
running, use a stethoscope or equivalent
listening device to probe the generator for
unusual mechanical noise.
z Is the generator the noise source? Yes
INSTALL a new generator. REFER to
Section 414
- 02 . TEST the system for
normal operation.
No
REFER to Section 303 - 00 to diagnose
the source of engine noise. Test Step Result / Action to Take
H1 VERIFY GENERATOR IS SOURCE OF
RADIO INTERFERENCE z
Key in START position.
z With the engine running, tune the radio to
a station where the interference is present.
z Key in OFF position.
z Disconnect: Generator C102c (4.6L 4V) or
C102a (3.8L or 4.6L 2V).
z Key in START position.
z With the engine running, note any radio
interference.
z Is the interference present with the
generator disconnected? Yes
REFER to
Section 415 - 00 for diagnosis and
testing of the in- vehicle entertainment
system.
No
INSTALL a new generator. REFER to
Section 414 - 02 . TEST the system for normal
operation. Klj . 10 ba
142003 Mustang Workshop Manual
18. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_5108/S3B~us~en~ ...

Fuse/Relay BlockPower Distribution
Fusible LinksPower Distribution; Generators & Regulators;
Starters
GeneratorGenerators & Regulators; Engine Performance;
Power Distribution
Generic Electronic Module (GEM)Body Control Modules; Electronic Suspension
Glow Plug RelayEngine Performance
Glow PlugsEngine Performance
GroundsGround Distribution
Headlight Door ModuleHeadlight Doors
Headlight RelayHeadlight Systems; Daytime Running Lights
HeadlightsHeadlight Systems; Daytime Running Lights
Heated Oxygen Sensor(s) (HO2S)Engine Performance
Heated Windshield Control ModuleHeated Windshields
Height SensorElectronic Suspension
HornsSteering Column Switches
Horn RelaySteering Column Switches
Idle Air Control (IAC) Motor/ValveEngine Performance
Ignition Coil(s)Engine Performance
Ignition Key Lock CylinderAnti-Theft System
Ignition ModuleEngine Performance
Ignition SwitchPower Distribution; Engine Performance; Generators & Regulators; Starters
Illuminated Entry ModuleIllumination/Interior Lights
Illumination LightsIllumination/Interior Lights
Impact SensorAir Bag Restraint System
Inertia Fuel Shutoff SwitchEngine Performance
Inhibit RelayStarters
Instrument ClusterAnalog Instrument Panels
Intake Air Temperature (IAT) SensorEngine Performance
Interior LightsIllumination/Interior Lights
Interlock SwitchStarters
Junction BlockPower Distribution
Keyless Entry ReceiverRemote Keyless Entry
Key Reminder SwitchStarters
Knock SensorEngine Performance
Lamp Control ModuleExterior Lights
License Plate LampExterior Lights
Lighting Control ModuleLighting Control Modules; Anti-Theft System; Daytime Running Lights; Headlight Systems
Lower RelayPower Convertible Top
Malfunction Indicator Light (MIL)Engine Performance; Instrument Panels
Manifold Absolute Pr essure (MAP) SensorEngine Performance
Mass Airflow (MAF) SensorEngine Performance


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15 ноября 2011 г. 20:18:43Page 7 © 2006 Mitchell Repair Information Company, LLC.

Fig. 26: Ground Distribution Circuit (2 of 2)
HEADLIGHTS

2003 Ford Mustang
2003 SYSTEM WIRING DIAGRAMS Ford - Mustang
111
18 ноября 2011 г. 12:45:09Page 27 © 2006 Mitchell Repair Information Company, LLC.

Fig. 27: Headlights Circuit
HORN

2003 Ford Mustang
2003 SYSTEM WIRING DIAGRAMS Ford - Mustang
111
18 ноября 2011 г. 12:45:09Page 28 © 2006 Mitchell Repair Information Company, LLC.

Fig. 26: Ground Distribution Circuit (2 of 2)
HEADLIGHTS

2003 Ford Mustang GT
2003 SYSTEM WIRING DIAGRAMS Ford - Mustang
111
18 ноября 2011 г. 12:50:34Page 27 © 2006 Mitchell Repair Information Company, LLC.

Fig. 27: Headlights Circuit
HORN

2003 Ford Mustang GT
2003 SYSTEM WIRING DIAGRAMS Ford - Mustang
111
18 ноября 2011 г. 12:50:34Page 28 © 2006 Mitchell Repair Information Company, LLC.

Fig. 26: Ground Distribution Circuit (2 of 2)
HEADLIGHTS

2003 Ford Mustang Cobra
2003 SYSTEM WIRING DIAGRAMS Ford - Mustang
111
18 ноября 2011 г. 12:47:06Page 27 © 2006 Mitchell Repair Information Company, LLC.

Fig. 27: Headlights Circuit
HORN

2003 Ford Mustang Cobra
2003 SYSTEM WIRING DIAGRAMS Ford - Mustang
111
18 ноября 2011 г. 12:47:06Page 28 © 2006 Mitchell Repair Information Company, LLC.

Fig. 26: Ground Distribution Circuit (2 of 2)
HEADLIGHTS

2003 Ford Mustang Mach 1
2003 SYSTEM WIRING DIAGRAMS Ford - Mustang
111
18 ноября 2011 г. 12:54:33Page 27 © 2006 Mitchell Repair Information Company, LLC.

Fig. 27: Headlights Circuit
HORN

2003 Ford Mustang Mach 1
2003 SYSTEM WIRING DIAGRAMS Ford - Mustang
111
18 ноября 2011 г. 12:54:33Page 28 © 2006 Mitchell Repair Information Company, LLC.