2003 FORD MUSTANG air condition

Pinpoint Tests
PINPOINT TEST O: THE FOG LAMPS ARE INOPERATIVE Condition
Possible Sources Action
z The fog lamps are
inoperative z
BJB Fuse 27 (20A).
z CJB Fuse 38 (20A).
z Circuitry.
z Fog lamp relay.
z Fog lamp interrupt
relay.
z Headlamp switch.
z Fog lamp switch.
z Multifunction switch. z
GO to Pinpoint Test O .
z The individual fog lamp is
inoperative z
Fog lamp bulb.
z Circuitry. z
GO to Pinpoint Test P .
z The fog lamps are on
continuously z
Fog lamp relay.
z Circuitry.
z Fog lamp switch. z
GO to Pinpoint Test Q .
Test Step Result / Action
to Take O1 CHECK THE PARK LAMPS
z
Place the headlamp switch in the PARK position.
z Place the multifunction switch in low beam position.
z Do the park lamps illuminate? Yes
Turn off the
headlamp switch.
GO to
O2 .
No
GO to Pinpoint Test L .
O2 CHECK THE FOG LAMP RELAYS
z
Disconnect: Fog Lamp Relay.
z Disconnect: Fog Lamp Interrupt Relay.
z Check the fog lamp relay and fog lamp interrupt relay; refer to Wiring
Diagrams Cell 149.
z Are the relays OK? Yes
GO to
O3 .
No
INSTALL new
relay(s). TEST
the system for
normal
operation. O3 CHECK THE CIRCUIT 12 (LG/BK)
z
Measure the voltage between fog lamp interrupt relay connector Pin 1,
Circuit 12 (LG/BK), harness side and ground. Yes
GO to
O4 .
No
REPAIR the
circuit. TEST the
system for
normal
operation. Klj . 2 ba
62003 Mustang Workshop Manual
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(LB/OG) FOR SHORT TO GROUND BETWEEN THE GEM AND
THE MULTIFUNCTION SWITCH
z
Key in OFF position.
z Using the following table, measure the resistance between
the GEM C201e Pins, harness side and ground.
z Are the resistances greater than 10,000 ohms? Pin Circuit
5 682 (DB)
18 684 (PK/YE)
19 680 (LB/OG) Yes
REPAIR the circuit(s) in
question. REPEAT the self-
test. CLEAR the DTCs.
No
GO to
B9 .
B9 CHECK CIRCUITS 682 (DB), 684 (PK/YE), AND 680
(LB/OG) FOR AN OPEN CONDITION BETWEEN GEM AND
MULTIFUNCTION SWITCH z
Using the following table, measure the resistance between
the GEM C201e Pins, harness side and multifunction
switch C202a Pins, harness side.
z Are the resistances less than 5 ohms? GEM Multifunction Switch Circuit
C260 Pin 5 C202a Pin 685 682 (DB)
C260 Pin 18 C202a Pin 590 684 (PK/YE)
C260 Pin 19 C202a Pin 993 680 (LB/OG) Yes
INSTALL a new GEM. For
additional information,
REFER to
Section 419 - 10 .
REPEAT the self- test.
CLEAR the DTCs.
No
REPAIR circuit(s) in question.
REPEAT the self- test.
CLEAR the DTCs. B10 CHECK CIRCUITS 65 (DG) FOR OPEN CIRCUIT
CONDITION BETWEEN BJB AND CJB NOTE:
Verify voltage at CJB F26 (30A) before carrying out
this test.
z Disconnect: Wiper On/Off Relay.
z Measure the voltage between BJB ON and OFF wiper Yes
GO to
B11 .
No Klj . 9 ba
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z
Is the voltage greater than 10 volts? B14 CHECK CIRCUIT 646 (YE/WH) FOR SHORT TO
GROUND BETWEEN GEM AND BJB z
Measure the resistance between GEM C201d Pin 12,
Circuit 646 (YE/WH), harness side and ground.
z Is the resistance greater than 10,000 ohms? Yes
GO to
B15 .
No
REPAIR Circuit 646
(YE/WH). REPEAT the self-
test. CLEAR the DTCs. B15 CHECK CIRCUIT 646 (YE/WH) FOR OPEN BETWEEN
GEM AND BJB z
Measure the resistance between GEM C201d Pin 12,
Circuit 646 (YE/WH), harness side and BJB wiper ON/OFF
relay Pin 1, Circuit 646 (YE/WH), harness side.
z Is the resistance less than 5 ohms? Yes
INSTALL a new GEM. For
additional information REFER
to
Section 419 - 10 . REPEAT
the self- test. CLEAR the
DTCs.
No
REPAIR Circuit 646
(YE/WH). REPEAT the self-
test. CLEAR the DTCs. B16 CHECK CIRCUITS 65 (DG) AND 61 (YE/RD) FOR OPEN
CONDITION BETWEEN BJB AND CJB z
Disconnect: Wiper HIGH/LOW Relay.
z Trigger the GEM active command WIPER RLY to ON.
z Measure the voltages between BJB wiper HIGH/LOW
relay Pin 86, Circuit 65 (DG), harness side and ground;
and between BJB wiper HIGH/LOW relay Pin 30, Circuit
61 (YE/RD), harness side and ground.
z Are the voltages greater than 10 volts? Yes
GO to
B17 .
No
REPAIR circuit in question.
REPEAT the self- test.
CLEAR the DTCs. B17 ISOLATE THE PROBLEM BETWEEN THE GEM AND
THE BJB z
Trigger the GEM active command WIPER RLY to ON. Yes Klj . 11 ba
202003 Mustang Workshop Manual
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z
Is the resistance greater than 10,000 ohms? B21 CHECK CIRCUIT 647 (GY/LB) FOR OPEN CONDITION
BETWEEN GEM AND BJB z
Measure the resistance between GEM C201d Pin 5,
Circuit 647 (GY/LB), harness side and wiper HIGH/LOW
relay Pin 85, Circuit 647 (GY/LB), harness side.
z Is the resistance less than 5 ohms? Yes
INSTALL a new GEM.
REFER to
Section 419 - 10 .
REPEAT the self- test.
CLEAR the DTCs.
No
REPAIR Circuit 647 (GY/LB).
REPEAT the self- test.
CLEAR the DTCs. B22 CHECK CIRCUIT 61 (YE/RD) FOR OPEN CIRCUIT
CONDITION BETWEEN WIPER ON/OFF AND HIGH/LOW
RELAYS z
Disconnect: Wiper HIGH/LOW Relay.
z Disconnect: Wiper ON/OFF Relay.
z Measure the resistance between wiper ON/OFF relay Pin
3, Circuit 61 (YE/RD), harness side and wiper HIGH/LOW
relay Pin 30, Circuit 61 (YE/RD), harness side.
z Is the resistance less than 5 ohms? Yes
GO to
B23 .
No
REPAIR Circuit 61 (YE/RD).
REPEAT the self- test.
CLEAR the DTCs. B23 CARRY OUT THE WIPER HIGH/LOW RELAY
COMPONENT TEST z
Check the wiper HIGH/LOW relay; refer to Wiring
Diagrams, Cell 149, Component Testing.
z Is the wiper HIGH/LOW relay OK? Yes
GO to
B24 .
No
INSTALL a new wiper
HIGH/LOW relay. REPEAT
the self- test. CLEAR the Klj . 13 ba
202003 Mustang Workshop Manual
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DTCs.
B24 CHECK CIRCUIT 56 (DB/OG) FOR AN OPEN CIRCUIT
BETWEEN THE WIPER HIGH/LOW RELAY AND THE WIPER
MOTOR z
Disconnect: Wiper Motor C125.
z Measure the resistance between wiper HIGH/LOW relay
Pin 87A, Circuit 56 (DB/OG), harness side and wiper
motor C125 Pin 4, Circuit 56 (DB/OG), harness side.
z Is the resistance less than 5 ohms? Yes
GO to
B25 .
No
REPAIR Circuit 56 (DB/OG).
REPEAT the self- test.
CLEAR the DTCs. B25 CHECK CIRCUIT 1205 (BK) FOR OPEN CIRCUIT
CONDITION BETWEEN WIPER MOTOR AND GROUND z
Measure the resistance between wiper motor C125 Pin 3,
Circuit 1205 (BK), harness side and ground.
z Is the resistance less than 5 ohms? Yes
CARRY OUT the windshield
wiper motor component test.
REFER to Component Test.
If the component fails,
INSTALL a new wiper motor;
REFER to
Motor — Windshield
Wiper . REPEAT the self-
test.
CLEAR the DTCs.
No
REPAIR Circuit 1205 (BK).
REPEAT the self- test.
CLEAR the DTCs. B26 CHECK CIRCUIT 58 (WH) FOR AN OPEN CIRCUIT
BETWEEN THE WIPER HIGH/LOW RELAY AND THE WIPER
MOTOR z
Disconnect: Wiper Motor C125.
z Measure the resistance between wiper motor C125 Pin 5,
Circuit 58 (WH), harness side and wiper HIGH/LOW relay
Pin 87, Circuit 58 (WH), harness side.
z Is the resistance less than 5 ohms? Yes
CARRY OUT the windshield
wiper motor component test.
REFER to Component Test.
If the component fails,
INSTALL a new wiper motor;
REFER to
Motor — Windshield
Wiper . REPEAT the self-
test.
CLEAR the DTCs.
No
REPAIR Circuit 58 (WH).
REPEAT the self- test.
CLEAR the DTCs. B27 CHECK CIRCUIT 28 (BK/PK) FOR OPEN CIRCUIT
CONDITION BETWEEN THE WIPER HIGH/LOW RELAY AND
THE WIPER MOTOR Klj . 14 ba
202003 Mustang Workshop Manual
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Symptom Chart
PINPOINT TEST A: THE CONVERTIBLE TOP DOES NOT
RAISE/LOWER
SYMPTOM CHART Condition
Possible Sources Action
z The convertible top does not
raise/lower z
Convertible top
switch.
z Central junction box
(CJB) Fuse 20 (15A).
z Parking brake switch.
z Lower relay.
z Raise relay.
z Circuitry. z
Go To Pinpoint Test
A .
z The convertible top
hesitates/comes up uneven z
Convertible top
adjustment.
z Hydraulic lift
cylinders.
z Hydraulic system. z
Go To Pinpoint Test
B .
z The convertible top does not
raise or does not go up all the
way z
Convertible top
adjustment.
z Hydraulic lift
cylinders.
z Hydraulic system. z
Go To Pinpoint Test
C .
z The convertible top hydraulic
system z
Convertible top
adjustment.
z Hydraulic lift
cylinders.
z Hydraulic motor/pump
assembly.
z Hydraulic system. z
Go To Pinpoint Test
D .
Test Step Result / Action to
Take A1 CHECK THE CONVERTIBLE TOP OPERATION
NOTE:
The parking brake must be applied for the convertible top
system to operate.
z Key in ON position.
z Depress the convertible top switch in RAISE and LOWER
positions while listening for motor operation.
z Does the convertible top motor assembly operate in both
directions? Yes
Go To Pinpoint Test
C .
No
GO to A2 .
A2 CHECK THE POWER SUPPLY TO THE CONVERTIBLE TOP
SWITCH z
Key in OFF position.
z Disconnect: Convertible Top Switch C3115.
z Key in ON position.
z Measure the voltage between convertible top switch C3115 pin 4,
circuit 296 (WH/PK), harness side and ground. Yes
GO to
A3 .
No
REPAIR circuit 296
(WH/PK). TEST the
system for normal
operation. Klj . 2 ba
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DESCRIPTION AND OPERATION
Safety Belt System
WARNING: All safety belt assemblies include retractors, buckles, front seat belt buckle
support assemblies (slide bar, if so equipped), shoulder belt height adjuster (if equipped), child
safety seat tether bracket assemblies (if equipped) and attaching hardware should be inspected
after any collision. Ford recommends new safety belt assemblies be installed unless a qualified
technician finds the assemblies show no damage and operate correctly. Safety belt assemblies
not in use during a collision should also be inspected and new assemblies installed if either
damage or incorrect operation is noted.
WARNING: Each seating position in the vehicle has a specific safety belt assembly which
consists of one buckle and one tongue. The safety belt assembly is designed to be used as a
pair and is not to be used across seating positions.
A continuous- loop, single retractor active restraint system is used on this vehicle for both the front
seats and the rear seats.
Safety Belt, Lap/Shoulder— Dual Locking Mode
WARNING: Rear- facing infant seats should never be placed in the front seats. Failure to
follow these instructions may result in personal injury.
The dual locking mode retractor on the shoulder belt portion of the combination lap/shoulder safety belt
for the front seat passenger and rear seat outboard passengers operates in two ways:
1. In the vehicle- sensitive (emergency locking) mode, the shoulder belt retractor will allow the
occupant freedom of movement, locking tightly only on hard braking, hard cornering or impacts
of approximately 8 km/h (5 mph) or more. The front and rear outboard safety belt retractors can
also be made to lock by pulling/jerking on the belt.
2. In the automatic locking mode, the shoulder belt retractor locks automatically and remains locked when the combination lap/shoulder safety belt is buckled, restricting occupant
movement. This mode provides tight lap/shoulder belt fit on the occupant and on a child safety
seat or infant carrier installation restraint.
When the combination lap/shoulder belt is unbuckled and allowed to retract completely, the retractor
switches to the vehicle sensitive (emergency) locking mode.
The automatic locking mode must be used when installing a child safety seat on the front passenger
seat and rear outboard seats where dual locking retractors are provided.
Safety Belt Warning System
The safety belt warning indicator illuminates and a chime sounds to remind the occupants to fasten
their safety belts.
The conditions of operation for the safety belt warning indicator and chime are as follows:
zIf the driver safety belt is not buckled before the ignition switch is turned to ON, then the safety
belt warning indicator illuminates for one to two minutes and the warning chime sounds for four
to eight seconds.
SECTION 501-
20A: Safety Belt System 2003 Mustang Workshop Manual Klj . 1 ba
32003 Mustang Workshop Manual
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DIAGNOSIS AND TESTING
Safety Belt System
Inspection and Verification
1. Verify the customer's concern by operating the active restraint system to duplicate the condition.
2. Inspect to determine if any of the following mechanical or electrical concerns apply:
3. If the inspection reveals an obvious concern(s) that can be readily identified, repair as required. With the exception of removing a twist from the safety belt webbing, do not attempt to repair a
component of the safety belt system; new components must be installed.
4. If the concern remains after the inspection, determine the symptom. GO to Symptom Chart .
Symptom Chart SECTION 501-
20A: Safety Belt System 2003 Mustang Workshop Manual Visual Inspection Chart
Mechanical Electrical
z
Inspect the safety belt webbing for
integrity. z
Open fuse.
z Bare, broken or disconnected wire.
z Connector not tightly engaged.
z Safety belt warning indicator lamp burned out or
broken.
Symptom Chart Condition
Possible Sources Action
z The safety belt warning
chime does not operate, the
safety belt warning indicator
lamp is OK z
Virtual
image
cluster
(VIC).
z Circuitry.
z Driver seat
module. z
REFER to Section 413 -
01 .
z The safety belt warning
indicator lamp does not
operate, the safety belt
warning chime is OK z
Burned- out
bulb.
z Circuitry.
z Driver seat
module. z
REFER to Section 413 -
01 .
z Neither the safety belt
warning chime nor the
safety belt warning indicator
lamp operates z
Safety belt
buckle
switch.
z Driver seat
module. z
REFER to Section 413 -
01 . Klj . 1 ba
42003 Mustang Workshop Manual
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