key FORD MUSTANG 2003 Owner's Guide

z
Is the resistance greater than 10,000 ohms? F3 CHECK THE SUSPECT ANTI-
LOCK BRAKE
SENSOR FOR A SHORT TO GROUND z
Disconnect: Suspect Anti- Lock Brake Sensor.
z Measure the resistance between suspect anti- lock
brake sensor Pin 1 (component side) and ground.
z Is the resistance greater than 10,000 ohms? Yes
If RF, REPAIR Circuit 514 (YE/RD)
and Circuit 516 (YE/BK), as
necessary. CLEAR the DTCs.
REPEAT the self-
test. If LF, REPAIR
Circuit 521 (TN/OG) and Circuit 522
(TN/BK), as necessary. CLEAR the
DTCs. REPEAT the self- test. If RR,
REPAIR Circuit 494 (TN/LG) and
Circuit 492 (BN), as necessary.
CLEAR the DTCs. REPEAT the self-
test. If LR, REPAIR Circuit 496 (OG)
and Circuit 499 (GY/BK), as
necessary. CLEAR the DTCs.
REPEAT the self- test.
No
INSTALL a new anti- lock brake
sensor; REFER to Sensor — Front or
Sensor — Rear . CLEAR the DTCs.
REPEAT the self- test. F4 CHECK THE SUSPECT ANTI-
LOCK BRAKE
SENSOR CIRCUIT FOR FOR AN OPEN z
Key in OFF position.
z Measure the resistance between anti- lock brake
control module C141 Pins, harness side and
suspect anti- lock brake sensor, harness side as
follows: DTC Anti-Lock
Brake Control Module Anti-Lock
Brake
Sensor Circuit
C1145
(RF) C141 Pin 4 C145 Pin 1 514
(YE/RD) C1145
(RF) C141 Pin 5 C145 Pin 2 516
(YE/BK) C1155
(LF) C141 Pin 20 C144 Pin 1 521
(TN/OG) C1155
(LF) C141 Pin 21 C144 Pin 2 522
(TN/BK) C1165
(RR) C141 Pin 1 C319 Pin 2 494
(TN/LG) C1165 C141 Pin 3 C319 Pin 1 492 (BN) Yes
GO to
F5 .
No
REPAIR the circuit in question.
CLEAR the DTCs. REPEAT the self-
test. Klj . 12 ba
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PINPOINT TEST H: DTC C1233 (LF), C1234 (RF), C1235 (RR), C1236
(LR), ANTI-
LOCK BRAKE SENSOR INPUT SIGNAL MISSING
PINPOINT TEST I: THE YELLOW ABS WARNING INDICATOR DOES
NOT SELF- CHECK mode on the diagnostic tool:
CLEAR the DTCs.
z Key in OFF position.
z Key in ON position.
z Test drive the vehicle over 24
km/h (15 mph).
z Enter the following diagnostic
mode on the diagnostic tool:
Retrieve DTCs.
z Is DTC C1222 retrieved? INSTALL a new anti-
lock brake control module;
REFER to Module . REPEAT the self-
test.
No
If another DTC is retrieved, GO to the Anti- Lock Brake
Control Module Diagnostic Trouble Code (DTC) index.
If no DTCs are retrieved, system is OK. Test Step Result / Action to Take
H1 CHECK THE SUSPECT ANTI-
LOCK BRAKE
SENSOR z
Check the suspect anti- lock brake sensor
mounting.
z Check the suspect anti- lock brake sensor for
excessive dirt build up, obstructions, and
damage.
z Is the suspect anti- lock brake sensor and
mounting OK? Yes
GO to
H2 .
No
REPAIR as necessary. CLEAR the
DTCs. REPEAT the self- test. H2 CHECK THE SUSPECT ANTI-
LOCK BRAKE
SENSOR INDICATOR z
Check the suspect anti- lock brake sensor
indicator for corrosion, nicks, bridged teeth,
damaged teeth, correct mounting, and
alignment with the anti- lock brake sensor.
z Check the air gap and bearing end play.
z Is the suspect anti- lock brake sensor
indicator OK? Yes
GO to
H3 .
No
INSTALL a new anti- lock brake sensor
indicator; REFER to Sensor Indicator —
Front or
Sensor Indicator — Rear .
CLEAR the DTCs. REPEAT the self- test. H3 CHECK THE ANTI-
LOCK BRAKE SENSOR
OUTPUT z
Key in ON position.
z Enter the following diagnostic mode on the
diagnostic tool: CLEAR the DTCs.
z Key in OFF position.
z Key in ON position.
z Have an assistant monitor the anti- lock brake
control module PIDs LF_WSPD, RF_WSPD,
LR_WSPD, and RR_WSPD while driving at
various speeds.
z NOTE: the vehicle must be driven 16 km (10
miles) during this test step.
z Test drive the vehicle for 16 km (10 miles).
z Are the anti- lock brake control module PIDs
approximately the same at all times? Yes
INSTALL a new anti-
lock brake control
module; REFER to Module . REPEAT
the self- test.
No
INSTALL a new anti- lock brake sensor;
REFER to Sensor — Front or
Sensor —
Rear . CLEAR the DTCs. REPEAT the
self- test. Klj . 14 ba
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PINPOINT TEST J: SPONGY BRAKE PEDAL WITH NO WARNING
INDICATOR
PINPOINT TEST K: POOR VEHICLE TRACKING DURING ANTI-
LOCK
FUNCTION Test Step Result / Action to Take
I1 CHECK THE ABS WARNING INDICATOR CIRCUITRY
z
Key in OFF position.
z Disconnect: Anti- Lock Brake Control Module C141.
z Key in ON position.
z Depress and release the shorting bar connector
internal to the anti- lock brake control module C141,
harness side, while checking the yellow ABS warning
indicator in the instrument cluster.
z Does the yellow ABS indicator illuminate with the
shorting bar released and OFF with the shorting
bar depressed? Yes
INSTALL a new anti-
lock brake
control module; REFER to
Module . TEST the system for
normal operation.
No
REFER to Section 413 - 01 .
Test Step Result / Action to Take
J1 CHECK THE VEHICLE COMPONENTS
z
Check the brake pedal and power
booster/brake master cylinder for correct
attachment.
z Are the components OK? Yes
GO to
J2 .
No
REPAIR as necessary. TEST the system for
normal operation. J2 BLEED THE BRAKE SYSTEM
z
Bleed the brake system; REFER to Section 206 - 00 .
z Check for spongy brake pedal.
z Is the brake pedal spongy? Yes
INSTALL a new HCU; REFER to
Hydraulic Control Unit . TEST the system for normal
operation.
No
The brake system is OK. TEST the system
for normal operation. Test Step Result / Action to Take
K1 BLEED THE BRAKE SYSTEM
z
Bleed the brake system; REFER to Section 206 - 00 .
z Check for vehicle tracking poorly.
z Does the vehicle track poorly? Yes
GO to
K2 .
No
The brake system is OK. TEST the
system for normal operation. K2 CHECK THE LF ABS VALVE OPERATION
z
Lift the vehicle and rotate all the wheels to
make sure they rotate freely (the vehicle must
be in neutral).
z NOTE: Trigger must be depressed twice.
Each depress runs the pump motor for two
seconds. Yes
INSTALL a new HCU; REFER to
Hydraulic Control Unit
. TEST the system
for normal operation.
No Klj . 15 ba
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PINPOINT TEST L: THE TRACTION CONTROL IS INOPERATIVE—
DOES NOT OPERATE CORRECTLY K8 CHECK THE RR ABS VALVE OPERATION
z
NOTE: Trigger must be depressed twice.
Each depress runs the pump motor for two
seconds.
z Trigger the anti- lock brake control module
active command PMP MOTOR ON for four
seconds.
z Apply moderate brake pedal effort.
z Have an assistant attempt to rotate the RR
wheel while the pump motor is running.
z Does the RR wheel rotate? Yes
INSTALL a new HCU; REFER to
Hydraulic Control Unit
. TEST the system
for normal operation.
No
GO to K9 .
K9 CHECK THE RR ABS VALVE RELEASE
z
Apply moderate brake pedal effort.
z Trigger the anti- lock brake control module
active command RF INLET and RF OUTLET.
z NOTE: The scan tool will energize the valves
for only two seconds per trigger press.
z Have an assistant rotate the RR wheel
immediately after depressing trigger.
z Does the RR wheel rotate? Yes
The ABS system is operating correctly.
No
GO to
K10 .
K10 CHECK FOR DTCS
z
Carry out the anti- lock brake control module
self- test.
z Are any DTCs retrieved? Yes
GO to the Anti-
Lock Brake Control Module
Diagnostic Trouble Code (DTC) Index.
No
INSTALL a new HCU; REFER to
Hydraulic Control Unit . TEST the system
for normal operation. Test Step Result / Action to Take
L1 CHECK THE TRACTION CONTROL SWITCH CIRCUITRY
z
Key in OFF position.
z Disconnect: Instrument Cluster C251.
z Key in ON position.
z Measure the voltage between instrument cluster C251 Pin 9,
Circuit 959 (GY), harness side and ground, while depressing
and releasing the traction control switch.
z Is the voltage greater than 10 volts with the traction control
switch depressed and zero volts with the traction control
switch released? Yes
INSTALL a new
instrument cluster,
REFER to
Section 413 -
01 . TEST the system
for normal operation.
No
GO to L2 . Klj . 17 ba
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PINPOINT TEST M: THE TRACTION CONTROL INDICATOR IS
INOPERATIVE—
TRACTION CONTROL SWITCH L2 CHECK CIRCUIT 959 (GY) FOR AN OPEN
z
Key in OFF position.
z Disconnect: Traction Control Switch C239.
z Measure the resistance between instrument cluster C251 Pin 9,
Circuit 959 (GY), harness side and traction control switch C239
Pin 4, Circuit 959 (GY), harness side.
z Is the resistance less than 5 ohms? Yes
GO to
L3 .
No
REPAIR the circuit.
TEST the system for
normal operation. L3 CHECK CIRCUIT 489 (PK/BK) FOR AN OPEN
z
Key in ON position.
z Measure the voltage between traction control switch C239 Pin
3, Circuit 489 (PK/BK), harness side and ground.
z Is the voltage greater than 10 volts? Yes
INSTALL a new traction
control switch. TEST the
system for normal
operation.
No
REPAIR the circuit.
TEST the system for
normal operation.
Test Step Result / Action to
Take M1 CHECK CIRCUIT 960 (BK/LB)
z
Key in OFF position.
z Disconnect: Instrument Cluster C251.
z Disconnect: Traction Control Switch C239.
z Measure the resistance between instrument cluster C251 Pin 8,
Circuit 960 (BK/LB), harness side and traction control switch C239
Pin 5, Circuit 960 (BK/LB), harness side; and between instrument
cluster C251 Pin 8, Circuit 960 (BK/LB), harness side and ground. Yes
GO to
M2 .
No Klj . 18 ba
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z
Is the resistance less than 5 ohms between the instrument
cluster and traction control switch and greater than 10,000
ohms between instrument cluster and ground? M2 CHECK CIRCUIT 489 (PK/BK) FOR AN OPEN
z
Key in ON position.
z Measure the voltage between traction control switch C239 Pin 3,
Circuit 489 (PK/BK), harness side and ground.
z Is the voltage greater than 10 volts? Yes
GO to
M3 .
No
REPAIR the circuit.
TEST the system
for normal
operation. M3 CHECK THE TRACTION CONTROL SWITCH INDICATOR
z
Key in OFF position.
z Connect: Traction Control Switch C239.
z Key in ON position.
z Momentarily connect a fused (10A) jumper wire between instrument
cluster C251 Pin 8, Circuit 960 (BK/LB), harness side and ground,
while observing the traction control switch indicator.
z Does the traction control switch indicator illuminate? Yes
INSTALL a new
instrument cluster;
REFER to
Section 413 - 01 . TEST the
system for normal
operation.
No
INSTALL a new
traction control
switch. TEST the
system for normal
operation. Klj . 19 ba
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6. Rotate the steering column intermediate shaft as necessary to access the pinch bolt. Remove
and discard the pinch bolt.
7. Lower the vehicle.
8. Turn the steering wheel back to the straight- ahead position. Turn the ignition key to the locked
position.
9. CAUTION: Do not rotate the steering wheel when the lower steering column shaft is
disconnected, or damage to the air bag sliding contact will result.
Disconnect the steering column intermediate shaft coupling (3A525).
10. Remove the nuts, washers and bolts. Position the steering gear (3504) forward.
11. Disconnect the power steering hoses. Remove and discard the seal rings. zPlug or cap the power steering hoses and steering gear ports to prevent damage and the
entry of foreign material. Klj . 2 ba
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NOTE:
All fasteners are important because they can affect the performance of vital parts and systems.
Incorrect installation of the fasteners can result in major repair expenses. They must be installed new
with fasteners of the same part number if installation becomes necessary. Do not install a new part of
lesser quality or substitute a design. Torque values must be used as specified during assembly to
make sure these parts function correctly.
The body of the steering column (3C529) is made of magnesium die castings. The steering column is
attached to a support that is an integral part of the instrument panel. The lower attachments of the
steering column are through a bracket that bends during collapse. The upper attachments are through
plastic shear modules that separate from the main casting during collapse. A clip and washer are
attached to the shear modules to reduce steering column shake and to assist in installation of the
steering column. 45 N621906 Nut
46 N803942 Bolt
47 3A525 Intermediate shaft coupling
48 11A128 Ignition key warning switch terminal
49 N806583 Bearing housing retaining screw
50 N804865-
S58 Screw
51 14A06 Wire connector bracket
52 3E715 Lock lever lower actuator
53 3E691 Lock pawl
54 3F723 Actuator housing
55 3E745 Lock actuator cover
56 3F719 Ignition/shifter interlock cable
57 N808124-
58M Screw
58 3D655 Position spring
59 3D656 Tilt flange bumper
60 N806582 Tilt pivot screws
61 11582 Ignition switch lock cylinder
62 3E700 Lock housing bearing
63 3E717 Lock gear
64 3530 Upper shroud
65 3511 Lock cylinder housing
66 N805857 Lock actuator lever pin
67 3D681 Bearing retainer Klj . 3 ba
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REMOVAL AND INSTALLATION
Ignition Switch Lock Cylinder —
Functional
Removal and Installation 1. Disconnect the battery ground cable. For additional information, refer to Section 414 - 01 .
2. Remove the ignition switch lock cylinder (11582). 1. Insert the ignition key and turn to the RUN position.
2. Using a 1/8- inch drift, press the ignition switch lock cylinder release pin through the
access hole while pulling out the ignition switch lock cylinder.
3. To install, reverse the removal procedure. zVerify ignition switch lock cylinder operation.
SECTION 211-
04: Steering Column 2003 Mustang Workshop Manual Klj . 1 ba
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REMOVAL AND INSTALLATION
Ignition Switch Lock Cylinder —
Non-Functional
Removal and Installation 1. NOTE: Make sure the front wheels are in the straight- ahead position.
Disconnect the battery ground cable (14301) and wait at least one minute to allow the depletion
of the restraint system backup power supply. For additional information, refer to Section 414 -
01 .
2. WARNING: To avoid the risk of serious personal injury, read and follow all
warnings, cautions, notes and instructions in the deactivation procedure.
Deactivate the supplemental restraint system (SRS). For additional information, refer to
Supplemental Restraint System (SRS) Deactivation and Reactivation in this section.
3. WARNING: To reduce the risk of serious personal injury, read and follow all
warnings, cautions, notes and instructions in the steering wheel removal and installation
procedure.
Remove the steering wheel assembly. For additional information, refer to Wheel in this section.
4. Twist off the cap from the ignition switch cylinder.
5. NOTE: The lock cylinder is repaired by discarding the inoperative lock cylinder and building a
new lock cylinder using the appropriate lock repair package (F85Z-11582- AA). The lock repair
package includes a detailed instruction sheet to build the new lock cylinder to the current key
code of the vehicle.
SECTION 211-
04: Steering Column 2003 Mustang Workshop Manual Klj . 1 ba
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