lock FORD MUSTANG 2003 Workshop Manual

Installation
1. Using the special tools, align the rear anti- lock brake sensor indicator to the rear axle shaft.
2. Using the special tools, press the rear anti- lock brake sensor on the rear axle shaft to
specification. Klj . 2 ba
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REMOVAL AND INSTALLATION
Hydraulic Control Unit
Removal
1. Disconnect the battery ground cable(14301).
2. Disconnect the anti- lock-brake control module electrical connector.
3. NOTE: The 4 wheel anti- lock brake system (4WABS) with traction control is shown , the
4WABS without traction control system is similar with one less hydraulic line.
NOTE: Plug brake lines to prevent any brake fluid loss.
Disconnect the brake lines from the hydraulic control unit (HCU).
4. Remove the HCU bracket nuts to HCU.
5. Remove the HCU.
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6. Remove the pump motor electrical connector.
7. Remove the anti-
lock-brake control module screws.
8. Remove the anti- lock-brake control module from the HCU.
Installation 1. NOTE: The brake system must be bled after the HCU is installed or replaced. Refer to Section 206 - 00 .
To install, reverse the removal procedure. Klj . 2 ba
32003 Mustang Workshop Manual
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REMOVAL AND INSTALLATION
Module
Removal
1. Remove the hydraulic control unit (HCU). Refer to Hydraulic Control Unit .
2. Remove the pump motor electrical connector.
3. Remove the anti- lock-brake control module screws.
4. Remove the anti- lock-brake control module from the HCU.
Installation
1. NOTE: The brake system must be bled after the HCU is installed or replaced. Refer to Section 206 - 00 .
To install, reverse the removal procedure.
SECTION 206-
09A: Anti-Lock Control — Rear 2003 Mustang Workshop Manual Klj . 1 ba
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REMOVAL AND INSTALLATION
Sensor —
Front
Removal 1. Remove the wheel and tire assembly. For additional information, refer to Section 204 - 04 .
2. Remove the inner fender splash shield. 1. Remove the inner fender splash shield push pins.
2. Remove the inner fender splash shield screw.
3. Remove the inner fender splash shield.
3. Remove the front anti- lock brake sensor electrical connector.
4. Remove the front anti- lock brake sensor harness from the anti- lock brake sensor harness clips.
5. Remove the front anti- lock brake sensor.
1. Remove the front anti- lock brake sensor bolt.
2. Remove the anti- lock brake sensor harness from the harness clips.
3. Remove the front anti- lock brake sensor.
SECTION 206-
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32003 Mustang Workshop Manual
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REMOVAL AND INSTALLATION
Sensor —
Rear
Removal 1. Remove the rear passenger seat.
2. Disconnect the rear anti- lock brake sensor electrical connector.
3. Raise and support the vehicle. For additional information, refer to Section 100 - 02 .
4. Remove the rear anti- lock brake sensor harness from the floor pan.
5. Remove the anti- lock brake sensor harness bracket bolt.
6. NOTE: The sensor may be siezed to the axle. Use Rust Penetrant and Inhibitor F2AZ-19A501-
A meeting Ford specification ESR- M99C56-A to loosen the sensor for removal.
Remove the rear anti- lock brake sensor.
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1. Remove the rear anti-
lock brake sensor bolt.
2. Remove the rear anti- lock brake sensor.
Installation 1. NOTE: Be sure to apply High Temperature Nickel Anti- Sieze Lubricant F6AZ-9L494-AA
meeting Ford specification ESE-M124A- A to the sensor body where it will make contact when
installed.
To install, reverse the removal procedure. Klj . 2 ba
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SPECIFICATIONS
SECTION 206-
09B: Anti-Lock Control — Traction Control 2003 Mustang Workshop Manual Torque Specifications
Description Nm lb-
ft lb-
in Anti-
lock brake control module screws 3 — 26
Brake line fittings to hydraulic control unit 19 14 —
Front anti-
lock brake sensor bolt 7 — 62
Hydraulic control unit to mounting bracket nuts 18 13 —
Rear anti-
lock brake sensor bolt 7 — 62 Klj . 1 ba
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DESCRIPTION AND OPERATION
Anti-
Lock Control — Traction Control
The four wheel anti- lock brake system (4WABS) with traction control consists of the following
components:
zanti- lock brake control module (2C346)
z front anti- lock brake sensor (2C204)/(2C205)
z front anti- lock brake sensor indicator (2C182)
z hydraulic control unit (2C286)
z powertrain control module (12A650)
z rear anti- lock brake sensor (2C190)/(2C216)
z rear anti- lock brake sensor indicator (2C189)
z traction control switch
z yellow anti- lock brake system (ABS) warning indicator
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DIAGNOSIS AND TESTING
Anti-
Lock Control — Traction Control
Refer to Wiring Diagrams Cell 42 , Anti-
Lock Brake System for schematic and connector information.
Principles of Operation
The anti- lock-brake control module receives wheel speed readings from each anti- lock brake sensor
and processes this information to determine if an ABS event is necessary. The anti- lock brake sensor
electrically senses each tooth of the anti- lock brake sensor indicators as it passes through the anti- lock
brake sensor's magnetic field.
The anti- lock brake control module continuously monitors and compares the rotational speed of each
wheel and, when it detects an impending wheel lock, modulates brake pressure to the appropriate
brake caliper. This is accomplished by triggering the hydraulic control unit (HCU) to open and close the
appropriate solenoid valves. Once the affected wheel returns to normal speed, the anti- lock brake
control module returns the solenoid valves to their normal position, and normal (base) braking
resumes.
The anti- lock brake control module is self- monitoring. When the ignition switch is turned to the RUN
position, the anti- lock brake control module will do a preliminary electrical check, and at approximately
12 km/h (8 mph) the pump motor is turned on for approximately one half- second. Also during all
phases of operation the anti- lock brake control module (after the vehicle is in motion) checks for
correct operation of the anti- lock brake sensors. Any malfunction of the ABS will cause the ABS to shut
off and ABS warning indicator to illuminate; normal power assisted braking, however, remains.
The ABS control module has the ability to store multiple DTCs in memory.
The traction control system controls wheelspin by modulating the engine torque by communicating to
the powertrain control module (PCM) and by applying, then releasing, the appropriate brake to restore
traction when one or both drive wheels lose traction and begin to spin during acceleration.
The traction control system can be disabled by depressing the traction control switch. The traction
control system will reset and return to normal traction assist when the ignition switch is cycled or when
the traction control switch is depressed again. SECTION 206-
09B: Anti-Lock Control — Traction Control 2003 Mustang Workshop Manual Special Tool(s)
Worldwide Diagnostic System
(WDS)
418-
F224,
New Generation STAR (NGS)
Tester
418- F052, or equivalent scan
tool 73 Digital Multimeter or
equivalent
105-
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