2003 FORD MUSTANG brake

7. Remove the stoplight switch (13480) and the brake booster push rod from the brake pedal pin.
8. Remove the power brake booster nuts.
9. Remove the power brake booster (2005).
Installation 1. Follow the removal procedure in reverse order. Klj . 2 ba
32003 Mustang Workshop Manual
17. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_4464/S3B~us~en~ ...

REMOVAL AND INSTALLATION
Brake Booster —
Hydro-Boost
Removal WARNING: The power brake booster should not be carried by the accumulator, nor
should it ever be dropped on the accumulator. Check the snap ring on the accumulator for
correct seating before the power brake booster is used. The accumulator contains high-
pressure nitrogen gas and can be dangerous if mishandled.
WARNING: If the accumulator is to be disposed of, it must not be exposed to excessive
heat. Before discarding the accumulator, drill a 1.6- mm (1/16-inch) diameter hole in the end of
the accumulator can to relieve the gas pressure. Always wear safety glasses when performing
this operation.
1. With the engine off, depress the brake pedal (2455) several times to discharge the accumulator.
2. Disconnect the battery ground cable (14301). For additional information, refer to Section 414 -
01 .
3. Disconnect the fluid level sensor connector.
4. Disconnect the brake tubes.
SECTION 206-
07: Power Brake Actuation 2003 Mustang Workshop Manual Special Tool(s)
Installer Set, Teflon Seal
211-
D027 (D90P-3517- A) or
equivalent Klj . 1 ba
52003 Mustang Workshop Manual
17. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_4464/S3B~us~en~ ...

5. Disconnect the power steering return line hose (3A005).
6. Disconnect the power steering pressure lines.
7. Remove the self-
locking pin.
8. Remove the stoplight switch (13480) and the brake booster push rod from the brake pedal pin. Klj . 2 ba
52003 Mustang Workshop Manual
17. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_4464/S3B~us~en~ ...

9. Remove the power brake booster nuts.
10. Remove the power brake booster nut.
11. Remove the booster.
Installation 1. Follow the removal procedure in reverse order. zInstall new Teflon® seals on the power steering pressure fittings. Klj . 3 ba
52003 Mustang Workshop Manual
17. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_4464/S3B~us~en~ ...

z
Bleed Hydro-Boost. For additional information, refer to Hydro - Boost Bleeding in this
section.
z Bleed the brake system. For additional information, refer to Section 206 - 00 . Klj . 4 ba
52003 Mustang Workshop Manual
17. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_4464/S3B~us~en~ ...

SPECIFICATIONS
SECTION 206-
09A: Anti-Lock Control — Rear 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
12003 Mustang Workshop Manual
17. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_4464/S3B~us~en~ ...

DESCRIPTION AND OPERATION
Anti-
Lock Control
The four wheel anti- lock brake system (4WABS) consists of the following components:
z anti- lock brake control module (2C346)
z front anti- lock brake sensor (2C205)
z front anti- lock brake sensor indicator (2C182)
z hydraulic control unit (2C286)
z rear anti- lock brake sensor (2C216)
z rear anti- lock brake sensor indicator (2C189)
z yellow anti- lock brake system (ABS) warning indicator
SECTION 206-
09A: Anti-Lock Control — Rear 2003 Mustang Workshop Manual Klj . 1 ba
12003 Mustang Workshop Manual
17. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_4464/S3B~us~en~ ...

DIAGNOSIS AND TESTING
Anti-
Lock Control
Refer to Wiring Diagrams Cell 42 , Anti-
Lock Brake 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 hydraulic brake pressure to the
appropriate brake caliper. This is accomplished by the anti- lock brake control module 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. Any malfunction of
the ABS will cause the ABS to shut off and the yellow ABS warning indicator to illuminate, however,
normal power assisted braking remains.
The ABS control module has the ability to store multiple DTCs in memory.
Inspection and Verification
1. Verify the customer concern by operating the system.
2. Visually inspect for obvious signs of mechanical and electrical damage.
SECTION 206-
09A: Anti-Lock Control — Rear 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-
R0051 Klj . 1 ba
162003 Mustang Workshop Manual
17. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_4464/S3B~us~en~ ...