2003 FORD MUSTANG Workshop Manual

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Page 673 of 4378

FORD MUSTANG 2003 Workshop Manual Klj . 3 ba
32003 Mustang Workshop Manual
17. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_4464/S3B~us~en~ ...

Page 674 of 4378

FORD MUSTANG 2003 Workshop Manual 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 addi

Page 675 of 4378

FORD MUSTANG 2003 Workshop Manual 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
mee

Page 676 of 4378

FORD MUSTANG 2003 Workshop Manual 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

Page 677 of 4378

FORD MUSTANG 2003 Workshop Manual 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 cont

Page 678 of 4378

FORD MUSTANG 2003 Workshop Manual 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

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-
R0051 Klj . 1 ba
202003 Mustang Workshop Manual
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Page 679 of 4378

FORD MUSTANG 2003 Workshop Manual Inspection and Verification
1. Verify the customer concern by operating the system.
2. Visually inspect for obvious signs of mechanical and electrical damage.
3. If the concern remains after the in

Inspection and Verification
1. Verify the customer concern by operating the system.
2. Visually inspect for obvious signs of mechanical and electrical damage.
3. If the concern remains after the inspection, connect the scan tool to the data link connector (DLC) located beneath the instrument panel and select the vehicle to be tested from the scan
tool menu. If the scan tool does not communicate with the vehicle: 1. Check that the program card is correctly installed.
2. Check the connections to the vehicle.
3. Check the ignition switch position.
4. If the scan tool still does not communicate with the vehicle, refer to the scan tool manual.
5. Carry out the DATA LINK DIAGNOSTIC TEST. If the scan tool responds with: 1. CKT914, CKT915 or CKT70 = ALL ECUS NO RESP/NOT EQUIP, refer to Section 418-00.
2. NO RESP/NOT EQUIP for the anti- lock brake control module, Go To Pinpoint Test A .
3. SYSTEM PASSED, retrieve and record the continuous diagnostic trouble codes (DTCs),
erase the continuous DTCs and carry out self- test diagnostics for the anti-lock brake
control module.
6. If the DTCs retrieved are related to the concern, go to the Anti- Lock Brake Control Module
Diagnostic Trouble Code (DTC) Index to continue diagnostics.
7. If no DTCs related to the concern are retrieved, GO to Symptom Chart to continue diagnostics.
Anti-Lock Brake Control Module Diagnostic Trouble Code (DTC) Index
NOTE: If a wheel speed signal fault or a pump motor fault is detected, the yellow ABS warning
indicator cannot be reset with the key OFF and key ON method. The vehicle must be driven over 12
km/h (8 mph) for the anti- lock brake control module to do a re- check of the system before the yellow
ABS warning indicator is turned OFF. Visual Inspection Chart Mechanical Electrical
z
Low brake fluid
z Anti- lock brake sensor
z Anti- lock brake sensor indicator
z Base brake system
z Wheel bearings z
Central junction box (CJB) Fuse:
„5 (15A)
„ 15 (10A)
„ 29 (15A)
„ 33 (15A)
„ 35 (15A)
z Battery junction box (BJB) Fuse:
„ABS 1 (50A)
„ ABS 2 (20A)
z Circuitry
z Damaged or corroded connectors
z ABS warning indicator
z Loose grounds Klj . 2 ba
202003 Mustang Workshop Manual
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Page 680 of 4378

FORD MUSTANG 2003 Workshop Manual Anti-Lock Brake Control Module Diagnostic Trouble Code (DTC) Index
DTC Description Source Action
B1318 Battery Voltage Low ABS/TC Go To Pinpoint Test C .
B1342 ECU Is Defective ABS/TC INS

Anti-Lock Brake Control Module Diagnostic Trouble Code (DTC) Index
DTC Description Source Action
B1318 Battery Voltage Low ABS/TC Go To Pinpoint Test C .
B1342 ECU Is Defective ABS/TC INSTALL a new anti-
lock brake control
module; REFER to Module . REPEAT the
self- test. B1484 Brake Pedal Input Open Circuit ABS/TC Go To Pinpoint Test D .
B1596 Repair Continuous Codes ABS/TC REPAIR the DTCs retrieved.
C1095 ABS Hydraulic Pump Motor Circuit
Failure ABS/TC Go To Pinpoint Test E .
C1145 RF Anti-
Lock Brake Sensor Input
Circuit Failure ABS/TC Go To Pinpoint Test F .
C1155 LF Anti-
Lock Brake Sensor Input
Circuit Failure ABS/TC Go To Pinpoint Test F .
C1165 RR Anti-
Lock Brake Sensor Input
Circuit Failure ABS/TC Go To Pinpoint Test F .
C1175 LR Anti-
Lock Brake Sensor Input
Circuit Failure ABS/TC Go To Pinpoint Test F .
C1222 Anti-
Lock Brake Sensor Mismatch ABS/TC Go To Pinpoint Test G .
C1233 LF Anti-
Lock Brake Sensor Input
Signal Missing ABS/TC Go To Pinpoint Test H .
C1234 RF Anti-
Lock Brake Sensor Input
Signal Missing ABS/TC Go To Pinpoint Test H .
C1235 RR Anti-
Lock Brake Sensor Input
Signal Missing ABS/TC Go To Pinpoint Test H .
C1236 LR Anti-
Lock Brake Sensor Input
Signal Missing ABS/TC Go To Pinpoint Test H .
C1266 ABS Valve Power Relay Circuit
Failure ABS/TC INSTALL a new anti-
lock brake control
module; REFER to Module . REPEAT the
self- test. C1805 Mismatched PCM and/or Anti-Lock
Brake Control Module ABS/TC CLEAR the DTCs. RETRIEVE the DTCs. If
DTC C1805 is retrieved, check the PCM
and Anti- Lock Brake Control Module is for
the correct vehicle. INSTALL a new PCM or
anti-lock brake control module as
necessary. CLEAR the DTCs. REPEAT the self-test. U1009 SCP (J1850) Invalid or Missing Data
for Engine Torque ABS/TC CARRY OUT the PCM self-
test. U1027 SCP (J1850) Invalid or Missing Data
for Engine RPM ABS/TC CARRY OUT the PCM self-
test. U1059 SCP (J1850) Invalid or Missing Data
for Transmission/Transaxle/PRNDL ABS/TC CARRY OUT the PCM self-
test. U1083 SCP (J1850) Invalid or Missing Data
for Engine Systems ABS/TC CARRY OUT the PCM self-
test. U1262 SCP (J1850) Communication Bus
Fault ABS/TC REFER to
Section 418 - 00 . Klj . 3 ba
202003 Mustang Workshop Manual
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