2003 FORD MUSTANG Workshop Manual

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Page 3545 of 4378

FORD MUSTANG 2003 Workshop Manual GENERAL PROCEDURES
Communication Circuit Wiring Repair
1. Disconnect the battery ground cable. For additional information, refer to Section 414- 01.
2. Strip the wires.
3. NOTE: Use rosin core mi

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FORD MUSTANG 2003 Workshop Manual 5. Position the (A) heat shrink tube over the (B) wire repair.
�zOverlap the heat shrink tube on both wires.
6. Use the heat gun to heat the repaired area until adhesive flows out both ends of the h

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FORD MUSTANG 2003 Workshop Manual Klj . 3 ba
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FORD MUSTANG 2003 Workshop Manual DIAGNOSIS AND TESTING
Module Configuration
Principles of Operation
Some modules must be programmed as part of the repair procedure. If this procedure is not followed
the module will not function c

DIAGNOSIS AND TESTING
Module Configuration
Principles of Operation
Some modules must be programmed as part of the repair procedure. If this procedure is not followed
the module will not function correctly and may set a number of DTCs, including B2477 or P1639, which
indicate that some necessary data has not been programmed into the module.
Modules that need programming should not be exchanged between vehicles. In most cases the
parameter values or settings are unique to that vehicle, and if not set correctly will cause concerns or
faults.
Some programmable parameters, such as belt minder on/off, can be changed from the factory setting
at the customer's request.
WDS will automatically attempt to retrieve the module configuration information from all modules, and
from a backup location in the powertrain control module (PCM) when vehicle ID is carried out. If the
module and the PCM do not contain correct information the diagnostic tool will either request "As Built"
data or display a list of items that you will need to manually configure. The diagnostic tool will program
the module based on the data you enter.
There are three different methods that are used for module programming:
zprogrammable module installation (PMI)
z calibration update
z programmable parameters
Some modules do not support all three methods.
Programmable Module Installation (PMI)
The programmable module installation (PMI) method is used when a new programmable module is
installed on the vehicle. It is no longer necessary to command the diagnostic tool to gather module
option content from the old module. The diagnostic tool automatically obtains any available module
option content information from the old module during the vehicle ID routine that runs when the
diagnostic tool is initially connected to the vehicle. It is important that you connect WDS to the vehicle
and allow it to identify the vehicle and obtain configuration data prior to removing any modules. Calibration Update SECTION 418-
01: Module Configuration 2003 Mustang Workshop Manual Special Tool(s)
Worldwide Diagnostic System
(WDS)
418-
F224
New Generation STAR (NGS)
Tester
418- F052 or equivalent
diagnostic tool Klj . 1 ba
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FORD MUSTANG 2003 Workshop Manual Calibration update is used to install a new calibration and strategy into a module. The updates are
usually issued to fix a concern in the module software and would normally be addressed by a technic

Calibration update is used to install a new calibration and strategy into a module. The updates are
usually issued to fix a concern in the module software and would normally be addressed by a technical
service bulletin (TSB). This method has been used by the PCM for several years. Other modules will
be adopting this strategy as well.
Programmable Parameters
This method is used to configure parameters that can be modified in service. These are typically at the
preference of the customer. Not all features controlled by the module are listed in this configuration
method. Refer to the Module Configuration Index for a list of features by system.
If a module that has been modified using programmable parameters needs to be installed, the PMI
procedure will maintain the parameters in their altered state if WDS is able to communicate with the
old module during Vehicle ID. Otherwise you may need to use programmable parameters to return
them to the altered state.
Vehicle Identification (VID) Block
Some PCMs contain a memory area called a vehicle identification (VID) block. The VID block is used
to store backup data for each programmable module, as well as, powertrain configuration information.
If the diagnostic tool cannot retrieve module option content information from the suspect module, the
diagnostic tool will attempt to extract backup information from the PCM's VID block.
The PCM VID block contains the factory settings for the configurable modules unless the PCM is
flashed with a new calibration, in which case some PCM parameters may be modified.
As-
Built Data Center
The As- Built Data Center maintains a record of the vehicle configuration in a database. The vehicle's
VIN is required to obtain this information. The As- Built Data Center records the applicable module
configurations stored in each module before the vehicle leaves the factory. The As- Built Data Center
will always reflect the original build of the vehicle as it left the factory. Only contact the As- Built Data
Center when directed to do so by the diagnostic tool.
Inspection and Verification
1. Visually inspect for obvious signs of electrical damage. Refer to the following chart:
Configurable Modules
The vehicle contains the following modules that are configurable: zgeneric electronic module (GEM) Visual Inspection
Chart Electrical
z
Wiring harness
z Connectors Klj . 2 ba
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FORD MUSTANG 2003 Workshop Manual Programmable Parameters Index
System Programmable Parameter Items
Warnings & Chimes Belt Minder Klj . 3 ba
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FORD MUSTANG 2003 Workshop Manual SPECIFICATIONS
SECTION 419-
01: Anti-Theft — PATS 2003 Mustang Workshop Manual Torque Specifications
Description Nm lb-
in Battery ground cable 10 89
Steering column opening reinforcement b

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FORD MUSTANG 2003 Workshop Manual DESCRIPTION AND OPERATION
Anti-
Theft — Passive Anti- Theft System (PATS)
The passive anti- theft system (PATS) contains the following components:
�z theft indicator
�z encoded ignition key
�z

DESCRIPTION AND OPERATION
Anti-
Theft — Passive Anti- Theft System (PATS)
The passive anti- theft system (PATS) contains the following components:
z theft indicator
z encoded ignition key
z transceiver module
z instrument cluster
z powertrain control module (PCM)
z standard corporate protocol (SCP) communication network
The PATS uses radio frequency identification technology to deter a driveaway theft. Passive means
that it does not require any activity from the user. This system is known as SecuriLock® in North
America, Safeguard® in the U.K. and PATS in continental Europe. This information can be found in
owners literature.
The PATS uses a specially encoded ignition key. Each encoded ignition key contains a permanently
installed electronic device called a transponder. Each transponder contains a unique electronic
identification code, with over 72 million billion combinations.
Each encoded ignition key must be programmed into the vehicle's instrument cluster (the instrument
cluster is also known as a hybrid electronic cluster [HEC]), before it can be used to start the engine.
There are special diagnostic procedures outlined in the workshop manual that must be carried out if
new encoded ignition keys are to be installed.
The encoded key is larger than a traditional ignition key. The key does not require batteries and should
last the life of the vehicle.
The transceiver module communicates with the encoded ignition key. This module is located behind
the steering column shroud and contains an antenna connected to a small electronics module. During
each vehicle start sequence, the transceiver module reads the encoded ignition key identification code
and sends the data to the instrument cluster.
The control functions are contained in the instrument cluster. This module carries out all of the PATS
functions such as receiving the identification code from the encoded ignition key and controlling engine
enable. The instrument cluster initiates the key interrogation sequence when the vehicle ignition switch
is turned to RUN or START.
The PATS uses the PCM to enable or disable the engine. The instrument cluster communicates with
the PCM over the SCP network in order to enable engine operation. The instrument cluster and the
PCM use sophisticated messages in order to prevent a theft. The instrument cluster and the PCM
share security data (when first installed together) that makes them a matched pair. After this security
data sharing, these modules will not function in other vehicles. The shared PCM ID is remembered
even if the battery is disconnected. The instrument cluster also stores the vehicle's key identification
code even if the battery is disconnected. There are special diagnostic procedures outlined in this
workshop manual that may be carried out if either a new instrument cluster or PCM needs to be
installed.
All elements of PATS must be functional before the engine is allowed to start. If any of the components
are not working correctly, the vehicle will not start.
PATS uses a visual theft indicator. This indicator will prove out for three seconds when the ignition SECTION 419-
01: Anti-Theft — PATS 2003 Mustang Workshop Manual Klj . 1 ba
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