2003 FORD MUSTANG lock

PINPOINT TEST G: NO MODULE/NETWORK COMMUNICATION —
SCP NETWORK z
Is the voltage indicated in either measurement zero
volts? Section 206 - 09A . For
additional information on the
anti- lock brake control module
with traction control, REFER to
Section 206 - 09B . TEST the
system for normal operation. F7 CHECK FOR SHORT TO GROUND AND POWER AT
DLC C251 — IN-LINE C140 DISCONNECTED z
Key in OFF position.
z Disconnect: In- Line C140.
z Key in ON position.
z Measure the voltage between DLC C251 Pin 7, Circuit 70
(LB/WH), harness side and C251 Pin 4, Circuit 1205
(BK); and between DLC C251 Pin 7, Circuit 70 (LB/WH),
harness side and C251 Pin 16, Circuit 1047 (LG/RD),
harness side.
z Is the voltage indicated in either measurement zero
volts? Yes
REPAIR Circuit 70 (LB/WH)
between in-
line C314 and in-
line C140. TEST the system
for normal operation.
No
REPAIR Circuit 70 (LB/WH)
between in- line C140 and the
anti-lock brake control module
C135. TEST the system for
normal operation. Test Step Result / Action to Take
G1 CHECK DIAGNOSTIC TOOL PINS FOR DAMAGE
z
Inspect diagnostic tool pins for damage.
z Are the diagnostic tool pins OK? Yes
GO to
G2 .
No
REPAIR the diagnostic tool
terminals. TEST the system for
normal operation. Klj . 14 ba
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G2 CHECK DLC C251 PINS 2 AND 10 FOR DAMAGE
z
Key in OFF position.
z Inspect the DLC C251 pins for damage.
z Are the pins OK? Yes
GO to
G3 .
No
REPAIR the DLC C251. TEST
the system for normal operation. G3 CHECK THE VEHICLE FOR THE ANTI-
LOCK BRAKE
CONTROL MODULE z
Check the vehicle for any version of the anti- lock brake
control module.
z Is the vehicle equipped with any version of the anti-
lock brake control module (with or without traction
control)? Yes
GO to
G4 .
No
GO to G7 .
G4 CHECK CIRCUIT 914 (TN/OG) AND CIRCUIT 915
(PK/LB) FOR OPEN — ANTI-LOCK BRAKE CONTROL
MODULE C135 DISCONNECTED z
Disconnect: Anti- Lock Brake Control Module C135.
z Measure the resistance between anti- lock brake control
module C135 Pin 30, Circuit 914 (TN/OG), harness
side and DLC C251 Pin 2, Circuit 914 (TN/OG),
harness side.
z Measure the resistance between anti- lock brake control
module C135 Pin 29, Circuit 915 (PK/LB), harness side
and DLC C251 Pin 10, Circuit 915 (PK/LB), harness
side.
z Are the resistances less than 5 ohms? Yes
GO to
G5 .
No
REPAIR the circuit(s) in question
between in- line C215 and DLC
C251. For additional information,
REFER to Communication Circuit Wiring Repair . TEST the
system for normal operation. G5 CHECK CIRCUIT 914 (TN/OG) AND CIRCUIT 915 Klj . 15 ba
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(PK/LB) FOR THE SOURCE OF THE CONCERN — ANTI-
LOCK BRAKE CONTROL MODULE C135 DISCONNECTED z
Key in ON position.
z Measure the voltage between DLC C251 Pin 2, Circuit
914 (TN/OG), harness side and C251 Pin 4, Circuit
1205 (BK); and between DLC C251 Pin 2, Circuit 914
(TN/OG), harness side and C251 Pin 16, Circuit 1047
(LG/RD), harness side.
z Measure the voltage between DLC C251 Pin 10,
Circuit 915 (PK/LB), harness side and C251 Pin 4,
Circuit 1205 (BK); and between DLC C251 Pin 10,
Circuit 915 (PK/LB), harness side and C251 Pin 16,
Circuit 1047 (LG/RD), harness side.
z Is the voltage zero volts for any measurement? Yes
GO to
G6 .
No
INSTALL a new anti- lock brake
control module. For additional
information on the anti- lock brake
control module without traction
control, REFER to Section 206 -
09A . For additional information
on the anti- lock brake control
module with traction control,
REFER to Section 206 - 09B .
TEST the system for normal
operation. G6 CHECK CIRCUIT 914 (TN/OG) AND CIRCUIT 915
(PK/LB) FOR THE SOURCE OF THE CONCERN — IN-LINE
C144 DISCONNECTED z
Key in OFF position.
z Disconnect: In- Line C144.
z Key in ON position.
z Measure the voltage between DLC C251 Pin 2, Circuit
914 (TN/OG), harness side and C251 Pin 4, Circuit
1205 (BK); and between DLC C251 Pin 2, Circuit 914
(TN/OG), harness side and C251 Pin 16, Circuit 1047
(LG/RD), harness side.
z Measure the voltage between DLC C251 Pin 10,
Circuit 915 (PK/LB), harness side and C251 Pin 4, Yes
GO to
G8 .
No
REPAIR the circuit(s) in question
between in- line C144 and the
anti- lock brake control module
C135. REFER to Communication Circuit Wiring Repair . TEST the
system for normal operation. Klj . 16 ba
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z
Measure the voltage between DLC C251 Pin 10,
Circuit 915 (PK/LB), harness side and C251 Pin 4,
Circuit 1205 (BK); and between DLC C251 Pin 10,
Circuit 915 (PK/LB), harness side and C251 Pin 16,
Circuit 1047 (LG/RD), harness side.
z Is the voltage zero volts for any measurement? G9 CHECK CIRCUIT 914 (TN/OG) AND CIRCUIT 915
(PK/LB) FOR THE SOURCE OF THE CONCERN — IN-LINE
C215 DISCONNECTED z
Key in OFF position.
z Disconnect: In- Line C215.
z Key in ON position.
z Measure the voltage between DLC C251 Pin 2, Circuit
914 (TN/OG), harness side and C251 Pin 4, Circuit
1205 (BK); and between DLC C251 Pin 2, Circuit 914
(TN/OG), harness side and C251 Pin 16, Circuit 1047
(LG/RD), harness side.
z Measure the voltage between DLC C251 Pin 10,
Circuit 915 (PK/LB), harness side and C251 Pin 4,
Circuit 1205 (BK); and between DLC C251 Pin 10,
Circuit 915 (PK/LB), harness side and C251 Pin 16,
Circuit 1047 (LG/RD), harness side. Yes
GO to
G10 .
No
REPAIR the circuit(s) in question
between in- line C215, in - line
C144 (if equipped with the anti-
lock brake control module), and
the PCM C175. For additional
information, REFER to
Communication Circuit Wiring Repair . TEST the system for
normal operation. Klj . 18 ba
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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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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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DIAGNOSIS AND TESTING
Anti-
Theft — Passive Anti- Theft System (PATS)
Refer to Wiring Diagrams Cell 112 , Anti-
Theft for schematic and connector information.
Refer to Wiring Diagrams Cell 60 , Instrument Cluster for schematic and connector information.
Inspection and Verification
NOTE: PATS must be reconfigured upon installment of a new instrument cluster. Refer to Section 418 -
00 .
1. Verify the customer concern by duplicating the condition.
2. Visually inspect for obvious signs of mechanical and electrical damage.
3. If the concern remains after the inspection, connect the diagnostic tool to the data link connector (DLC) located beneath the instrument panel and select the vehicle to be tested from the
diagnostic tool menu. If the diagnostic tool does not communicate with the vehicle:
zcheck that the program card is correctly installed.
SECTION 419-
01: Anti-Theft — PATS 2003 Mustang Workshop Manual Special Tool(s)
73III Automotive Meter
105-
R0057 or equivalent Worldwide Diagnostic System
(WDS)
418-
F224,
New Generation STAR (NGS)
Tester
418- F052, or equivalent
diagnostic tool
Visual Inspection Chart Mechanical Electrical
z
Ignition lock cylinder
z Encoded ignition key (PATS key)
z Use of non- encoded ignition key (key without the molded plastic
head, non- PATS key)
z Use of a non- programmed encoded ignition key z
Central junction box
fuses:
„5 (15A)
„ 21 (5A)
„ 34 (20A)
z PATS transceiver
z Connectors
z Ignition switch Klj . 1 ba
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GENERAL PROCEDURES
Key Programming —
Erase All Key Codes and Program Two
Keys
NOTE: This procedure is used when a customer needs keys programmed into the system and does
not have two programmed ignition keys available. This procedure is also useful when programmed
ignition key(s) have been lost or the ignition switch assembly has been replaced, and it is desired to
erase key(s) from the passive anti- theft system (PATS) memory.
NOTE: This procedure will erase all programmed ignition keys from the vehicle memory and the
vehicle will not start until two keys have been reprogrammed to the vehicle.
NOTE: Two PATS encoded keys with the correct mechanical cut must be available to perform this
procedure. One or both of them may be the customer's original keys.
NOTE: If additional keys are to be programmed, refer to Key Programming — Program a Key Using
Two Programmed Keys. If the remaining keys are with the customer and are not available with the
vehicle, then instruct the customer to refer to the Owners Guide under the "Programming Spare
[SecuriLock ® (North America), Safeguard ® ( U.K.) or PATS for all other markets] Keys Procedure" for
instructions on programming the remaining keys.
1. Turn the ignition switch from OFF to RUN.
2. Enter diagnostic tool. Follow the SECURITY ACCESS PROCEDURE to obtain security access.
3. From diagnostic tool menu, select IGNITION KEY CODE ERASE.
4. NOTE: Do NOT select any additional commands from this menu.
Turn the ignition switch to OFF and disconnect diagnostic tool.
5. Insert the first encoded key into the ignition lock cylinder and turn the switch to RUN for three seconds.
6. Insert the second encoded key into the ignition lock cylinder and turn the switch to RUN for three seconds.
7. The vehicle should now start with both ignition keys.
SECTION 419-
01: Anti-Theft — PATS 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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