2003 FORD MUSTANG fuel

PINPOINT TEST H: THE LOW FUEL WARNING INDICATOR IS
NEVER/ALWAYS ON
PINPOINT TEST I: THE SPEEDOMETER IS INOPERATIVE Instrument Cluster in this section. TEST the system
for normal operation. Test Step Result / Action to Take
H1 CARRY OUT THE INSTRUMENT CLUSTER
WARNING LAMPS AND CHIME ACTIVE
COMMAND USING THE DIAGNOSTIC TOOL z
Key in OFF position.
z Connect the diagnostic tool.
z Key in ON position.
z Enter the following diagnostic mode on the
diagnostic tool: Instrument Cluster Active
Command.
z Select the instrument cluster WARNING
LAMPS AND CHIME active command. Trigger
the ALL LAMPS active command. Observe the
LOW FUEL warning indicator.
z Is the LOW FUEL warning indicator
illuminating? Yes
GO to
H2 .
No
GO to H3 .
H2 THE LOW FUEL GAUGE WARNING
INDICATOR IS NEVER/ALWAYS ON z
Check the fuel gauge for correct operation.
z Is the fuel gauge operating correctly? Yes
GO to
H3 .
No
Go To Pinpoint Test B .
H3 CHECK FOR CORRECT INSTRUMENT
CLUSTER OPERATION z
Disconnect all instrument cluster connectors.
z Check for:
zcorrosion
z pushed- out pins
z Connect all instrument cluster connectors and
make sure they seat correctly.
z Operate the system and verify the concern is
still present.
z Is the concern still present? Yes
INSTALL a new instrument cluster.
REFER to
Instrument Cluster in this
section. TEST the system for normal
operation.
No
The system is operating correctly at this
time. Concern may have been caused by
a loose or corroded connector. CLEAR
the DTCs. REPEAT the self-test. Test Step Result / Action to Take
I1 TEST THE INSTRUMENT
CLUSTER z
Carry out the instrument cluster
self- diagnostic mode.
z Did the gauge sweep? Yes
REFER to the Powertrain Control/Emissions Diagnosis
(PC/ED) manual.
No Klj . 22 ba
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PINPOINT TEST N: THE CHECK FUEL CAP INDICATOR IS NEVER
ON Test Step Result / Action to Take
M1 CHECK THE O/D OFF
INDICATOR OPERATION z
Key in ON position.
z Observe the O/D OFF indicator.
z Is the O/D OFF indicator
always on? Yes
GO to
M2 .
No
GO to M3 .
M2 CHECK THE INSTRUMENT
CLUSTER z
Key in OFF position.
z Disconnect: Instrument Cluster
C220a.
z Key in ON position.
z Observe the O/D OFF indicator.
z Did the indicator turn off? Yes
REFER to the Powertrain Control/Emissions Diagnosis
(PC/ED) manual.
No
GO to
M4 .
M3 CHECK THE INSTRUMENT
CLUSTER OPERATION z
Carry out the instrument cluster
self- diagnostic mode.
z Did the O/D OFF indicator
illuminate? Yes
REFER to the Powertrain Control/Emissions Diagnosis
(PC/ED) manual.
No
GO to
M4 .
M4 CHECK FOR CORRECT
INSTRUMENT CLUSTER
OPERATION z
Disconnect all instrument cluster
connectors.
z Check for:
zcorrosion
z pushed- out pins
z Connect all instrument cluster
connectors and make sure they
seat correctly.
z Operate the system and verify
the concern is still present.
z Is the concern still present? Yes
INSTALL a new instrument cluster. REFER to
Instrument Cluster
in this section. TEST the system for
normal operation.
No
The system is operating correctly at this time. Concern
may have been caused by a loose or corroded
connector. CLEAR the DTCs. REPEAT the self- test. Test Step Result / Action to Take
N1 RETREIVE AND RECORD DTCS FROM
CONTINUOUS AND ON- DEMAND SELF-TESTS—
PCM NOTE:
Once the check fuel cap indicator
does turn on, it does not turn off unless the
fuel cap has been correctly secured and the
vehicle has been driven for several minutes.
z Use recorded PCM DTCs from the
continuous and on- demand self-test.
z Are any DTCs recorded? Yes
If PCM DTC P0457, REFER to the
Powertrain Control/Emissions Diagnosis
(PC/ED) manual.
No
GO to
N2 .
N2 CARRY OUT THE INSTRUMENT CLUSTER Klj . 27 ba
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PINPOINT TEST O: THE BRAKE WARNING INDICATOR IS
NEVER/ALWAYS ON INDICATOR LAMP CONTROL III ACTIVE
COMMAND USING THE DIAGNOSTIC TOOL
z
Connect the diagnostic tool.
z Enter the following diagnostic mode on the
diagnostic tool: Instrument Cluster Active
Command.
z Select the instrument cluster INDICATOR
LAMP CONTROL III active command.
Trigger the CHECK FUEL CAP active
command ON. Observe the CHECK FUEL
CAP indicator.
z Does the CHECK FUEL CAP indicator
illuminate? Yes
REFER to the Powertrain
Control/Emissions Diagnosis (PC/ED)
manual.
No
GO to
N3 .
N3 CHECK FOR CORRECT INSTRUMENT
CLUSTER OPERATION z
Disconnect all instrument cluster connectors.
z Check for:
zcorrosion
z pushed- out pins
z Connect all instrument cluster connectors
and make sure they seat correctly.
z Operate the system and verify the concern is
still present.
z Is the concern still present? Yes
INSTALL a new instrument cluster. REFER
to
Instrument Cluster in this section. TEST
the system for normal operation.
No
The system is operating correctly at this
time. Concern may have been caused by a
loose or corroded connector. CLEAR the
DTCs. REPEAT the self- test. Test Step Result / Action to Take
O1 CHECK IF THE GEM IS RECEIVING THE CORRECT
IGNITION SWITCH STATUS CAUTION: Use the correct probe adapter(s) when
making measurements. Failure to use the correct probe
adapter(s) may damage the connector.
z Connect the diagnostic tool.
z Key in ON position.
z Enter the following diagnostic mode on the diagnostic tool:
Generic Electronic Module (GEM) PID.
z Monitor GEM PIDs IGN_KEY, IGN_S, IGN_R, and IGN_A
while cycling the ignition switch through all positions and
then removing the key from ignition switch.
z Do the PIDs agree with the ignition switch status? Yes
GO to
O2 .
No
REFER to Section 211 - 05 .
O2 DETERMINE IF GEM IS RECEIVING THE CORRECT
PARKING BRAKE INPUT z
Monitor GEM PID PRK_BRK while applying and releasing
the parking brake.
z Did the PID read ON with the parking brake applied, and
OFF with the parking brake released? Yes
GO to
O3 .
No
GO to O5 .
O3 DETERMINE IF BRAKE WARNING INDICATOR CIRCUIT IS
OPEN OR GROUNDED z
Verify that the parking brake is released.
z Is the instrument cluster BRAKE warning indicator off? Yes
GO to
O4 . Klj . 28 ba
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GENERAL PROCEDURES
Headlamp Adjustment
Headlamp Aiming
1. The headlamp aiming procedure depends on the type of beam pattern the headlamp is equipped with. Vehicles may come equipped with visual optical right (VOR), visual optical left
(VOL), or SAE only (includes sealed beam type) headlamps. To identify the headlamp beam
pattern, look on the headlamp lens. Molded in small letters on the headlamp lens is one of the
following:
zSAE
z VOR or SAE
z VOL or SAE
2. Once the headlamp beam pattern is identified, aim the headlamps using one of the following methods as applicable.
zPhotometric aimers can aim SAE, VOR and VOL type headlamps. This is the preferred
method of headlamp aiming.
z Visual or screen method aiming can be used to aim SAE, VOR and VOL type
headlamps.
z Mechanical aimers can be used only with SAE type headlamps. Lamps that can be
aimed mechanically will have three nibs molded into the lens of the lamp.
Photometric Aiming 1. For the photometric aiming procedure, refer to the appropriate photometric headlamp aimer instruction manual.
Screen Method Aiming
All headlamp types
NOTE: Horizontal aim is not necessary for VOR or VOL headlamps.
NOTE: Consult your state vehicle inspection manual for recommended tolerance ranges for visual
aiming.
NOTE: The sight shield may need to be positioned or removed for access to the adjusters.
1. Before starting headlamp adjustment: zCheck the tire inflation.
z Check that no other load is in the vehicle other than a half tank of fuel.
z Check that the headlamps are clean.
z Check for correct headlamp operation.
SECTION 417-
01: Exterior Lighting 2003 Mustang Workshop Manual Klj . 1 ba
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DIAGNOSIS AND TESTING
Communications Network
Refer to Wiring Diagrams Cell
14 , Multiplex Communication Network for schematic and connector
information.
Principles of Operation
The vehicle has two module communications networks. The standard corporate protocol (SCP) which
is an unshielded twisted pair cable (data bus plus, Circuit 914 [TN/OG] and data bus minus, Circuit 915
[PK/LB]), and the international standards organization (ISO) 9141 network which is a single wire
(Circuit 70 [LB/WH]). The diagnostic tool can connect to both networks through the data link connector
(DLC). This makes diagnosis and testing of these systems easier by allowing one smart tester to be
able to diagnose and control any module on the two networks from one connector. The DLC can be
found under the instrument panel between the steering column and the radio.
The ISO 9141 communication network does not permit inter- module communication. When the
diagnostic tool communicates to modules on the ISO 9141 communication network, the diagnostic tool
must ask for all information; the modules cannot initiate communications.
The SCP network will remain operational even with the severing of one of the bus wires.
Communications will also continue if one of the bus wires is shorted to ground or battery positive
voltage (B+) or if some, but not all, termination resistors are lost.
Unlike the SCP communication network, the ISO 9141 communication network will not function if the
wire is shorted to chassis ground or battery positive voltage (B+). Also, if one of the modules on the
ISO 9141 network loses power or shorts internally, communications to that module will fail.
The powertrain control module (PCM) is on the SCP communication network. The PCM controls the
engine for better fuel economy, emissions control, and failure mode detection and storage. Refer to
Powertrain Control/Emissions Diagnosis (PC/ED) manual Section 3 for diagnosis and testing of the
PCM.
The restraint control module (RCM) is on the ISO 9141 network. The RCM controls the deployment of
the air bags based on sensor input. For additional information, refer to Section 501 - 20B .
SECTION 418-
00: Module Communications Network 2003 Mustang Workshop Manual Special Tool(s)
73 Digital Multimeter or
equivalent
105-
R0051 Worldwide Diagnostic System
(WDS)
418-
F224,
New Generation STAR (NGS)
Tester
418- F052, or equivalent
diagnostic tool Klj . 1 ba
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z
check the connections to the vehicle.
z check the ignition switch position.
4. If the diagnostic tool still does not communicate with the vehicle, refer to the diagnostic tool manual.
5. Carry out the DATA LINK DIAGNOSTIC TEST. If diagnostic tool responds with: zCKT914, CKT915 or CKT70 = ALL ECUS NO RESP/NOT EQUIP, refer to Section 418 -
00 .
z NO RESP/NOT EQUIP for instrument cluster, go to Pinpoint Test A.
z SYSTEM PASSED, retrieve and record the continuous diagnostic trouble codes (DTCs),
erase the continuous DTCs and carry out self- test diagnostics for the instrument cluster.
6. If the DTCs retrieved are related to the concern, go to Instrument Cluster Diagnostic Trouble Code (DTC) Index to continue diagnostics.
7. If no DTCs related to the concern are retrieved, proceed to Symptom Chart to continue diagnostics.
Instrument Cluster Diagnostic Trouble Code (DTC) Index Instrument Cluster Diagnostic Trouble Code (DTC) Index DTC Description Source Action
B1202 Fuel Sender Open Circuit ICM REFER to
Section 413
- 01 .
B1204 Fuel Sender Short to Ground ICM REFER to
Section 413
- 01 .
B1213 Anti-
Theft Number of Programmed Keys is Below
Minimum ICM GO to
Pinpoint Test D .
B2103 or
B1232 Antenna Not Connected —
Defective Transceiver ICM GO to
Pinpoint Test E .
B1317 Battery Voltage High ICM REFER to
Section 414
- 00 .
B1318 Battery Voltage Low ICM REFER to
Section 414
- 00 .
B1342 ECU Is Defective ICM REFER to
Section 413
- 01 .
B1356 Ignition Run Circuit Open ICM REFER to
Section 211
- 05 .
B1364 Ignition Start Circuit Open ICM REFER to
Section 211
- 05 .
B1600 PATS Ignition Key Transponder Signal Is Not Received —
Damaged Key or Non-
PATS Key ICM GO to
Pinpoint Test F .
B1601 PATS Received Incorrect Key-Code From Ignition Key
Transponder (Unprogrammed Encoded Ignition Key) ICM GO to
Pinpoint Test G .
B1602 PATS Received Invalid Format Of Key-
Code From Ignition
Key Transponder (Partial Key Read) ICM GO to
Pinpoint Test H .
B1681 PATS Transceiver Signal Is Not Received (Not
Connected, Damaged, or Wiring) ICM GO to
Pinpoint Test I . Klj . 2 ba
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SPECIFICATIONS
SECTION 501-
14A: Handles, Locks, Latches and Mechanisms 2003 Mustang Workshop Manual General Specifications
Item Specification
Lubricants
Multi-
Purpose Grease Spray
F5AZ- 19G209- AA ESR-
M1C159- A Penetrating and Lock Lubricant
E8AZ-
19A501- B —
Torque Specifications Description Nm lb-
ft lb-
in Door latch screws 12 9 —
Luggage compartment lid screws 9 — 80
Exterior door handle nuts 9 — 80
Luggage compartment lid latch striker screws 12 9 —
Fuel tank filler door retaining screws 3 — 27
Door latch striker plate screws 25 18 —
LOCK REPAIR/REPLACEMENT SPECIFICATIONS Part Number Lock Repair Package Name
F85Z-
11582- AA Ignition Cylinder
F8ZZ-
6321990- AA Door Lock
XR32-
6343262- BA Luggage Compartment Lid
Luggage Compartment Lid, Remote
F8DZ-
5406082- AA Glove Box
F8DZ-
5421970- AA Lock Lever Kit Klj . 1 ba
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REMOVAL AND INSTALLATION
Rear Bumper Cover
Removal and Installation
1. Remove the luggage compartment trim panel covers.
2. Remove the seven rear bumper cover nuts.
3. Remove the fuel drain hose.
4. Remove the four bumper cover screws (two each side).
5. Remove the pin- type retainers and the rear bumper cover.
SECTION 501-
19: Bumpers 2003 Mustang Workshop Manual Klj . 1 ba
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