OBD port FORD MUSTANG 2003 Workshop Manual

These two characters are chosen by the analyst to provide easily identifiable information unique to
each calibration. For example, using the number 2 to denote a two-
valve engine versus using the
number 4 to denote a four- valve engine.
Fleet Code
z 1 — HDGE/Dyno
z 2 — Fast AMA, U.S.
z 3 — ADP, U.S.
z 4 — Not assigned
z 5 — Not assigned
z 6 — Evaporative emissions
z 7 — MACAA
z 8 — On-board diagnostics (OBD)
z 9 — Not assigned
Certification Region
z 5 — U.S. fifty states
z A — U.S. federal, including altitude, may include Canada and/or Mexico
z B — U.S. California standard, includes U.S. green states
z C — Canada
z D — China
z E — European Community (Austria, Belgium, Denmark, Finland, France, Germany, Greece,
Ireland, Italy, Luxembourg, Netherlands, Portugal, Spain, Sweden and United Kingdom)
z F — Extended European Community (E plus Croatia, Czech Republic, Estonia, Hungary,
Norway, Poland, Romania, Russian Federation, Slovakia, Slovenia, Switzerland and
Yugoslavia)
z G — Gulf Cooperative Council (Bahrain, Kuwait, Oman, Qatar, Saudi Arabia and UAE)
z H — Hong Kong
z J — Japan
z K — Korea
z L — Malaysia
z M — Mexico
z N — New Zealand
z P — Australia
z Q — South America (Brazil)
z S — Singapore
z T — Taiwan
z U — South America (unleaded fuel regions)
z V — Vietnam
z X — Rest of world (ROW)
z Y — Military
z Z — Israel Revision Level (not printed on label) Klj . 15 ba
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z
prevents hydrocarbon emissions from reaching the atmosphere.
z stores fuel vapors in the evaporative emission (EVAP) canister that are generated during
vehicle operation or hot soak, or vehicle refueling, until they can be consumed by the engine.
z routes the stored fuel vapors to the engine during engine operation.
z is controlled by the powertrain control module (PCM) which uses various sensor inputs to
calculate the desired amount of purge flow. The PCM regulates the purge flow, induced by the
application of intake manifold vacuum, by varying the duty cycle applied to the EVAP canister
purge valve.
z has an evaporative emission test port for test purposes.
The fuel vapors are routed:
zfrom the fuel tank through the fuel vapor control valve and fuel vapor vent valve.
z to the EVAP canister through a vapor line.
z to the engine when the EVAP canister purge valve is opened by the PCM.
The fuel tank pressure (FTP) sensor:
zmonitors the pressure levels in the fuel tank.
z communicates the pressure reading to the PCM during the OBDII leak test.
z is located in- line above the fuel tank and is serviced as part of the fuel vapor control valve tube
assembly.
The evaporative emission canister:
zis located in the left rear quarter panel.
z contains activated carbon.
z stores fuel vapor.
The fuel tank filler cap:
zrelieves system pressure above 14 kPa (56.21 inches H
2 O).
z relieves system vacuum below 3.8 kPa (15.26 inches H
2 O).
The canister vent solenoid: zis normally open.
z seals the EVAP system for the inspection and maintenance (I/M 240) test and OBDII leak and
pressure tests.
z is mounted to the evaporative emission canister.
z is repaired as a separate item.
The evaporative emission (EVAP) canister purge valve:
zis normally closed.
z regulates purging of the EVAP canister.
z is controlled by the PCM. Klj . 2 ba
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Diagnosing an electronically controlled automatic transmission is simplified by using the following
procedures. One of the most important things to remember is that there is a definite procedure to
follow. DO NOT TAKE SHORT CUTS OR ASSUME THAT CRITICAL CHECKS OR ADJUSTMENTS
HAVE ALREADY BEEN MADE. Follow the procedures as written to avoid missing critical components
or steps. By following the diagnostic sequence, the technician will be able to diagnose and repair the
concern the first time.
On-
Board Diagnostics With Diagnostic Tool
NOTE: For detailed instruction and other diagnostic methods using the scan tool, refer to the scan tool
tester manual and the Powertrain Control/Emissions Diagnosis (PC/ED) manual. These quick tests
should be used to diagnose the powertrain control module (PCM) and should be carried out in order.
zQuick Test 1.0 - Visual Inspection
z Quick Test 2.0 - Set Up
z Quick Test 3.0 - Key On, Engine Off (KOEO)
z Quick Test 4.0 - Continuous Memory
z Quick Test 5.0 - Key On, Engine Running (KOER)
„ Special Test Mode
„ Wiggle Test
„ Output Test Mode
„ PCM Reset Mode
„ Clearing DTCs
„ OBD II Drive Cycle
z Other Scan Tool Features
For further information on other diagnostic testing features using the scan tool, refer to the Powertrain
Control/Emissions Diagnosis (PC/ED) manual. Other diagnostic methods include the following:
„Parameter Identification (PID) Access Mode
„ Freeze Frame Data Access Mode and Manual
007-
00131 or equivalent 73 III Automotive Meter
105-
R0057 or equivalent UV Leak Detector Kit
164-
R0756 or equivalent Klj . 2 ba
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