Note. The descriptions and specifications contained in this service information were in effect at the time this service information was approved . Ford Motor Company reserves the right to discontinue models at any time, or change specifications or design without notice and without incurring obligation.
REPAIR TECHNIQUES
Appropriate service methods and procedures are essential for the safe, reliable operation of all motor vehicles as well as the personal safety of the individual doing the work. This service information provides general directions for performing service with tested, effective techniques. Following them will help assure reliability.
There are numerous variations in procedure, techniques, tools and parts for servicing vehicles, as well as in the skill of the individual doing the work. This service information cannot possibly anticipate all such variations and provide advice or cautions as to each. Accordingly, anyone who departs from the instructions provided in this service information must first establish that they compromise neither their personal safety nor the vehicle integrity by their choice of methods, tools or parts.
NOTE, NOTICE, CAUTION AND WARNING
As you read through this service information, you may come across a NOTE, NOTICE, CAUTION or WARNING. Each one is there for a specific purpose. A NOTE calls attention to unique, additional or essential information related to the subject procedure. A NOTICE identifies a hazard that could damage the vehicle or property. A CAUTION identifies a hazard that could result in minor personal injury to yourself or others. A WARNING identifies a hazard that could result in severe personal injury or death to yourself or others. Some general WARNINGS that you should follow when you work on a vehicle are listed below.
- ALWAYS WEAR SAFETY GLASSES FOR EYE PROTECTION.
- KEEP SOLVENTS AWAY FROM IGNITION SOURCES. SOLVENTS MAY BE FLAMMABLE AND COULD IGNITE OR EXPLODE IF NOT HANDLED CORRECTLY.
- USE SAFETY STANDS WHENEVER A PROCEDURE REQUIRES YOU TO BE UNDER THE VEHICLE.
- MAKE SURE THAT THE IGNITION SWITCH IS ALWAYS IN THE OFF POSITION, UNLESS OTHERWISE REQUIRED BY THE PROCEDURE.
- SET THE PARKING BRAKE WHEN WORKING ON THE VEHICLE. IF YOU HAVE AN AUTOMATIC TRANSMISSION, SET IN PARK UNLESS INSTRUCTED OTHERWISE FOR A SPECIFIC OPERATION. IF YOU HAVE A MANUAL TRANSMISSION, IT SHOULD BE IN REVERSE (ENGINE OFF) OR NEUTRAL (ENGINE ON) UNLESS INSTRUCTED OTHERWISE FOR A SPECIFIC OPERATION. PLACE WOOD BLOCKS (4" X 4" OR LARGER) OR WHEEL CHOCKS AGAINST THE FRONT AND REAR SURFACES OF THE TIRES TO HELP PREVENT THE VEHICLE FROM MOVING.
- OPERATE THE ENGINE ONLY IN A WELL-VENTILATED AREA TO AVOID THE DANGER OF CARBON MONOXIDE POISONING.
- KEEP YOURSELF AND YOUR CLOTHING AWAY FROM MOVING PARTS WHEN THE ENGINE IS RUNNING, ESPECIALLY THE DRIVE BELTS.
- TO PREVENT SERIOUS BURNS, AVOID CONTACT WITH HOT METAL PARTS SUCH AS THE RADIATOR, EXHAUST MANIFOLD, TAIL PIPE, THREE-WAY CATALYTIC CONVERTER AND MUFFLER.
- DO NOT SMOKE WHILE WORKING ON A VEHICLE.
- TO AVOID INJURY, ALWAYS REMOVE RINGS, WATCHES, LOOSE HANGING JEWELRY AND LOOSE CLOTHING BEFORE BEGINNING TO WORK ON A VEHICLE.
- WHEN IT IS NECESSARY TO WORK UNDER THE HOOD, KEEP HANDS AND OTHER OBJECTS CLEAR OF THE COOLING FAN BLADES!
Preface
This service information provides a step-by-step approach for diagnosing driveability, emission, powertrain and hybridelectric control system symptoms. Before beginning diagnosis, it may be helpful to reference any Technical Service Bulletins (TSBs) or On-line Automotive Service Information System (OASIS) information when this is available. The TSB/OASIS information is available on the Professional Technician Society (PTS) or Motorcraft® website.
This service information is used in conjunction with the Workshop Manual and appropriate Wiring Diagrams article(s) . The Workshop Manual is used to provide additional diagnostics when directed by this manual. The Workshop Manual is also used for component removal and installation information. Refer to the appropriate Wiring Diagrams for vehicle-specific wiring information and component, connector and splice location.
The following is a description of the information contained in each section of this service information.
Section 1: Description And Operation
This information contains description and operation information on powertrain control systems and components. This section is designed to give the technician a general knowledge of the powertrain control and hybridelectric system. Use this section when general information about the powertrain control system or hybridelectric system is desired.
Section 2: Diagnostic Methods
This information contains information on specific diagnostic tasks that are used during diagnosis. Descriptions of specific diagnostic methods are included, as well as detailed instructions on how to access or carry out the task.
Section 3: Symptom Charts
This information is where all diagnosis begins in the Powertrain Control Module (PCM)/Transaxle Control Module (TCM) Quick Test. If the Powertrain Control Module (PCM)/Transaxle Control Module (TCM) Quick Test is completed and no DTCs are retrieved, the technician may be directed to the No Diagnostic Trouble Code (DTC) Present Symptom Chart Index . The No Diagnostic Trouble Code (DTC) Present Symptom Chart Index contains the list of symptoms addressed in this service information, and sends the technician to the appropriate chart in the No Diagnostic Trouble Code (DTC) Present Symptom Charts . If no PCM or TCM DTCs are present and the vehicle symptom is not listed in the No Diagnostic Trouble Code (DTC) Present Symptom Chart Index, the technician should go to the appropriate Workshop Manual to continue diagnosis.
Section 4: Powertrain DTC Charts and Descriptions
This information contains the Diagnostic Trouble Code (DTC) Charts and Descriptions. These charts and descriptions are referenced if a DTC is retrieved in Section 3 . Also included in this information are the list of possible causes and diagnostic aids.
Section 5: Pinpoint Tests
This information contains all pinpoint tests. Never enter a pinpoint test unless directed there. When directed to a pinpoint test, always read the information included at the beginning of the pinpoint test.
Section 6: Reference Values
This information contains the Typical Diagnostic Reference Values charts. The technician is directed to these charts from Pinpoint Test Z in Section 5 .
How To Use The Diagnostic Procedures
- Use the information about the vehicle driveability or emission concerns to attempt to verify/re-create the symptom. Look for any vehicle modifications or aftermarket items that may contribute to the symptom. A check of any applicable TSBs or OASIS messages may be useful, if this information is available.
- Go to «POWERTRAIN CONTROL MODULE (PCM)/TRANSAXLE CONTROL MODULE (TCM) QUICK TEST»(/mercury/mariner/ii-2011-2011/remont/testing-diagnostics/#engine-controls-symptom-charts-hybrid) . Carry out the Quick Test steps. Follow any notes as directed.
- If the Powertrain Control Module (PCM)/Transaxle Control Module (TCM) Quick Test is completed, no DTCs were retrieved, and no special notes applied, go to the «NO DIAGNOSTIC TROUBLE CODE (DTC) PRESENT SYMPTOM CHART INDEX»(/mercury/mariner/ii-2011-2011/remont/testing-diagnostics/#engine-controls-symptom-charts-hybrid__no-diagnostic-trouble-codes-dtcs-present) .
- Select the symptom that best describes the vehicle symptom (for multiple symptoms select the one that is most noticeable). Go to the «NO DIAGNOSTIC TROUBLE CODE (DTC) PRESENT SYMPTOM CHARTS»(/mercury/mariner/ii-2011-2011/remont/testing-diagnostics/#engine-controls-symptom-charts-hybrid) as indicated. If no PCM or TCM DTCs are present and the vehicle symptom is not listed in the No Diagnostic Trouble Code (DTC) Present Symptom Chart Index, go to the appropriate Workshop Manual to continue diagnosis.
- The No Diagnostic Trouble Code (DTC) Present Symptom Chart contains areas to be tested for diagnosis of the vehicle symptom. The chart is arranged to place the higher probability or easiest to test items toward the top of the chart. The technician, however, is not required to follow this order due to reasons such as variations in vehicle type, vehicle repair history, or technician experience. The System/Component column indicates the areas that are tested. This column may also contain a quick system/component test. The Reference column indicates where to go for the System/Component testing. All references are to pinpoint test steps in «Section 5: Pinpoint Tests»(/mercury/mariner/ii-2011-2011/remont/testing-diagnostics/#engine-controls-introduction-hybrid__section-5-pinpoint-tests) unless noted otherwise. If referred to a pinpoint test step in this information or appropriate Workshop Manual, go to the appropriate procedures. Follow the directions given in those procedures, including directions to other tests or sections. If a damaged part is found, repair as directed. If no concern is found, and diagnosis in that area is complete, return to the «NO DIAGNOSTIC TROUBLE CODE (DTC) PRESENT SYMPTOM CHARTS»(/mercury/mariner/ii-2011-2011/remont/testing-diagnostics/#engine-controls-symptom-charts-hybrid) to continue to the next item. If a quick system/component test is in the System/Component column, the reference column indicates where to go if the test is not passed.
- If the No Diagnostic Trouble Code (DTC) Present Symptom Chart for the vehicle symptom is completed and no concern is found, return to the «NO DIAGNOSTIC TROUBLE CODE (DTC) PRESENT SYMPTOM CHART INDEX»(/mercury/mariner/ii-2011-2011/remont/testing-diagnostics/#engine-controls-symptom-charts-hybrid__no-diagnostic-trouble-codes-dtcs-present) to address the next most prominent symptom. If all diagnosis is complete and no concern is found, go to «PINPOINT TEST Z»(/mercury/mariner/ii-2011-2011/remont/testing-diagnostics/#engine-controls-pinpoint-tests-hybrid) to continue diagnosis.
- The installation of any component that affects the PCM adaptive learning strategies (idle speed, refueling event, or fuel trim) requires the reset of keep alive memory (KAM). Refer to «RESETTING THE KEEP ALIVE MEMORY (KAM)»(/mercury/mariner/ii-2011-2011/remont/testing-diagnostics/#engine-controls-diagnostic-methods-hybrid) .
- After repair, restore the vehicle by reconnecting any components and removing test equipment. Verify the vehicle is operating correctly and the original complaint is eliminated. If a DTC was present, repeat the Quick Test to verify the repair and clear the continuous DTCs from the PCM and TCM.
- If a symptom is determined to be intermittent, careful visual and physical underhood inspection of connectors, wiring harnesses, vacuum lines, and components is required. The Customer Information Worksheet may contain more detailed symptom information. Before an in-depth diagnosis begins, start the engine and wiggle wires and tap on components while listening for an indication of a concern (such as an RPM change or a relay clicking).
The information called freeze frame data can be stored when the PCM or TCM DTC is present. This information can be helpful in diagnosing intermittent concerns. Refer to FREEZE FRAME DATA , for more information.
Acronyms and Definitions
Note. This acronyms and definitions listing contains technical terms applicable to Ford Motor Company products. It is not intended to be an all-inclusive dictionary of components and their functions. If a detailed description of a particular system or component is desired, refer to the appropriate information or consult the Workshop Manual for the specific vehicle being repaired.
4V: Four valves per engine cylinder
ABS: Anti-Lock Brake System
A/C: Air Conditioning
A/CC: Air Conditioning Clutch
A/CCR: A/C Clutch Control Relay
A/CLPCS: A/C Low Pressure Cycling Switch
ACCM: Air Conditioning Compressor Module
ACCS: Air Conditioning Cycling Switch
ACET: Air Conditioning Evaporator Temperature
ACPSW: Air Conditioning Pressure Switch
ACRDV: Air Conditioning (A/C) Refrigerant Distribution Valve
A/D: Analog-to-Digital
APP: Accelerator Pedal Position
ARB: Air Resource Board
ATDC: After Top Dead Center
BARO: Barometric Pressure
BPO: Battery Power Off
BPP: Brake Pedal Position
BPS: Brake Pedal Switch
BTDC: Before Top Dead Center
CAFE: Corporate Average Fuel Economy
CAN: Controller Area Network
CCM: Comprehensive Component Monitor
CHT: Cylinder Head Temperature
CKP: Crankshaft Position
CL: Closed Loop
CMP: Camshaft Position
CO: Carbon Monoxide
CO 2 : Carbon Dioxide
COP: Coil On Plug
CT: Closed Throttle
CTO: Clean Tach Output
DC: 1. Direct Current 2. Duty Cycle
DFSO: Deceleration Fuel Shut-Off
DLC: Data Link Connector
DMM: Digital Multimeter
DOHC: Dual Overhead Cam
DTC: Diagnostic Trouble Code
ECT: Engine Coolant Temperature
EEC: Electronic Engine Control
EEGR: Electric Exhaust Gas Recirculation
EEPROM: Electrically Erasable Programmable Read-Only Memory
EGR: Exhaust Gas Recirculation
EI: Integrated Electronic Ignition
EI-LDR: Electronic Ignition-Low Data Rate
EMI: Electromagnetic Interference
EOT: Engine Oil Temperature
EPA: Environmental Protection Agency
ETB: Electronic Throttle Body
EVAP: Evaporative Emissions
EVO: Electronic Variable Orifice
FC: Fan Control
FCS: Fuel Control Solenoid
FCIL: Fuel Cap Indicator Lamp
FEAD: Front End Accessory Drive
FEPS: Flash EEPROM Programming Signal
FLI: Fuel Level Input
FMEM: Failure Mode Effects Management
FP: Fuel Pump
FTP: Fuel Tank Pressure
FWD: Front-Wheel Drive
GCU: Generator Control Unit
GPM: 1. Grams per Mile 2. Gallons per Minute
GVW: Gross Vehicle Weight
HC: Hydrocarbon
HO2S: Heated Oxygen Sensor
Hz: Hertz
IAT: Intake Air Temperature
IDS: Integrated Diagnostic System
IFS: Inertia Fuel Shut-Off
IPC: 1. Instrument Panel Cluster 2. Independent Plausibility Checker
IPS: Intake Phase Shifting
ISO: International Standards Organization
KAM: Keep Alive Memory
KOEO: Key On Engine Off
KOER: Key On Engine Running
Km/h: Kilometers per Hour
kPa: Kilopascal
LDR: Low Data Rate
MAF: Mass Air Flow
MAP: Manifold Absolute Pressure
MCU: Motor Control Unit
MECP: Motor Electronics Coolant Pump
MECT: Motor Electronics Coolant Temperature
MIL: Malfunction Indicator Lamp
NO X : Nitrogen Oxide
NVRAM: Non-Volatile Random Access Memory
OASIS: On-line Automotive Service Information System
OBD: On Board Diagnostics
OC: Oxidation Catalytic converter
OHC: Overhead Camshaft
OSC: Output State Control
OTM: Output Test Mode
PCM: Powertrain Control Module
PCV: Positive Crankcase Ventilation
PID: Parameter Identification
PIP: Profile Ignition Pickup
PPM: Parts Per Million
PSCM: Power Steering Control Module
PWM: Pulse Width Modulation
PZEV: Partial Zero Emission Vehicle
RAM: Random Access Memory
RFI: Radio Frequency Interference
ROM: Read-Only Memory
RPM: Revolutions per Minute
RWD: Rear-Wheel Drive
SAE: Society of Automotive Engineers
SFI: Sequential Multiport Fuel Injection
TB: Throttle Body
TBCM: Traction Battery Control Module
TCM: Transaxle Control Module
TDC: Top Dead Center
TGAC: Torque of Generator AC signal
TMAC: Torque of Motor AC signal
TP: Throttle Position
TR: Transmission Range
VECI: Vehicle Emission Control Information
VCM: Vehicle Communication Module
VCT: Variable Camshaft Timing
VIN: Vehicle Identification Number
VSC: Vehicle System Controller
VSS: Vehicle Speed Sensor
WAC: Wide Open Throttle A/C Cut-Off
WOT: Wide Open Throttle