Repair and Diagnosis

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• Quick Lookups
  • Common Specs & Procedures
    • Common Specifications & Procedures (Except Hybrid)
  • DTC Index
    • DTC Index (Anti-Lock Brake System - Handles, Locks, Latches & Entry Systems)
    • DTC Index (Horn System - Parking Brake System)
    • DTC Index (Powertrain - Wiper & Washer System)
  • Electrical Component Locations
    • MKZ - Component Locations
  • Fluids
  • Technical Bulletins
    • Campaigns
    • Safety Recalls
    • Technical Service Bulletins
  • Tire Fitment
  • Wiring Diagrams
    • OEM Component Harness Location Charts (Except Hybrid)
    • OEM Component Harness Location Views (Except Hybrid)
    • OEM Connector End Views - MKZ (Except Hybrid) - C100 Through C257
    • OEM Connector End Views - MKZ (Except Hybrid) - C1465 Through C1728
    • OEM Connector End Views - MKZ (Except Hybrid) - C1730 Through C2982B
    • OEM Connector End Views - MKZ (Except Hybrid) - C260 Through C652B
    • OEM Connector End Views - MKZ (Except Hybrid) - C2989 Through C3618
    • OEM Connector End Views - MKZ (Except Hybrid) - C3644 Through C9230
    • OEM Connector End Views - MKZ (Except Hybrid) - C676 Through C1463B
    • OEM Connector End Views - MKZ (Except Hybrid) - Connector Index
    • OEM Connector Repair Procedures (Except Hybrid)
    • OEM Electrical Wiring Diagram Introduction (Except Hybrid)
    • OEM Fuse And Relay Location (Except Hybrid)
    • OEM Ground Distribution (Except Hybrid)
    • OEM Vehicle Repair Location Charts (Except Hybrid)
    • OEM Wiring Diagram Symbols (Except Hybrid)
    • OEM Wiring Diagrams (Except Hybrid)
    • OEM Wiring Diagrams Component Testing (Except Hybrid)
    • System Wiring Diagrams
    • Using lemon2025'S System Wiring Diagrams
• Accessories & Equipment
  • Anti-Theft Systems
    • Handles, Locks, Latches And Entry Systems (Except Hybrid)
    • Passive Anti-Theft System (Pats) - Vehicles With: Push Button Start (Except Hybrid)
    • Perimeter Anti-Theft Alarm System (Except Hybrid)
    • Remote Convenience System (Except Hybrid)
  • Collision/Avoidance
    • Collision Warning And Collision Avoidance System (Except Hybrid)
    • Lane Departure Warning System (Except Hybrid)
    • Parking Aid System - Vehicles With: Active Park Assist (Except Hybrid)
    • Parking Aid System - Vehicles With: Parking Aid Camera (Except Hybrid)
  • Communication Devices
    • APIM Hardware Testing
    • BCM Hardware Testing (Except Hybrid)
    • FCIM Hardware Testing
    • IPC Hardware Testing
    • Module Communications Network (Except Hybrid)
    • Module Configuration System (Except Hybrid)
    • MULTIFUNCTION Electronic Modules (Except Hybrid)
  • Cruise Control Systems
    • Cruise Control System (Except Hybrid)
  • Drivers Assistance Systems - ADAS
    • Collision Warning And Collision Avoidance System (Except Hybrid)
    • Lane Departure Warning System (Except Hybrid)
    • Parking Aid System - Vehicles With: Active Park Assist (Except Hybrid)
    • Parking Aid System - Vehicles With: Parking Aid Camera (Except Hybrid)
  • Entertainment Systems
    • Information And Entertainment System - General Information - Vehicles With: THX Audio System (Except Hybrid)
    • Information And Entertainment System - General Information - Vehicles With: Touchscreen Display (Except Hybrid)
  • Exterior Lights
    • Exterior Lighting System (Except Hybrid)
  • Gauges & Instrument Panels
    • Information Center - Instrumentation, Message Center And Warning Chimes (Except Hybrid)
    • Instrument Panel And Console (Except Hybrid)
    • Instrument Panel And Interior Switches Illumination (Except Hybrid)
  • Horns
    • Horn System (Except Hybrid)
  • Infotainment
    • Information And Entertainment System - General Information - Vehicles With: THX Audio System (Except Hybrid)
    • Information And Entertainment System - General Information - Vehicles With: Touchscreen Display (Except Hybrid)
  • Interior/Exterior Trim
    • Exterior Trim And Ornamentation (Except Hybrid)
    • Interior Trim And Ornamentation (Except Hybrid)
  • Interior/Illumination Lights
    • Instrument Panel And Interior Switches Illumination (Except Hybrid)
    • Interior Lighting System (Except Hybrid)
  • Rear View Mirrors (Except Hybrid)
  • Seats
    • Seating System - Front (Except Hybrid)
    • Seating System - Rear (Except Hybrid)
  • Steering Column Switches
    • Steering Wheel And Column Electrical Components (Except Hybrid)
  • Warning Systems
    • Collision Warning And Collision Avoidance System (Except Hybrid)
    • Lane Departure Warning System (Except Hybrid)
    • Side And Rear Vision System (Except Hybrid)
  • Window Motors & Regulators
    • Windows And Glass - Glass, Frames And Mechanisms (Except Hybrid)
  • Wiper/Washer Systems
    • Wiper System And Washer System (Except Hybrid)
• Body & Frame
  • Door Locks
    • Handles, Locks, Latches And Entry Systems (Except Hybrid)
    • Passive Anti-Theft System (Pats) - Vehicles With: Push Button Start (Except Hybrid)
    • Perimeter Anti-Theft Alarm System (Except Hybrid)
    • Remote Convenience System (Except Hybrid)
  • Exterior Body Panels
    • Body Panel System - Body Closures (Except Hybrid)
    • Body Panel System - Front End Body Panels (Except Hybrid)
    • Body System - General Information (Except Hybrid)
    • Bumper System (Except Hybrid)
  • Exterior/Interior Trim
    • Exterior Trim And Ornamentation (Except Hybrid)
    • Interior Trim And Ornamentation (Except Hybrid)
  • Frames, Subframes & Crossmembers
    • Body System - Uni-Body, SUBFRAME And Mounting System (Except Hybrid)
  • Rear View Mirrors (Except Hybrid)
  • Seats
    • Seating System - Front (Except Hybrid)
    • Seating System - Rear (Except Hybrid)
  • Sun Roof/T-Top/Convertible Top
    • Sunroof - Roof Opening Panel - Vehicles With: Panoramic Roof Opening Panel (Except Hybrid)
    • Sunroof - Roof Opening Panel - Vehicles With: Roof Opening Panel (Except Hybrid)
  • Windows And Glass - Glass, Frames And Mechanisms (Except Hybrid)
• Brakes
  • Anti-Lock Brakes
    • Anti-Lock Brake System (Abs) And Stability Control (Except Hybrid)
    • Anti-Lock Brake System Component Testing (Except Hybrid)
  • Mechanical - Hydraulic
    • Brake System - General Information (Except Hybrid)
    • Front Disc Brake System (Except Hybrid)
    • Hydraulic Brake System Actuation (Except Hybrid)
    • Power Brake Actuation - Brake Booster (Except Hybrid)
    • Rear Disc Brake System (Except Hybrid)
  • Parking Brake System - Parking Brake And Actuation (Except Hybrid)
  • Traction Control
    • Anti-Lock Brake System (Abs) And Stability Control (Except Hybrid)
    • Anti-Lock Brake System Component Testing (Except Hybrid)
• Drivelines & Axles
  • Axle Shafts
    • Front Drive HALFSHAFTS (Except Hybrid)
    • Rear Drive HALFSHAFTS (Except Hybrid)
  • Differentials & Drive Axles
    • Rear Drive Axle/Differential (Except Hybrid)
  • Driveshaft & Universal Joints
    • Driveshaft (Except Hybrid)
• Electrical
  • Body Electrical
    • Voltage Converter/Inverter (Except Hybrid)
  • Charging Systems
    • Charging System - General Information (Except Hybrid)
    • Charging System (Battery, Battery Mounting And Battery Cables) (Except Hybrid)
    • Generator And Regulator (Except Hybrid)
  • MKZ - Component Locations
  • Fuses & Circuit Breakers
    • OEM Fuse And Relay Location (Except Hybrid)
  • Gauges
    • Information Center - Instrumentation, Message Center And Warning Chimes (Except Hybrid)
    • Instrument Panel And Console (Except Hybrid)
    • Instrument Panel And Interior Switches Illumination (Except Hybrid)
  • Horns
    • Horn System (Except Hybrid)
  • Motors, Switches, Relays
    • Voltage Converter/Inverter (Except Hybrid)
  • Starter
    • Starting System - 3.7L DURATEC (227KW/301PS) (Except Hybrid)
  • Wiring Diagrams
    • OEM Component Harness Location Charts (Except Hybrid)
    • OEM Component Harness Location Views (Except Hybrid)
    • OEM Connector End Views - MKZ (Except Hybrid) - C100 Through C257
    • OEM Connector End Views - MKZ (Except Hybrid) - C1465 Through C1728
    • OEM Connector End Views - MKZ (Except Hybrid) - C1730 Through C2982B
    • OEM Connector End Views - MKZ (Except Hybrid) - C260 Through C652B
    • OEM Connector End Views - MKZ (Except Hybrid) - C2989 Through C3618
    • OEM Connector End Views - MKZ (Except Hybrid) - C3644 Through C9230
    • OEM Connector End Views - MKZ (Except Hybrid) - C676 Through C1463B
    • OEM Connector End Views - MKZ (Except Hybrid) - Connector Index
    • OEM Connector Repair Procedures (Except Hybrid)
    • OEM Electrical Wiring Diagram Introduction (Except Hybrid)
    • OEM Fuse And Relay Location (Except Hybrid)
    • OEM Ground Distribution (Except Hybrid)
    • OEM Vehicle Repair Location Charts (Except Hybrid)
    • OEM Wiring Diagram Symbols (Except Hybrid)
    • OEM Wiring Diagrams (Except Hybrid)
    • OEM Wiring Diagrams Component Testing (Except Hybrid)
    • System Wiring Diagrams
    • Using lemon2025'S System Wiring Diagrams
• Engine Mechanical
  • Accessory Drive Belts
    • Accessory Drive Belt System - 3.7L DURATEC (227KW/301PS) (Except Hybrid)
  • Cooling System (Mechanical)
    • Engine Cooling System - 3.7L DURATEC (227KW/301PS) (Except Hybrid)
  • Exhaust System - 3.7L DURATEC (227KW/301PS) (Except Hybrid)
  • Fuel System
    • Fuel System - General Information - 3.7L DURATEC (227KW/301PS) (Except Hybrid)
    • Fuel Tank And Fuel Lines - 3.7L DURATEC (227KW/301PS) (Except Hybrid)
  • Mechanical
    • Engine - 3.7L DURATEC (227KW/301PS) (Except Hybrid)
    • Engine Controls - Description & Operation (Except Diesel & Hybrid)
    • Engine System - General Information (Except Hybrid)
  • Starter
    • Starting System - 3.7L DURATEC (227KW/301PS) (Except Hybrid)
• Engine Performance
  • Emissions
    • EGR Function Testing - Ford - Trucks
    • Emission Applications
    • Emission Control Abbreviations
    • State Emission Standards - Diesel
    • State Emission Standards - Gas
  • Fuel Delivery
    • Fuel System - General Information - 3.7L DURATEC (227KW/301PS) (Except Hybrid)
    • Fuel Tank And Fuel Lines - 3.7L DURATEC (227KW/301PS) (Except Hybrid)
  • Engine Ignition System - 3.7L DURATEC (227KW/301PS) (Except Hybrid)
  • Mode 6
    • Mode 6 - 2015-16 Ford - Except Diesel
    • Mode 6 - 2016 Ford - Hybrid Electric Vehicles
  • Remove, Overhaul & Install
    • Acceleration Control System (Except Hybrid)
    • Electronic Engine Controls System - 3.7L DURATEC (227KW/301PS) (Except Hybrid)
    • Engine Controls - Fuel Charging And Controls - 3.7L DURATEC (227KW/301PS) (Except Hybrid)
    • Engine Emission Control System - 3.7L DURATEC (227KW/301PS) (Except Hybrid)
    • Evaporative Emissions System - 3.7L DURATEC (227KW/301PS) (Except Hybrid)
    • Intake Air Distribution And Filtering System - 3.7L DURATEC (227KW/301PS) (Except Hybrid)
  • Specifications
    • Firing Order & Cylinder Identification
  • System
    • Engine Controls - Diagnostic Methods (Except Diesel & Hybrid)
    • Engine Controls - Introduction (Except Diesel & Hybrid)
    • Engine Controls - Pinpoint Test A: No Start Through Pinpoint Test DL: Cylinder Head Temperature (CHT) Sensor - (Except Diesel & Hybrid)
    • Engine Controls - Pinpoint Test Dm: Manifold Pressure Sensors Through Pinpoint Test FD: Brake Pedal Inputs - (Except Diesel & Hybrid)
    • Engine Controls - Pinpoint Test H: Fuel Control Through Pinpoint Test JD: Crankshaft Position (CKP) Sensor - (Except Diesel & Hybrid)
    • Engine Controls - Pinpoint Test Index - (Except Diesel & Hybrid)
    • Engine Controls - Pinpoint Test JE: Integrated Ignition Coil Pack Through Pinpoint Test Z: Intermittent - (Except Diesel & Hybrid)
    • Engine Controls - Powertrain DTC Charts & Descriptions (Except Diesel & Hybrid)
    • Engine Controls - Reference Values (Except Diesel & Hybrid)
    • Engine Controls - Symptom Charts (Except Diesel & Hybrid)
  • Testing & Diagnosis
    • Engine Controls - Diagnostic Methods (Except Diesel & Hybrid)
    • Engine Controls - Introduction (Except Diesel & Hybrid)
    • Engine Controls - Pinpoint Test A: No Start Through Pinpoint Test DL: Cylinder Head Temperature (CHT) Sensor - (Except Diesel & Hybrid)
    • Engine Controls - Pinpoint Test Dm: Manifold Pressure Sensors Through Pinpoint Test FD: Brake Pedal Inputs - (Except Diesel & Hybrid)
    • Engine Controls - Pinpoint Test H: Fuel Control Through Pinpoint Test JD: Crankshaft Position (CKP) Sensor - (Except Diesel & Hybrid)
    • Engine Controls - Pinpoint Test Index - (Except Diesel & Hybrid)
    • Engine Controls - Pinpoint Test JE: Integrated Ignition Coil Pack Through Pinpoint Test Z: Intermittent - (Except Diesel & Hybrid)
    • Engine Controls - Powertrain DTC Charts & Descriptions (Except Diesel & Hybrid)
    • Engine Controls - Reference Values (Except Diesel & Hybrid)
    • Engine Controls - Symptom Charts (Except Diesel & Hybrid)
  • Tune-Up
    • Engine Ignition System - 3.7L DURATEC (227KW/301PS) (Except Hybrid)
• General Information
  • Abbreviations
    • Commonly Used Abbreviations - General Information
    • Emission Control Abbreviations
  • Basic Trouble Shooting
    • Basic Trouble Shooting - General Information
    • Commonly Used Abbreviations - General Information
    • Emission Control Abbreviations
    • Engine Performance - Trouble Shooting - General Information
  • Brakes
    • Anti-Lock Brake Safety Precautions - General Information
    • Map - Brake Systems
    • Map - Routine Inspection Reference Guide
  • Check Lists
    • Symptom Check List Worksheet - General Information
  • Driveline/Axles
    • Drive Axle Noise Diagnosis - General Information
    • Gear Tooth Contact Patterns - General Information
    • Map - Drive Train & Transmission
    • Trouble Shooting - Clutches - General Information
  • DTC Index
    • DTC Index (Anti-Lock Brake System - Handles, Locks, Latches & Entry Systems)
    • DTC Index (Horn System - Parking Brake System)
    • DTC Index (Powertrain - Wiper & Washer System)
  • Electrical
    • Map - Electrical Systems
    • Using lemon2025'S System Wiring Diagrams
  • Engine
    • Engine Overhaul Procedures - General Information
    • General Cooling System Service - General Information
  • Engine Performance
    • Electrostatic Discharge Warning - General Information
    • Engine Performance Diagnostic Routine Outline - General Information
    • Engine Performance Safety Precautions
    • Map - Engine Performance & Maintenance
    • Parasitic Load Explanation & Test Procedures - General Information
    • State Emission Standards - Diesel
    • State Emission Standards - Gas
    • Waveforms - Injector Pattern Tutorial - General Information
  • Map - Exhaust Systems
  • Heating, Ventilation & A/C (HVAC)
    • Map - Heating, Ventilation, & Air Conditioning
  • Identification
    • CANADIAN Model Cross-Reference
  • Metric Conversions
    • Engine Displacement Conversion Table - ECAT
    • Metric Conversions
  • OEM General Information
    • Automatic Stop/Start Disable
    • General Information (Except Hybrid)
    • Identification Codes (Except Hybrid)
    • Jacking And Lifting (Except Hybrid)
    • Maintenance Schedules (Except Hybrid)
    • Noise, Vibration And Harshness (Except Hybrid)
    • OEM Color Coding
  • Reset Procedures
    • ATEQ TPMS Reset Procedure (Integrated KEYHEAD Transmitter -- IKT)
    • BARTEC TPMS Reset Procedure
    • Maintenance Reminder Light (Reset Procedures)
    • Tire Pressure Monitor Systems
  • Specifications Index
    • Common Specifications & Procedures (Except Hybrid)
  • Steering
    • Map - Steering, Suspension, Wheel Alignment, Wheels & Tires
    • Wheel Alignment Theory & Operation - General Information
  • Traction Control Disable Procedures
  • Trouble Shooting - Manual Transmission - General Information
• Heating, Ventilation & A/C (HVAC)
  • HVAC Control Systems
    • Climate Control System - General Information (Except Hybrid)
• Maintenance
  • Maintenance Reminder Light (Reset Procedures)
• Restraints
  • Air Bag, SRS
    • Supplemental Restraint System (Except Hybrid) - Description And Operation, Diagnosis And Testing Introductions, DTC And Symptom Charts
    • Supplemental Restraint System (Except Hybrid) - General Procedures, Removal And Installation
    • Supplemental Restraint System (Except Hybrid) - Pinpoint Test A - M
    • Supplemental Restraint System (Except Hybrid) - Pinpoint Test Aa - UU
    • Supplemental Restraint System (Except Hybrid) - Pinpoint Test N - Z
  • Passive Restraints
    • Safety Belt System (Except Hybrid)
• Steering
  • Manual Steering
    • Electronic Power Assist Steering Component Testing (Except Hybrid)
    • Power Steering System (Except Hybrid)
  • Power Steering
    • Electronic Power Assist Steering Component Testing (Except Hybrid)
    • Power Steering System (Except Hybrid)
  • Steering Column (Except Hybrid)
• Suspension
  • Electronic Suspension
    • Vehicle Dynamic Suspension System (Except Hybrid)
  • Front Suspension
    • Front Suspension System (Except Hybrid)
    • Suspension System - General Information (Except Hybrid)
  • Rear Suspension
    • Rear Suspension System (Except Hybrid)
    • Suspension System - General Information (Except Hybrid)
  • Wheel Alignment
    • LINCOLN Wheel Alignment Specifications - MKZ
    • Suspension System - General Information (Except Hybrid)
  • Wheels & Tire System
    • Tire Pressure Monitoring System (TPMS) (Except Hybrid)
    • Wheels And Tires System (Except Hybrid)
• Transmission
  • Automatic Trans
    • Automatic Transmission - 6F50/6F55 (Except Hybrid)
    • Automatic Transmission Cooling System - 6F50 (Except Hybrid)
    • Automatic Transmission External Controls - 6F50 (Except Hybrid)
  • Transfer Case
    • Power Transfer Unit - 6F50/6F55 (Except Hybrid)
  • Transmission Control Systems
    • Four-Wheel Drive Systems - 6F50 (Except Hybrid)
• External Pages