Repair and Diagnosis

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• Quick Lookups
  • Common Specs & Procedures
    • Common Specs And Procedures
  • DTC Index (Engine: CPRA)
  • Electrical Component Locations
    • Electrical Component Locations -- JETTA
    • JETTA - Component Locations
  • Fluids
  • Technical Bulletins
    • Safety Recalls
    • Technical Service Bulletins
  • Tire Fitment
  • Wiring Diagrams
    • 1.8L Gasoline Engine System (OEM Wiring Diagram - CPKA, CPRA - 1 Of 2)
    • 1.8L Gasoline Engine System (OEM Wiring Diagram - CPKA, CPRA - 2 Of 2)
    • Automatic Transmission System (OEM Wiring Diagram - CPKA, CPRA, CZTA, CZDA - 6-Speed With TIPTRONIC - 1 Of 2)
    • Automatic Transmission System (OEM Wiring Diagram - CPKA, CPRA, CZTA, CZDA - 6-Speed With TIPTRONIC - 2 Of 2)
    • Cell Phone System (OEM Wiring Diagram)
    • Cell Phone System With Media-In (OEM Wiring Diagram)
    • Converter With Socket (OEM Wiring Diagram)
    • Coolant Fan (Without A/C System OEM Wiring Diagram)
    • Electrical System (Wiring - 1 Of 2)
    • Electrical System (Wiring - 2 Of 2)
    • Ground Concept (OEM Wiring Diagram)
    • Keyless Access/Locking & Starting System (OEM Wiring Diagram - CPRA, CPKA - 1 Of 2)
    • Keyless Access/Locking & Starting System (OEM Wiring Diagram - CPRA, CPKA - 2 Of 2)
    • OEM Connector End Views
    • Radio System, Navigation System (OEM Wiring Diagram) (1 Of 2)
    • Radio System, Navigation System (OEM Wiring Diagram) (2 Of 2)
    • Seat System (Seat Adjustment Without Memory Function OEM Wiring Diagrams)
    • System Wiring Diagrams
    • Using lemon2025'S System Wiring Diagrams
• Accessories & Equipment
  • Anti-Theft Systems
    • Cigarette Lighter & Socket System (Service Information)
    • Front Doors & Central Locking System (Service Information)
    • Interior Lights & Switches System (Service Information)
    • Keyless Access/Locking & Starting System (OEM Wiring Diagram - CPRA, CPKA - 1 Of 2)
    • Keyless Access/Locking & Starting System (OEM Wiring Diagram - CPRA, CPKA - 2 Of 2)
  • Communication Devices
    • Communication System (Repair Information)
    • Communication System (Service Information)
  • Cruise Control Systems
    • Electrical System (General Information - Charging System & Adaptive Cruise Control System)
    • Electrical System (Service Information - Charging System, Adaptive Cruise Control System & Starting System)
    • Wheels, Tires & Wheel Alignment (Suspension, Wheels, Steering)
  • Entertainment Systems
    • Cigarette Lighter & Socket System (Service Information)
    • Interior Lights & Switches System (Service Information)
  • Exterior Lights
    • Exterior Lights & Switches Systems (General Information)
    • Exterior Lights & Switches Systems (Service Information)
  • Gauges & Instrument Panels
    • Instruments System (Service Information)
  • Horns
    • Communication System (Service Information)
  • Infotainment
    • Cigarette Lighter & Socket System (Service Information)
    • Interior Lights & Switches System (Service Information)
  • Interior/Exterior Trim
    • Exterior Equipment System (Service Information)
    • Interior Equipment System (Service Information)
    • Interior Trim System (Service Information)
  • Interior/Illumination Lights
    • Cigarette Lighter & Socket System (Service Information)
    • Interior Lights & Switches System (Service Information)
  • Mirrors
    • Exterior Equipment System (Service Information)
  • Seats
    • Interior Equipment System (Service Information)
    • Seat Frames System (Service Information)
    • Seat Upholstery & Covers System (Service Information)
  • Window Motors & Regulators
    • Exterior Equipment System (Service Information)
    • Front Doors & Central Locking System (Service Information)
    • Glass & Window Regulators System (General & Service Information)
    • Rear Doors System (Service Information)
  • Wiper/Washer Systems
    • Wiper/Washer Systems (General & Service Information)
    • Wiper/Washer Systems (Service Information)
  • Wiring System (Data Link Connectors, Pwr Dist., Grnd Dist.)
    • Keyless Access/Locking & Starting System (OEM Wiring Diagram - CPRA, CPKA - 1 Of 2)
    • Keyless Access/Locking & Starting System (OEM Wiring Diagram - CPRA, CPKA - 2 Of 2)
• Body & Frame
  • Door Locks
    • Cigarette Lighter & Socket System (Service Information)
    • Front Doors & Central Locking System (Service Information)
    • Interior Lights & Switches System (Service Information)
    • Keyless Access/Locking & Starting System (OEM Wiring Diagram - CPRA, CPKA - 1 Of 2)
    • Keyless Access/Locking & Starting System (OEM Wiring Diagram - CPRA, CPKA - 2 Of 2)
  • Exterior Body Panels
    • Body Front System (Service Information)
    • Bumpers System (Service Information)
    • Exterior Body Panels (Hood, Lids) (Service Information) JETTA
    • Exterior Equipment System (Service Information)
    • Front Doors & Central Locking System (Service Information)
    • Rear Doors System (Service Information)
  • Exterior/Interior Trim
    • Exterior Equipment System (Service Information)
    • Interior Equipment System (Service Information)
    • Interior Trim System (Service Information)
  • Frames, Subframes & Crossmembers
    • Exterior Equipment System (Service Information)
  • Mirrors
    • Exterior Equipment System (Service Information)
  • Seats
    • Interior Equipment System (Service Information)
    • Seat Frames System (Service Information)
    • Seat Upholstery & Covers System (Service Information)
  • Sun Roof/T-Top/Convertible Top
    • Sunroof System (General & Service Information)
  • Towing Systems
    • Exterior Equipment System (Service Information)
    • Towing System (General Information From 2015)
  • Windows
    • Exterior Equipment System (Service Information)
    • Front Doors & Central Locking System (Service Information)
    • Glass & Window Regulators System (General & Service Information)
    • Rear Doors System (Service Information)
• Brakes
  • Anti-Lock Brakes
    • Antilock Brake System (Service Information)
  • Brakes Control Systems
    • Brake System (Precautions & General Information)
  • Mechanical - Hydraulic
    • Brake System (Hydraulic Components - General & Service Information)
    • Brake System (Mechanical Components - General & Service Information)
    • Brake System (Precautions & General Information)
  • Parking Brake System
    • Brake System (Mechanical Components - General & Service Information)
  • Traction Control
    • Antilock Brake System (Service Information)
• Drivelines & Axles
  • Axle Shafts
    • Front Suspension System (Service Information)
  • Differentials & Drive Axles
    • Final Drive & Differential System (Service Information - Automatic Transmission - 09G)
• Electrical
  • Body Electrical
    • Battery System (General & Technical Data)
    • Electrical System (Wiring - 1 Of 2)
    • Electrical System (Wiring - 2 Of 2)
    • Ground Concept (OEM Wiring Diagram)
    • OEM Connector End Views
  • Charging Systems
    • Battery System (General & Technical Data)
    • Electrical System (General Information - Charging System & Adaptive Cruise Control System)
    • Electrical System (Service Information - Charging System, Adaptive Cruise Control System & Starting System)
  • Component Locations
    • Electrical Component Locations -- JETTA
    • JETTA - Component Locations
  • Fuses & Circuit Breakers
    • Electrical System (Wiring - 2 Of 2)
    • Fuse And Relay Diagrams -- JETTA
  • Gauges
    • Instruments System (Service Information)
  • Horns
    • Communication System (Service Information)
  • Motors, Switches, Relays
    • Battery System (General & Technical Data)
    • Electrical System (Wiring - 1 Of 2)
    • Electrical System (Wiring - 2 Of 2)
    • Ground Concept (OEM Wiring Diagram)
    • OEM Connector End Views
  • Starter
    • Electrical System (Service Information - Charging System, Adaptive Cruise Control System & Starting System)
  • Wiring Diagrams
    • 1.8L Gasoline Engine System (OEM Wiring Diagram - CPKA, CPRA - 1 Of 2)
    • 1.8L Gasoline Engine System (OEM Wiring Diagram - CPKA, CPRA - 2 Of 2)
    • Automatic Transmission System (OEM Wiring Diagram - CPKA, CPRA, CZTA, CZDA - 6-Speed With TIPTRONIC - 1 Of 2)
    • Automatic Transmission System (OEM Wiring Diagram - CPKA, CPRA, CZTA, CZDA - 6-Speed With TIPTRONIC - 2 Of 2)
    • Cell Phone System (OEM Wiring Diagram)
    • Cell Phone System With Media-In (OEM Wiring Diagram)
    • Converter With Socket (OEM Wiring Diagram)
    • Coolant Fan (Without A/C System OEM Wiring Diagram)
    • Electrical System (Wiring - 1 Of 2)
    • Electrical System (Wiring - 2 Of 2)
    • Ground Concept (OEM Wiring Diagram)
    • Keyless Access/Locking & Starting System (OEM Wiring Diagram - CPRA, CPKA - 1 Of 2)
    • Keyless Access/Locking & Starting System (OEM Wiring Diagram - CPRA, CPKA - 2 Of 2)
    • OEM Connector End Views
    • Radio System, Navigation System (OEM Wiring Diagram) (1 Of 2)
    • Radio System, Navigation System (OEM Wiring Diagram) (2 Of 2)
    • Seat System (Seat Adjustment Without Memory Function OEM Wiring Diagrams)
    • System Wiring Diagrams
    • Using lemon2025'S System Wiring Diagrams
• Engine Mechanical
  • Auxiliary Emission Control Systems
    • Engine System (Diagnostics & General Information - CPRA - 2 Of 2)
  • Blowers, Superchargers & Turbochargers
    • Fuel Supply System (Service Information - Gasoline Engines - CNLA, CPLA, CPPA, CPKA, CPRA, CBPA, CZTA)
    • Turbocharger System (Service Information - 1.8L; 2.0L TFSI - CPLA, CPPA, CPKA, CPRA)
  • Cooling Fan
    • Engine System (Diagnostics & General Information - CPRA - 2 Of 2)
  • Cooling System (Mechanical)
    • Engine System (General Information - 1.8L & 2.0L TFSI - CPLA, CPPA, CPKA, CPRA)
  • Exhaust
    • 1.8L Gasoline Engine System (OEM Wiring Diagram - CPKA, CPRA - 1 Of 2)
    • 1.8L Gasoline Engine System (OEM Wiring Diagram - CPKA, CPRA - 2 Of 2)
    • Engine System (Diagnostics & General Information - CPRA - 2 Of 2)
    • Exhaust System & Emission Controls System (Service Information - CPLA, CPPA, CPKA, CPRA)
  • Fuel System
    • 1.8L Gasoline Engine System (OEM Wiring Diagram - CPKA, CPRA - 1 Of 2)
    • 1.8L Gasoline Engine System (OEM Wiring Diagram - CPKA, CPRA - 2 Of 2)
    • Engine System (Diagnostics & General Information - CPRA - 2 Of 2)
    • Fuel Supply System (General & Technical Data - CNLA, CPLA, CPPA, CPKA, CPRA, CBPA, CZTA)
    • MULTIPORT Fuel Injection System (Service Information - 1.8L & 2.0L - CPLA, CPPA, CPKA & CPRA)
  • Lubrication System
    • 1.8L Gasoline Engine System (OEM Wiring Diagram - CPKA, CPRA - 1 Of 2)
    • 1.8L Gasoline Engine System (OEM Wiring Diagram - CPKA, CPRA - 2 Of 2)
    • Lubrication System (Service Information - 1.8L & 2.0L TFSI - CPLA, CPPA, CPKA, CPRA)
  • Mechanical
    • 1.8L Gasoline Engine System (OEM Wiring Diagram - CPKA, CPRA - 1 Of 2)
    • 1.8L Gasoline Engine System (OEM Wiring Diagram - CPKA, CPRA - 2 Of 2)
    • Engine System (Crankshaft & Cylinder Block - Service Information - CPLA, CPPA, CPKA, CPRA)
    • Engine System (Cylinder Head & VALVETRAIN System - Service Information - 1.8L; 2.0L TFSI - CPLA, CPPA, CPKA, CPRA)
    • Engine System (General Information - 1.8L & 2.0L TFSI - CPLA, CPPA, CPKA, CPRA)
    • Engine System Assembly (Service Information - CPLA, CPPA, CPKA, CPRA)
  • Starter
    • Electrical System (Service Information - Charging System, Adaptive Cruise Control System & Starting System)
• Engine Performance
  • Emissions
    • Emission Applications
    • Emission Control Abbreviations
    • State Emission Standards - Diesel
    • State Emission Standards - Gas
  • Engine Control Systems
    • Engine System (General Information - 1.8L & 2.0L TFSI - CPLA, CPPA, CPKA, CPRA)
    • Engine System & Transmission System (Diagnostics & General Information - CPRA 2 Of 2)
    • Engine System & Transmission System (Diagnostics & General Information - CPRA) [Engine DTC Tables] [Engine Control Module --, 2015 My]
    • Engine System & Transmission System (Diagnostics & General Information - CPRA) [Engine DTC Tables] [Engine Control Module --, 2016 My]
    • Engine System & Transmission System (Diagnostics & General Information - CPRA) [Transmission DTC Tables & Diagnostic Procedures]
  • Fuel Delivery
    • 1.8L Gasoline Engine System (OEM Wiring Diagram - CPKA, CPRA - 1 Of 2)
    • 1.8L Gasoline Engine System (OEM Wiring Diagram - CPKA, CPRA - 2 Of 2)
    • Engine System (Diagnostics & General Information - CPRA - 2 Of 2)
    • Fuel Supply System (General & Technical Data - CNLA, CPLA, CPPA, CPKA, CPRA, CBPA, CZTA)
    • MULTIPORT Fuel Injection System (Service Information - 1.8L & 2.0L - CPLA, CPPA, CPKA & CPRA)
  • Ignition System
    • 1.8L Gasoline Engine System (OEM Wiring Diagram - CPKA, CPRA - 1 Of 2)
    • 1.8L Gasoline Engine System (OEM Wiring Diagram - CPKA, CPRA - 2 Of 2)
    • Engine System (Diagnostics & General Information - CPRA - 2 Of 2)
    • Ignition & Glow Plug System (Service Information - CPLA, CPPA, CPKA, CPRA)
  • Remove, Overhaul & Install
    • 1.8L Gasoline Engine System (OEM Wiring Diagram - CPKA, CPRA - 1 Of 2)
    • 1.8L Gasoline Engine System (OEM Wiring Diagram - CPKA, CPRA - 2 Of 2)
    • Engine System (Diagnostics & General Information - CPRA - 2 Of 2)
  • Specifications
    • Firing Order & Cylinder Identification
  • System
    • DTC Index (Engine: CPRA)
    • Engine System (Diagnostics & General Information - CPRA - 2 Of 2)
    • Engine System & Transmission System (Diagnostics & General Information - CPRA 2 Of 2)
    • Engine System & Transmission System (Diagnostics & General Information - CPRA) [Engine DTC Tables] [Engine Control Module --, 2015 My]
    • Engine System & Transmission System (Diagnostics & General Information - CPRA) [Engine DTC Tables] [Engine Control Module --, 2016 My]
    • Engine System & Transmission System (Diagnostics & General Information - CPRA) [Transmission DTC Tables & Diagnostic Procedures]
  • Testing & Diagnosis
    • DTC Index (Engine: CPRA)
    • Engine System (Diagnostics & General Information - CPRA - 2 Of 2)
    • Engine System & Transmission System (Diagnostics & General Information - CPRA 2 Of 2)
    • Engine System & Transmission System (Diagnostics & General Information - CPRA) [Engine DTC Tables] [Engine Control Module --, 2015 My]
    • Engine System & Transmission System (Diagnostics & General Information - CPRA) [Engine DTC Tables] [Engine Control Module --, 2016 My]
    • Engine System & Transmission System (Diagnostics & General Information - CPRA) [Transmission DTC Tables & Diagnostic Procedures]
  • Tune-Up
    • 1.8L Gasoline Engine System (OEM Wiring Diagram - CPKA, CPRA - 1 Of 2)
    • 1.8L Gasoline Engine System (OEM Wiring Diagram - CPKA, CPRA - 2 Of 2)
    • Engine System (Diagnostics & General Information - CPRA - 2 Of 2)
    • Ignition & Glow Plug System (Service Information - CPLA, CPPA, CPKA, CPRA)
  • Wiring Diagrams
    • Automatic Transmission System (OEM Wiring Diagram - CPKA, CPRA, CZTA, CZDA - 6-Speed With TIPTRONIC - 1 Of 2)
• 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
    • Noise Detection & Diagnosis System (General Information)
    • Water Leaks (General, Technical Data)
  • 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 (Engine: CPRA)
  • 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
  • Reset Procedures
    • Maintenance Reminder Light (Reset Procedures)
    • Tire Pressure Monitor Systems
  • Specifications Index
    • Common Specs And Procedures
  • 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)
  • General Servicing
    • Climate Control System (General Information - 1 Of 2)
    • Climate Control System (General Information - 2 Of 2)
    • Heating, Ventilation & Air Conditioning Systems (General & Technical Data)
    • Refrigerant R1234YF System (General & Technical Data)
    • Refrigerant R134A System (General & Technical Data)
  • HVAC Control Systems
    • Climate Control System (General Information - 1 Of 2)
    • Climate Control System (General Information - 2 Of 2)
    • Climate Control System (Service Information)
    • Heating, Ventilation & Air Conditioning Systems (General & Technical Data)
    • Heating, Ventilation & Air Conditioning Systems (General Information)
• Maintenance
  • Procedures
    • Fluid Capacity Tables (2017)
    • Maintenance Intervals
    • Maintenance Reminder Light (Reset Procedures)
    • Maintenance System (General Information)
    • Maintenance Tables
• Restraints
  • Air Bag, SRS
    • Airbags & Seat Belts System (Precautions & General Information)
    • Passenger Protection, Airbags & Seat Belts System (Service Information)
  • Passive Restraints
    • Airbags & Seat Belts System (Precautions & General Information)
    • Interior Equipment System (Service Information)
    • Passenger Protection, Airbags & Seat Belts System (Service Information)
• Steering
  • Manual Steering
    • Steering System (Service Information)
    • Suspension, Wheel & Steering System (General Technical Data)
  • Power Steering
    • Steering System (Service Information)
    • Suspension, Wheel & Steering System (General Technical Data)
  • Steering Column
    • Steering System (Service Information)
  • Steering Gear
    • Steering System (Service Information)
  • Steering Linkage
    • Steering System (Service Information)
• Suspension
  • Electronic Suspension
    • Self-Leveling Suspension System (Service Information)
  • Front Suspension System (Service Information)
  • Rear Suspension System (Service Information)
  • Suspension Control Systems
    • Suspension, Wheel & Steering System (General Technical Data)
  • Wheel Alignment
    • VOLKSWAGEN Wheel Alignment Specifications - JETTA
    • Wheels, Tires & Wheel Alignment (Suspension, Wheels, Steering)
  • Wheels & Tire System
    • Snow Chain General Information (2016-17)
    • Wheels & Tires System (Wheel And Tire Guide General Information)
    • Wheels & Tires System (Wheel And Tire Guide)
    • Wheels, Tires & Wheel Alignment (Suspension, Wheels, Steering)
• Transmission
  • Automatic Trans
    • Automatic Transmission System (General & Technical Data - 09G)
    • Automatic Transmission System (OEM Wiring Diagram - CPKA, CPRA, CZTA, CZDA - 6-Speed With TIPTRONIC - 1 Of 2)
    • Automatic Transmission System (OEM Wiring Diagram - CPKA, CPRA, CZTA, CZDA - 6-Speed With TIPTRONIC - 2 Of 2)
    • Automatic Transmission System (Torque Converter System - Service Information)
    • Controls & Housing System (Service Information - Automatic Transmission - 09G)
    • Final Drive & Differential System (Service Information - Automatic Transmission - 09G)
    • Gears & Hydraulic Controls System (General & Service Information - Automatic Transmission - 09G)
  • Clutch
    • Gears & Hydraulic Controls System (General & Service Information - Automatic Transmission - 09G)
  • Transmission Control Systems
    • Automatic Transmission System (General & Technical Data - 09G)
    • Automatic Transmission System (OEM Wiring Diagram - CPKA, CPRA, CZTA, CZDA - 6-Speed With TIPTRONIC - 1 Of 2)
    • Automatic Transmission System (OEM Wiring Diagram - CPKA, CPRA, CZTA, CZDA - 6-Speed With TIPTRONIC - 2 Of 2)
    • Controls & Housing System (Service Information - Automatic Transmission - 09G)
    • Engine System & Transmission System (Diagnostics & General Information - CPRA 2 Of 2)
    • Engine System & Transmission System (Diagnostics & General Information - CPRA) [Engine DTC Tables] [Engine Control Module --, 2015 My]
    • Engine System & Transmission System (Diagnostics & General Information - CPRA) [Engine DTC Tables] [Engine Control Module --, 2016 My]
    • Engine System & Transmission System (Diagnostics & General Information - CPRA) [Transmission DTC Tables & Diagnostic Procedures]
• External Pages