Scheme 1
![Scheme 1: DTC INSPECTION [PJB]](https://i.diagnostdata.com/repair/e9/e9bb7cbce6821d8f6e6ea0cfbe935e081eeea867e4bad44c6859fa280ff169e7.webp)
- Connect the WDS or equivalent to the DLC-2.
- Verify if any DTCs are displayed. If any DTCs are displayed, perform the troubleshooting according to the corresponding DTC inspection.
- Disconnect the WDS or equivalent.
Home/Mazda/3/Mazda 3 BK (2003-2006)/Repair manual/Communication Devices/On-Board Diagnostic [Engine Control System]: Overview
Contents
Wiring diagrams Section: Communication Devices- On-Board Diagnostic [Engine Control System]: Overview
- On-Board Diagnostic [Engine Control System]: Diagnosis
- Abbreviations
- Accessories Control Systems
- Accessory Drive Belts
- Airbag
- Anti-Lock/traction Control
- Automatic HVAC System
- Automatic Trans
- Auxiliary Emission Control Systems
- Axle Shafts
- Basic Trouble Shooting
- Brakes
- Cabin Air Filter
- Charging System
- Check Lists
- Clutches Manual & Hydraulic
- Communication Devices
- Cooling Fan
- Cooling System (Mechanical)
- Cruise Control Systems
- Diagnostic Connector Locations
- Differentials & Drive Axles
- Door Locks & Anti-Theft Systems
- Drive Cycles
- Driveline/axles
- DTC Index
- Electrical Component Locations
- Electronic Steering
- Electronic Suspension
- Emission Applications
- Engine
- Engine Performance
- Entertainment Systems
- Exhaust
- Exterior Body Panels
- Exterior Lights
- Exterior/interior Trim
- Fuel System
- Fuses & Circuit Breakers
- Gauges & Instrument Panels
- Heated Glass/defoggers
- Identification
- Ignition Switch/steering Lock
- Ignition System
- Lubrication System
- Manual & Power Steering
- Manual Trans
- Mechanical
- Mechanical - Hydraulic
- Metric Conversions
- Mode 6
- Navigation System
- Oem General Information
- Reset Procedures
- Restraints
- Restraints Control Systems
- Seats
- Specifications
- Starter
- Steering
- Steering Column Switches
- Sun Roof/t-Top/convertible Top
- Suspension Front
- Suspension Rear
- Testing & Diagnostics
- Traction Control Disable
- Transmission
- Wheel & Tire System
- Wheel Alignment
- Windows
- Wiper/washer Systems