Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSMAZDA20066 I, 4D SEDAN, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCEENGINE CONTROL SYSTEMSENGINE CONTROL SYSTEM (L3)
2006 Mazda 6 i, 4D Sedan, Automatic
Engine Control System (L3)
2006 Mazda 6 i, 4D Sedan, AutomaticSECTION Engine Control System (L3)
- Control System Component Location Index
- Control System Diagram
- Control System Wiring Diagram
- Pcm Removal/Installation
- Pcm Inspection
- Using the WDS or Equivalent
- Without Using the SST
- Inspection Using An Oscilloscope (Reference)
- VSS signal
- Purge control signal
- OCV control signal
- CMP sensor signal
- CKP sensor signal
- HO2S (front) signal (California emission regulation applicable ATX model)
- Generator field coil control signal
- Generator output voltage signal
- IGT1, IGT2, IGT3, IGT4 control signals
- Fuel injection control
- HO2S (rear) heater control
- HO2S (front) heater control
- Pcm Replacement
- Clutch Pedal Position (CPP) Switch Inspection
- Neutral Switch Inspection
- Power Steering Pressure (PSP) Switch Inspection
- Variable Tumble Shutter Valve Switch Inspection
- Accelerator Pedal Position (App) Sensor Inspection
- Throttle Position (TP) Sensor Inspection
- Mass Air Flow (MAF) Sensor Inspection
- Intake Air Temperature (IAT) Sensor Inspection
- Engine Coolant Temperature (ECT) Sensor Removal/Installation
- Engine Coolant Temperature (ECT) Sensor Inspection
- Manifold Absolute Pressure (Map) Sensor Inspection
- Heated Oxygen Sensor (Ho2S) Inspection
- California Emission Regulation Applicable ATX Model
- Front HO2S current inspection
- Front HO2S heater resistance inspection
- Front HO2S circuit open/short inspection (sensor)
- Except for California Emission Regulation Applicable ATX Model
- Notes
- Front HO2S current inspection
- Front HO2S heater resistance inspection
- Front HO2S circuit open/short inspection (sensor)
- Open circuit
- Short circuit
- Rear HO2S voltage inspection
- Rear HO2S circuit open/short inspection (sensor)
- Rear HO2S heater resistance inspection
- Rear HO2S circuit open/short inspection (heater)
- Crankshaft Position (CKP) Sensor Removal/Installation
- Crankshaft Position (CKP) Sensor Inspection
- Camshaft Position (CMP) Sensor Removal/Installation
- Camshaft Position (CMP) Sensor Inspection
- Knock Sensor (KS) Removal/Installation
- Knock Sensor (KS) Inspection
- Barometric Pressure (BARO) Sensor Inspection (Vehicles Equipped With BARO Sensor Built Into Pcm)
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.