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.
2001 Mazda MPV DXFACTORY OEM SERVICE PROCEDURE
Section 372 (Engine Control System (L3))
WARNING: This page is about a different car, the 2005 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
- 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) (California emission regulation applicable ATX model)
- CKP sensor signal
- CMP sensor signal
- Generator field coil control signal
- HO2S (rear) signal
- HO2S (middle) signal
- Generator Output Voltage signal
- VSS out signal
- Fuel injection signal
- HO2S (front) heater control signal
- Purge control signal
- OCV control signal
- Ignition coil signal
- Terminal voltage table (Reference) (Except for California emission regulation applicable ATX model)
- Inspection Using An Oscilloscope (Reference) (Except for California emission regulation applicable ATX model)
- 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
- Barometric Pressure (BARO) Sensor Inspection
- Manifold Absolute Pressure (Map) Sensor Inspection
- Knock Sensor (KS) Inspection
- Knock Sensor (KS) Removal/Installation
- Camshaft Position (CMP) Sensor Inspection
- Crankshaft Position (CKP) Sensor Inspection
- Crankshaft Position (CKP) Sensor Removal/Installation
- Heated Oxygen Sensor (Ho2S) Inspection
- California Emission Regulation Applicable ATX Model
- Notes
- Front HO2S current inspection
- Front HO2S heater resistance inspection
- Front HO2S circuit open/short inspection (sensor)
- Middle/rear HO2S voltage inspection
- Middle/rear HO2S circuit open/short inspection (sensor)
- Middle/rear HO2S heater resistance inspection
- Middle/rear HO2S circuit open/short inspection (heater)
- Except for California Emission Regulation Applicable ATX Model
- California Emission Regulation Applicable ATX Model
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.
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