Main Fan/Additional Fan Motor Operation Inspection: Notes
WARNING: This page is about a different car, the 2004 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
- Connect WDS or equivalent to DLC-2.
- Warm-up the engine.
- Access ECT PID.
- Measure voltage fan control module connector terminal B at 2-pin connector with monitoring ECT PID.