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 MANUALSMAZDA1995B2300 BASE, 2D PICKUP EXTRA CABREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 65 (ENGINE CONTROLS - BASIC TESTING)IGNITION CHECKSHALL EFFECT SENSORS
1995 Mazda B2300 Base, 2D Pickup Extra Cab
Hall Effect Sensors
1995 Mazda B2300 Base, 2D Pickup Extra CabSECTION Hall Effect Sensors
WARNING: This page is about a different car, the 1995 Mazda MX-3. However, it is still accessible from the selected car via links, so may be relevant.
- Remove distributor. Remove fuel pump relay and disconnect 3-pin or 4-pin connector from distributor. This will prevent coil sparking. Turn ignition on.
- Using a voltmeter, backprobe power wire and ground wire at distributor. Voltmeter should display 12 volts. If voltage is not as specified, check ignition and ground circuits. Backprobe sensor wire at distributor. See HALL EFFECT SENSOR VOLTAGE SPECIFICATIONS table. Slowly rotate distributor shaft one turn. Voltmeter should pulse 0-5 volts 4 times (4-cylinder) or 6 times (V6).
- Backprobe sensor wire at distributor. See HALL EFFECT SENSOR VOLTAGE SPECIFICATIONS table. Slowly rotate distributor shaft one turn. Voltmeter should pulse 0-5 volts one time. If either sensor does not work as described, turn ignition off. Disconnect 6-pin connector at distributor.
- Turn ignition on. Ensure 5 volts are present at same wires which were checked in steps 2) and 3). If 5 volts are not present, check wiring and PCM. If 5 volts are present, replace distributor assembly.
HALL EFFECT SENSOR VOLTAGE SPECIFICATIONS
| Wire Color | Volts | ||
|---|---|---|---|
| Blue (Power) | 12 | ||
| Green (Sensor) | (1) 0-5 | ||
| Violet/White (Sensor) | (1) 0-5 | ||
| Black/Light Green (Ground) | 0 | ||
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.