2004 Mazda MPV ESFACTORY OEM SERVICE PROCEDURE

Generator Specifications

GENERATOR SPECIFICATIONS

Application Specification
Brush Length
Standard 0.89" (22.5 mm)
Minimum 0.20" (5.0 mm)
Brush Spring Force
Standard 0.92 lbs. (4.1-5.3 N)
Minimum 0.38 lbs. (1.7 N)
Generated Current (Reference)
At 1000 RPM (1) 0-90 Amps
At 2000 RPM (1) 0-105 Amps
Rotor Resistance (2) 2.5-2.9 Ohms
Standard Voltage
Ignition Switch ON
Terminal B Battery Voltage
Terminal P About 1 Volt
Terminal D About Zero Volt
At Idle (3)
Terminal B 13-15 Volts
Terminal P About 3-8 Volts
Terminal D (4)
(1) Must be greater than zero amps.
(2) Measure between slip rings.
(3) 68°F (20°C).
(4) Turn on the following electrical loads: headlights, blower motor and rear defroster and verify voltage increases.
Factory Service Tools

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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.

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