2003 Toyota Matrix Base, FWD, AutomaticFACTORY OEM SERVICE PROCEDURE

Service Data

Starting & Charging System Specifications

Starter assy Β 
Specified current 90 A or less at 11.5 V
Circle runout Maximum 0.05 mm (0.0020 in.)
Commutator length Standard 3.3 mm (0.1299 in.)
Minimum 4.0 mm (0.1575 in.)
Brush holder length Standard 9.0 mm (0.3543 in.)
Minimum 4.0 mm (0.1575 in.)
Snap ring length Maximum 5.0 mm (0.1969 in.)
Generator assy Β 
Rotor coil resistance at 20Β°C (68Β°F) 2.1 - 2.5 Ξ©
Slip ring diameter Standard 14.2 - 14.4 mm (0.559 - 0.567 in.)
Minimum 12.8 mm (0.504 in.)
Brush exposed length Standard 9.5 - 11.5 mm (0.374 - 0.453 in.)
Minimum 1.5 mm (0.059 in.)
Battery Β 
Voltage at 20Β°C (68Β°F) 12.5 - 12.9 V
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:

  • 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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