2012 Toyota Matrix Base, Automatic TransFACTORY OEM SERVICE PROCEDURE

Service Data

WARNING: This page is about a different variant/trim than selected.
Starter assembly Standard current Below 90 A at 11.5 V
Starter relay Standard resistance
3 - 5		 Below 1 Ω (battery voltage is applied to terminals 1 and 2)
10 kΩ or higher (battery voltage is not applied to terminals 1 and 2)
Acc relay Standard resistance
3 - 5		 Below 1 Ω (battery voltage is applied to terminals 1 and 2)
10 kΩ or higher (battery voltage is not applied to terminals 1 and 2)
Ignition switch Standard resistance
Between all terminals		 10 kΩ or higher
(LOCK)
Standard resistance
2 - 3		 Below 1 Ω
(ACC)
Standard resistance
2 - 3		 Below 1 Ω
(ON)
Standard resistance
2 - 4
Standard resistance
6 - 7
Standard resistance
1 - 2		 Below 1 Ω
(START)
Standard resistance
1 - 4
Standard resistance
6 - 7
Standard resistance
6 - 8
Starter armature assembly resistance Segment - Segment Below 1 Ω
Commutator - Armature coil 10 kΩ or higher
Starter armature assembly commutator diameter Standard diameter 29.0 mm (1.14 in.)
Minimum diameter 28.0 mm (1.10 in.)
Starter armature assembly commutator circle runout Standard runout 0.02 mm (0.000787 in.)
Maximum runout 0.05 mm (0.00197 in.)
Starter armature assembly commutator undercut depth Standard undercut depth 0.7 mm (0.0276 in.)
Minimum undercut depth 0.2 mm (0.00787 in.)
Starter brush holder assembly Brush length Standard length 14.4 mm (0.567in.)
Minimum length 9.0 mm (0.354 in.)
Starter brush holder assembly resistance Standard resistance
Positive brush holder - Negative brush holder		 10 kΩ or higher
Standard resistance
Positive brush holder - Positive brush holder
Negative brush holder - Negative brush holder		 Below 1 Ω
Stater magnetic switch assembly resistance Terminal 50 - Terminal C Below 1 Ω
Terminal 50 - Switch body Below 2 Ω
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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