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.
2008 Lexus IS FFACTORY OEM SERVICE PROCEDURE
Service Data
2UR-GSE STARTING - SERVICE DATA
| Starter assembly | Standard current 190 A or less at 11.5 V |
| Starter armature assembly | Standard resistance Segments - Segments Below 1 Ω Armature - Commutator 10kΩ or higher |
| Standard diameter 35.0 mm (1.378 in) Minimum diameter 34.0 mm (1.339 in) Standard undercut depth 0.7 mm (0.028 in) Minimum undercut depth 0.2 mm (0.008 in) Maximum commutator's runout 0.05 mm (0.0020 in) |
|
| Starter yoke assembly | Standard resistance Lead wire - Field coil Below 1 Ω Reid coil end - Field frame 10 kΩ or higher |
| Brush length | Standard length 15.0 mm (0.590 in) Minimum length 10.0 mm (0.394 in) |
| Starter brush holder assembly | Standard resistance Positive brush holder - Negative brush holder 10 kΩ or higher |
| Standard spring installed load 21.5 to 27.5 N (2.2 to 2.8 kgf, 4.8 to 6 2 lbf) |
|
| Starter magnetic switch assembly | Standard resistance Terminal 50 - Terminal C Below 1.0 Ω Terminal 50 - Switch body Below 2.0 Ω |
| Starter relay | 3-5.10 kΩ or higher 3-5 Below 1 Ω (when battery voltage is applied to terminals 1 and 2) |
| Starter cut relay | 3-5 10 kΩ or higher 3-5 Below 1 Ω (when battery voltage is applied to terminals 1 and 2) |
| Engine switch | Pushed 7 (SS1) - 5 (GND) Below 1 Ω Pushed 2 (SS2) - 5 (GND) Below 1 Ω Not pushed 7 (SS1) - 5 (GND) 10 kΩ or higher Not pushed 2 (SS2) - 5 (GND) 10 kΩ or higher |
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.