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.
1996 Lexus LS 400FACTORY OEM SERVICE PROCEDURE
Component Testing: Speedometer
Place vehicle on standard speedometer tester. Compare tester with speedometer readings. See SPEEDOMETER TEST TABLE . If vehicle speedometer readings are not within allowable range, replace speedometer.
SPEEDOMETER TEST
| Standard Indication (MPH) | Allowable Range (MPH) |
|---|---|
| 20 | 18.5-21.5 |
| 40 | 40.43 |
| 60 | 60.5-64 |
| 80 | 81-8 |
| 100 | 102-107 |
| 140 | 136-142 |
| 180 | 175-183 |
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.