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.
2004 Lexus IS 300 Base, AutomaticFACTORY OEM SERVICE PROCEDURE
On-Vehicle Repair
- REMOVE NO. 1 AND NO. 2 ENGINE UNDER COVERS
- REMOVE LH FRONT FLOOR CENTER COVER
- REMOVE NO. 1 REAR FLOOR BOARD
- DISCONNECT VEHICLE SPEED SENSOR CONNECTOR.
- REMOVE VEHICLE SPEED SENSOR
- Remove the bolt and vehicle speed sensor.
- Remove the O-ring from the vehicle speed sensor.
- INSTALL VEHICLE SPEED SENSOR
- Coat a new O-ring with ATF and install it to the vehicle speed sensor.
- Install the vehicle speed sensor to the extension housing and torque the bolt.
- Torque: 5.4 N.m (55 kgf.cm, 48 in.lbf)
- INSTALL NO. 1 REAR FLOOR BOARD
- INSTALL LH FRONT FLOOR CENTER COVER
- INSTALL NO. 1 AND NO. 2 ENGINE UNDER COVERS
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.