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.
Primary Speed Sensor, Secondary Speed Sensor
Primary Speed Sensor It is installed near the CVT fluid cooler in the transaxle case. It sends rotating speed of the primary pulley (input shaft) to the TCM as a pulse signal.
Secondary Speed Sensor It is installed near the output gear part in the transaxle case. It sends rotating speed of the secondary pulley (output shaft) to the TCM as a pulse signal. TCM converts the pulse signal to vehicle speed.
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Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.