How to Replace Transmission Speed Sensor 06-12 Nissan Altima
Difficulty: Beginner · About 55 min · Nissan Altima
Replace the transmission speed sensor on a 2006–2012 Nissan Altima by removing the air box for access, then reconnecting the sensor and restoring the intake duct and airflow sensor wiring.
Tools you will need
- Socket Extensions
- 8mm Socket
- 10mm Socket
- Ratchet
Parts and supplies
- Transmission speed sensor
Steps
Remove the intake assembly
Remove the intake duct fasteners and release the air box clips. Unplug the mass airflow sensor, loosen the intake hose clamp, free the wiring retainers, and lift the air box out of its mounts.
Remove the transmission speed sensor
Locate the speed sensor at the rear of the transmission case. Unplug its electrical connector, remove the retaining bolt, and pull the sensor straight out of the bore.
Install the replacement sensor
Align the replacement sensor with its bore and seat it fully without forcing it. Install the retaining bolt and reconnect the electrical plug.
Reinstall the intake assembly
Seat the air box studs in their rubber mounts and reconnect the intake hose. Tighten the clamp, restore the wiring retainers, reconnect the airflow sensor, and reinstall the filter, lid, and duct.
Check your vehicle’s repair manual for exact specifications and fit.