OSS Sensor 5R44E/5R55E Removal/Installation

Raise and support the vehicle.
Disconnect output shaft speed (OSS) sensor electrical connector.

Fig 1: Disconnecting Output Shaft Speed (OSS) Sensor Electrical Connector
Courtesy of MAZDA MOTORS CORP.
Remove OSS sensor.
1. Remove the OSS sensor screw.
2. Remove the OSS sensor from the transmission.
  - Inspect the OSS sensor O-ring for damage. If damaged, replace the O-ring.
Fig 2: Removing OSS Sensor
Courtesy of MAZDA MOTORS CORP.
Inspect and lubricate O-ring with petroleum jelly.
1. Install the (1) OSS sensor into the transmission.
2. Tighten the (2) OSS sensor screw.
Fig 3: Installing OSS Sensor
Courtesy of MAZDA MOTORS CORP.
Connect OSS sensor electrical connector.

Fig 4: Connecting OSS Sensor Electrical Connector
Courtesy of MAZDA MOTORS CORP.
Lower the vehicle.