Precor Precision 400 Series Service Manual page 156

Installation
3. Snap the speed sensor assembly into the speed sensor bracket.
4. Reconnect the speed sensor interface cable to the LPCA J8 connector.
Contact Precor Customer Support at support@precor.com or 800.786.8404 with
any questions.
6 Available Replacement Procedures
Speed Sensor Assy Replacement
Page 148