How to replace knock sensor on 2005 acura rl - 2000 Acura 3.5RL

SOURCE: Acura RL 2005 Smart Key problem

Does the car lock open with the switch on the door?  If it does not, it is not the key.  

SOURCE: How to replace rear left abs sensor acura rl 1999

lift car on ramps disconnect the sensor from behind the tire its one wire unscrew the bolt follow the wire to the connecter disconnect. and do exactly the opposite when installing. GOOD LUCK

SOURCE: How do I reset the maintenance required message on

With ignition off, press and hold "SELECT" and "RESET" buttons on dash and turn ignition to the "ON" position. Continue to hold until lamp resets.

SOURCE: 2005 Acura RL fob code reset?

turn key to on,but do not start,press and hold the lock button for one second,turn key to off position,turn the key on and off three times ending the cycle with the key in the on position,press the lock button,you will hear the door lock cycle,press lock again to set code.

SOURCE: What does the B2 code

IT is a "Time for Service Code" B2 Means its time for an oil change, Tire rotation, Cabin filter replacement and air filter replacements. Call your dealer or local Acura rep for an appointment. Hope this helps.