To replace the inflatable restraint front end sensor, turn off first the SIR system. Make sure to avoid hitting or jarring the inflatable restraint front end sensor; ensure it is securely fastened before applying power to avoid SIR deployment or personal injury. Disconnect electrical connector and remove connector position assurance (CPA) from connector. Then, unscrew the sensor bolt and take the sensor out of the vehicle. To install, clean the mounting surface of any dirt, grease, or contaminants and point the arrow on the sensor in the direction of the front of the vehicle. Mount the sensor horizontally to the radiator support and secure it with a bolt of 9 N.m (79 lb in) torque. Plug the electrical connector to the sensor, and reattach the CPA. Finally, enable the SIR system.