3v Lithium battery is located at the bottom of the NCU in the module with the fan (see picture).
Proceed as follows
- Gently push the dual fan/battery module backwards (by pressing on the pressure point) to
release the module from its front interlock (snap-in hooks).2. Tilt the dual fan/battery module forwards at an angle and pull out the plastic guide from
the Control Unit cutout.
- Remove the battery by first removing the plug connector and then taking out the battery.
- Connect the cable plug connector of the new battery to the mating connector in the dual
fan/battery module and push the battery in.
- Replace the module.
- The electrical connection between the double fan/battery module and the control unit is automatically set.