Remove the engine cover.
(Refer to Engine Mechanical System - "Engine Cover")
Remove the air cleaner assembly.
(Refer to Engine Mechanical System - "Air Cleaner")
Remove the battery and battery tray.
(Refer to Engine Electrical System - "Battery")
Disconnect the back up lamp switch connector (A) and then replace the switch.
Tightening torque :
29.4 ~ 34.3 N.m (3.0 ~ 3.5 kgf.m, 21.7 ~ 25.3 lb-ft)