Q: How do you access and replace the back-up lamp switch on a transaxle on Honda Fit?
A: Remove the air filter housing, the battery, and battery base to access the back-up lamp switch located on top of the transaxle. Disconnect the electrical connector from the switch. The back-up light switch should only have continuity in Reverse and should be open (no continuity) in neutral and all other gears between the two terminals of the switch. If continuity is not as specified, replace the switch. Unscrew the switch and remove it from the transaxle, recovering the sealing washer. Using a new sealing washer, install the switch and tighten it securely. The remainder of installation is the reverse of removal, adding transaxle fluid as necessary.