The Beeper Drive Circuit Check
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2017 Honda Odyssey, 2016 Honda Odyssey, 2015 Honda Odyssey, 2014 Honda Odyssey, and 2013 Honda Odyssey. However, it is still accessible from the selected car via links, so may be relevant.
When entering the self-diagnostic mode, the front sensor beeper*, the rear sensor beeper*, and gauge control module beeper sounds five times. The beeper is built into the gauge assembly.
*: With parking and back-up sensor system