http://www.odyclub.com/forums/showthread.php?s=f68dff7d552bbb0bd59c66d0d8be4b5b&threadid=23429
There is no back light for the clock. The clock numbers are actually LED's - there is no way to replace them - the entire clock will have to be replaced.
Original equipment part for brake light replacement on 2000 Honda Odyssey EX is: 7443 W21/5W STANLEY 12V 03U E4 2DW
Go to www.odyclub.com and search the forum for this subject. There are several good threads that descibe in detail, with pictures, how to replace the light including Radio Shack replacemnt part number as well as led replacement possiblity.
To replace the clock light in a 1999 Honda Passport, first, disconnect the vehicle's battery to ensure safety. Remove the clock assembly by carefully prying it out of the dashboard. Once removed, locate the bulb socket at the back of the clock, twist it counterclockwise to remove the old bulb, and then replace it with a new bulb of the same type. Reassemble the clock and reconnect the battery to test the new light.
To replace the clock light bulbs in a 2000 Honda Passport, first, disconnect the negative battery terminal for safety. Remove the trim panel around the dashboard clock by gently prying it off. Unscrew the clock assembly to access the bulbs, then carefully twist and remove the old bulbs. Replace them with new ones, reassemble the clock, and reconnect the battery.
Honda odessy abs light on when driving
It indicates transmissions problems. Had this happen at 103,000 km on our 2002 Honday Odyssey and had to replace the entire transmission.
This site gives step by step instructions here - http://www.marcelk.org/archives/71
Honda
remove trim, remove clock, remove clock light harness, and remove and replace clock light bulbs
The clock light is an integral part of the clock and is not replacable by itself
To replace the inner tail light assembly of a 2004 Honda Odyssey, first, open the rear hatch and locate the access panel on the side of the tail light. Remove the screws or clips holding the panel in place, then disconnect the electrical connector from the tail light assembly. Next, unscrew the tail light assembly from the vehicle and carefully pull it out. Finally, insert the new assembly, reconnect the electrical connector, secure it with screws, and replace the access panel.