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That video is of a RDX and it uses a newer infotainment system than the 3rd generation TL (mine is a 2004). Also, my backlight for the screen still works, it is the NAV unit itself that is failing. After using the jumper for trying to get into the diagnostic menu, it still didn’t load up, so it needs a new NAV unit according to the official Acura manual.
I found it. The NAV unit in the trunk had the fan always running. Diagnosis was to pull into a dark garage and turn off all the lights to look for any light bleed (idea was that there was a light on pulling battery power, 400 mA at 12 volts ~ 6 watts which is the wattage of a incandescent bulb for some interior lights). I didn’t see any lights in the dark (other than the security indicator light), but did hear the fan going. I unplugged the NAV unit in the back and the power draw went down to ~20mA.
I disassembled the nav unit looking for damage or any reason why it may not be working and could not find anything. It won’t eject the DVD under any conditions, so it may be damaged or not repairable anyhow. For now, no Nav system.
Greetings,
If you have a Hands Free Link in the Odyssey, that would be the first thing I check. I am only familiar with the 3rd Gen TL, but I just found my parasitic load on that. There was a 400 mA drain on Fuse 7 (under dash) which was linked to the NAV system (in the trunk) where the fan was always running.Your fuses seem identical to the TL, and most people agree these drains are associated with a Hands Free Link constantly pulling power, even after the car is off.