Honda Accord Maintenance minder... from 1979!

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From a FBM ad:

Obviously odometer based. Bet there are little cams on the dial that trigger these lights. I'd honestly be surprised if they were LEDs-- those were rare in 1979-- probably incandescent! Also note the pre-85 MPH speedo.



accord-79.webp
 
From a FBM ad:

Obviously odometer based. Bet there are little cams on the dial that trigger these lights. I'd honestly be surprised if they were LEDs-- those were rare in 1979-- probably incandescent! Also note the pre-85 MPH speedo.



View attachment 334636
This is cool. Looks like Honda was doing oil filters every other oil change back in 79! Now that would provide some data.
 
I am trying to reverse engineer in my mind how this system could work since this is before my birth year lol. If this is cam driven there must be a linkage between the odometer and maintenance minder however many rotations (mileage) wise would trip the switch to illuminate that particular maintenance schedule. Very clever there's no wonder that Japan was always ahead of the world in Audio and electronics.
 
Interesting.

My E30 BMW had a maintenance minder that was a pub with a battery. And while mine was a 91, I believe the system was in place from the beginning of the series. So that would be early 80s.

I think the maintenance counters in my fathers mid 90s Toyota and my wife’s similar age integra were just mileage counters too.
 
From a FBM ad:

Obviously odometer based. Bet there are little cams on the dial that trigger these lights. I'd honestly be surprised if they were LEDs-- those were rare in 1979-- probably incandescent! Also note the pre-85 MPH speedo.



View attachment 334636
The Japanese cars were already advancing compared to Detroit. The 1986 Acura Integra had flagship technology that rivaled the highest Corvette model.
 
I had a couple of Accords with that set up.
Each of the indicators had a tab that would reset them when you stuck the ignition key in it.
Simpler times. Kind of miss them.
 
I had a couple of Accords with that set up.
Each of the indicators had a tab that would reset them when you stuck the ignition key in it.
Simpler times. Kind of miss them.
individual tabs (slots) or did the height of the cuts on the key hit tumblers inside the tab that would reset the switch
 
individual tabs (slots) or did the height of the cuts on the key hit tumblers inside the tab that would reset the switch

There was a separate slot for each indicator.
On my '85 and '89, if memory serves, they were directly under the indicators.
The setup wasn't really all that sophisticated. The key was simply pushed in the slot.
The reset resulted from the tip of the key.

This picture of an se-i shows the slots:

https://carsandbids.com/auctions/9n41E01D/1985-honda-accord-se-i-sedan
 
I had a 1981 ‘ Datsun/Nissan Maxima 810 ‘ that had a mechanical cassette tape with similar rolling numbers as above. It also had a tiny mechanical audio disc in the dash that would voice announce that your door is ajar, fasten seat belts, fuel level is low etc. It was also available in a diesel engine version wagon, which I coveted but couldn’t afford at the time.
 
This is cool. Looks like Honda was doing oil filters every other oil change back in 79! Now that would provide some data.
They still do to this day. If you're familiar with Honda's maintenance minder codes, i.e. "A1" or "B3", "A" = change oil (only) while "B" = change oil and filter.
 
They were basically trip odometers that would change colors at the specified interval. Pushing the key into the slot felt just like pushing the trip reset button.
 
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