I have been dealing with the infamous CPU 2 malfunction since i bought my FD a few years ago, i took it out and disassembled it to look for any burnt traces or resistors but it looked spotless on the inside, i also reached out to Michael Gagne about potential repair and he said he doesn't work on them due to their tendency to simply continue to fail. The weirdest part for me is that the CPU 2 will intermittently start to function normally again at random startups then as soon as the car sits and cools down for a few hours goes right back to clicking. i have provided 2 videos of the functioning and not functioning state, does anyone have any ideas why it will work sometimes and not work after the car cools down/sits? (symptoms are the usual, clicking sound, blinking seatbelt light, and pulsing window function)

 

Did you ever find a solution for this?

 

I am also interested in this topic?

 

Only answer is finding a good replacement or going PDM

 

they're available new, is it not? I bought one some time ago. It's pricey! https://www.tascaparts.com/oem-parts...ule-fd0167560b

or Michael Gagne can repair them https://www.facebook.com/Str3atWarrior

 

So, anything aside from repair/replace is going to involve a heavy amount of wiring. PDMs are awesome and crazy expensive. Depending on which features you're keeping and/or eliminating, you could also try a Programmable Logic Controller. I'm using one in mine so far to control blinkers/hazards, and the timer for the rear defogger.
Essentially it is a set of low power relays (the one I have says to not run more than 7-8 Amps through a single circuit) and you can program each circuit. Speed of blinkers, time to remain open from initial input, delay circuit opening etc....they have em for 110V, and 220V AC, 12V and 24V DC

 

Here's the solution.


https://www.geespecautomotive.com/pr...repair-service

 

Replace ALL the capacitors on its board and it will be as good as new. Use low ESR high temp type for electrolytic ones and will be ok for another 30 years. Most CPU#2's out there have bad capacitors at this age.

 

Michael Gagne is working on making a whole new circuit board for CPU2's. It's still probably a few months off but when done should be a drop in solution.

Dale

 

is it NLA? I thought I bought one new from Mazda not long ago

 

Just checked and MazdaComp lists it as NLA.

 

interesting, mazdapartsfactor.com and tascaparts show it available, I've used these places several times with good results
maybe old stock or old info. call or email Ray Crowe is also an option