Won't start in hot sun-91 Accord

That certainly sounds like the same problem I had. Mine was caused by
broken solder joints for the connector pins on the back of the radio.
I don't recall the exact steps, but basically you remove the radio and
disassemble sufficiently to get access to the circuit board behind the
socket where the harness plugs into the radio. Look closely at the
two rows of solder connections where the connector pins are attached
to the circuit board. . .mine were visibly broken. It's probably best
just to re-solder all of them.

Good luck, let us know how it comes out!
-Mark

 

My '93 Accord sure did. You can resolder, or spend $46 on a new one. My
mechanic simply resoldered mine. It's buried deeply under the dash.

Andrew

 

My '93 Accord sure did. You can resolder, or spend $46 on a new one. My
mechanic simply resoldered mine. It's buried deeply under the dash.

Andrew

 

They (accords) certainly do have that pesky main relay. My 90 accord
was doing the same thing. Thanks to all the nice folks that posted
before, I was able to quickly diagnose and change mine a couple of
weeks ago. Solved the problem. Yes, it is diabolically placed for
maximum irritation when attempting to remove. What were they
thinking!!

Can't comment on the component repair, I replaced. Car needed to go
off to college the next day and I didn't have time to trial and error
the repair. Kept the old one may repair and restock for the next
time one goes.

Those that post diagnostic knowledge of this type on this board are
doing a real service. This is one of those things that does not self
diagnose through the ECU and it is intermittant in nature.