[DML] Re: door lock module diode D4
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[DML] Re: door lock module diode D4

Hey Steve,

when you look at the schematic you can see, that it is only
for protection against negative voltage / spikes.

I have seen many that were burned. Two reasons for that:
somebody was too stupid to install the battery correctly
it is a Zener-Diode and protects it against over voltage.
Well - then it would protect the whole car against that,
but the size of the diode doesn't allow it to be a real 
safety device...

To make it short - even if you leave it out you won't
sense a difference. It ha snothing to do with the regular
function of the module ! Use a 1N4002 or similar if you want to 
replace it, but don't spend too much time on it.

A good idea is to replace the relays, and/or do my modification
as described on the DMCNEWS and - to really protect it from 
burning the solenoids - install a circuit breaker (7...10Amps)
in the thick red wire. But one that needs to be reset manually !!!
(costs around $5)

Elvis & 6548 - 30kmiles/6 years on the same door lock module 
without any problems ! Of course with remote door lock and opener...

> Does anyone know a part number (Radio Shack or equiv) for diode D4 
of the lock module? 
> Mine is dusty grey in appearance and I have had some rare loss of 
function. From a block 
> diagram, and a schematic, I found by searching around, I see most 
of the parts of the module 
> are labeled, but not D4. So, anyone know the part part number? (ie, 
1N9119, !N2071, or 
> 1N4006, etc) ? I wonder if a diode with a greater current capacity 
would be ion order, given 
> that I plan to replace it.
> steve liggett
> vin #05983


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