94 Probe GT 2.5l, SRS error 51 - Diagnostic Module

Tiny
MMMOTLEY
  • MEMBER
  • 1994 FORD PROBE
I need to replace this module, does anyone know where it is, or have a link to instructions for replacing it?
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Tuesday, August 28th, 2007 AT 12:40 AM

7 Replies

Tiny
MMMOTLEY
  • MEMBER
Thanks! Do you know if I have to go through the dash to get to it, or can I reach it from under the hood?

Thanks again!
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Tuesday, August 28th, 2007 AT 12:49 PM
Tiny
MMMOTLEY
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Do you know if I have to disable the entire airbag system to replace this, or just disconnect the battery?

If I need to disable the system, do you know how I would do that.

Thanks again for your help!
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Tuesday, August 28th, 2007 AT 12:51 PM
Tiny
MMMOTLEY
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Ok, I found the unit - it's actually quite simple to get at (I'm glad I don't need to remove any pieces of the dash!). Now I just want to make sure that I don't need to do more than disconnect the battery before replacing it.

Thanks!
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Tuesday, August 28th, 2007 AT 1:06 PM
Tiny
MMMOTLEY
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I've been trying to get the old one out for half an hour - I see the three little bumbs on the unit, and the metal that holds onto them, but I've tried to squeeze them or depress them with a screwdriver, but the unit won't budge. Any ideas on how it's supposed to be removed?

I'm soon thinking of just disconnecting it and leaving it there and mounting the new one next to it.
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Tuesday, August 28th, 2007 AT 2:08 PM
Tiny
MMMOTLEY
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I couldn't get the old unit to slide out - even pulling it with vise grips, but did get the cables unplugged and plugged into the new unit, which I just set next to the old unit.

Then I hooked the battery back up and tried to start the car. It's now saying that my fuel cutoff is tripped, only when I went to the button in the trunk it was still depressed. I tried pushing anyway, just in case I couldnt see it that well. And it still won't start.

When I turn the key, I here the little whirr of the fuel pump, but it doesn't even try to start. I've tried pushing the fuel cutoff a few more times, but still nothing different.

It ran fine before I changed the DM unit - could I have damaged something else by just replacing it?

Thanks!
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Tuesday, August 28th, 2007 AT 3:26 PM
Tiny
MMMOTLEY
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Diconnected the bat. Again. Reconnected the old unit (which was at least conveniently still in it's bracket.), Reconnected the bat & tried again - still has the fuel cutoff switch light on, and the fuel cutoff is not tripped.

I have no idea what could be wrong. I still get the fuel pump noise but nothing else.

Also, the bat should be strong, just replaced it last month & it's been great.
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Tuesday, August 28th, 2007 AT 3:52 PM
Tiny
MMMOTLEY
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I had accidently disconnected a wire to the security system - fixed that & it started right up.

Thanks so much for all your help!
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Tuesday, August 28th, 2007 AT 9:37 PM

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