ECU information required

[widdowson2008]

Another query?

Thanks for the pm Geoff.

What does FICD stand for?

Fast Idle Control Device

Thank you...................but..........what the hell does one of those do?

[widdowson2008]

And yet aother - will this ever end?
if you look at Geoffs earlier post of the circuit diagram, 2 of the fuses are shown with a double squiggly line whilst another has a single line. What is the significance of this?

[g8dhe]

Ah yes simple when you see it That's one of the acronym's I've been trying to sort out on the Index pages for the Wiring Manual.
In fact lets see what else the combined knowledge of the forum can come up with any suggestions / confirmations for;
ISC
NE sensor
PRC
TCM - Throttle Control Module ??
TNS relay
Verge
VRIS

[g8dhe]

if you look at Geoffs earlier post of the circuit diagram, 2 of the fuses are shown with a double squiggly line whilst another has a single line. What is the significance of this?

Its the physical type of fuse, the double squiggle is for the larger physical sizes like Mega (8mm) and Midi (5mm) stud sizes, whilst the single squiggle is the Mini/Standard/Maxi blade fuses by the drivers knee.

[Rhinoman]

ISC is usually an Idle Speed Controller
TCM is usually a Transmission Control Module

[g8dhe]

Yes those two make better sense! Thanks.
Anymore for anymore

[dandywarhol]

Don't know why its NE but its a crankshaft position sensor..........maybe cos its Near the Engine

[widdowson2008]

Don't know why its NE but its a crankshaft position sensor..........maybe cos its Near the Engine

Provides signal to pin 2F on the the ECU (according to the manual, the signal name is 'Engine rev signal (input)'
I think it's a revcounter - probably counting the revs of the crankshaft .

[g8dhe]

Excellent keep them coming folks

[widdowson2008]

I am going to sound like a complete anorak here but:

PRC - Pressure regulator control
TNS - Tail number sidelight
VRIS - Variable resonance intake system

These came from the WL-T service manual - page 16

[dandywarhol]

ARSE - auxilliary resistance secondary exhaust

[widdowson2008]

ARSE - auxilliary resistance secondary exhaust

[g8dhe]

Brilliant Steve, the only one now outstanding is "Verge" which looks more like a word than an acronym as its the only word translated not in capitals it appears to relate to something on petrol engine versions only on pages 36 and 40

[Rhinoman]

Diagnostic bit should be quite easy, following the way Mazda did it (through the ECU). But that will be a bonus.
What I am trying to find out is what part the ECU plays in the cooling system.

I have my ECU now, the serial link is not connected, these pins are used to control the A/T. Can you provide details on the Mazda diagnostics? It maybe that the petrol models have a link.

[widdowson2008]

Diagnostic bit should be quite easy, following the way Mazda did it (through the ECU). But that will be a bonus.
What I am trying to find out is what part the ECU plays in the cooling system.

I have my ECU now, the serial link is not connected, these pins are used to control the A/T. Can you provide details on the Mazda diagnostics? It maybe that the petrol models have a link.

Congratulations You are now the proud owner of a baby ECU.
The manual I have (and am working from) is for the 2.5 diesel model so no petrol related stuff.
Is the ECU now in your mitts for a petrol motor?
If they are different, and you need it, I may be able to get a manual for you.