SAGEM S2000-2A. Pin out required

[Ric Ochet]

As per the title, if anyone could provide me with a pin out diagram for a SAGEM S2000-2A. I would appreciate it more than you might imagine.

Thank you

[GiveMeABreak]

We will need your VIN if you want an electrical diagram of the engine ECU. Pop your VIN up here without spaces or gaps (it will be automatically masked from public on post submission), then I'll take a look at a diagram for you.

[Ric Ochet]

That would be great Marc , thank you VIN is VF3**************[VIN obfuscated, can be read by forum staff] been looking for this information for over a year, Be just my luck if a tree drops on the car tonight

[GiveMeABreak]

Ok, so unfortunately, these diagrams are structured towards the relationship between the engine ECU and a specific system when it comes to some of these Peugeot diagrams, so there isn't one overall diagram.

This diagram below (and sorry it doesn't line up well - that's just how it is) shows the connection pin numbers for each of the three main wiring connectors.

So using the first connector plug on the diagram (48V MR/10 PR) means a 48 pin Maroon connector from wiring harness 10 PR.

So most of the equipment codes are on the wiki here in ascending order and are split into sections to make it easier to locate:

https://frenchcarforum.co.uk/wiki/Elect ... ring_Codes





Here's another view of the above example showing some pin connections for the 48V NR/10 PR connector / Harness I mentioned above.




If you want a specific sub-system, like ABS or Accelerator Pedal Position switch, you'll have to let me know.

[Ric Ochet]

The problem with the car is a crank but no start issue. Had someone plug in a Snap-on OBD scanner and that confirmed what my cheap ebay one suggested. No communication with ECU. The Snap-on obviously provided a lot more detail and was able to communicate with other systems but all codes related to no comms with ECU. So it could be a fried ECU but I can't help feeling that it's a break in the wiring somewhere so my plan is to make sure it's getting the power inputs it needs and go from there. First look suggest K3 and L4 of 48V NR/10 PR. I'm guessing I should have 12v on both? Any other power supplies I'm missing? Had a search on the link you provided but couldn't find reference to MC11M or any of the MC11's looking at the second diagram are they representing earths?

[wheeler]

There are actually quite a few checks that can be done just from the second diagram.
L1, L2 & M1 as you have guessed should be good earths, load check them with a bulb, dont rely on a resistance check alone.
A1 & A2 check the resistance across these 2 wires with everything connected & you should get 60 ohms.
K3 should be an ignition switched live. L4 should also be live & likley ignition fed.
If you unplug the MAP sensor with the ignition on do you have a 5v feed here?

[Ric Ochet]

Checked for 5v at the water temp sensor and got millivolts, will check the rest asap.

[Ric Ochet]

Finally got to have a look at the car this evening but immediately ran into problems. I don't think that's the right diagram for my car Marc. Hopefully the picture will upload OK but both black and grey connectors are 32 way and it's the brown that's the 48 way on my car.

Admin Edit: Correct wiring diagrams replaced above in relevant post.

[Ric Ochet]

This isn't the best picture I know but hopefully you can make out enough markings to confirm L1, L2 and M1 are top left

[Ric Ochet]

This is the back of the relevant connector, again L1, L2 and M1 are top left

[GiveMeABreak]

OK, leave it with me - I think I probably selected the Johnson Controls ECU which was a possible option. I'll replace the diagrams shortly and tidy up the thread to reflect this.

Edit: Ok, so revised diagrams replaced above and this now shows the 48 pin as Maroon (brown), so hopefully this is the correct on now.

[Ric Ochet]

Well I've checked 32vGR H1, 32vNR H4, and 48vMR L4 and M4 with a test light and all give good earths. I'm also getting 12v at 48vMR B4. Which leaves me with the remaining three wires coming from the BM34 that run to 32vNR F2 and A4 and 32vGR F3. My initial thought was that these related to relays controlled by the ECU but the diode orientation in the BM34 made me think again. At the BM34 16vNR 3 and 8 are at 0.5v and 13 is at 12v. Checking the other ends I get the same 0.5v at 32vNR A4 and 32vGR F3 but I get only 7v at 32vNR F2. I'm assuming that 32vNR F2 should be seeing 12v and am guessing 7v isn't enough to make it do what it should suggesting a deteriorated wire feeding it. The only other thing I can think of is that another system is fed by that wire but it's a good few years since I did that level of electrics. The diagram doesn't show that wire feeding any other system but am I interpreting it correctly?

[GiveMeABreak]

Wires:
1229 is the engine control relay
1203 is the Injection ECU supply
1226 is the engine power relay control

[Ric Ochet]

Sorry Marc that doesn't mean a lot to me. What voltages should I be seeing on these wires? I was leaning towards a fried ECU until I found 32vNR F2 was only seeing 7v, just been searching youtube for videos on how to remove the pins to work back from there. It's White with a red tracer and I've got a feeling it was that one that was the culprit in another thread but I may have that wrong.

[GiveMeABreak]

I can't help you with the correct voltages on this engine, but I would expect that Peugeot Planet 2000 / Diagbox would be able to run parameter / live data tests on the injection system.

A fault will occur if the battery voltage is less than 6V or Battery voltage more than 24V: with ECU connected, Check:- Voltage present on terminal M4 of 48V.MR