Technical When is LEFT, RIGHT?

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Technical When is LEFT, RIGHT?

mprowe

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Hi Everyone,

I have recently downloaded and been examining the eLearn content for an X250. My interest is in picking up a door-open signal for my radio.

When I read the "Alarm - Functional Description E7015", it says: "The Body Computer M001 receives the doors open signal, at pins 11, 34, 33 and 35 of connector C, for the left front door, right front door, right rear swing door and right sliding side door respectively."
Next, I find the wiring Diagram (attached) which tells me that M001/Plug-C/Pin11 (white/pink) wire connects to N050 Drivers Door Lock. Now, it is highly likely that the Fiat Software is referring to Euro Spec vehicles (RHD). But I also reason that Left-Hand-Drive / Right-Hand-Drive drive is irrelevant, convention states that “hands” are referenced from the drivers seating position.

So... Off we go to get additional evidence. All the Component Location drawing that I can find showing the N050, show it on the Left of the vehicle. Additionally, in the “Central Locking – Functional Description E3040”, I read this: “The M080 central locking command control unit controls, via pins 4 and 7, the N050 left front door geared motor (pins 6 and 7), and via pins 5 and 15, the N051 right front door geared motor (pins 7 and 6).”
And later, same document: “The M001 Body Computer also receives, at pins 11 and 34 of connector C, the door open signal from the left and right front doors respectively.”

So. All clear then. The N050 is on the LEFT.

Now the crunch! I run my circuit tester between Pin 11 (M001/Plug-C) and ground and I get an open/close circuit when operating the RIGHT hand door? And from pin 34, a connection through the LEFT hand door switch.

What's going on? How do I reconcile the eLearn documentation and my finding on the vehicle?

Best regards, (a confused) Martin
 

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