DME No power

[78F350]

Originally Posted by Jaybu02

That would be a massive help. I am trying to follow and check the wiring back from the Power distribution to the DME.

I have diagram for the 2001 cars but as I understand it they made changes to the 2003 cars.

I didn't mean that I am willing to trace all of the circuits in the wiring diagrams or post the whole manual online. What I will do for you is look up specific connections and share parts of the wiring diagrams that you request. I'm no expert at this. I just have a big book and have disassembled a few cars.

[Jaybu02]

Originally Posted by 78F350

I didn't mean that I am willing to trace all of the circuits in the wiring diagrams or post the whole manual online. What I will do for you is look up specific connections and share parts of the wiring diagrams that you request. I'm no expert at this. I just have a big book and have disassembled a few cars.

I did some testing over the weekend. Grounds are all good including one next to dme. Looks like everything is working upto the M524 alarm box. I wonder whether putting in a different ABS pump has upset things? Picture of that wiring would be great. The pump is connected up but not the front abs sensors or brake wear sensors. Thanks for your help, appreciated.

[78F350]

Originally Posted by Jaybu02

I did some testing over the weekend. Grounds are all good including one next to dme. Looks like everything is working upto the M525 alarm box. I wonder whether putting in a different ABS pump has upset things? Picture of that wiring would be great. The pump is connected up but not the front abs sensors or brake wear sensors. Thanks for your help, appreciated.

Here's the 535 alarm box from a right hand drive 2003.


Note the [W] pin A23 connects to the DME at pin A3. That is the only connection I see directly to the DME.



I also noticed that D26 on the DME is marked as "Actuation" and connects to the DME Relay [85] through pin 4 of connector X2/3. Do you have power at the relay?



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Are you positive that you have a working and matched set of DME + Alarm (Immobilizer) module + key fob transponder?

[78F350]

Here's the ABS 5.7CAN control unit connections.