Macchina LIN Bus Hacking

Target vehicle: 2016 Transit Connect

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There is a metal retaining clip holding the dome light into the headliner, pry at the frontmost (near the windshield) part of the module.

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The circuit board can be pried from the housing. There are 4 small PCB break-tabs that clip into retaining slots on the housing.

Once it’s free it looks like this:

 

Preliminary investigation: I’ll check voltages and signals on the 6 pins connecting the dome light module to the vehicle harness.

 

From here I’ll put together a sniffer harness to bring the wires to a more suitable location. Having the scope probe hanging is a bit precarious.

Sniffer Harness v1. I think I transposed a pin so I might have to update it.

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