A3 câble problem

Multiecuscan usage help and guides
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MichelL
Posts: 1
Joined: 29 Jan 2026, 20:46

A3 câble problem

Post by MichelL »

Hello,

With MES 4.8 on a Fiat Grande Punto 1.2 8V (model 199), I can access the engine parameters using my ELM327 USB cable.

However, when I try to use my yellow A3 cable, I get a CAN-BUS connection error on all modules that require that cable.

I’m wondering if I should remove some pull-down resistors, but I can’t locate them.

Any ideas? (I’ve attached images of the circuit.)

Regards,
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