R9M 🤦🏻 · RMS Auto-electrics/Diagnostics

R9M 🤦🏻

I have a 2015 Renault Traffic 1.6 R9M with a short crank and a main relay short to earth fault code. The vehicle cranks for two or three revolutions the cuts off.

Main relay works correctly.
I have a short to earth on two fuses (F7 & F8) one of which powers the relay. (Test light on battery + and test light lit up on the fuse side to the wiring harness)
If i unplug one of the three ECU connectors i loose the short to earth.

Wiring harness is a bit naughty to get at to strip down.

Surely this isn't an ECU issue?

I have wiggle tested the harness (areas i can get to) with the test light in the fuse and i don't loose the illumination from the test light...

Unsure of where to go from here. Any pointers?

I have added the initial fault code scan disregard the air mass, fuel and glow plug fault codes i set them.

🙏🏻🙏🏻

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R9M 🤦🏻