Have this above vehicle in at the moment,

Customer has explained that it started cutting out when coming up to junctions.

a deeper look into it suggests that the ECU is losing a power supply when ever brakes are pressed, hazards are opperated or sidelights turned on.

i have checked so far the powers and ignition supplies to ECU and these are fine, the earth is bolted to the casing,

the minute you operate the hazards the management lights flicker in the dash quite erratically!

going to have a deeper look into this but has anyone got any wiring diags for fuel pump / main relays, and sidelight/brake lights/hazard warning lights? cant seem to find any on E3..

Thanks in advance!

Kris