Auto gearbox ECU is draining the battery
2008 Renault Laguna 2.0 t tourer

Automatic gearbox on my 08 Laguna 2.0t petrol is showing fault ECU bad earth and is draining the battery.
Local garage has had the car for three weeks and can't find the fault
Any clues?
Problem added: Aug 20, 2021 (11 months ago)

Renault Laguna 2008
Variant: 2.0 t tourer
Problem Category
Gearbox & Clutch
Electrics, ECU, Warnings & Lights

Replies and fixes

Tried cleaning up earthing or running a new earth from unit body ( if possible .) and carried out a parasitic drain test to verify that is where the fault lies .Check wiring harness , Renault electrics are not the best
Answered Aug 20, 2021 (11 months ago)
Thanks I'll pass this to my garage
Answered Aug 20, 2021 (11 months ago)

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Parts mentioned on this page
Battery
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Automatic Gearbox
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Gearbox
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