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Discussion Starter · #1 ·
hi guys i have a renault laguna 1.8 petrol 2003 which came in for suspected key problem the immo light goes off and cranks so this is not immo issue

anyhow checked all fuses etc but car will not start i did diagnostics and this is what im getting

df038- computer immobiliser memory zone fault

df091-vehicle speed information-unidentified electrical fault

these errors will not delete

then we have

df079 unlocking relay control circuit, short circuit to +12v

df078 locking relay control circuit

the crankshaft sensor has been changed any ideas what it can be?

Hello and welcome to the forum :)

It might be worth removing the ECU which IIRC is under the battery tray and check the ECU and plug as they are prone to corrosion on the Laguna
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