wont start, electronic fault and immobilizer light on solid

Problem with your Megane? Can't find an answer? Workshop manuals and technical notes are in here.

Moderators: q292u, Ray, AndyAdmin, Stranger

owainmegane2
Posts: 2
Joined: Sun Dec 22, 2019 6:57 pm

wont start, electronic fault and immobilizer light on solid

Postby owainmegane2 » Sun Dec 22, 2019 7:00 pm

Hi Guys,

Problem with my Megane MK2 04 plate. ignition comes on but car wont crank over, electronic fault comes up on the dash and the immobilizer light stays solid.

Battery is fully charged, connections tight, starter is fine no issues there, just cant understand it. any one know what I need to do

thank you

scooper1000
Pass Plus
Posts: 193
Joined: Tue Mar 07, 2017 12:17 am
Currently Drives:: 2006 Renault megane 1.5 DCi Maxim

Re: wont start, electronic fault and immobilizer light on solid

Postby scooper1000 » Sun Dec 22, 2019 7:13 pm

Can you not check the starter solenoid to see if its faulty by jumping the connections on the starter motor itself...If engine starts then replace solenoid if engine spins but no start you will have to get a engine diagnostic done...GOOD LUCK

owainmegane2
Posts: 2
Joined: Sun Dec 22, 2019 6:57 pm

Re: wont start, electronic fault and immobilizer light on solid

Postby owainmegane2 » Sun Dec 22, 2019 10:01 pm

scooper1000 wrote:Can you not check the starter solenoid to see if its faulty by jumping the connections on the starter motor itself...If engine starts then replace solenoid if engine spins but no start you will have to get a engine diagnostic done...GOOD LUCK


will try this in the morning. thank you

renaultnewbe
Posts: 9
Joined: Mon Oct 14, 2019 1:59 pm
Currently Drives:: megane mk2 1.9dci
Location: hampshire

Re: wont start, electronic fault and immobilizer light on solid

Postby renaultnewbe » Sun Jan 05, 2020 2:49 pm

get a friend to start car and spray some carb/brake cleaner into the intake after a acouple of trie it should work i had same issue and it worked for me hope this helps

Rocker8742
Posts: 15
Joined: Mon Dec 28, 2015 6:45 pm
Currently Drives:: 2003 1.9dci Megane II

Re: wont start, electronic fault and immobilizer light on solid

Postby Rocker8742 » Mon Jan 06, 2020 3:58 pm

owainmegane2 wrote:Hi Guys,

Problem with my Megane MK2 04 plate. ignition comes on but car wont crank over, electronic fault comes up on the dash and the immobilizer light stays solid.

Battery is fully charged, connections tight, starter is fine no issues there, just cant understand it. any one know what I need to do

thank you


Hi Owain, had exactly this problem with my Megane 1.9dci last year. Car had been parked up for a couple of months and one day when I came to start it it just wouldn’t go.

Tried a whole host of things and had 2 mobile mechanics come out and tell me it was either the ECU or BSI was faulty.

Took it to a local Renault specialist who found the issue and had it fixed in 30minutes. There was a broken wire in the wiring loom that runs across the front of the battery tray. Wouldn’t have seen the break as it was only in the wire not the insulation. If you know what your doing I can send you the picture of the cable they’ve repaired or take it to a local Renault specialist.


Return to “Problems / Questions”

Who is online

Users browsing this forum: No registered users and 16 guests