[AlexFraley]

The other day, around 12AM after I got off work, my car didn't want to run. It started up but shut off after a second or two. I finally got it to stay on and got home. Now every few times I start my car it does the same thing. The Immobilizer light flashes when it doesn't keep going and throws the "Immobilizer blocked engine start" code. Any ideas? is the chip loose in the key?

 

[pencilneck]

Any DTCs in the Instrument Cluster?

 

[AlexFraley]

Didn't even think to check. This mean I need a battery or something?

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[billymade]

Some good info here: I have had immobilizer issues for years, battery, charging issues does seem to exacerbate the problem. I've never checked the reader coil connectors/wiring problem but they say its a common issue. Check out some of the tips below:

01176 - Ross-Tech Wiki