Thread: Disco 2 - no start

Ok i found a UK thread TD5 but EXACTLY the same symptoms. Starts and stops after 3 seconds. Turned out to be a dodgy connection probably at the bonet plug but replacing the green with grey wire between the BCU and ECU - ie bypassing that circuit - did the trick...i am going to try that. I think its not co-incidental.that a few months ago i got.a alarm comms error code...

Cheers

whats an alarms comm error code?

Pedro 1668. See the link on p3 of this thread. Sierra says its data link between BCU and ECU code...very suspect

Cheers

Vehicle has now had the BCU, fuel pump, underbonnet fuse box and internal fusebox (with built in IDM) replaced. Wont crank at all but it might just need the ignition being left on for 5 mins to reestablish comms between BCU and IDM or testbook to do the same thing...hopefully it was the last thing done..ie in car fusebox because other stuff allowed it to start and run for a second but then stop. Cheers

You must be getting close! That is 1 of the most problematic things I have heard of :O Unreal how stubborn its being! heres hoping..
Cheers Scott

Thanks gents. I am very keen to get her back on the road. Cheers

Originally Posted by ozscott

1. ....Starts and stops after 3 seconds.....

2. Vehicle has now had the BCU, fuel pump, underbonnet fuse box and internal fusebox (with built in IDM) replaced.

1. The ECU misses the security code, see attachment(i underlined with red the relevant part),

2. if you replaced the BCU you must make the ECU learn the security code with nanocom, engine UTILITY menu.... if it refuses it means that the engine ECU is the problem and it was from the beginning.

Mate you are a champion thanks!