Old alternator packed up replaced with new one bearings collapsed in old one now asr light appears 10 mins into driving checked load signal wire (dfm) no breaks on wire any ideas?? Cheers

Have you checked that the two-way connector is securely plugged into the back of the alt?

How did you check that there were no breaks in the wire?

Do you have a multimeter?

Hi yes i checked plug on back of alternator and also traced all loom back from plug to underneath the car to other plug all seems fine and no i dont have a multimeter 

Did you check both sides of the plug/socket connection at the gearbox bracket? The part going off away from the alternator towards the nearside of the car is just as likely to have breaks as the other side. The wire colour of the DFM wire changes to purple/green on the side of the connection that I mean.

 

May be worth acquiring a super-cheap meter for a fiver or so, then you can unplug the connector at the alternator and measure what volts you have on each pin there with ignition on.

If either pin has no volts relative to chassis/batt negative, that wire is broken.

Ive got it booked in at garage tomorrow ive spent 2 hours under the car tonight and cant see anything ill see what the garage says tomorrow hopefully they will put a multi metre on it 

Ask them to check continuity between pin 2 of the alternator connector and pin 38 of the 81-way engine ECU connector.  Whereabouts are you located?

Im in grimsby 

Other than Wino's thoughts (all reasonable) I'd also think about the strip fuses over the battery being cracked.