Strange CDTI 120 problem

**n_hudson** · 21st February 2010, 22:27

I dont know if its the same engine in the Signum/Vectra as it is in the Astra, but just seen something really strange...

The cars a 58 plate Astra SRI CDTI 120 with 15'000ish miles.

The problem is really random...

Randomly, ALL the warning lights on the dash will come on and at the same time ALL the needles (Speed, Fuel, Revs etc) shoot all the way to max and then come back to normal. The car doesnt rev high or anything, just the dials.

It does it for just a second or so, the car doesnt loose performance, just moves as if nothings happened, with no warning lights staying on.

Anyone got any ideas? Seen anything like this before?

**lesj** · 21st February 2010, 22:29

Sounds like a problem with the CIM, which is the dashboard module.
Would be best to get a code read, the CIM stores its own codes

**n_hudson** · 21st February 2010, 22:31

I was thinking something like that. As there doesnt seem to be a fault, I mean no warning lights etc, will it still store a code if its still running normal?

**lesj** · 21st February 2010, 22:39

Honestly not sure, however I've Op Com and the various ECUs on the car store random faults without lighting up any fault lamps. So they can register codes without putting up the spanner light.

**n_hudson** · 21st February 2010, 22:41

Cheers for the advice, I'll tell them to get it to the stealers see if there's any codes. Doing a quick google search, seems that the CIM is a common fault on the Astras...