Indicators not self-cancelling

[john_k_sri]

Hi folks

Yesterday, my indicators stopped auto-cancelling after turning left or right (had to cancel them with the stalk).

Trawling through forums I gather that the problem could be down to a plastic lug in the stalk (which is 'nudged' as the steering wheel returns to the centre position) being damaged or broken.


So a new stalk would seem to be a good place to start.

The dealer who is fitting a new stalk later this week has told me that it could be the dreaded CIM. I just hope replacing the stalk cures it.

I plugged in OPCOM and got the following DTC codes:-

U2105 - CANBUS ECM*Message Range/Performance Error (CIM Error)

B1020 - SRS Steering Angle Sensor Signal Circuit Range/Performance Error (EHPS Error)

Clearly the above Errors would appear to point to the CIM and/or the Steering Angle Sensor.

I wonder whether the above errors have been caused by the failure of the Indicators to self-cancel.

Any comments/suggestions would be welcome. Thanks.

_

[trucker11]

after reading something on the internet on a Vauxhall side this is a known fault with the vectras sometimes mine don't cancel either sometimes they do its hit and miss really

[m8internet]

Mine did this briefly after the new CIM was fitted
They simply pulled each stalk out and then reinserted them

[plasma]

hey John Lost, does your car have ESP?

It does sound like the CIM to me, the steering is reporting a problem with the CIM and the indicators arent self cancelling as you said... My money is on the CIM,

[john_k_sri]

hey John Lost, does your car have ESP?

It does sound like the CIM to me, the steering is reporting a problem with the CIM and the indicators arent self cancelling as you said... My money is on the CIM,

No ESP - mine's a facelift non-V6.

Yes looks like you're right. I've been told that the stalk is simply a switch and the self-cancelling function is triggered by a devilishly clever magnet on the rotator which interacts with a sensor in the CIM, and not the rotator mechanically nudging a lug in the stalk like in the good old days.

So it's the CIM - installed under warranty 2½ years ago.

Damn I hate clever technology

[gibbon7000]

I have the same problem but only when I turn left. Plasma, I do have ESP, whats the relation? my TC light is on all the time too since before xmas.

[john_k_sri]

I read that the Steering Angle Sensor is located on the CIM if you have ESP, and I assume the TC/ESP light is triggered by the problem you appear to have.

[big rich]

Don't look good for me I got same problems :-/