Indicator problem - not the usual.

[smssms]

First of all, I've tried fitting a brand new hazard light switch/relay - no cure.

PROBLEM - When the indicators or hazards are not being used, a relay in the hazard light switch goes crazy, clicking, chattering and buzzing at random.
If I turn the indicators or hazards on, they work fine and I just get the normal click, click, click with the correct lights.

I think it may be a <12V 'leak' to the relay due to a bad earth or other fault, but I am not sure.

Can anyone suggest likely place to look or ways to diagnose this problem?

[kenney]

Do you have a towbar fitted with the trailer contact?

[smssms]

Do you have a towbar fitted with the trailer contact?

Good point, there WAS, but I removed it and all the associated electrics - no change

[Peter D]

Disconnect the connector to the indicator stalk an see it it stops. Regards Peter

[Peter D]

Long shot, Check under the passenger side front footwell, ideally under the carpet, for any sign of water. There is a feed from the CCM to the hazards to turn them on if the airbags trigger. Regards Peter

[smssms]

Thanks for the idea, but foot-well is dry.

Any others?

[shabazmo]

I have the same problem which has been a pain for the last 6 months. I my case the problem varies from day to day from a slight crackle to lots more and continuing after I have returned te indicator to the neutral position. I today took the stering wheel off and played with the wires in the indicator cruise switch but did not notice any difference. I might need a new indicator switch, but would like to be sure.

[smssms]

I have had a similar thought and just ordered a new indicator/cruise stalk from Ebay - I'll let you know if it cures it...

[smssms]

Dug out my multi-meter and got the following:

From the cigarette lighter (-) I got the following reading from the bare hazard switch socket pins:

1 = No conductor
2 = +12.57
3 = -0.003
4 = +12.54
5 = -0.003
6 = +0.116
7 = -0.003
8 = +7.65
9 = +0.013
10 = +12.53

So, pins 8 and maybe 6 are looking a bit suspect....

Crash signal, airbags and central locking?

Tried disconnecting 8 - no change!
Tried disconnecting 6 - no change!

What little hope I have left is pinned on the new indicator stalk solving this......

[Peter D]

Pin 6 pulses when you lock the car to flash the indicators. Pin 8 if from the Airbag controller and appears a bit odd. Can you connect the relay/flasher unit and measure pin 8 in situ. Regards Peter