Indicators / hazards problem

Yosser · Jun 18th, 2022, 09:14

Bit of a weird issue on the way to work this morning with the indicators. For reference it's a 2005 v70 d5.

Everything was fine first thing, then I noticed at one point my left indicator was on - solid, not flashing. The indicator wasn't switched on.

I dipped the clutch, cycled the ignition, restarted, and it went out. All good, until I indicated to leave the motorway and got nothing...

Bottom line is I've had to disconnect the battery while the car is parked at work as the left indicator came back on solid and wouldn't go out - even with the ignition off.

So, no indicators, no hazard lights either.

Any ideas?

Clan · Jun 18th, 2022, 12:09

Quote:

Originally Posted by Yosser

Bit of a weird issue on the way to work this morning with the indicators. For reference it's a 2005 v70 d5.

Everything was fine first thing, then I noticed at one point my left indicator was on - solid, not flashing. The indicator wasn't switched on.

I dipped the clutch, cycled the ignition, restarted, and it went out. All good, until I indicated to leave the motorway and got nothing...

Bottom line is I've had to disconnect the battery while the car is parked at work as the left indicator came back on solid and wouldn't go out - even with the ignition off.

So, no indicators, no hazard lights either.

Any ideas?

A problem with the CEM I would say , possible water ingress?

Yosser · Jun 18th, 2022, 12:22

Thanks for the suggestion, I'm at a loss right now as to what it could be.
Very busy weekend at work for me so I won't really be able to start investigating until Monday.

It's been a while since I removed a cem, hopefully it's not too complex and I'll take a look.

Yosser · Jun 18th, 2022, 21:04

The update after connecting the battery back up after its 12hr break is that everything is working fine again....

We'll see if it stays 'fixed', time will tell.....

Joe Harding · Jun 19th, 2022, 09:02

Moisture in the CEM can exhibit itself in any number of bizarre issues - wipers going mad etc.

Ripmax · Jun 20th, 2022, 09:11

Agreed. My money is on a CEM issue for this, as the indicators are controlled 100% within the CEM (flash timing, bulb fail detection, physical switching, and listening to the indicator stalk input etc...)

Yosser · Jun 20th, 2022, 20:56

Not much to report, but I removed the scuttle panel to take a look at the cem connectors today.

Everything looked OK, no obvious signs of water ingress or corrosion, but I used a bit of contact cleaner and worked the plugs a bit to try and ensure a good connection.

An interesting little job, always something to learn, and I hope my flashers will continue to flash only when required....

Jun 18th, 2022, 09:14	#1
Yosser Gizza job - I can do that Last Online: Feb 12th, 2024 15:23 Join Date: Aug 2007 Location: edinburgh View Photos By: Yosser	Indicators / hazards problem Bit of a weird issue on the way to work this morning with the indicators. For reference it's a 2005 v70 d5. Everything was fine first thing, then I noticed at one point my left indicator was on - solid, not flashing. The indicator wasn't switched on. I dipped the clutch, cycled the ignition, restarted, and it went out. All good, until I indicated to leave the motorway and got nothing... Bottom line is I've had to disconnect the battery while the car is parked at work as the left indicator came back on solid and wouldn't go out - even with the ignition off. So, no indicators, no hazard lights either. Any ideas? __________________

Jun 18th, 2022, 12:22	#3
Yosser Gizza job - I can do that Last Online: Feb 12th, 2024 15:23 Join Date: Aug 2007 Location: edinburgh View Photos By: Yosser	Thanks for the suggestion, I'm at a loss right now as to what it could be. Very busy weekend at work for me so I won't really be able to start investigating until Monday. It's been a while since I removed a cem, hopefully it's not too complex and I'll take a look. __________________

Jun 18th, 2022, 21:04	#4
Yosser Gizza job - I can do that Last Online: Feb 12th, 2024 15:23 Join Date: Aug 2007 Location: edinburgh View Photos By: Yosser	The update after connecting the battery back up after its 12hr break is that everything is working fine again.... We'll see if it stays 'fixed', time will tell..... __________________

Jun 19th, 2022, 09:02	#5
Joe Harding Premier Member Last Online: Yesterday 21:25 Join Date: Oct 2010 Location: Bristol	Moisture in the CEM can exhibit itself in any number of bizarre issues - wipers going mad etc. __________________ "The more people I meet the more I like my God."

Jun 20th, 2022, 09:11	#6
Ripmax Member Last Online: Aug 7th, 2023 16:27 Join Date: Mar 2018 Location: Leicestershire (with VIDA pm me)	Agreed. My money is on a CEM issue for this, as the indicators are controlled 100% within the CEM (flash timing, bulb fail detection, physical switching, and listening to the indicator stalk input etc...) __________________ Current - 2004 Volvo V70R Titanium Grey - 67k 2008 S60 2.0t Sport Electric Silver - 156k 2000 V70 Classic 2.4M Signal Red - 240k 2001 Audi A6 C5 Sport Avant 1.9 TDi - 173k

Jun 20th, 2022, 20:56	#7
Yosser Gizza job - I can do that Last Online: Feb 12th, 2024 15:23 Join Date: Aug 2007 Location: edinburgh View Photos By: Yosser	Not much to report, but I removed the scuttle panel to take a look at the cem connectors today. Everything looked OK, no obvious signs of water ingress or corrosion, but I used a bit of contact cleaner and worked the plugs a bit to try and ensure a good connection. An interesting little job, always something to learn, and I hope my flashers will continue to flash only when required.... __________________

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