2006 V70 Headlights randomly turn on/off
So this vehicle last night decided to start turning on/off the headlights randomly. This is not happening rapidly, instead the right one would stay on for a few seconds then turn off for around 30 seconds. The left one would stay on for around 20 seconds then turn off for around 10. This is of course give or take a few seconds either way. Today the driver side is not operating at all and the left one will stay on for a couple minutes after the car is started then start acting up and eventually turning off all together.
I've done some digging around and after looking at the wiring diagram am thinking that it is the Central Electronic Module. My question is are there any relay's on it that could cause this problem or am I possibly looking at having to replace the whole module? If it is the module does anyone know the correct part number so I don't order the wrong one? I just want to make sure before I start sending money out the door. https://cimg9.ibsrv.net/gimg/volvofo...bec7ebe6b9.png |
You need to inspect the wiring inside the headlights and along the body. What you are describing sounds like a wiring problem. I've never had a lighting module go bad so start with the simple stuff.
You should also visit someone who has diagnostic software to see if there are any stored codes, etc. What you are doing is shooting in the dark unless you use the diagnostics. |
Originally Posted by tony1963
(Post 456236)
You need to inspect the wiring inside the headlights and along the body. What you are describing sounds like a wiring problem. I've never had a lighting module go bad so start with the simple stuff.
You should also visit someone who has diagnostic software to see if there are any stored codes, etc. What you are doing is shooting in the dark unless you use the diagnostics. |
I had a similar thing happen with my headlights. It turned out that one of the two male pins in the headlight had bent from the last time I had replaced the bulbs. I guess I was not careful enough in making sure that the pins were completely straight before plugging the replacement lights in.
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With one headlight
https://cimg5.ibsrv.net/gimg/volvofo...c9b0ef4f00.jpg
https://cimg6.ibsrv.net/gimg/volvofo...2dccf72cb8.jpg
Originally Posted by pierremcalpine
(Post 456339)
I had a similar thing happen with my headlights. It turned out that one of the two male pins in the headlight had bent from the last time I had replaced the bulbs. I guess I was not careful enough in making sure that the pins were completely straight before plugging the replacement lights in.
so I went and grabbed a cem from a 2007 Volvo V60 at the local junkyard. Got it installed and no start. For my research this was supposed to be a compatible unit. Not sure if the cem have to be programmed to a specific vehicle or if the cem that I got is just a dud. Any input on that? |
yes the newer CEMs need to be paired to your car by a dealer. Older CEMs (like my 00 S40) do not need to be paired.
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Well hell
Originally Posted by mt6127
(Post 456537)
yes the newer CEMs need to be paired to your car by a dealer. Older CEMs (like my 00 S40) do not need to be paired.
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