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Father Ted · Jan 16th, 2022, 10:40

Long time since I posted on here, but I'm still loitering.
I've noticed an "issue" with my DIM which I thought I'd share as useful information.

My DIM failed a couple of years back. Started with Main Beam light not working, then no display/clocks at all.
I sent it in for repair (Volvo Diagnostics: I can't rate this guy highly enough!).
After about 9 months it failed again, or so I thought. But I noticed that turning the ignition off, then on again most times made it work.
I sent it back (lifetime warranty on the repair).
But every now and then it still "fails". However, I noticed that if I leave a tiny pause between turning the key from position 1 to position 2 (and ensure that the key is pushed all of the way home) it never fails. If I don't do this occasionally I get just the engine management light. If I turn the ignition off immediately and then ensure the pause between Pos1 and Pos2 not only does the DIM work again, I don't get the airbag fail message.

So, I'm thinking, sometimes it might not be a DIM failure, but a dodgy switch in the keyswitch, causing a small delay in the DIM powering up.

When I get a spare life I might investigate this further, but I thought I'd share the information as it might help someone else.

Jan 16th, 2022, 10:40	#1
Father Ted Master Member Last Online: Feb 28th, 2023 20:25 Join Date: Feb 2013 Location: Wirral	DIM issues,alternative diagnosis Long time since I posted on here, but I'm still loitering. I've noticed an "issue" with my DIM which I thought I'd share as useful information. My DIM failed a couple of years back. Started with Main Beam light not working, then no display/clocks at all. I sent it in for repair (Volvo Diagnostics: I can't rate this guy highly enough!). After about 9 months it failed again, or so I thought. But I noticed that turning the ignition off, then on again most times made it work. I sent it back (lifetime warranty on the repair). But every now and then it still "fails". However, I noticed that if I leave a tiny pause between turning the key from position 1 to position 2 (and ensure that the key is pushed all of the way home) it never fails. If I don't do this occasionally I get just the engine management light. If I turn the ignition off immediately and then ensure the pause between Pos1 and Pos2 not only does the DIM work again, I don't get the airbag fail message. So, I'm thinking, sometimes it might not be a DIM failure, but a dodgy switch in the keyswitch, causing a small delay in the DIM powering up. When I get a spare life I might investigate this further, but I thought I'd share the information as it might help someone else. __________________ 2003 V70 2.4SE Auto. Gone now. 2003 XC90 D5. Auto.