What is going on? All controls inoperable headlight panel!

pierremcalpine · Jul 13th, 2018, 22:09

Alright, totally confused. Nothing is working on the panel that has the headlight settings, the gas fuel cap release, the fog lights and the cabin illumination dimmer. What is going on?

I'm also getting a code "Communication with LSM control module Signal Missing" "CEM-1E04" message.

Anyone?

ASt85 · Jul 14th, 2018, 02:42

The "Communication with LSM control module Signal Missing" "CEM-1E04" message means that the LSM, which is the Light or Lamp Switch Module, signal is missing, which suggest either a broken light switch module or a wire to it having come adrift.

Take a look at Clan's post here https://www.volvoforums.org.uk/showthread.php?t=197809
post number 2.

and https://www.volvoforums.org.uk/showt...=197809&page=2
post number 15

oragex · Jul 14th, 2018, 08:46

The headlights switch unit can go bad, but also check the connector behind. A used one is not hard to replace

https://www.youtube.com/watch?v=wKD-2aSxbog

pierremcalpine · Jul 14th, 2018, 15:12

Resolved: it turned out that all controls on the lamp switch were not functioning. A bit of googling suggested resildering the joints on the panel itself. That took about 5min. Popped the lamp switch back in the car and all seems well. I will update if I run into further difficulties.

pierremcalpine · Jul 15th, 2018, 23:01

Crap. Non functional again. Looks like I’m headed to the wreckers.

Jul 13th, 2018, 22:09	#1
pierremcalpine Premier Member Last Online: Jan 3rd, 2024 14:43 Join Date: Feb 2012 Location: Toronto Canada	What is going on? All controls inoperable headlight panel! Alright, totally confused. Nothing is working on the panel that has the headlight settings, the gas fuel cap release, the fog lights and the cabin illumination dimmer. What is going on? I'm also getting a code "Communication with LSM control module Signal Missing" "CEM-1E04" message. Anyone? __________________ 2003 V40 1.9T B4204T4, 197,000miles (sold but alive!), 2004 S60 2.5T, 160,000miles, 2010 V70 3.2, 125,000miles, 2002 V70XC 2.4, 175,000miles Click here for my x40 and V70 P3 repair guides

Jul 14th, 2018, 02:42	#2
ASt85 Premier Member Last Online: Today 14:11 Join Date: Aug 2010 Location: Walderslade....Kent	The "Communication with LSM control module Signal Missing" "CEM-1E04" message means that the LSM, which is the Light or Lamp Switch Module, signal is missing, which suggest either a broken light switch module or a wire to it having come adrift. Take a look at Clan's post here https://www.volvoforums.org.uk/showthread.php?t=197809 post number 2. and https://www.volvoforums.org.uk/showt...=197809&page=2 post number 15 Last edited by ASt85; Jul 14th, 2018 at 02:46.

Jul 14th, 2018, 08:46	#3
oragex Premier Member Last Online: Jul 26th, 2021 21:24 Join Date: Jun 2013 Location: Coldnada	The headlights switch unit can go bad, but also check the connector behind. A used one is not hard to replace https://www.youtube.com/watch?v=wKD-2aSxbog __________________ Several Volvo Repair Videos https://www.youtube.com/playlist?lis...ECTts0FSVSOT_c

Jul 14th, 2018, 15:12	#4
pierremcalpine Premier Member Last Online: Jan 3rd, 2024 14:43 Join Date: Feb 2012 Location: Toronto Canada	Resolved: it turned out that all controls on the lamp switch were not functioning. A bit of googling suggested resildering the joints on the panel itself. That took about 5min. Popped the lamp switch back in the car and all seems well. I will update if I run into further difficulties. __________________ 2003 V40 1.9T B4204T4, 197,000miles (sold but alive!), 2004 S60 2.5T, 160,000miles, 2010 V70 3.2, 125,000miles, 2002 V70XC 2.4, 175,000miles Click here for my x40 and V70 P3 repair guides

Jul 15th, 2018, 23:01	#5
pierremcalpine Premier Member Last Online: Jan 3rd, 2024 14:43 Join Date: Feb 2012 Location: Toronto Canada	Crap. Non functional again. Looks like I’m headed to the wreckers. __________________ 2003 V40 1.9T B4204T4, 197,000miles (sold but alive!), 2004 S60 2.5T, 160,000miles, 2010 V70 3.2, 125,000miles, 2002 V70XC 2.4, 175,000miles Click here for my x40 and V70 P3 repair guides

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