50% of my lights are gone, dash lights out too. Weird acting switch, video in thread

Meath77 · 23rd January 2019, 16:38

I had this problem before. Front right indicator not working, back left, back right light, one head and one dip not working. This happened before and it was the lcm, but I can't replace this in Ireland unless there's a t4 I don't know about.

Switch acts a bit weird when you start up. It starts flickering when the engine starts. Anyone have a clue if its lcm, loose connection, relay or anything? Video of how the switch acts when I start up is below

https://youtu.be/Au4j2oMh8OQ

Phil-T4 · 23rd January 2019, 17:04

I think you may have lost or be losing one of the main power feeds to the LCM, best get these checked asap as it could lead to a fire.

Meath77 · 23rd January 2019, 17:33

Ok phil, will do. Assuming any auto electrician can sort that?

trikey · 23rd January 2019, 17:35

Swap your LSM for one of another car and see if the symptoms persist, it will be fine to do this as a trial while the car is not being driven.

Phil-T4 · 23rd January 2019, 17:39

They should be able to yes but if broken make sure they are repaired properly as each 4mm cable is feed from a separate 50Amp fuse in the under bonnet fusebox.

A common failure is the wires get chafed under the fusebox.

Mickyboy · 23rd January 2019, 17:40

Quote:

Originally Posted by trikey

Swap your LSM for one of another car and see if the symptoms persist, it will be fine to do this as a trial while the car is not being driven.

Yes completely agree with Andy
Mick

Meath77 · 23rd January 2019, 17:41

Quote:

Originally Posted by trikey

Swap your LSM for one of another car and see if the symptoms persist, it will be fine to do this as a trial while the car is not being driven.

Here's the annoying part. I had a spare LSM but left it in another rover which is now a long way away. Hard to swap one in Dublin, 75s are rare over here

Mickyboy · 23rd January 2019, 19:30

Quote:

Originally Posted by Meath77

Here's the annoying part. I had a spare LSM but left it in another rover which is now a long way away. Hard to swap one in Dublin, 75s are rare over here

I could send you one over I’ve got loads in stock if that helps
Mick

Meath77 · 23rd January 2019, 21:04

Cheers mick, I'll check the power leads, if it's not them, I'll get back onto you

Meath77 · 28th January 2019, 14:24

Ok, I had a quick look under the fuse box to see if there was anything obvious, didn't notice. Then I took the lsm out. Put some contact cleaner onto the pins on the lsm where it plugs in. And it now works.

23rd January 2019, 16:38	#1
Meath77 Regular poster Rover 75 CDTI Connoisseur Join Date: Oct 2012 Location: Dublin Posts: 46 Thanks: 16 Thanked 2 Times in 2 Posts	50% of my lights are gone, dash lights out too. Weird acting switch, video in thread I had this problem before. Front right indicator not working, back left, back right light, one head and one dip not working. This happened before and it was the lcm, but I can't replace this in Ireland unless there's a t4 I don't know about. Switch acts a bit weird when you start up. It starts flickering when the engine starts. Anyone have a clue if its lcm, loose connection, relay or anything? Video of how the switch acts when I start up is below https://youtu.be/Au4j2oMh8OQ

23rd January 2019, 17:35	#4
trikey Premium Trader Rover 75 Join Date: Nov 2010 Location: Devon Posts: 33,763 Thanks: 8,837 Thanked 14,831 Times in 8,030 Posts	Swap your LSM for one of another car and see if the symptoms persist, it will be fine to do this as a trial while the car is not being driven. __________________ Lest we forget..

23rd January 2019, 17:04	#2
Phil-T4 I really should get out more....... MG ZT-T, Rover 75 Tourer Join Date: Mar 2011 Location: Olney Posts: 2,969 Thanks: 245 Thanked 1,088 Times in 657 Posts	I think you may have lost or be losing one of the main power feeds to the LCM, best get these checked asap as it could lead to a fire.

23rd January 2019, 17:33	#3
Meath77 Regular poster Rover 75 CDTI Connoisseur Join Date: Oct 2012 Location: Dublin Posts: 46 Thanks: 16 Thanked 2 Times in 2 Posts	Ok phil, will do. Assuming any auto electrician can sort that?

23rd January 2019, 17:39	#5
Phil-T4 I really should get out more....... MG ZT-T, Rover 75 Tourer Join Date: Mar 2011 Location: Olney Posts: 2,969 Thanks: 245 Thanked 1,088 Times in 657 Posts	They should be able to yes but if broken make sure they are repaired properly as each 4mm cable is feed from a separate 50Amp fuse in the under bonnet fusebox. A common failure is the wires get chafed under the fusebox.

23rd January 2019, 21:04	#9
Meath77 Regular poster Rover 75 CDTI Connoisseur Join Date: Oct 2012 Location: Dublin Posts: 46 Thanks: 16 Thanked 2 Times in 2 Posts	Cheers mick, I'll check the power leads, if it's not them, I'll get back onto you

28th January 2019, 14:24	#10
Meath77 Regular poster Rover 75 CDTI Connoisseur Join Date: Oct 2012 Location: Dublin Posts: 46 Thanks: 16 Thanked 2 Times in 2 Posts	Ok, I had a quick look under the fuse box to see if there was anything obvious, didn't notice. Then I took the lsm out. Put some contact cleaner onto the pins on the lsm where it plugs in. And it now works.