Hazard warning lights will not stop. -scrap car! - Page 2

suzublu · 30th April 2016, 21:12

Quote:

Originally Posted by macafee2

lsm?

macafee2

Light Switch Module, the bit near your knee where you turn the lights on

& to the op, you can't just swap lsm's as they need to be configured by T4. The LSM stores the mileage info, so not easily swapped

Trans-am · 1st May 2016, 07:13

Quote:

Originally Posted by trikey

Sounds like water interfering with the canbus signal.

Highline radio in boot?
Sunroof leaking onto EWS?
ECU had a bath?

The car did have the usual flooding issue. But drains are currently clear and everything is dry.

Base model radio , no sunroof. Yes, ecu will have had a bath. I will check it out. Thanks that's a fresh idea. I have put so much work in to this car over the last 2 years or so, I am really annoyed if I have to scrap it! (Especially as I have literally just fitted a mls head gasket, water pump and time belt)

Suzublu, I am told swapping a lsm is simple, it's just your mileage will disappear. Mileage is not required for mot.

Trans-am · 1st May 2016, 08:06

Quote:

Originally Posted by Trans-am

The car did have the usual flooding issue. But drains are currently clear and everything is dry.

Base model radio , no sunroof. Yes, ecu will have had a bath. I will check it out. Thanks that's a fresh idea. I have put so much work in to this car over the last 2 years or so, I am really annoyed if I have to scrap it! (Especially as I have literally just fitted a mls head gasket, water pump and time belt)

Suzublu, I am told swapping a lsm is simple, it's just your mileage will disappear. Mileage is not required for mot.

Assuming the silver box by the pollen filter is the ecu, when removed the hazards still flash. This now can only really be a lsm fault!?

cb750chris · 3rd May 2016, 11:37

Hi Simon,
You have a PM
You can swap a LSM for the purposes of fault elimination - it will display ERR in the trip distance (instead of trip distance), however all lights should work as expected (I believe). That would help you narrow down if it is car/LSM causing the issue.

Chris

berkshirelad · 3rd May 2016, 13:53

Quote:

Originally Posted by Trans-am

I wish! I will check that, but I assumed as it starts and runs that's not the case. Because logically the cut off cuts of the fuel supply?

If anyone lives near basing stoke, reading or Newbury and has a lsm I can try I would be most grateful! :-)

I'm in Newbury and I have a spare LSM. PM me with an address if you'd like me to pop by

Hazards are switched (both off and on) by a momentary earth to the LSM via the hazard switch.

You can test the switch by removing the switch and unplugging the 2 pin connector. Earthing the connector pin should switch the hazards on and off. When I got mine, the hazards didn't work at all and I found that the switch has no earth connection.

Trans-am · 3rd May 2016, 20:10

Quote:

Originally Posted by berkshirelad

I'm in Newbury and I have a spare LSM. PM me with an address if you'd like me to pop by

Hazards are switched (both off and on) by a momentary earth to the LSM via the hazard switch.

You can test the switch by removing the switch and unplugging the 2 pin connector. Earthing the connector pin should switch the hazards on and off. When I got mine, the hazards didn't work at all and I found that the switch has no earth connection.

You know something Berkshirelad. I am straight. But i have a kiss for you, maybe a bear hug as well. You solved it. T H A N K Y O U.

I cant tell you what a ball ache this has been. I tried touching the two feeds together to the hazards from the LSM, but i never thought about grounding them! The moment i grounded them, light OFF!!!!! - YES!

I now have to fix all the stuff i took apart to troubleshoot this, I also have to service the car and get it back on the road, lets hope the head gasket does not pop! - its had 0 mileage since being done.

Chris, thanks for your offer of help. In the end i got a LSM on ebay for £7.50 delivered! - but it wont arrive till next week. - But i dont need it now!

I have been driving my 1967 S-type Jag everyday so its not been all bad, but this has taken time away from restoring my Trans-am and Drag racing hearse.

I will try to get the Rover undersealed this summer, i think she may have afew more winters in her! ;-)

T H A N K Y O U -all.

cb750chris · 3rd May 2016, 20:32

S type - Very nice....

3rd May 2016, 11:37	#14
cb750chris Trader Rover 75 Tourer Join Date: Apr 2011 Location: Portsmouth Posts: 849 Thanks: 201 Thanked 292 Times in 200 Posts	Hi Simon, You have a PM You can swap a LSM for the purposes of fault elimination - it will display ERR in the trip distance (instead of trip distance), however all lights should work as expected (I believe). That would help you narrow down if it is car/LSM causing the issue. Chris __________________ Now offering T4 services in the Fareham area Replacement keys programmed / supplied / cut Diesel 135 upgrade available IPK virginisation and T4 matching available Sorry, due to a big change in home circumstances, I am unable to do any large jobs at present, but can still offer evening time diagnostics.

3rd May 2016, 20:32	#17
cb750chris Trader Rover 75 Tourer Join Date: Apr 2011 Location: Portsmouth Posts: 849 Thanks: 201 Thanked 292 Times in 200 Posts	S type - Very nice.... __________________ Now offering T4 services in the Fareham area Replacement keys programmed / supplied / cut Diesel 135 upgrade available IPK virginisation and T4 matching available Sorry, due to a big change in home circumstances, I am unable to do any large jobs at present, but can still offer evening time diagnostics.