Thread: Engine disabled

Originally Posted by parasnoop67

Do you think that a better battery may help. I read on one of the forums that the biggest and best battery you can fit in the tray is the way to go.
I'm running a Delcor Calcium with 900 cca's and things work well with that because the voltage is always up there.

I installed a very big battery as per this thread below. But I agree, this is important for RRs, but not as important and good earths for battery and BeCM.

just remember, even though you have turned off all the power in the entire suburb hoping to kill off all potential RF polluters, the neighbors 2 doors down battery operated wireless baby monitor just might set it off.....ask me how I know

Or the day the neighbors kid got a remote controlled mini forklift....my garage door went up and down a hundred times before I worked it out....

damn people with kids.....

That would be fine!

If RR woke up 3 times a night, there would be no problem, its happening every 100 seconds at my place, all night, every night.

that's about the update rate on my el cheapo wireless rain gauge

I want to follow up on this. I hope no-one minds me dragging it up again. I hope it is of use to someone in the future. Rupert below in this same thread, kindly offers his opinion on the reason for the symptoms of crazy wipers and lights that my car was displaying in the garage:

Originally Posted by Rupert Prior

the becm is failing, this may be the becm or a have been caused by something else. while it is still mobile get the car to somewhere you can work on it and has no unwanted rf signals and try the hard reset two or three times. if that fails then another becm is the way to go, i dont think a repair would work for long. if you find another unit i can clone yours to it.

Now, I believe Rupert has much more experience with such things than me, but I had a stubborn belief that my BeCM was OK. I didnt replace the BeCM. So far (touch walnut), the car and BeCM has been working perfectly for 6 months regular driving since then. My conclusion is that the errant radiation that was keeping my BeCM awake at night (proven by adm333 reproducing the waking behaviour with his car in my garage) was also causing the BeCM to go bananas.

So when people are experiencing strange vehicle electrical behavior, before assuming the BeCM is terminal, it may just be that you are in an area of saturating EM radiation. I reserve the right to abandon this notion and beg Rupert for help when my BeCM does fail.

I now need to go door to door to all my neighbours and find out who is transmitting a ~433mhz signal every 15 seconds. Will be asking about wireless rain guages, weather stations, burglar alarms etc. Sounds like fun hey?

Originally Posted by glenhendry

Disambiguification: This thread is my BeCM/immobiliser problem. While This thread is my BeCM not sleeping and killing the battery problem. They are related, but I am keeping them seperate and cross referencing them when it makes sense.

no worries, i`m glad you are getting to the bottom of the problem.

If you cant find an answer on this forum try the UK one at LandyZone - Land Rover Forum
They have a lot more P38s there and also a lot of people who know them and seem to have the same problems so it might be worth a visit.

The situation has finally been resolved. Completely. There are three thread that are related, I will finalise them all; here is the list:
- "fob handset sync"
- "Becm waking up"
- "engine disabled"

The solution ,as predicted by many who helped, was to buy the upgraded RF receiver (YWY500170). I got one from Island 4x4 for GBP141. It is very easy to install and requires no resync or setup.

Now the car is sleeping peacefully in the garage and on the street, with doors locked or unlocked. I am very relieved.

I think the main lesson here is that if your car is waking due to these errant signals, get it fixed (or remove rf receiver) before it drains your battery, thereby rattling and ruining your door locks, and confusing your becm into forgetting your fob codes. Better still, dont buy a house with 433mhz radiation around the place.

Sorry for the duplicate posts on these threads.