Alarm/plip Probs

[xmexclusive]

Hi Rowan

The red led on the plip pcb is just an indicator. It works in the same way as the dashboard warning lights, that is when it is working correctly it lights up to indicate that the circuit is in operation. If the led stays on then it will quickly flatten the batteries. I have a spare plip in the spares/junk box that shows a steady red light and I could not get it to work the associated receiver. It also kept flattening new batteries. I have a plip that I am currently using for one of the cars that has stopped flashing the led but still works the car locks fully. From this I have concluded that a continuous red light means a sticking button or an IC that locks on instead of pulsing. One of these days I intend to sit down and draw out the plip pcb circuit diagram.
Interested in your resync proceedure. I will try this.

Regards

XMexc

[rowanmoor]

That was my original assumption too. However, but I did wonder if it was related to low battery as the range has been decreasing recently (but not enough for me to bother replacing them up till now).

It probably was a stuck button or something shorting somewhere. But since reviving itself I have had no problems (other than the nearly flat batteries). I will see how it goes once I get the new ones in (and I will check there is no crud in there that could be conductive as well while I have it open). Perhaps it was the sea air in Devon

Cheers,
Rowan.

This post has been edited by rowanmoor on September 12, 2006 09:20 am

[jorgy9]

Sorry for my ignorance but what is "deadlocking"? Sounds interesting...

regards
george

[rowanmoor]

Deadlocking is the extra click that the central locking gives on arming the alarm. I'm not sure if the Mk1 (or 1.5) had it or not? Presume it does. My wifes '96 306 does - but I don't know when they started putting it in cars and at what spec levels.

What it does is stops the doors from being able to be unlocked from inside. The idea is that if you have locked the car and someone comes and puts a brick through the window to break in they still cannot unlock/open the doors, boot etc. Only the key in the lock (for those doors that have them) or the central locking can unlock any of the locks.

It is activated (normally) in Pug/Cits by arming the alarm or by holding the key in the turned position for a couple of seconds when locking it.

Bit of a pain when it goes wrong really... I'm sure it reduced thefts at one time though.

Cheers,
Rowan.

This post has been edited by rowanmoor on September 12, 2006 05:32 pm