Intermitten Alarm issue and Remote Lock/Unlock

[muradhakim]

Hi
I have a Audi A4 1.9 TDI, 2002 registration. It has developed a strange problem of setting alarm off intermittently even when I am driving.

My remote locking does not work either, I have to open it manually and I need to put the key to ignition before its unlocked the whole car, If I don't put the key to ignition, alarm will set off.

I have tried changing battery to the key fobs, reprogram keys etc. spoke to a electrician, he wanted to additional remote lock/unlock device as a workaround as oppose to addressing the min issue here. I wonder how that's going to affect exiting alarm systems.

Any one had similar experience?

Murad

[kite]

Check your front footwells for damp.
Get the car scanned for faults.

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[muradhakim]

Check your front footwells for damp.
Get the car scanned for faults.

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No damp, no fault found when scanned.

[Crasher]

What type of aftermarket alarm is fitted?

[muradhakim]

I have not fitted any. it came with standard audi alarm

[kite]

Does the drivers door show open on the dash ?

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[muradhakim]

yes. dash board does not report any problem while the alarm goes off.

[Crasher]

I have not fitted any. it came with standard audi alarm

Ohh, sorry I presumed as you had posted it in "Vehicle-Security-Retrofit-aftermarket-alarms-amd-immobilisers" that is what it had....silly me!

You need to look at the last trigger identification number. When it goes off, do the indicators flash?

[kite]

Scan the car with VCDS.
Autopool in Iver are good with Audi's.

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[muradhakim]

yes indicator flashes. even the light in the boot also flashes (not sure why)

The frequency of the indicator are not the same. Frequency gets higher of the indictor lights, often alarm goes off sometimes, sometimes its the indicator, sometimes both, this all happens while I am driving in a normal speed. if I indicate left or right, hazard lights stops.

If I go to Audi They will charge me 96 pound +vat to find out what the problem is.

[Crasher]

Your optimistic, you are assuming it will only take 1 hour to find out what is wrong.

Whatever is wrong it is going to be either the central convenience ECU or the wiring around it.

If it goes off whilst driving it is not seeing that the ignition is on so the Line 15 is missing so on the 12 pin black connector check there is ignition live power at pin 7 on the blue/red wire.