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Author Topic: flashing door alarm light when starting  (Read 6799 times)

Offline pabinlove

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  • Posts: 123
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  • Model: Galaxy Mk2
  • Spec: 2000 1.9tdi 115
  • First Name: Paul
  • Region: East Midlands
flashing door alarm light when starting
« on: March 05, 2012, 05:32:44 PM »
 ??? hi has anybody had this trouble, car is hard to start very slow turn over changed glow plugs as 1 was dead, battery seams fine but am getting it dropped tested tomorrow, i have checked the alternator and it seams ok my meter was reading 12-14v i think, will check again to make sure. but i have noticed the red door alarm light flashing fast when turning over, when i have the car started it continues to flash then goes out after awhile,
I've been looking through some of the threads to find out but cannot find anything, i swear i saw something last week that it has something to do with the glow plug relay, but that maybe just be me reading a thread wrong :-[
If this has been put in another thread then i'm sorry to post the question again
Any help is most welcome  :)

Online Mirez

  • Pondering the next mod...
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  • Posts: 3658
  • Thanked: 143
  • Model: Galaxy Mk2
  • Spec: 03 115PS Ghia
  • First Name: Mark
  • Region: South West
  • Country: United Kingdom
Re: flashing door alarm light when starting
« Reply #1 on: March 05, 2012, 05:46:09 PM »
The flashing light indicates the immobiliser is doing something or has a fault -

The key has a transponder chip inside it which is read every time its inserted into the ignition barrel - since the car will start then theoretically the key and reader are ok. The most common cause for poor starting with the earlier diesels is relay 109, specifically it develops cracked solder joints internally.

Later car's got fitted with a revised part which can still cause issues but it much less likely to develop a fault however pre 2002 cars often have the older, black 109 relay. You can test the relay on a bench or short its terminals in the box to prove/disprove its faulty however on the Galaxy its a bit of a pain to get to so for the sake of 10/15 I would get it changed. The part number is: 1J0 906 381A from VW/SEAT as its one of their parts.

Chris has an excellent guide to accessing the relay here: Guide to accessing relays
03 Ford Galaxy 1.9 TDI 115 Ghia in Spruce Green Metallic
With cream leather interior, Full Bodykit, Remapped at 145bhp, Lowered on 18's
14 VW Tiguan 2.0 TDI 177 AWD R-Line in Deep Black Pearl
With panoramic sunroof, bi-xenon headlights remapped at 205bhp.
08 Ford Transit 2.2 TDI 115 in Frozen White
With retrofitted everything except another slidey door! :)

VCDS HEX/CAN - Scans/Coding done in Wiltshire in exchange for winegums! :)

Offline pabinlove

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  • Posts: 123
  • Thanked: 0
  • Model: Galaxy Mk2
  • Spec: 2000 1.9tdi 115
  • First Name: Paul
  • Region: East Midlands
Re: flashing door alarm light when starting
« Reply #2 on: March 19, 2012, 07:05:01 PM »
hi i've replaced relay 109 it's now a grey one the one i have removed is a white one. Starting seams to be ok but will see how it is in the morningto see if any more door light flashing

Offline pabinlove

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  • Posts: 123
  • Thanked: 0
  • Model: Galaxy Mk2
  • Spec: 2000 1.9tdi 115
  • First Name: Paul
  • Region: East Midlands
Re: flashing door alarm light when starting
« Reply #3 on: March 20, 2012, 04:22:53 PM »
changed relay 109
struck up this morning very slow turn over, but fired up, door light did flash for abit then stopped, when idling it seamed fine no erratic behaviour, will get battery check again just to make sure.
When struck up later today again slow turn over but this time no door light.
I have checked the alternator for out put, but can you please tell or show me where to put the probe again just to make sure I'm not getting a false reading

Online Mirez

  • Pondering the next mod...
  • *
  • Posts: 3658
  • Thanked: 143
  • Model: Galaxy Mk2
  • Spec: 03 115PS Ghia
  • First Name: Mark
  • Region: South West
  • Country: United Kingdom
Re: flashing door alarm light when starting
« Reply #4 on: March 20, 2012, 05:14:24 PM »
The easiest way is to measure across the battery terminals with the engine running and no loads on (ie no A/C, lights etc), 14.4V is the ideal and .4 +/- is acceptable. Next load the alternator by turning A/C, headlights and the rear defroster on and repeat the measurement - a good, fully functional alternator should load the engine accordingly and the voltage should still be around 14.2 - anything lower then 13.3(ish) and the alternators not working properly.

If you have an assistant turn things on then its normal to see the voltage dip below this threshold momentarily whilst it catches up.
03 Ford Galaxy 1.9 TDI 115 Ghia in Spruce Green Metallic
With cream leather interior, Full Bodykit, Remapped at 145bhp, Lowered on 18's
14 VW Tiguan 2.0 TDI 177 AWD R-Line in Deep Black Pearl
With panoramic sunroof, bi-xenon headlights remapped at 205bhp.
08 Ford Transit 2.2 TDI 115 in Frozen White
With retrofitted everything except another slidey door! :)

VCDS HEX/CAN - Scans/Coding done in Wiltshire in exchange for winegums! :)

Offline pabinlove

  • *
  • Posts: 123
  • Thanked: 0
  • Model: Galaxy Mk2
  • Spec: 2000 1.9tdi 115
  • First Name: Paul
  • Region: East Midlands
Re: flashing door alarm light when starting
« Reply #5 on: March 20, 2012, 09:40:09 PM »
thats great thank you

 

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