Car Warning Light

[Diamond123]

Hi,

I recently bought the Ibiza FR LED Rear Lights for my Seat Ibiza which had the old crappy bulb version in before. I replaced them and now im getting a Yellow Bulb with an Exclamation mark in the middle, from the handbook it says "Bulb Failure", i never had this before considering the car is less than 1year old.

Ive checked all the lights, indicators, reverse, brake etc but everything is working. Just to be sure i replaced the bulbs but no joy.

When i start the car i get no warning lights, as soon as i turn the lights on it comes up and stays on until i restart the car.

Any ideas why this happens or how to fix

 

[Diamond123]

 

[Big Col]

Any ideas why this happens or how to fix

Because you fitted the LED clusters.

Replacing normal bulbs with LEDs very often brings on the bulb warnings.

You need to get access to vcds to fix

 

[Diamond123]

I mean I have changed the entire rear light unit not the bulbs inside. I've fitted it with the FR facelift rear lights I think is what it's called.

 

[NetworkMan]

The effect is the same. If the lamp fails it does not draw any current and the car detects this and turns on the warning. LEDs draw far less than current than filament lamps and so the warning has come on. You need to stop those LED lamps from being monitored by the lamp failure detect system. You can do this with vcds. IIRC you can choose just which lamps are monitored and which not.

 

[Diamond123]

Ok thanks, I'm leaving it into the garage as I don't have a diagnostic tool. Will let you know if this fixes it. The person in the garage also said the same thing that LEDs draw less power hence the car believes the bulb is nearly blown or defective.

 

[who.am.i]

Could be fixed via vagcom or canbus adapters.

vag familia

 

[Diamond123]

Took to dealer and stranglely enough on their diagnostic tool thing it doesnt show there is any faults :/ despite me having a yellow warning light. Dealer is convinced the car needs software updated to reflect Seat models that have the LED lights factory fitted. Seems to be the LED strips that are the cause of grief since they draw less voltage. Have to leave it in again for them to do this

 

[skyrocketeer]

That sounds about right. the lighting control unit will need telling that it has LEDs fitted, rather than hot-filament lamps, and will change it's expectations with regard to current draw.

<pedantic>
LEDs draw less current - not less voltage
</pedantic>

 

[propane94]

Took to dealer and stranglely enough on their diagnostic tool thing it doesnt show there is any faults :/ despite me having a yellow warning light. Dealer is convinced the car needs software updated to reflect Seat models that have the LED lights factory fitted. Seems to be the LED strips that are the cause of grief since they draw less voltage. Have to leave it in again for them to do this

Interesting, I had a bulb warning light come up on mine ages ago, plugged my can-bus adapter in to check which bulb it was and no errors. Seems the ecu thinks its not worth storing these as they are not essential equipment errors??

There should be a bit some where in vagcom (don't know where) which when enabled, tells the ecu the lights are LED's, and should remove your error.

 

[skyrocketeer]

Interesting, I had a bulb warning light come up on mine ages ago, plugged my can-bus adapter in to check which bulb it was and no errors. Seems the ecu thinks its not worth storing these as they are not essential equipment errors??

Makes sense, as you'd need an ecu error code reset tool to change a bulb. I can see that getting tedious very quickly.

 

[Diamond123]

Took to a Seat dealer (the one I bought car from) and they fixed this for me for £20. The receipt says they coded it out of system. Seems have went away now

 

[jaybro187]

i did this for my fog lights, i replaced the bulbs with whiter cree leds and of course i got the error code. from help off here i bought a canceling cable for a fiver or something from ebay and jobs a good one

 

[IbizaMK5CupraDB]

I'd be grateful if Diamond 123 would keep me updated on this as I want to do the same upgrade to my car, I've always had bother with the canbus error on mine even with canbus error free side lights.

 

[Diamond123]

I'd be grateful if Diamond 123 would keep me updated on this as I want to do the same upgrade to my car, I've always had bother with the canbus error on mine even with canbus error free side lights.

I took this issue to my seat dealer, as someone else pointed out using a bus adapted doesn't throw up anything as the ECU doesn't store it as an essential fault hence why I wasn't able to find anything. The dealer coded it out of the system something which I'm lead to believe you need to know what your doing or else you'll mess something up.

 

[propane94]

I'd be grateful if Diamond 123 would keep me updated on this as I want to do the same upgrade to my car, I've always had bother with the canbus error on mine even with canbus error free side lights.

The canbus side lights are known to cause problems on the ibiza, most ibiza's have two side lights on each side. One led should not cause the problem, but two will. The only way round it without coding it out is to have one led and one bulb on each side.