Fast Flashing Indicator

[pugpete1108 62 1 Cars]

i have a weird problem...

 

all the indicators were working fine until i took the car out for a drive round the block,came back and now the passenger side flashes fast??

 

i know usually when there is a fault on the circuit they do this but seeing as all the bulbs are working fine, i'm stumped?

 

they work fine on the hazard too

 

relay fault?

[Cameron 16]

Sounds like it, try another relay!

[pugpete1108 62 1 Cars]

here we go then, i aint got a clue what one it is? i'll just pul them until they stop

 

is it the same relay for the hazard and the indicator

[Daxed 7]

3'rd on in from the R/H side

 

Same relay for hazard/indicator

[jackherer 543]

If its not the relay its probably a bad earth.

[pugpete1108 62 1 Cars]

cheers guys will have a look tomorrow and see.

 

anyone know where it should be earthed? is it behind the pass headlight

[SurGie 54]

Yes, it usually has a plastic wrapping round it. It looks like a plug fitment. Its at the inner side, rad side of the front panel.

[Nickmatthewsrallying 0]

The plastic wrapping around the earth connectors on my car was fall of water. I ended up cutting out the block and putting rings on the ends of the earth cables (with solder connectors and heat-shrink) and just bolted the straight to the car works better then ever before now.

[pugpete1108 62 1 Cars]

i have replaced that block anyway with a screw in type thing boltes to the chassis so maybe the wire has come loose?

[pugpete1108 62 1 Cars]

right i have changed the relay and it still does it grrrr.

 

next check is the earths then, are all the indicators earthed in the same place??

 

and will all the bulbs still light if it has a bad earth?? should i check resistance on the earths to localize it?

 

im trying to get it ready for the mot next week and little bits keep popping up, its a pain in the arse

[pugpete1108 62 1 Cars]

this i driving me nuts

 

i have run a good earth direct to each bulb yet it still it flashes fast?

 

is this an mot failure ? surely as long as they all flash or must it be a set speed?

[jackherer 543]

It might be worth checking all the bulbs are the correct wattage, if one or more are underpowered I suppose that would speed the flashing up.

 

IIRC there is a MOT failure test point related to indicator flashing speed, it has to be between 60-120 in a minute or something.

[hcmini1989 16]

It might be worth checking all the bulbs are the correct wattage, if one or more are underpowered I suppose that would speed the flashing up.

 

IIRC there is a MOT failure test point related to indicator flashing speed, it has to be between 60-120 in a minute or something.

sounds spot on if the bulb isnt producing enough resistance then it will seem like a bulb has gone so just check them all ,And it is an mot fail

[pugpete1108 62 1 Cars]

i'll have alook but i'm sure it was working fine then i went for a spin round the block and when i came back it was doing it??

 

that side is from a 309 though from the scrappy (complete bulb holder and bulb) so i dont know if that will make a difference?

 

failing that i am going to have a look at the hazard switch as looking at the haynes wiring diagram all the control of the flashers (even the indicators) come from there. i have changed the switch for a 405 one so it could be a dodgy wire behind there.

 

and your both right it is an mot fail it must be between 60-120 flashes per min.

Edited June 11, 2010 by pugpete1108

[welshpug 1,666]

I'd try the hazzard switch, as you have said all the indicator wiring passes through it and they can cause some quite strange faults

[willmounsey 1]

Have you looked at the condition of the light itself?

 

My passenger side rear light is giving me indicator problems and its due to the board itself (where bulbs and wires connect to) being corroded.

 

There's the metal plate thing which runs the power through to the light sockets , this has rusted quite badly in places on mine and is causing erratic indicators. (sorry now this is the drivers side i dont have a pic of the other to show the rusty bits)

 

I've used the rear light off my van and it clears this problem up, might be worth trying a different light?

 

 

Will

[pugpete1108 62 1 Cars]

Have you looked at the condition of the light itself?

 

My passenger side rear light is giving me indicator problems and its due to the board itself (where bulbs and wires connect to) being corroded.

 

There's the metal plate thing which runs the power through to the light sockets , this has rusted quite badly in places on mine and is causing erratic indicators. (sorry now this is the drivers side i dont have a pic of the other to show the rusty bits)

 

I've used the rear light off my van and it clears this problem up, might be worth trying a different light?

 

 

Will

 

i did take a quick look at the rear light, but it was getting dark and i couldnt actually figure out how to remove the light assembly

[pugpete1108 62 1 Cars]

gold star for jackherer

 

turns out the bulb is the fault. the one from the 309 is fine but for some reason the original is playing up.

 

i switched the bulbs around and the fault followed, could just be a missmatch as one was huge and one was tiny.

 

i'll grab a new pair today.

 

cheers guys

[welshpug 1,666]

doh, sounds like a 5 or 10w bulb instead of 21w