Indicators - Lights work, dash light does not.. but the bulb is fine...?!

[Chris_Beer]

The Clio has had this for a while now, the left indicator dash bulb stopped working around 3-4 months ago. Today I went about sorting what I thought the problem was.

The indicators (left or right) work with no issues on the exterior of the car (Headlights, Rear lights, side repeaters). The hazards also work fine.

Inside the car, the dash clocks only illuminate the right indicator bulb, the left does not light up, even with the hazards on. With this in mind, I assumed a blown bulb.

Stripped the dash/clocks out today, can't say removing the needles are ever enjoyable though.. and the bulb works fine!

Built the car back up... still doesn't work in the car! I tried disconnecting the hazard light switch, also the same, tried the dashboard light / clocks test but the indicators are not part of the test.

So... anyone else have any ideas or had similar? :banghead:

 

[McGherkin]

Try putting voltage on pin 3 (positive) and pin 24 (earth) on the 30 pin connector. The indicator should light up.

 

[Chris_Beer]

Which 30 pin connector are we talking about here Calum? Under bonnet behind battery one?

 

[McGherkin]

The one on the back of the clocks. Will rule out a fault within the clock unit.

 

[Chris_Beer]

Ah the grey plug you mean, on the right like these clocks?

Pin 3 being the top, third one in and so on?

 

[McGherkin]

Yeah, that's the one.

 

[Chris_Beer]

Right.. clocks back out.. multimeter on the plug, continuity setting, pin 3 positive, pin 24 earth.. nothing...

Tried a battery and some wire on the pins and it lights up also tried Pin 2 and the other indicator also works... so both indicator bulbs light up from the plug on the back of the clocks..

time to test the continuity on the cars plug I guess... and hope for an iffy connection... not nothing :dead:

 

[Ianboom]

Remember the lights are Led's and act as diodes so you'll only get continuity one way.

Tried measuring the voltage at the plug??

 

[Chris_Beer]

So... continuity on the cars plug to dials, both left and right indicator pins beeped on the multimeter, with the hazards on got intermittent beeping as the exterior bulbs lit up... all fine!

Measured voltage... both reading well on and off when the lights are going... all fine!

So connected dials again, no left indicator!

Anyway after half an hour of wiggling wires.. On it came!!! I noticed one of the pins in plug loose, clicked it back into the plug, then the plug wouldn't go into the dials themselves.. the pin in the dials was every so slightly kinked.. probably why the pin came loose in the cars plug...straightened the pin and re-seated all the pins


And...


SORTED!!

Bit school boy error I guess lol

Thank you for all the help

 

[McGherkin]

Great news mate

 

[Chris_Beer]

I found your pinout in another thread.. I'll copy it here also, even though it's PH1 it was hugely helpful when needed at short notice

Thanks pal

 

[McGherkin]

I think that's Ph.2 actually as the dials I've been fiddling with are (I believe) Ph.1 and the pinouts I have for them don't match up.