Odd electrical problem

[PBCup]

As title, basically, when pressing the brake the light on the dash for the fog lights comes on. This light also comes on when indicating but in neither case does it actually turn the fogs on.
Also when the cruise is on if I indicate it switchs off.

Looks to me like the switch in the brake for the cruise to turn of is somehow cross wired with the indicator and fogs circuit.

Any ideas? Its a 53 plate 172.

Ta

 

[-J-]

Remove rear lights clean the contacts and bend the pins out a little to ensure a decent contact.

Job done

 

[PBCup]

Good stuff!!! ta mate!!!

 

[wristel]

i dit that and it became worse... but now after 3weeks it wors like a charm... i guess some groundin problems...

 

[Saner]

I had exact same problem, only cured by a new connector for me, so hopefully you'll be lucky!

 

[PBCup]

Done it and all is fine. Great advice thanks!!

 

[Struggler]

please feel free to use the search function in the future.

this common issue has been covered to death!

 

[sleekitwan]

FREE FIX - FINE NOSED long pointy pliers, take the rear light clusters apart, one at a time. UNPLUG the electrical connector. Use long-nosed pliers to grip head-on the EARTH connector PRONG it might be the third one down, from memory, trace the one that goes to metal track common to ALL the bulbs. TWIST THIS PRONG by just a fraction. You can WD40 it and re-assemble. Do both to be sure, but boy, have some people spent money on new light clusters - my spouse's mechanic waxed on about what a good deal he got her on a second-hand light cluster - GREAT BUT YOU DON'T NEED IT, THE CURE IS FREE. TWIST THE PRONG WITH FINE-NOSED PLIERS A FRACTION, WD40 AND RE-CONNECT. DONE, FREE!