Stop Light Not Working

[1905 adam 0]

Hi all,

 

If the STOP light no longer works on my 1987 205 gti 1.9 and it isn't the bulb, where would you suggest I look first?

 

Thanks,

[Anthony 1,000]

Oil pressure switch and the wiring to it (assuming that the low oil pressure light doesn't come on either of course)

[1905 adam 0]

But the oil pressure gauge on the dash is working and reads normal temperature, so how can it be that?

[Anthony 1,000]

The oil pressure gauge is driven from a different sender to the low pressure warning light.

 

The STOP lamp on ignition-on is triggered from the oil pressure switch.

 

Thus if the oil pressure switch/wiring isn't working, neither does the STOP light.

[1905 adam 0]

Ahhh! So which pressure switch do I need to check? ie where would I find it? Sorry for the dumb questions but I rarely have engine ancillary problems!

[Anthony 1,000]

There are two senders on the front of the engine block, underneath the inlet manifold and to the side of the alternator.

 

One is a large, mushroom shaped sender - this is for the oil pressure gauge.

 

The other is a smaller sender - this is for the oil pressure switch.

 

Each has a single wire with a spade terminal leading to it.

[1905 adam 0]

Anthony,

 

Thanks a lot... will check it out !