Brake lights malfunctioned

An alchemy of sparks, copper wire and earth

Moderators: User administrators, Moderators

Locked
richard.w
Registered user
Posts: 39
Joined: 30 Jan 2007, 18:53
80-90 Mem No: 2156
Location: North Somerset

Brake lights malfunctioned

Post by richard.w »

Both the two of them have gone dead.
Bulbs are ok and the fuse is in one piece.
I've checked the wiring diagram and see that the next port of call is the brake switch, where is it please?
What may have happened and, if it's not the brake switch, where do I look next?
Electrics not my forte so would really appreciate a layman's answer.
Many thanks,
Richard
Go forth and enjoy!
Member 2156
1981 Diesel 1600
watercooled LHD

Red Westie
Registered user
Posts: 706
Joined: 06 May 2007, 19:41
80-90 Mem No: 4712
Location: Nottingham UK

Re: Brake lights malfunctioned

Post by Red Westie »

The brake light switch/switches are underneath the speedo binnacle.
Pull it up from from the rear (next to the windsrceen) 4 screws a speedo cable and several plugs to gain access to the master cylinder and brake light switch/switches.
If you are quick they can be changed without the need to bleed the brake system.
Fluid pressure operated.

Martin
On wings like angels whispers sweet
my heart it feels a broken beat
Touched soul and hurt lay wounded deep
Brown eyes are lost afar now sleep xxHayleyxx

richard.w
Registered user
Posts: 39
Joined: 30 Jan 2007, 18:53
80-90 Mem No: 2156
Location: North Somerset

Re: Brake lights malfunctioned

Post by richard.w »

Many thanks, will be on to it shortly.
Richard
Go forth and enjoy!
Member 2156
1981 Diesel 1600
watercooled LHD

fullsunian
Registered user
Posts: 1516
Joined: 01 Jun 2008, 23:46
80-90 Mem No: 5092
Location: Grantham

Re: Brake lights malfunctioned

Post by fullsunian »

You may not need to change the switch, as the terminals often corrode and fall off :ok
Mmm what's that strange smell from my exhaust...

richard.w
Registered user
Posts: 39
Joined: 30 Jan 2007, 18:53
80-90 Mem No: 2156
Location: North Somerset

Re: Brake lights malfunctioned

Post by richard.w »

Thank you, both.
Being of a somewhat nervous electrical disposition I rechecked the fuse, the wiring diagram and the Haynes Aircooled.
The required fuse should be 8A, the one in slot No. 8 of the fuse box is 25A (very grey with a thick metal strip). Now I appreciated this may not be a problem, but why would a higher rated fuse be there?
Richard
Go forth and enjoy!
Member 2156
1981 Diesel 1600
watercooled LHD

richard.w
Registered user
Posts: 39
Joined: 30 Jan 2007, 18:53
80-90 Mem No: 2156
Location: North Somerset

Re: Brake lights malfunctioned

Post by richard.w »

I heeded your previous advice but also went down the road of checking further the electrics.
I wouldn't like you to think me rude and would just like to point out my additional post
'Brake Lights - Electrical'
where I'm still struggling to resolve my problem.
Thanks,
Richard :oops:
Go forth and enjoy!
Member 2156
1981 Diesel 1600
watercooled LHD

Locked