indicator relay 129 sl. wiring diagram?

battwell

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Website
www.mercuryleisure.co.uk
my relay seems intermittant and i dont want to spend £300inc vat for another!
i have spent all day playing with it, talking nice and even tried swearing but to no avail yet!
i have tightened all pins on the connectors, checked most of it for dry joints.

i have almost completed a wiring connection sheet that i cant seem to manage to finish cos it got dark! can anyone help fill in the gaps?

plug 1
1. hrs output black
2. hrs +ve red/white (heated rear screen only)
3 grey????
4 n/c
5 green/black *2 ?
6. -ve brown

plug 2

1. n/c
2.
3. rhs signal from switch
4. n/c
5. n/c
6.
7. +12v permanentb red/white
8. +12v accessory position. black/yellow
9. black/yellow/red. hazards from switch.
10.
11
12.
13. left indicator from switch
14. wipers speed3
15. black/white*2 lh indicator outputs
16.
17. black/green rh indicator from switch
18.
19. black/green*2 rh indicator outputs
20. black . wipers speed 1

its powered by fuse 10.

mine is intermittant with both + feeds and neg good.
makes no difference with heated screen on/off etc but when it goes "dicky" heated screen wont latch, speeds 1 and 3 on wipers disapear and no indicators or hazards.

if there is a wiring diagram available id be gratefull!
 

television

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Your Mercedes
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I do have one somewhere, I will post back in the morning with the number on mine
 

Don911

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I had exactly the same problem , and was completely resolved by replacing one of the relays [there are 2 relays].
 

star

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Smart + others :)
On early 129's there were 2 relay's but later only have 1. does ur srs lamp fail to light up when the wipers fail???
 

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