|
Forums34
Topics48,347
Posts813,068
Members9,208
| |
Most Online1,046
Aug 24th, 2023
|
|
|
|
Joined: Jun 2014
Posts: 188
L - Learner Plates On
|
OP
L - Learner Plates On
Joined: Jun 2014
Posts: 188 |
My roadster 2004 won't start. what was an occasional issue is now a problem as the dash ignition lights do not come on.
On examining the relays behind the dash there appears to be 5 in a group and a sixth that just sits in the wiring loom that i take to be the wipers.
My questions are :- what are the five in a line doing? ( I THINK THERE WAS A PREVIOUS THREAD ON THIS TOPIC)there is some corrosion on the lugs of one of them.
where can i get replacements as i am not sure if the descriptions on the internet search match those on the relay.
I seem to have 4 identical relays with a code 3085 868787a.
The fifth one is different.
Electrics isn't my thing so any guidance would be most welcome.
Paul
2004 Silver Roadster S1
|
|
|
|
|
Joined: Dec 2008
Posts: 21,868 Likes: 167
Roadster Guru Member of the Inner Circle
|
|
Roadster Guru Member of the Inner Circle
Joined: Dec 2008
Posts: 21,868 Likes: 167 |
DaveW
'05 Red Roadster S1
'16 Yellow (Not the only) Narrow AR GDI Plus 4
|
|
|
|
|
Joined: Feb 2016
Posts: 7,924 Likes: 217
Talk Morgan Guru
|
|
Talk Morgan Guru
Joined: Feb 2016
Posts: 7,924 Likes: 217 |
The numbers you quote Paul are the individual generic pin codes for a 5 pin relay with changeover contacts, so not defining it. Typically though they would be cube shaped 5 pin 12 volt 40 amp mini relays with diode protection (important) available on line or at all good auto electric outlets. They are sometimes supplied with a metal mounting lug which needs to be removed. The wiper relay is a dedicated item however.
Always wise to carry a couple of replacements with you which can be quickly plugged in if only for fault finding
The five similar ones in a row are starter, fuel pump, ignition/ECU, rad fan low speed, rad fan high speed as viewed right to left.
If no dash lights with ignition on I would suspect the ignition/ECU relay. If simply starter not working then the starter relay.
Richard
2018 Roadster 3.7
1966 Land Rover S2a 88
2024 Royal Enfield Guerrilla 450
1945 Guzzi Airone
|
|
|
|
|
Joined: Jul 2007
Posts: 26,748 Likes: 419
Member of the Inner Circle
|
|
Member of the Inner Circle
Joined: Jul 2007
Posts: 26,748 Likes: 419 |
The fuel pump one also fires up the ECU and the dash ignition etc.
JohnV6
2022 CX Plus Four
2025 MG ZS EV aka Trigger
|
|
|
|
|
Joined: Jun 2014
Posts: 188
L - Learner Plates On
|
|
OP
L - Learner Plates On
Joined: Jun 2014
Posts: 188 |
many thanks gents.
It looks like its the fuel pump relay which is showing signs of corrosion.
I shall change the relays over to see if it fixes it.
Paul
2004 Silver Roadster S1
|
|
|
|
|
Joined: Jul 2007
Posts: 26,748 Likes: 419
Member of the Inner Circle
|
|
Member of the Inner Circle
Joined: Jul 2007
Posts: 26,748 Likes: 419 |
JohnV6
2022 CX Plus Four
2025 MG ZS EV aka Trigger
|
|
|
|
|
Joined: May 2015
Posts: 327
Learner Plates Off!
|
|
Learner Plates Off!
Joined: May 2015
Posts: 327 |
It's a good idea to buy diode protected relays, I use the Durite range for quality and reliability. Ensure that you get the correct pin orientation to suit your existing sockets, oh and correct current rating of contacts, i think i used 30amp throughout to be on the safe side.
|
|
|
|
|
