12
votes
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Is it possible to repair an intermittent or flaky turn signal flasher relay?
Yes you can often repair turn signal flashers!
A variety of things can be wrong: here's one of them. Solder joints on the relay printed circuit boards are especially vulnerable to stress cracks, due ...
- 397
11
votes
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Mini Cooper 2003 - Changed lights to LED, insanely fast indicator lights now
The reason for this is LEDs don't draw as much power as regular incandescent lights do. By putting the LEDs into the vehicle, you are making the vehicle believe the lights are out because of the lower ...
- 153k
8
votes
Why do cars still use mechanical blinker relays?
I can think of several reasons straight away:
Cheap
Easy to replace
Have a very distinctive click that makes it obvious when they are on, and when a bulb has failed
Are very well understood
Anyone ...
- 18.6k
8
votes
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Meaning of relay acronyms: H-LP, E/G, DIM etc
Legend to Codes
E/G - Main is the relay for the Radiator fans.
EFI - Is the electronic fuel injection relay.
DIM - is the headlight dimmer relay.
H-LP - is the headlamp relay.
MG/C - is ...
- 10.7k
7
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Positions of relays in fuse box of Honda Accord 2003
The relays are the same
They should be interchangeable.
Here is a parts diagram.
They control components of the fuel system.
- 33k
7
votes
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How can I extract this relay?
Just pull the relay out from the terminal block.
There are 4 or 5 terminals which grip tightly so that the current does not cause any heating damage.
- 34.6k
6
votes
Burning air pressure switch
The power of your compressor is given by P = V x I = 12 x 30 = 360 W. This sounds about right.
It sounds as though your compressor is badly made and that the pressure switch is not adequate for the ...
- 221
5
votes
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What is the formula to determine a relay for aftermarket lights?
You need to know up front what the Amperage of the lights are in the first place and work from there. In the case of the light in the link is has a 72W draw on it. @ 12vdc, this calculates to 6Amps ...
- 153k
4
votes
Relay for Auxiliary Fog lamps of 54 w (27W x 2 lamps)
54 watts at 12v equates to 4.5A. That's not a lot. Any 20A automotive relay will the job. You can get both the relay and socket for the relay at almost any parts store. Here's what a 4-post looks like:...
- 153k
4
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Positions of relays in fuse box of Honda Accord 2003
It is very likely that the two relays will be the same configuration, since their positions can be interchanged. But, there could be differences. One thing you can do to check is to read the part ...
- 14.4k
3
votes
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What are the common causes of inconsistent/dead flashers?
If they work inconsistently, it may indicate bad electrical contact.
In older cars the technique used for the on/of nature of flashers, is based on heat caused by current. If there's not enough ...
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3
votes
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Brake lights no longer work on a Volvo V70
My suggestion would be to chase the wiring directly rather than trying to identify all the parts of a system your mechanic did not even identify for you.
If possible, find an electrical diagram for ...
- 9,326
3
votes
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Golf MK4 Window Motor Click and Window wont open
Thank you guys for your advices. Yesterday i bought 2 regulators for the 2 doors. Now it works perfectly. 2 days ago the driver's door stuck in central locking and the window motors circuit doesnt ...
- 335
3
votes
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Correct Relay Splicing Methodology (Backup Camera & Reverse Wire)?
Neither of those diagrams would work the way you want them to.
In diagram one power never reaches the lights as up to pin 86 is grounded.
In diagram two power reaches the lights, but pin 86 is never ...
- 10.7k
3
votes
Correct Relay Splicing Methodology (Backup Camera & Reverse Wire)?
You can't do that either way you tried. You need power +86 from the reverse wire, and a suitable ground path +85 for the other side of the coil. You'll have to add wire and find bare metal or ...
- 12.4k
3
votes
Honda Accord 2005 Headlight relay location
The headlight control unit is in the sealed portion of the box.
It is a CAN network controller and not just a relay.
If it has failed the whole box is to be replaced.
- 11.6k
3
votes
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Very Strange Starting?/Electrical Issue
The problem lies in your connections to the battery or ground. I'm not sure how you tested them, but from your description, this is a classic case of losing connectivity from either the ground strap ...
- 153k
3
votes
Starting an automatic for the lazy mechanic
If your starter relay is similar to this relay on the Farnell website.
Then you need to connect the pins labelled 87 and 30 together.
- 24.9k
3
votes
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Why does a relay not short the battery?
No, you will not be shorting the battery. The relay COIL, for a 12V relay, is designed so that when it's energized (i.e. connected between 12V and ground) will only pass enough current to close the ...
- 12.1k
2
votes
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How to connect a 11-pin flasher relay so that turn signal dash indicator lamps work?
How 11-pin flasher relays work internally. See this wiring diagram:
It is for the BOSCH 0 335 210 250 flasher relay (same as yours, only for 12V). The diagram shows the internal components of the ...
- 251
2
votes
Standard mounting screw for vehicle relay
There is no standard fitting for relay mounts, and so thus the generic hole. Hella makes a 20/40 amp mini SPDT that has a metal bracket rather than a plastic bracket.
They also sell connectors with ...
- 1,186
2
votes
How many amps should my car pull while it is turned off?
I've come across this many times.
The acceptable current draw should be around 0.03Amps. If that can't be achieved upto 0.075-0.1 can be acceptable if the vehicle is driven most days.
- 2,781
2
votes
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Diagnosing fuel pump relay on 2004 Acura TSX
The power in the in pins 1 and 3 proves that fuse 19 is OK and that the PCM will turn on PGMFI relay #1 and further that said relay will supply power to the fuel pump relay (PGMFI relay #2). It does ...
- 11.6k
2
votes
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Subaru Impreza rear wiper relay?
Do you mean you're unsure whether the part number is 12V5B-1T or 642N? Odds are good it is one of those. Try searching for each (e.g., feed "12V5B-1T relay" to the Google) and see what you get. It is ...
- 14.4k
2
votes
What are the common causes of inconsistent/dead flashers?
Common Issues -
Poor Grounds
Moisture either in the bulb housing (causing a short)
Moisture around the fuse box (or where ever the flasher relay is located)
Incorrect bulb type/material (some older ...
- 21
2
votes
Motorcycle won't start without jumping the solenoid
The "solenoid trick" pretty much guarantees that the solenoid is good. When you short it with the wrench you're simulating a start signal on the small terminal. When you do that the solenoid does its ...
- 14.4k
2
votes
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Help tracking down a battery drain issue on a 2007 Vauxhall Corsa
If the relay is not defective, then I would check for any chaffed or damaged wires under the bonnet or under the dash - this could cause the relay to energise. One other possibility is someone has mis-...
- 34.6k
2
votes
Accepted
How to replace the door lock relay on Honda CRV 2005
The door lock/unlock relays are built into the multiplex unit on that year CR-V and are not serviceable (See Figs. 1 & 2). To replace it you'd either have to replace the whole multiplex unit or ...
- 10.7k
2
votes
Why do we use a relay and switch to control on/off of horn circuit instead of using a simple swtich?
You really aren't understanding how a relay works or what it does. It states right in the quote that the control wire can only handle .25A and is very thin. The horn itself may require 24A or more.
...
- 153k
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