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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 ...
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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 ...
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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 ...
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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 ...
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8 votes
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Standard mounting screw for vehicle relay

This type of addon relay is intended to be mounted to any convenient existing bolt that you have available. As there is no standard for what size bolts to be used in an engine bay or around the body, ...
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7 votes
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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.
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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.
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6 votes

How do you test relays?

You can easily test a relay in a few simple steps. The required materials are as follows Digital Multimeter (with continuity setting) 12V power supply (Optional) Aligator clips for hands-free ...
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  • 496
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 ...
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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 ...
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4 votes
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Replacing Starter Relay on Honda Accord 2003

Relay is here: That's in the driver's footwell. I believe it's above the fuse box, around the hood open latch. There's a plastic cover over the relays you'll have to pull off. There's one for the ...
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  • 313
4 votes
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Current from key to solenoid of starter motor relay

Here is more info than you would like http://www.aeroelectric.com/articles/strtctr.pdf The short of it is that it takes 8-10 amps to hold the solenoid in place while starting but the draw can spike ...
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  • 895
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:...
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4 votes

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 ...
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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 ...
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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 ...
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  • 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 ...
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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 ...
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  • 12.2k
3 votes

Electronic Flasher replacement for LUCAS FL5 to work with both -VE and +VE cars

Use an electronic flasher. I have no idea if Tung Sol is still in business, but they made a very nice electronic flasher that simply replaced the old bi-metal unit. True plug-and-play operation: ...
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3 votes
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Chevy Malibu 2009 won't start

It sounds as though it is one or two things going on here. First of all, did you check the serpentine belt which drives the alternator? Is it still on there and looking ready to do its thing? If that ...
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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.
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  • 11.5k
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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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 ...
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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.
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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 ...
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  • 9,459
2 votes

Standard mounting screw for vehicle relay

I doubt there is a standard. Most screws of this type are tapered metal screws which will fit the mounting hole. Every manufacturer could use a different screw, depending on the depth needed and what ...
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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.
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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 ...
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  • 1,186
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 ...
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