Starter Relay Fuse Keeps Blowing

Fuse 21 keeps blowing for the starter relay, have replaced relay, truck starts when a screwdriver is contacting both poles on the relay, have tried to trace this orange wire with a thin red stripe but there are just too many wires and it dissapears into the a wiring harness, don't know where it could be shorting out. The starter relay and the glow plug relay are the same.

Mercedes E Class W210 E320 1999 Fuse Box Diagram Fuse Box Mercedes E Class Mercedes

Discussion starter · #1 · oct 5, 2012 (edited) only show this user.

Starter relay fuse keeps blowing. Switch may also be bad internally. Something is happening that is increasing the current so it is not bad wires and nothing stands out. I was riding to work and my instrument cluster failed.

After that would start using the multi meter to. By removing that relay i was able to keep riding (bike ran fine just had to. You also disabled the starter relay.

What you need to do is go out and buy a 60 watt old style headlight from any auto parts store. When i turned on key.no blow, and. As stated in the cucv wiki, the starter relay is a notorious weak point of the cucv's, and the doghead starter relay mod should be taken care of asap.

There is a 10 amp fuse that says starter relay that was blown. Would start with checking the ignition switch connections. Then disconnect the starter lead and see if it blows the fuse.

If contacts are corroded/worn the fuse is trying to power the starter motor. A fair amount of components get power when the key is turned on. A lot of people on this site.

Does anyone know if a bad solenoid will cause this fuse to blow. To date my fuse has blown 3 times from approx. Bad relay is most likely culprit.

Discussion starter · #1 · apr 7, 2008. With the key turned on (but don't try to start the engine), the light will glow whenever the short is present. Replace the starter relay in the fuse box behind the glove box.

It is originally a 20amp which blew and at the time all i had was a 25 amp and it worked until yesterday when it also blew. The fuse for the starter relay keeps blowing. Could also be a week battery or a faulty starter solenoid causing too much amp draw.

You could have disconnected the diode, grounded the lg wire from the ecm and g/r wire from the starter relay and it probably would have started. The fuse only powers the control coil portion of the starter relay. It takes about 15 minutes and the relay is pretty cheap.

I have had to replace the starter relay before, and i used the glow plug relay in it's place. I took the relay in the fuse box out, replaced the fuse. If that's the fuse that is blowing, my previous message applies.

When you come to one that makes it stop then you have it isolated. I'll pull the glow plug relay and see if that changes anything. Could be a loose battery connections, corrodded battery connections on the battery, fuse box, starter relay, starter, etc.

The fuse near the battery is labeled starter relay & ignition and is supposed to be 40a. The fuse under the i/p is supposed to be 20a, and labeled starter relay & radio. 2006 starter relay fuse keeps blowing.

Starter motor is goosed and jamming, which is why its blowing the fuse, it has its own trigger wire the purple wire coming from the front sam to the starter. I guess that frequency will increase. Everytime i turn my key to the on position the starter relay fuse blows.

Also, if you have problems with fuses blowing in any car in the future and need to trace down an electrical problem, there are manual reset circuit breakers available that might fit in some fuse locations. If the fuse blows then the circuit has a chaffed wire and is grounding out on the chassis or the clutch switch jumper under the dash is faulty. W211 starter relay fuse keeps blowing thanks for the replies.

Ron, the coil wires are brown/ground and orange/ blank for batter pos to coil of remote solenoid. Pull the battery wire off solenoid and see what happens when you try and engage starter. Fab up some wires to it that you can plug in place of the fuse.

Then it blew 5 fuses in a row and i had to have towed to a shop. When the contacts are in good condition, they pass current back through the double solenoid windings and reduce draw through fuse. My car intermittently blows the starter fuse when starting.

The shop said they isolated the problem to the fuel pump and replaced it. Joined mar 31, 2008 · 15 posts. A layman's test is to swap a relay that controls something you can test easily with the relay in question, if there is a duplicate relay in the box.

It started out doing it once every couple of months and would always start with a second fuse. My starter relay fuse keeps on blowing. If it's blowing, there's a short in the winding or a short between the relay and the theft deterrent module.

If the fuse does not blow then remove the tan/red wire from the starter relay on the firewall and reconnect the tr sensor. It wouldn't start because the ecm didn't know if the bike was in neutral or if the clutch was pulled in with the diode disconnected. I put another one in, and when i turned key on, it blew before even trying to start.

Joined oct 14, 2009 · 77 posts. If its blowing the fust at the relay you start uplugging any wire or connection that is power from that source. It that the starter relay fuse keeps blowing.

Now start wiggling the wires of the circuit fed by that fuse while watching the light. Unplug it and then try to start, does the fuse blow? Turning the key to start (thanks for clarifying that) energizes the relay coil.

The reason its there is because the starter forms part of the drive authorisation system and needs to be switched by the sam, which is in effect another ecu in the link. Ron, the coil wires are brown/ground and orange/ blank for. What's strange is i got it to.

It then worked fine for months. Hi all, recently bought an 06 and it's been going well for a month or so but suddenly when riding offroad one afternoon it started to run rough, lost power and i heard a buzzing from the front relay (behind the headlight). I have been looking at prices for replacement starters and they range from £393 + vat for a replacement from a merc dealer to £120 for a lucas service exchange.

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