16 votes
Accepted

Why do LED running lights turn off while the turn signal is blinking?

The main purpose for this is so other drivers can see your turn signal. The LED lights are so intense, they do not allow the oncoming driver to be able to see the turn signal. By turning the LEDs off, ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
12 votes
Accepted

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 ...
Bryce's user avatar
  • 397
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 ...
Rory Alsop's user avatar
  • 18.6k
6 votes
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Brake lights and turn signals don't work (but head and tail lights do) on 1998 Ford Expedition

On the Expedition the hazard, lower brake lights, and turn signals all route through the multi-function switch. Gain access to the multi-function switch connector and back probe the light green wire ...
Ben's user avatar
  • 10.7k
5 votes

Where is the part of the car that senses the i-key?

Your BCM receives the signal Nissan uses what is called a BCM or body control module. The BCM on your car controls the following Security (key fob synchronization, door locks) Turn signals Wipers ...
DucatiKiller's user avatar
  • 32.9k
5 votes

Where is the part of the car that senses the i-key?

For the remote entry receiver see number 11 in the diagram below. The interior key antenna is located under the center console number 13 and inputs to the body control module seen in number 1 of the ...
Ben's user avatar
  • 10.7k
4 votes
Accepted

corner light (signal light) glass cover is destroyed, how can I make one?'

Generally, when looking for harder to find parts such as this signal light my first thought would be to check online retailers like Rockauto, etc. However, this turned out to be a no go as this car ...
Techlord's user avatar
  • 643
3 votes

How to diagnose if sporadic turn signal functioning is signal flasher or signal combo switch?

Since its sporadic it is more annoying to troubleshoot, but you should be able to check for voltage after the combo switch and see if that is consistent. There should be continuous voltage to charge ...
kyle_engineer's user avatar
3 votes
Accepted

94 pontiac transport - direct shorting of blinker / brake light circuit - fuses blowing

Blowing a fuse is a pretty good indication of a short circuit. If you have a DMM (digital multi-meter) try some basic tests: With the fuse out, read between the prongs of the fuse socket and ground (...
dlu's user avatar
  • 14.4k
3 votes
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What would cause a solid turn signal indicator?

It sounds like you could have a faulty turn signal relay. A relay is a piece of electronics which flashes the light on demand. They are generally cheap and easy to replace, so I would start there. If ...
GdD's user avatar
  • 15.7k
3 votes

Is it possible (or practical) to repair a turn signal cancel switch instead of replacing it?

The last time (many years ago) I changed out a turn signal switch it was a PITA because of all the anti-theft devices wrapped around the steering column. By the time I got to the switch I was cursing ...
Gumby's user avatar
  • 31
2 votes
Accepted

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 ...
tanius's user avatar
  • 251
2 votes

Volvo Turn Signal Light Problem

Almost certainly a poor connection within the bulb holder. You might be able to clean up the connections within the holder with a fine bit of sandpaper or "wet and dry", then adjust them with a tiny ...
Nick C's user avatar
  • 28.7k
2 votes

2003 Buick Century dies when left turn signal is used in the dark/ right blinker stuck

You can try to look for a battery drain as shown in this video by Scotty Kilmer. If you find any drain in the battery you can fix it and this may solve to whole problem. EDIT: In the video Scotty ...
Gabriel Diego's user avatar
2 votes

Passenger front blinker, rear blinker & brake, and middle brake lights all out

Take a look at the wiring diagram below. The important clue is you said the middle brake light isn't working. The CHMSL (Center High Mounted Stop Light) works only from closing the dedicated relay. ...
SteveRacer's user avatar
  • 12.4k
2 votes

2010 Chevy Cobalt electrical issues?

On our '07 Cobalt, (1) I have the same non-canceling turn signal problem. I believe it's a mechanical issue. This guy says he has a fix, and an explanation. (Long, lots of pix, I'm not going to ...
George's user avatar
  • 1,113
2 votes

Rapid Turn Signal

This usually means that one of the left bulb indicators has failed. Inspect front, rear and side indicators with the indicator stalk engaged in the left position and replace the offending bulb.
Zaid's user avatar
  • 39.1k
2 votes

Turn signal problem and not understanding wiring diagram

Since car wiring is very complicated in modern cars, the wiring diagrams are generally split into individual functional areas. This diagram is just showing the indicator wiring, the missing wires that ...
HandyHowie's user avatar
1 vote

2005 Buick Rainier: Turn signals don't operate correctly and turn on the high lights instead

My guess would be a faulty turn signal switch. Diagnose the issue further by unplugging the switch checking the continuity on its terminals. A new aftermarket one costs about $100, plus labor, of ...
EᑎOT's user avatar
  • 929
1 vote
Accepted

One of the turn signals does not stay on

The problem was (in this case) the lightbulb. The lightbulbs contain 2 sets of filaments. One is for blinking and other is to stay on while the signal is not blinking. This is probably because they ...
Baran Zadeoglu's user avatar
1 vote

2011 vw Jetta 2.5 turn signal

I suspect you have a bad earth in your rear light cluster. The likelihood is that the tail light bulb is leaking voltage into the earth pin of the turn signal so when the system applies voltage to ...
Steve Matthews's user avatar
1 vote
Accepted

BMW E46 indicators not working

Fixed it. Took the Light Control Module out (a five minute job, as it's part of the headlight knob assembly) and noticed some damage to the PCB. Swapped it out for another one I got at the local ...
Shedworth's user avatar
1 vote

Turn Signal Malfunction [2010 Ford Escape Hybrid]

After trying to solve this problem for months with my local mechanic, I had my dealer replace the Smart Junction Box, it’s been a week and my turn signals are back to normal. Total cost after tax was ~...
Heather's user avatar
  • 11
1 vote
Accepted

Golf MK4 Turn signals not working

There is a separate fuse and a separate relay. You'll need to check both, and I hope the relay panel is a little easier to get to than it is on the MKIII, because that's a real treat. Check the ...
JPhi1618's user avatar
  • 13.3k
1 vote

How long do incandescent indicator bulbs last?

The life span of an incandescent light bulb is up to 50 times smaller than the one of an LED (in reality you can expect up to 1500-2000 hours out of an incandescent light bulb, but usually these ...
Andrei Grigore's user avatar
1 vote

What would cause a solid turn signal indicator?

Have you checked the bulbs in the turn signal lamps? Depending on the design of the flasher unit, one or more failed bulbs might mean there isn't enough current flowing to make the relay operate, and ...
Nick C's user avatar
  • 28.7k
1 vote

2002 Jeep Grand Cherokee Laredo turn signals

This isn't an entire solution, but your test of the hazard lamps leads me to believe the problem is within the following diagram... and most likely, from the view of my sofa, the multifucntion switch "...
SteveRacer's user avatar
  • 12.4k
1 vote

How to diagnose if sporadic turn signal functioning is signal flasher or signal combo switch?

If you are lucky, there is a separate flasher for the emergency flashers that uses a similar relay. If so, just swap them and see if the issue is fixed. Or you may swap one from another car, just to ...
john D.'s user avatar
  • 552
1 vote

turn signal blinks wrong direction

The indicator lever is probably spot on for the issue. There appears to be a triple-square fastener which attaches the steering wheel to the column. The guy in this video on air bag & steering ...
Pᴀᴜʟsᴛᴇʀ2's user avatar

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