Question about 2003 Harley Davidson FLHTC Electra Glide Classic

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Front Left signal illuminates but does not blink. Rear left doesn't illuminate at all. Both bulbs changed but problem persists. Right side signals operating.

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I would suggest the fault is probably with the REAR LEFT fitting.
The Front Left doesn't flash because the Rear Left doesn't light up at all - this means there is a lower power drain in the circuit than the normal level at which the flasher activates.
Most likely it is a bad earth.
One side of the bulb should be connected to the positive side of the circuit which runs from the +ve battery terminal, through the turn signal switch and the flasher unit and under normal circumstances would pulse 12 volts DC, turning the light ON/OFF, exactly as the Right Rear signal does. This side will be WIRES all the way to the bulb. It could be a broken one or a bad connection but is the least likely of the 2 possibilities in my experience. You can check this with a multimeter if you have access to one.
The other side of the bulb is the negative side of the circuit and will connect to the -ve side of the battery. Usually this involves using the frame of the motorcycle as part of the circuit and is where a poor connection is most likely to be found.
A visual inspection might reveal the problem - broken wire, loose screw or most likely a rusty or corroded terminal or Earth bonding point or similar. You can always compare it with the right-hand side if in doubt.
Hope this helps

Posted on Jul 06, 2010

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Alpha Romeo 156 My Left hand indicator light stays on continually, does not flash. and when I turn the hazard light switch on both indicators continually glow.


Generally speaking, symptoms of a bad or failing turn signal bulb are usually the culprit...in your case, either it's the front left or rear bulb. Varies for different vehicle makes...common signs include:
  1. turn signal light staying on solid
  2. or blinking very fast
  3. or either sides of the bulbs stop blinking altogether.
To test this, make sure you reconnect everything you disconnected.
Turn the left signal light on; go to the front of the vehicle, is the turn signal bulb illuminated? If it lights up, even though it is not blinking obviously the bulb is okay. If it doesn't, replace it- problem solved. You'll do the same procedure for the rear turn signal Is that lit up? If not replace the bulb and the problem is solved.
Another common failure is when the turn signal blinks really fast, same procedure as mentioned above.
If both bulbs for the left side and right side illuminate but don't blink, the problem is in the steering column turn signal switch.
If the left or right side blinkers don't work properly at all...then check the integrated hazard warning/turn signal flasher relay- that may be defective; again, that's usually the case if both sides of the signal light don't work.
If you are blowing any fuses related to the flasher system, you have an electrical overload in the turn signal circuitry.

Feb 12, 2017 | Cars & Trucks

1 Answer

2009 Impala rear lights not working


Turn Signal Lamps
The LT T/SIG and RT T/SIG fuses located in the underhood fuse block supplies battery positive voltage to the body control module (BCM) for turn signal and hazard lamp operation. When the turn signal switch is place in either the LEFT or RIGHT position, ground from G202 is applied through the turn signal switch signal circuit to the BCM indicating the turn signal request. In response to this signal, the BCM applies a pulsating voltage to the front and rear turn signal lamps supply voltage circuits cycling the lamps ON and OFF. The BCM also sends a message via GMLAN to the instrument panel cluster (IPC) to cycle the turn signal indicator ON and OFF depending on the position of the turn signal switch.
Ground for the turn signal lamps is supplied as follows:
• G101 provides ground for the left front turn signal lamp
• G100 provides ground for the right front turn signal lamp
• G302 provides ground for the left and right rear turn signal lamps

The LT T/SIG and RT T/SIG fuses located in the underhood fuse block are also used by the body control module (BCM) for stop lamp operation.
The brake pedal position sensor is used to sense the action of the driver application of the brake pedal. The body control module (BCM) provides both, a 5-volt reference voltage and low reference to the brake pedal position sensor. The position sensor provides an analog voltage signal back to the BCM that will increase as the brake pedal is applied. When the brake pedal is applied, the BCM will then apply battery voltage to the left and right stop lamp supply voltage circuits and the center high mounted stop lamp (CHMSL) supply voltage circuit illuminating the stop lamps. At the same time the BCM signals the transmission control module (TCM) and the engine control module (ECM) that the brakes are applied. Ground for all stop lamps is provided at G302.
The stop lamps on this vehicle will not illuminate unless the ignition is in the accessory, run, or crank positions. When the ignition is in the OFF position the stop lamps will not illuminate when the brake pedal is applied.

Did you check the fuse's. ? Wouldn't think it's a ground because right an left tail lamp Assembly's use same ground ! Did you check for B+ voltage at the bulb. with a volt meter ? Power is supplied by the BCM . Could be the tail lamp assembly

Jul 19, 2017 | Cars & Trucks

1 Answer

Only right turn signal works. The left side has failure on front and rear lights and the left indicator fails to light illuminate as well. I have changed front and rear bulbs but the problem still...


Ok, there is only a few things that could cause this. They include:

handlebar directional switch on inoperative side not functioning.
broken or disconnected wire in the directional switch circuit
a possible combination of causes found in problem #1.
module malfunction.

You need to test the left turn signal switch to make sure it has voltage going to it and when you press the switch, 12 volts is going to the turn signal cancelling unit. This 12 volt pulse from the switch is what tells the module to turn the left turn signals on. Without the pulse, the module doesn't know you've pressed the switch. You may need a wiring diagram to trace this out. Sorry but I don't have one for that year model.

Good Luck
Steve


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How do I fix my left blinker? light still works but it sticks instead of blinks


What you speak of as to the left blinker doesn't flash, yet the instrument cluster shows the green arrow (to the left), and yet that and the left turn signal lights do not flash, appears to be a simple burned out bulb. If one of your left turn signal bulbs are burnt out, then the #552 Flasher Unit in your fuse box is NOT the cause. It's the "Amperage" not being correct to the flasher unit. Place the parking brake on and start your vehicle. Put the left turn signal on and check to see ALL the bulbs are illuminated for the left turn signal. If you find one bulb that is not illuminated, then replace the bulb. It should be an 1157 bulb, but in the front it could be a 1157 Amber bulb dependent on whether your turn signal lens is clear or yellow.

If you still have difficulty finding the dead bulb, turn on the right turn signal and see which bulbs are illuminated and this will give you an idea as to which bulb on the left side isn't working, or turn on your Emergency Flashers which will turn on both the left and right side lamps and see which bulb is not lit up.

I hope this Helps,

~00 Buck~

"Still living on the Right Side of Dirt..."

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1 Answer

Rear turn signal and hazard light don't flash (left side only)


The rear left turn signal bulb must be replaced immediatly before it melts the light socket, if it has'nt yet. Also please verify that the correct light bulb is being installed. because even though many bulbs look the same they are not identical. Installing the wrong bulb can be the begining of many, many problems in the particular circuit

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1 Answer

The right rear turn signal blinks quickly in a


I believe this car has a rear bulb that has two fillaments, one for side lights the other shared for braking and flash. sounds like a blown bulb or a bad ground connection. Check the bulb and the bulb holder and ground connection.
Turn signal blinking quickly generally indicates a blown bulb front or rear or bad connection.

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1 Answer

I turn on headlights and the left turn signal remains on "not blinking" I signal a left turn without the headlights and pannel lights illuminate with the turn signal


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1 Answer

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1 Answer

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Let me know.
Regards,

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1 Answer

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