Why are my rear turn signal lights not working?
Problem SHOULD be a short in the wiring harness between the firewall connector and rear lights, but it is NOT! Unplugged the connector at the rear of truck and used a test light. This cut out of the circuit ALL rear lights and tralier light connector.
Why are rear lights not working but brake lights are?
If the rear light lights up correctly but does not become bright when the brake is applied then the switch of the brake is faulty. This circuit is connected with the brake pedal – if the switch is out of place or connected incorrectly then the pedal may not be able to complete the circuit correctly.
Why are the headlights on my car not working?
Damaged wires in the circuit. Low charging system output. Make sure the headlight lenses are not foggy. Light bulbs, also, may also be worn through years of service. You may notice that your headlights dim in a particular engine operating condition. Verify that battery terminals are clean and tight.
Why are the head and tail lights not working?
The on-board computer turns on the tail and headlights according to the light outside the car. If it is dawn or dusk the head and tail lights will come on by themselves. The light sensors also switch off the daytime lights in some latest models. When the sensor is dirty or damaged it cannot tell if it is dark or day outside.
Why is my turn signal not working when the headlights are on?
When the headlights are on-look at the turn signal in the dark. If there is a faint glow, you have a powered ground. Electricity—takes the path of least resistance. The turn signals on most older GM cars do not have a ground wire.
Why is my Left Front light not working?
Since you brought up the emergency flashers it would be interesting to know if the left front light works ok with that switch on. If it does then the turn signal problem is most likely with that switch and not a ground problem for that light. Try cycling the switch a number of times to see if that helps clear the trouble.
Why do both rear turn signal lights flash?
Truck is my personal ”winter beater” and tow vehicle for my drag car. When the R or L turn signals are activated, BOTH the rear lights flash. Front is fine. Headlighs on or off makes no difference. Using an unpowered 12V test light with the firewall harness plug disconnected I checked power feed from the column switch.
The on-board computer turns on the tail and headlights according to the light outside the car. If it is dawn or dusk the head and tail lights will come on by themselves. The light sensors also switch off the daytime lights in some latest models. When the sensor is dirty or damaged it cannot tell if it is dark or day outside.
Problem SHOULD be a short in the wiring harness between the firewall connector and rear lights, but it is NOT! Unplugged the connector at the rear of truck and used a test light. This cut out of the circuit ALL rear lights and tralier light connector.
What to do when both rear turn signal lights flash?
Unplugged the connector at the rear of truck and used a test light. This cut out of the circuit ALL rear lights and tralier light connector. Power was fed to both sides, the Yellow and Dk Green wires. i.e. both sides flash at the same time. Used a DVOM set on ”continuity” to check wiring harness between firewall and rear connector.
Why are the rear lights on my 91 k1500 not working?
I had the same problem on my 91 K1500. The most common reason rear lights of any kind will fail is rotted wires. They run through wire shroud from front to back along the inside of the frame to the left tail light. Running this way leaves them exposed to the elements.
When do the brake lights turn on in a car?
The brake lights turn on when you apply pressure on the brakes. In most automobiles, the taillights are red while the brake lights are a brighter, more luminous red. The rear lights are controlled by the same switch as the headlights. The power flows through a relay to the rear lights when the switch is turned on.