Troubleshooting / No Turn Signal

• Turn Signal Questions and Answers
• Why is one headlight dim?
• How Do Turn Signals Work
• How to reprogram a key fob remote control
• One or all brake lights not working
• No Taillights or taillight light bulb out

No Turn Signal Operation (blinker)

The turn signal lights in your car are a basic electrical system that controls the front and rear blinker lights to alert the intended direction of the vehicle. We have listed some of the most common problems and repair troubleshooting tips below:

Troubleshooting Procedure

To start troubleshooting this problem:

• Turn the key to the on position (do not start engine)
   
• Inspect the system fuse located in the fuse panel and replace if needed. If you cannot find the location of the blinker fuse consult your owner's manual or an online repair manual
   
• When a blinker flasher fails it can cause blinker lights to say on, not blink, or not go on at all. To test the blinker system flasher, remove the flasher unit and insert a jumper wire between the two terminals. If blinker stays on in both directions without blinking, replace the flasher. If you cannot find the location of the blinker flasher consult your owners manual or an online repair manual.

Jumper Wire

• If both test results are positive the turn signal switch has probably failed and replacement is required. There is a possibility that the system has a bad ground but this condition is very rare.

Turn Signal Switch

A flasher unit is incorporated into the system and is used to break and reconnect the circuit; this device is what creates the blinking operation.  If the blinker system flashes quickly on one side or the other, a bulb has failed somewhere in the system. Inspect all bulbs and replace as needed, then recheck the system. If you have replaced the bulb but it still blinks fast and the bulb does not illuminate properly the ground circuit inside the bulb socket has failed and replacement is required.

Signal Flasher

For exact specific repair procedures for any of the steps above visit our online repair manual page.

Troubleshooting / No Turn Signal

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