Flasher Relay (Turn Signal Relay)
The flasher relay makes the indicators flash on and off.
What is Flasher Relay (Turn Signal Relay)?
Older cars use a separate relay; modern ones use the body control module. Fast flashing indicates a failed bulb. LED retrofits can upset older relays. Load resistors or LED-compatible relays prevent hyper-flashing when fitting LED indicators on older cars.
How it works
The relay switches current to the lamps at a set rate.
Why it matters for your car
Hyper-flashing means a lamp or connection fault. Hazard lights use the same system.
Other terms
- A/C Recharge (Air Conditioning Service)
- Brake Cleaner
- Comprehensive Car Insurance
- Cylinder Head Bolt
- Diminished Value (Loss In Value After An Accident)
- Emissions Test
- Gear Lever (Gear Selector)
- Headrest (Head Restraint)
- Heated Windscreen
- Insulation Monitoring (Isolation Fault)
- Interior Fragrance System
- Kingpin
- Labour Time (Flat-rate Time)
- Oil Pressure Warning Light
- Repair Estimate (Quote)
- Rescue Sheet (EV Rescue Card)
- Short Circuit
- Tappet Noise (Lifter Tick)
- Vehicle Tax (Road Tax)
- Wheel Runout