Acura CL Hazard and Turn Signal Flasher Relay: A Complete Guide (1997-2003)
If your turn signals are acting up, the small flasher relay is often the cause.
- A bad flasher relay is a common cause for turn signal failure on the 1997-2003 Acura CL.
- The relay is located under the driver's side dash and is an easy DIY replacement.
- Before replacing the relay, ensure the hazard switch on the dash is plugged in, especially after radio work.
- Aftermarket relays are a cost-effective and reliable solution, as OEM parts may be discontinued.
Is Your Acura CL Flasher Relay Failing?
A faulty flasher relay on the 1997-2003 Acura CL can cause confusing and unsafe signal problems. The most common issue reported by owners is when the turn signals or hazards blink once or twice and then stop completely. In other cases, they may not work at all, or they might get stuck and stay on without flashing. It is important to check simple things first, like your fuses and bulbs, but if those are fine, the flasher relay is the next logical part to inspect.
Check the Hazard Switch First
On these Acura models, the turn signals are wired through the hazard warning button on your dash. If you have recently replaced the radio or worked on the center console, make sure the hazard switch is plugged in securely. If it's unplugged, your turn signals will not work even if the relay is good.
Symptoms of a Bad Flasher Relay
- Turn signals don't work: Neither left nor right turn signals will activate, but your hazard lights might still work.
- Intermittent flashing: The signals may flash a couple of times and then stop.
- Signals won't turn off: The relay can fail in the 'on' position, leaving a turn signal light constantly lit.
- No clicking sound: The familiar click-clack noise is absent when you use your turn signal.
Choosing the Right Aftermarket Flasher
For a vehicle of this age, finding a brand-new OEM flasher relay from Acura may be difficult as parts are often discontinued. Aftermarket parts are a reliable and cost-effective solution. Brands like Standard Ignition and True Tech offer direct-fit replacements. Standard Ignition is a known manufacturer with certified quality processes. Other brands like Novita are also considered quality producers of flasher relays. Since the flasher is a simple electronic component, a quality aftermarket part from a reputable brand is a perfectly acceptable repair solution.
A Note on LED Bulbs
If you have upgraded your turn signal bulbs to LEDs, you may experience "hyperflashing," where the signals blink very rapidly. This happens because LEDs use less power, and the standard relay thinks a bulb is burned out. To fix this, you need a special electronic flasher relay designed for LEDs. Standard thermal flashers will not work correctly.
Replacement Location and Difficulty
Replacing the flasher relay is a straightforward job that most owners can do themselves in under 30 minutes. The location varies slightly by generation:
- 2001-2003 Acura CL (2nd Gen): The flasher relay is located under the driver's side dashboard, above the kick panel. It is typically the bottom of three relays grouped together. You can often find it by turning on the hazard lights and listening for the clicking sound.
- 1997-1999 Acura CL (1st Gen): Some sources indicate the flasher is integrated into the driver's side under-dash fuse box, labeled as the 'turn signal/hazard circuit'.
The replacement involves simply unplugging the old relay and plugging in the new one. No special tools are required, though a pair of pliers can help grip the old relay if it's in a tight spot.
| Item | Estimated Cost |
|---|---|
| New Aftermarket Flasher Relay | $27 - $34 |
| Shop Labor | $60 - $120 |
| DIY Savings | Approximately $60 - $120 |
Frequently Asked Questions
Why do my hazard lights work but my turn signals don't?
This can happen on some vehicles. While the flasher relay is often shared, the problem could be in the turn signal switch (the stalk on your steering column) or the wiring between the switch and the relay. However, given the low cost, replacing the relay is a good first diagnostic step.
Is there a recall on the Acura CL flasher relay?
No, there are no specific recalls or technical service bulletins (TSBs) from the NHTSA for the hazard warning flasher relay on the 1997-2003 Acura CL. The major recalls for this vehicle concern Takata airbag inflators.
Can I drive my Acura CL with a bad flasher relay?
It is not recommended. Driving without functioning turn signals is a safety hazard and can get you a traffic ticket. You will not be able to signal your intentions to other drivers, which significantly increases the risk of a crash.
What is the difference between a thermal and an electronic flasher?
Older thermal flashers use a bimetallic strip that heats up and bends to make and break the circuit, creating the flash. Electronic flashers use solid-state components. If you are using LED bulbs, you must use an electronic flasher to avoid hyperflashing.
Technical Specifications
Varies by brand, but typically a 3-pin electronic flasher relay. Ensure compatibility with your specific year (1997-1999 or 2001-2003) before purchasing.
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The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
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