Ford Expedition Hazard and Turn Signal Flasher Relay Guide (1997-2013)
If your turn signals or hazards are acting up, the flasher relay is a common and simple fix for most 1997-2013 Expeditions.
- First, confirm your Expedition is a 1997-2010 model; newer trucks (2011+) do not use a replaceable relay.
- Symptoms include dead, intermittent, or solid-on turn signals and hazard lights.
- Always check for burned-out bulbs before replacing the relay, as this can cause similar issues.
- Replacement is a simple DIY task, with the relay located under the driver's dash.
Is Your Expedition Flasher a Relay or a Computer?
Before buying a part, you need to know what your Expedition uses. This is the most common mistake owners make.
- 1997-2010 (Approx.) Ford Expedition: These models use a simple, replaceable 5-pin flasher relay. If you have one of these model years, a new relay is likely the solution to your problem. This guide is for you.
- 2011-2013 (Approx.) Ford Expedition: Ford integrated the flasher function into a computer called the Smart Junction Box (SJB) or Generic Electronic Module (GEM). There is no separate, replaceable flasher relay on these trucks. If you have a newer Expedition, your problem is more complex and may require a diagnostic scan or a new SJB, which is not a simple relay swap.
Check Your Year First
Confirm your Expedition's model year. If you have a 2011, 2012, or 2013 model, do not purchase a flasher relay, as your vehicle does not use one. The issue is likely with the multifunction switch or the SJB module itself.
Common Symptoms of a Bad Flasher Relay (1997-2010)
When the flasher relay starts to fail, you'll notice obvious problems with your lights. Common signs include:
- No Turn Signals or Hazards: The most common symptom is when neither the turn signals nor the hazard lights work at all.
- Intermittent Operation: The signals may work sometimes and not others. They might blink once or twice and then stop.
- Lights Stay On (No Flash): The turn signal or hazard light indicators on your dash will light up but won't flash.
- Brake Light Issues: On some models, a faulty flasher relay can even cause the brake lights to stop working.
Pro Tip: Always check your bulbs first. A burned-out bulb can sometimes cause the turn signals to flash rapidly (hyperflash) or not work correctly. This is a simpler fix and should be ruled out before replacing the relay.
🎬 See how to properly diagnose common turn signal problems first.Choosing the Right Aftermarket Flasher Relay
For Expedition owners with a replaceable relay, you have good options. The OEM Motorcraft part is high quality, but top-tier aftermarket brands offer similar performance for a comparable price. Given the simplicity of this part, a reliable aftermarket unit is a smart choice.
Brand Quality Tiers:
- Standard Motor Products (SMP): A trusted name in automotive electronics. Their parts are manufactured in certified facilities and are known to be a reliable OE-equivalent replacement. They are a solid choice for this repair.
- ACDelco: While typically associated with GM vehicles, ACDelco offers a "Professional" or "Gold" line of parts for many makes and models. They are a reputable aftermarket supplier, often re-branding high-quality components. You can trust them for this application.
Honestly, for a simple relay like this, both Standard Ignition and ACDelco are excellent choices that will restore proper function to your turn signals and hazards.
| Part Type | Estimated Cost |
|---|---|
| New Aftermarket (Recommended) | $31.94 - $36.12 |
| New OEM (Motorcraft) | $30.00 - $45.00 |
| Shop Labor | $50 - $100 |
Frequently Asked Questions
Where is the hazard flasher relay located on my Expedition?
On 1997-2010 models, the flasher relay is located under the driver's side dashboard, usually high up and to the right of the steering column. It is often housed in a small black box with the blower motor relay. You may need to remove the lower dash panel (knee bolster) to access it. It can be difficult to see and may need to be located by feel.
Can I replace the flasher relay myself?
Yes, this is a great DIY job for applicable model years. Once you locate the relay, it simply pulls out of its socket and the new one pushes in. No special tools are needed, though a socket wrench can help remove the dash panel. The entire job can take as little as 15-20 minutes.
🎬 Watch this quick walkthrough of a 1997 Expedition relay replacement.My turn signals blink fast. Is that the relay?
Usually, no. Fast blinking, or "hyperflash," is the vehicle's way of telling you that a turn signal bulb has burned out. The reduced electrical load makes the relay flash faster. Check and replace your front and rear turn signal bulbs before suspecting the relay.
I have a 2012 Expedition and can't find the relay. Why?
Your 2012 Expedition does not have a separate flasher relay. Ford integrated this function into the Smart Junction Box (SJB) starting around the 2011 model year. Your issue is not with a relay and will require different diagnostics.
🎬 Watch the complex process of replacing a Smart Junction Box.Helpful Videos
Technical Specifications
OEM Part Numbers: 5C3Z-13350-AA YL3Z-13350-AA F65Z-13350-AA 2L1Z-13350-AA 1L5Z-13350-AA F58Z-13350-A
5-pin electronic flasher relay.
We Have This Part in Stock
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.
- Ford Expedition: