What is 35100aaeh00s?
At its core, 35100aaeh00s is an OEM (Original Equipment Manufacturer) ignition switch assembly used in vehicles like the Honda CRV. That switch lives on the steering column and plays a central role every time you turn your key — or push a button — to start the car. It’s not just about going from off to on. It connects various electrical systems, ensures your fuel system is ready, and controls starter engagement.
In short: no working ignition switch, no start.
Why This Part Number Matters
There’s a deluge of auto parts floating online, and mixed in are tons of knockoffs. Using the wrong ignition switch — even one that looks exactly the same — can result in alignment issues, poor starter engagement, or worse, electrical shorts.
That’s why part numbers like 35100aaeh00s are so critical. They validate compatibility between the system’s electrical pathways and the car’s onboard computer (ECU). Vehicles are increasingly computerized. Tiny mismatches result in big problems. This part number weeds out guesswork.
Common Symptoms of a Failing Ignition Switch
Don’t replace this part unless you’ve seen some clearcut signs. Here’s what might point to an ignition switch issue:
Intermittent starting troubles Accessories (radio, lights) not turning on when the ignition’s engaged The key won’t turn or feels loose in the cylinder Sudden stalling while driving
It’s often confused with battery or starter problems. That’s why proper diagnostics matter before you reach for that new 35100aaeh00s.
Replacement: DIY vs Professional
Swapping out an ignition switch isn’t the world’s hardest repair, but there’s nuance. Most people will bump into the following:
Disabling airbags Removing the steering cover panels Working with tight tolerances (no room for error)
If you’re remotely handy, a DIY job can run an hour or two — assuming correct tools and topshelf instructions. Just remember: disconnect that battery before touching anything.
Otherwise, a dealership or local shop can handle it. Cost may swing depending on labor rates, but most of it’s time, not parts. A typical 35100aaeh00s retails for around $100–$150, and labor adds another $100–$200 depending on location.
How to Verify a Genuine Part
Amazon. eBay. Online discount parts stores. Tempting? Absolutely. But watch out for fakes. Ignition switches are a favorite among counterfeit suppliers because they’re small, highvalue, and easy to mold. Don’t get hustled.
Here’s a fast way to know your 35100aaeh00s part is authentic:
- Buy from trusted sources — Think OEM suppliers or authorized dealers.
- Look for standardized packaging — Real Honda parts come branded and boxed (not bagged or loose).
- Inspect QA stickers — Serial numbers and manufacturer stamps matter.
- Avoid the “too cheap to be real” trap — Price undercuts more than 30% are red flags.
Maintenance Tips to Extend Lifespan
Once you’ve swapped in a new switch, don’t overlook it and move on forever. Keep it clean and ensure no foreign debris jams the switch area. Don’t hang a threepound keychain from your car key either — weight puts unnecessary pressure on the internal contacts over time.
A little preventative care keeps your 35100aaeh00s running longer. Think of it like taking care of your knees; once they start failing, everything gets harder — and more expensive — to fix.
When It’s Time to Move On
If this is your third ignition switch in as many years, something deeper’s amiss — maybe a deeper electrical fault or corrosion issue. In those cases, replacing 35100aaeh00s is putting a BandAid on an electrical hemorrhage.
A pro can isolate the deeper source using a diagnostic tool (called an OBDII scanner), which scans like a bodytemperature gun for vehicles. It knows what’s really breaking — even when symptoms are vague.
Final Thoughts on 35100aaeh00s
That part number might look random, but for anyone repairing or restoring a Honda vehicle, it’s gold. 35100aaeh00s ensures clean ignition circuit paths, reliable starting, and optimized ECU communication. Skip it — or worse, fake it — and you’re playing a risky game with your ride’s reliability.
When in doubt, refer to the service manual, doublecheck compatibility via VIN lookup tools, and always lean toward quality over cheap experiments. There are places to save pennies. Your ignition system isn’t one of them.
