Ancel Code Reader How to Use: The FAQ I Wish Every Customer Read (Ancel VD700 OBD2 Included)

If you are about to buy an OBD2 scanner, or you already own one and have a drawer full of 'why won't this clear that' moments, this list is for you. I keep a mistakes checklist in my toolbox. I have been running a small garage and handling customer service orders for eight years. In my first year (2017), I bought a code reader on price alone. It read engine codes, but it could not see ABS, airbags, or the body control module. That mistake turned a 20-minute job into a three-hour headache. Since then I have documented 14 significant mistakes that added up to roughly $7,200 in wasted budget.

My point? The right tool matters, and so does knowing where to stop. A code reader will not fix a scratch, and an office chair cover will not fit a car seat. The good news is you don't have to learn all of this the expensive way.

Small doesn't mean unimportant—it means potential.

That includes small orders. The supplier who treated my $250 first order with respect is the same one I later used for an order that was 20 times bigger.

Ancel VD700 OBD2: is it worth it for a small shop or a home mechanic?

I went back and forth between the Ancel VD700 OBD2 and two more expensive scanners for two weeks. The bigger names felt safer; the VD700 had wider coverage for the price I could justify. I chose it because I see engine, transmission, ABS, and airbag codes almost weekly. Three things made the difference: system coverage, menu design, and support.

Will it scan every car on Earth? No. Anyone who promises that is lying—and per FTC advertising guidelines, claims like that need evidence. What I can say is that the VD700 covers the normal systems on most OBD2-compliant vehicles I work on, and it reads many manufacturer-specific codes without extra modules. (The key word is most. I still check the product page before recommending it.)

If you only scan cars once a month, a cheaper code reader may be enough. If you run a shop, or you're fixing your own cars on the weekends and want one tool that doesn't make you start over, the VD700 is the one I point people to.

Ancel code reader how to use: what's the correct first step?

Pop quiz: before you plug in the scanner, what do you check? I learned this the hard way in 2022. I plugged a scanner into a customer's truck, read the codes, cleared them, and sent the truck home. The check-engine light came back the next day. Why? Because I did not check the fuel cap or battery voltage first. Simple things cause weird codes.

The order that works for me:

1. Check the OBD2 port for bent pins or debris. (I once found a bent pin from someone else's cheap cable.)
2. Turn the ignition on but do not start the engine unless the scanner instructions say otherwise.
3. Select the vehicle profile on the Ancel code reader, if it asks.
4. Read the codes before clearing anything. Write them down, even if they look unrelated. A code like electrical misfire can involve wiring, not just spark plugs.
5. Look at live data if your scanner has it. The Ancel VD700 does, and it is the fastest way to stop guessing.

Why does this matter? Because a code reader is a starting point, not a verdict. P0300 means 'random misfire,' not 'replace six spark plugs.' I still kick myself for replacing four coils on my own car before finding a cracked vacuum hose. The live data would have pointed me the right way. Now I use the scanner like a conversation instead of a magic 8-ball.

Seat covers chair cover—is there actually a difference?

Yes, and I learned it by ordering the wrong thing in September 2022. A customer asked me to source custom seat covers for a 2019 Honda. I searched 'seat covers chair cover' and found a listing that looked perfect. It said 'chair cover.' I assumed it was a typo. It was not. I ordered eight—$450 including shipping—and we got office chair covers with straps designed for an ergonomic chair, not car seats. Straight to the trash, credibility damaged.

Here is the practical difference:

• Car seat covers have anchor hooks, headrest holes, and access for side airbags.
• Office chair covers are usually one-piece and fasten under the seat.
• A chair cover has no cutout for a seatbelt buckle.

If you see 'chair cover' in a listing for a car accessory, stop. Check the dimensions and the mounting system. The supplier I use now once flagged an order for a minivan because the rear seat shape didn't match my selected vehicle. That saved me another $250 mistake. It's also why I don't treat small customers like a nuisance—I remember what it felt like to be on the other side.

Can an OBD2 scanner handle a Chevrolet Camaro V6 cat back exhaust system?

Short answer: yes, if the cat back system is only from the catalytic converters back. A cat back exhaust changes the mufflers and piping behind the rear cats, so it does not move the O2 sensors. The ECU still sees the same emissions data. I have scanned a 2016 Chevrolet Camaro V6 with a cat back exhaust, and the OBD2 monitors were fine.

Long answer: be careful with exhaust kits that replace the catalytic converters or front pipes. If an installer moves an O2 sensor or deletes a cat, the scanner will show a catalyst efficiency code such as P0420. That isn't the scanner failing—that's the configuration failing. And if you clear a code after a modification, the readiness monitors need a full drive cycle to reset. The Ancel VD700 reads readiness status, so you can confirm the car is ready for an emissions test before you hand the keys back.

Also, don't assume a code reader will tell you whether an exhaust sounds good. I made that mistake on my own car: ordered a cat back system that looked great under the car and droned at highway speed. The scanner couldn't fix my hearing. It also cost me more than the Ancel VD700 did.

What is the best car wax for scratches?

I hate to break it to everyone who asks this: there is no single best car wax for scratches. Wax can fill light swirl marks and make them less visible for a while. It will not fix a scratch you can feel with your fingernail. For that, you need an abrasive polish or compound, and then wax as the final protective layer.

The question isn't 'what wax removes scratches?' It's 'is this scratch deep enough for wax?' My checklist:

1. Wash and dry the panel. Any leftover dirt changes the answer.
2. Run a fingernail across the scratch.
3. If the nail catches, stop. Wax will not help. You need touch-up paint or a professional detailer.
4. If it doesn't catch, use a light polish first. Then apply wax.

Don't spend $80 on fancy wax hoping it fixes a keyed door. The wax is the last step, not the repair. That is like using a code reader to read a fault, then ignoring the fault because the reader reads it. You have to do the repair after the diagnosis.

Can the same scanner work on cars, trucks, and motorcycles?

This is the question I didn't think to ask at first. I assumed OBD2 was OBD2. Then I plugged my car scanner into a customer's motorcycle and got nothing. Some motorcycles are OBD2-compliant, but many use a different connector or protocol—not the standard SAE J1962 16-pin port. Ancel makes separate heavy-duty truck scanners and motorcycle diagnostic tools for that reason.

A final tip: if you are a small shop, a weekend mechanic, or someone ordering their first diagnostic tool, don't let anyone make you feel like a small order doesn't deserve a straight answer. The vendor who treated my $250 order like it mattered is now a supplier I've sent over $5,000 of business to. That's how this industry should work.

And if you're standing in your garage with a fault code, a Camaro exhaust drone, a seat cover the wrong shape, and a bottle of wax that didn't fix anything—take a breath. I've been there. The next step is usually a better diagnosis, not a bigger hammer.