Appraise turns a Bluetooth OBD-II reader and your phone into a dealer scanner: stored, pending and permanent codes in plain English, readiness monitors, and red flags when codes were cleared shortly before the appraisal. It runs on iPhone, Android and in Chrome or Edge on a laptop, prices repairs from book hours at your labour rate, and the first 25 dealerships, anywhere in Canada, get a free Bluetooth OBD reader with their 14-day trial.
Clearing codes turns the light off, but it resets counters a scan can read. Appraise reads them all and puts the verdict at the top.
Background: how to tell if codes were recently cleared.
Generic OBD-II, read the way an appraiser needs it. Only the readings the vehicle supports are requested, so scans stay quick.
| Reading | What it tells you |
|---|---|
Monitor status 01 01 | Check-engine light, number of codes, and which self-tests are complete |
Stored codes 03 | Confirmed faults, in plain English |
Pending codes 07 | Faults detected but not yet confirmed |
Permanent codes 0A | Faults a scan tool can’t erase; with zero stored codes, a recent clear |
Freeze frame 02 | Engine conditions when a code set |
Since codes cleared 31 30 4E | Km, warm-ups and minutes since the last clear |
With the light on 21 4D | How far and how long a fault was ignored |
Engine computer VIN 09 02 | A mismatch with the car suggests a swapped computer |
Odometer A6 | On newer vehicles, to compare with the dash |
| Battery voltage | Flagged under 12.2 V engine off or 13.2 V running |
| Live snapshot | RPM, coolant temperature, fuel trims and more |
Every code comes with a likely repair and a cost range, in your dollars.
Generic OBD-II reads engine and emissions systems, not airbag, ABS or body modules.
One account on every device. Value and Inspect work without a reader; Scan needs one.
Use a BLE OBD-II reader. iPhones can’t connect to classic-Bluetooth readers, so check the box says BLE or Low Energy.
What to look for in a readerScan from the phone in your pocket. The app remembers your reader and registers it to your dealership.
The web app scans over Web Bluetooth in Chrome or Edge. Safari doesn’t support it.
Free Bluetooth OBD reader with your 14-day trial for the first 25 dealerships, anywhere in Canada. One BLE reader per dealership.
Claim yours: book a demoScan every car on the lot. Scanning isn’t limited on any plan.
Appraise only reads. The one exception is a clear you deliberately confirm after a repair.
Knowing the limits keeps the scan in its place: a fast, reliable first look, not the whole story.
No. Value works with a VIN and km, and Inspect works with photos. A reader adds the engine scan and the cleared-code flags.
Only if you ask it to and confirm. Every other request it sends is read-only, so a scan never erases the evidence you are looking for.
Any 1996 or newer vehicle with an OBD-II port. Light- and medium-duty diesels report their own monitors, such as the particulate filter and NOx systems.
A code reader shows codes. Appraise reads the readiness monitors, since-clear counters, permanent codes and engine computer VIN together and tells you what they mean, then prices the repairs.
Yes, in Chrome or Edge, which support Web Bluetooth. Safari doesn’t.
Readiness monitors, distance and warm-ups since codes cleared, and permanent codes: what a quick reset leaves behind.
Read the guide OBD-IIBluetooth Low Energy for iPhone, permanent codes, readiness and since-clear data, speed, and what generic OBD-II can’t do.
Read the guide Appraisal processThe full process in order, from VIN and lien checks to the walk-around, scan, test drive, recon list, comps and max buy.
Read the guideTry it free for 14 days, no card needed. Or book a demo and we will run a real VIN with you.
