Description
Review this item in the context of the repair, installation access, nearby parts, and the result the completed job is intended to achieve.
The ATE Test Card for magnetic sensor gears protects against installation errors and enables fast, easy diagnostics of wheel bearing sensor issues.
No structured vehicle fitment data is available. Compare the listing with the vehicle and existing part before ordering.
Repair scenarios, installation, companion parts, and use outcomes
Buying guidance
Quick decision
Review this wheel bearing tools in the context of the repair and the surrounding components.
Repair scenario
- Identify the symptom and confirm that this is the component required by the repair.
- Inspect nearby connectors, fasteners, and mating surfaces before installation.
Installation notes
- Use the listing instructions when present and follow the vehicle service procedure.
- Professional installation may be appropriate when the repair requires special tools or calibration.
Companion parts
- Inspect nearby fasteners, connectors, seals, fluids, and wear items before starting the repair.
- Use the service procedure and the visible package contents to identify any additional parts or tools required.
Before you buy
- Compare the listing title, photos, package contents, and specifications with the part being replaced.
- Confirm vehicle compatibility and installation requirements before ordering.
Customer feedback
Ratings and written reviews
4.2 / 5
221 source ratings
Source: Amazon. Imported marketplace feedback is shown for product research and is not a review of a purchase made on this website.
W. Self –
This tool is used to inspect the “magnet lines” on the ABS encoder ring part of bearing that are connected to ABS (anti-lock brake) systems. Those magnetic lines generate the AC millivolt pulse signal via a stationary sensor for each wheel that is sent to the ABS computer. The encoder ring looks like a flat plastic surface on one side of the bearing and has embedded magnetic line that are invisible without a tool like this. Installing a bearing with missing lines or too many lines or less lines as compare to your removed OEM bearing (when ABS was working properly) can cause ABS brake malfunction with warning light issues. I had to diagnose such a headache problem after installing a pair of rear Reybestos bearings on my 2008 Honda Accord. I surprising found “too many” magnetic lines on a third Reybestos bearing I ordered have on hand for repair/ then found defect on the 3rd bear/ returned to Rockauto with picture documentation. That defect caused ABS fault codes that translates into “wrong size tire” when all foour tires were same and stock size. A deeper ScanTool read produced 12 OEM ABS -VSA fault codes. I ordered a new set of Timken bearings. My inspection with this card tool plus magnifying digital pictures showed me magnetic line count on the Timken bearing matched up to my old OEM bearing (OEM means original equipment manufacturer). Giant help in figuring out my ABS malfunction problem. Installation of Timkens bearings provided full resolution of my ABS issues on my 2008 Honda Accord. … Read some Honda Dealers even do an inspection of ABS encoder rings on the OEM bearings leaving their parts department because of the diagnostic headache produced when an oddball defect slips by. I would recommend using this encoder ring reader tool before swapping out any ABS related bearing. Thanks to the suppliers here for making this available!
EMANUELE –
Non è adatto per la verifica della magnetizzazione delle schede telefoniche, non è in grado di rilevare tracce magnetiche
joe graham –
Great product
david –
Makes it easy to compare bearings to original or to compare replacemnts.Also can visualize damaged sensor rings or locate the correct side of bearing to correctly orient for installation.Bit pricey but pretty much a good must have tool.
Sherri Ezell –
Do not buy this item it is a one-time use only for $18 and it doesn’t do an effective job and leaves burn lines as soon as you use it right into the lens absolute junk.
Joubert –
I got this after seeing this (or a similar item) being used to check the ABS magnetic rings on press-in wheel bearings. It will show either the fine toothed ring or the larger chunkier teeth of the cheaper bearings.It was able to show me that my National bearings for a Jaguar X-type were large segments vs. the Timken bearings with the finer teeth.My current ABS issues with the Jag (wheel speed mismatch only) are likely related to the cheap bearings used that probably have the incorrect ABS ring teeth in them. The only way to know is the pull them and see.I recommend getting this little thing IF you do a lot of bearing replacements like this (not for wheel hub bearings, but stand-alone bearings that are pressed into a steering knuckle). Or if you have some other reason to view magnetic fields. 🙂
f8ldzz –
Just about the only option out there for this type of “tool.”Yes, you can get generic sheets of LCD that react to magnetic fields, but check the reviews on those things, as they don’t always work.ATE has done a great job and quality control to get this tool to work consistently.Yes, it’s pricey for what you get, but this tool works 100% of the time without fail; just keep it in a safe place away from getting smashed or bang up.
Chris –
Kinda pain to use.. doesnt really tell you too much.. wouldnt buy another if i lost it..
Matt –
Used on Mercedes Benz wheel bearings
jose –
Excelente, uso diario en Toyota dealership, no problemas
Andreas Schmerder –
immer wieder gern
M.R –
Ich habe das Produkt ein einziges Mal verwendet, um eben das ABS Lager zu checken.Wenn man es nicht genau auflegen kann reicht u.U der Magnetismus des Lagers nicht aus um die (Spahnschicht)/(Eisenstaub) in der Karte auszurichten und so sicherzustellen das, dass Lager iO ist.Prinzipiell funktioniert das Werkzeug aber.Es dauert jedoch bis es wiederzuverwenden ist.In einer Mischung mit einem elektrischen Magnetfinder jedoch ergänzend gut!
TERRY BREWER –
GOOD PRODUCT