After researching manufacturer specifications, industry standards, and aggregated owner feedback, we evaluated the top OBD2 scanners that offer crankshaft position variation relearn. This function is essential for GM, Ford, and some Chrysler vehicles after replacing the crankshaft sensor or performing certain engine repairs. Our guide compares seven real products available on Amazon, highlighting their strengths and limitations.
| Photo | Product | Score | Buy |
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Autel MaxiCOM MK808BT Best All-in-One Supports crankshaft relearn for GM, Ford, Chrysler; bi-directional control; Android 6.0 |
9.0 | 🛒 Check Price |
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Launch X431 V+ 4.0 Top-Tier for Pros Crankshaft relearn for most makes; J2534 pass-thru; 2-year free updates |
8.7 | 🛒 Check Price |
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BlueDriver Pro OBD2 Scanner Best for iOS/Android Crankshaft relearn via app update; Bluetooth 4.0; works with iOS/Android |
8.4 | 🛒 Check Price |
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Innova 5610 Great for GM & Ford Crankshaft relearn for GM and Ford; ABS/SRS diagnostics; 3.5-inch color screen |
8.1 | 🛒 Check Price |
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Autel MaxiAP AP200 Budget Bluetooth Option Crankshaft relearn for GM, Ford, Chrysler via app; Bluetooth 5.0 |
7.8 | 🛒 Check Price |
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Foxwell NT510 Elite Multi-Brand Specialist Crankshaft relearn for GM, Ford, Chrysler; 2-year free updates |
7.3 | 🛒 Check Price |
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ANCEL FX2000 Budget Pick for GM Crankshaft relearn for GM only; 2.4-inch screen; OBD2 generic functions |
7.0 | 🛒 Check Price |
1. Autel MaxiCOM MK808BT: Best All-in-One
The Autel MaxiCOM MK808BT is a professional-grade scanner that covers crankshaft relearn for GM, Ford, and Chrysler models. In our evaluation, based on owner feedback and the spec sheets, it performs reliably with bi-directional control and full system diagnostics. The 7-inch touchscreen is crisp and responsive, making navigation easy even for beginners.
However, this scanner is overkill for users who only need basic code reading and crankshaft relearn. Its price point is high, and some advanced features like coding require additional software purchases. Those on a tight budget or who only work on older vehicles should consider a more affordable option.
- Crankshaft position variation relearn for domestic vehicles
- Full system diagnostics including ABS, SRS, transmission
- 7-inch touchscreen with intuitive interface
Pros: Comprehensive coverage for multiple vehicle systems; Fast boot and responsive touchscreen
Cons: No subscription needed but some advanced functions require payment
2. Launch X431 V+ 4.0: Top-Tier for Pros
The Launch X431 V+ 4.0 is a powerful diagnostic tool that supports crankshaft relearn on GM, Ford, Chrysler, and many Asian vehicles. Based on owner feedback and manufacturer specs, it offers exceptional depth for professional mechanics, including J2534 pass-thru for ECU programming. The 2-year free updates add value.
However, the interface is complex and may overwhelm DIYers. The price is high, and some users report occasional connectivity issues with the tablet. It is best suited for full-time technicians who need advanced features and can justify the investment.
- Covers GM, Ford, Chrysler, and select Asian models
- J2534 pass-thru for ECU programming
- Free updates for 2 years
Pros: Wide vehicle coverage including Asian makes; Regular software updates
Cons: Steep learning curve for non-professionals
3. BlueDriver Pro OBD2 Scanner: Best for iOS/Android
The BlueDriver Pro is a Bluetooth OBD2 scanner that adds crankshaft relearn capability through its app. Based on aggregated owner feedback, it works well for GM and Ford vehicles. The app provides clear live data and repair reports, making it a great choice for DIYers who already use their smartphone.
However, the crankshaft relearn feature is an extra in-app purchase, and coverage is limited to GM and Ford. It does not support Chrysler or other makes. Users who need relearn on multiple brands or prefer a standalone tool should look elsewhere.
- Crankshaft position variation relearn for GM and Ford
- Free app with repair reports and live data
- No subscription required for basic functions
Pros: Very easy to use with smartphone app; Affordable compared to dedicated scan tools
Cons: Relearn function requires in-app purchase
4. Innova 5610: Great for GM & Ford
The Innova 5610 is a mid-range scanner that offers crankshaft relearn specifically for GM and Ford vehicles. In our evaluation based on owner feedback and spec sheets, it performs reliably with a straightforward interface. The large buttons and color screen make it easy to navigate even with gloves.
However, it lacks Chrysler and Asian vehicle coverage, limiting its use. The screen is small compared to tablet-based scanners, and it does not offer bi-directional controls beyond the relearn function. It is best for DIYers who primarily work on GM and Ford cars.
- Crankshaft position variation relearn for GM and Ford
- ABS and SRS system diagnostics
- Large button keypad for easy use
Pros: Dedicated relearn function without subscription; Good for quick diagnostics
Cons: No support for Chrysler or Asian vehicles
5. Autel MaxiAP AP200: Budget Bluetooth Option
The Autel MaxiAP AP200 is a compact Bluetooth scanner that provides crankshaft relearn for GM, Ford, and Chrysler through its app. Based on aggregated owner feedback, it offers good value for the price. The app is intuitive and covers full system diagnostics.
However, the crankshaft relearn feature requires an additional in-app purchase, and the tool relies on a smartphone for operation. Some users report connectivity drops with older phones. It is not ideal for professional use due to its plastic build and limited durability.
- Crankshaft position variation relearn for domestic makes
- Full system diagnostics with free app
- Compact and portable design
Pros: Very affordable entry point; Supports multiple systems
Cons: Relearn function is an in-app purchase
6. Foxwell NT510 Elite: Multi-Brand Specialist
The Foxwell NT510 Elite supports crankshaft relearn for GM, Ford, and Chrysler, as well as full system diagnostics. Based on owner feedback, it gets the job done but feels dated. The screen is small and the menu navigation is sluggish compared to newer models.
Its build quality is adequate but not premium. The value is diminished by the availability of more modern alternatives at similar prices. Users who prioritize speed and modern UI should skip this model.
- Covers GM, Ford, Chrysler crankshaft relearn
- Full system diagnostics for engine, transmission, ABS
- 2-year free software updates
Pros: Good coverage for domestic brands; Regular updates
Cons: Outdated interface and slow processor
7. ANCEL FX2000: Budget Pick for GM
The ANCEL FX2000 is a budget-friendly scanner that offers crankshaft relearn exclusively for GM vehicles. In our research, based on owner feedback, it performs the relearn function adequately but lacks any advanced diagnostic capabilities. The small screen and basic interface are functional but not user-friendly.
It is not suitable for Ford or Chrysler owners, and the build quality feels cheap. Users who need more than just GM relearn or who want live data should invest in a more capable tool. It is only recommended for those on a very tight budget with a single GM vehicle.
- Crankshaft position variation relearn for GM vehicles
- Reads and clears generic OBD2 codes
- Compact and lightweight
Pros: Lowest cost option for GM relearn; Simple operation
Cons: Only works with GM vehicles; Limited to crankshaft relearn and basic codes
Frequently Asked Questions
What is a crankshaft position relearn and why is it needed?
A crankshaft position variation relearn (also called crank relearn) is a procedure that recalibrates the engine control module (ECM) to the exact position of the crankshaft sensor after replacement or certain repairs. It ensures accurate timing and prevents misfires, stalling, or check engine lights.
Which vehicles require a crankshaft relearn?
Most GM, Ford, and some Chrysler vehicles require a crankshaft relearn after replacing the crankshaft position sensor, camshaft sensor, or after ECM replacement. Some Asian makes also require it, but coverage varies by scanner.
Can a basic OBD2 scanner perform a crankshaft relearn?
No, basic code readers only read and clear generic OBD2 codes. A crankshaft relearn requires a bidirectional scan tool that can communicate with the ECM and initiate the procedure. The scanners in this guide all support this function.
Do I need a subscription for crankshaft relearn on these scanners?
Some scanners like the BlueDriver and Autel AP200 require an in-app purchase for the crankshaft relearn feature. Others like the Autel MK808BT and Innova 5610 include it without extra fees. Check the product details before buying.
Can these scanners update software for new vehicles?
Many of these scanners offer free updates for a limited time (e.g., 1-2 years). After that, a subscription may be required. The Launch X431 V+ 4.0 and Foxwell NT510 Elite include 2 years of free updates, while others like the BlueDriver update via app.
Our Verdict
After researching and comparing these seven OBD2 scanners with crankshaft relearn, the Autel MaxiCOM MK808BT stands out as the top pick for its comprehensive coverage, ease of use, and reliable performance. For a more budget-friendly option, the BlueDriver Pro offers excellent value for DIYers with GM or Ford vehicles, though the relearn function requires an in-app purchase.
