Got the SERVICE HIGH VOLTAGE CHARGING SYSTEM (aka SHVCS) in 2014 GM Volt; need to update the HPMC2 & BECM software.
Both vxdiag vcx nano gm and Topdon Rlink J2534 will accomplish the task. But which is better in clearing the SHVCS error?
Here comes the user review:
Both devices are compatible with GDS2, Tech2win and DPS software. The TopDon Rlink J2534 is a lot more expensive and doesn’t come with any car-interface software (eg, GDS2) (which isn’t needed for the reprogramming but means you’d have to pay a lot more for the diagnostics software).
Topdon now cracked the GDS2, but it is older software version than VXDIAG. What’s more, the topdon cracked GDS2 requires remote activation, which means it has a bad crack.
The vcx nano comes with newer crakced software. The software has to run under Admin authority.
The Topdon RLink because it is generally considered a low cost but professional-grade tool for ECU programming and reprogramming across multiple vehicle brands. It is also considered superior in robustness and compatibility. The example of not needing SPS2 inorder to use GDS2 for calibrations.
Based on our research, if you only need a portable, versatile, and cost-effective tool mainly for diagnostics, the VXDIAG VCX Nano would be a better choice.
The VCX NANO WiFi version also connects via WiFi. Rlink J2534 only connects via USB.
VCX NANO has many positive reviews in clearing GM Volt SHVCS error.