Solution to Xhorse VVDI2 not connected by OBD2 error

Offer DIY solution to the error that Xhorse VVDI2  is not connected by OBD2.

Thanks to jodge (DK Veteran).

 

Error:

VVDI2 is no longer connected by OBD2, it has been short to negative.

This component was burned (make smoke), I took it and at least UDS protocol is working, I did not test in Kline

 

jodge’s solution:

 

Please replace A2SHB component.

 

Part Number : A2SHB

Function : N-Channel 1.25-W, 2.5-V MOSFET

Package : SOT23 Type

Manufacturers : Vishay, NXP

Image :

 

Description

N-channel enhancement mode field-effect transistor in a plastic package using TrenchMOS technology.

Pinout

 

Features

1. TrenchMOS™ technology
   2. Very fast switching
   3. Logic level compatible
   4. Subminiature surface mount package.

Application

1. Battery management
   2. High speed switch
   3. Low power DC to DC converter.