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How to Use XTOOL PS201 Heavy Duty OBD2 Code Reader?

XTOOL PS201 is a portable code reader for heavy duty OBD2 which is compact in structure, pleasing in appearance and reasonable in price. With XTOOL PS201, it’s very convenient for users to read DTCS from ECU promptly and find out fault point and reason through looking up the code list. This product is suitable for garage work as well as personal users to know the running state of ECU at any time.

What XTOOL PS201 is mainly used to do?
Read and clear diagnostic trouble codes.

3 steps to use XTOOL PS201 read clear trouble codes (DTCs)?
Check following steps:
1.When the Check Engine Light turn on, you should pull over and pull handbrake first, and start engine, then insert this code reader into OBD 16 pin port (generally the standard OBD port locates in the bottom of one side of the dashboard).
2.The screen will show car brand first, following the tip choose car type or protocol to go to next step. If there are DTCS in ECU, they will be showed one by one, if not, there will be [-- -- -- -- ] on sreen. This process will be repeated.
3.If there are DTCS in ECU, they will be showed one by one, after that you can press the DTCS clearing button to clear those codes. If not, those codes will be kept at ECU storage.

Note: The Xtool PS201 work in 11V~28V voltage, please make sure the diagnostic socket on your vehicle export 11V~28V voltage.

For more details on Xtool PS201 vehicle coverage, compatible coverage and how to one-by-one read clear trouble codes. You may agree user manual is informed:

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Original Wellon VP598 universal programmer run faster than VP390, how much?

As we know the original Wellon programmers are reliable and fast universal device programmers, more importantly it is affordable compare with most original products. Now original Wellon VP598 is available at

Wellon VP598 runs faster and more stable than VP390. Following table visually tell you how much time Wellon VP598 run faster than VP390.

TYPE Wellon VP598 Wellon VP390
Prog./Ver. Speed (P89V51RD2) 5.1S 5.7S
Prog./Ver.Speed (29F040) 7.5S 11.7S
Prog.+Ver.Speed (W25Q32B) 21S 51S

Besides, Wellon VP598 programmer is original WELLON product with on-line update at, one-year warranty as well as 15 day moneyback guaranty

Package includes Wellon Programmer VP-598, USB cable, VP-598 Manual and power adapter

Wellon VP598 programmer and Wellon Vp390 share the same features at following aspects:
Support devices: 21000+
Pin Drivers: 48 Pins Popular Driver
USB Port: USB2.0
LCD Screen: No
ISP Prog: No
Low voltage device support: 1.8V
SRAM Test: Yes
OS: Windows XP/Windows 7/8/10(32bit and 64bit)
I/O Driver: 256 Levels
TTL Test: Yes
Other Features: Auto_Sense and run batch command. Auto serial Number

Wellon VP598 programmer detailed features and function:
- Dimension:168×98×23mm,weight:265g.
- Electrical spec. of the AC adapter: AC input 100V to 240V, 50/60Hz, DC output 9V/0.6A
- 48 Pin ZIF socket with Popular pin-drivers.
- Interface with LAPTOP, PC or compatibles through USB port
- Accepts standard file formats: JEDEC, INTEL (Extended) HEX, HOLTEK, EMC(.CDS), INTEL HEX16, Motorola S record
- Manages 16 and 32-bit word split (Set Programming)
- Features Test Vector capability and multiarray fuse map editor
- Test TTL/CMOS logic ICs and Dynamic/Static Random Access Memory devices
- Optimum programming for each individual device
- Automaticly Identifies the manufacturer and type of E(E)PROMs, Auto identifies TTL/CMOS logic IC
- Device insertion and poor-pin-contact check
- Support 1.5v Low voltage devices
- Not need exterior adapter for mostly devices.
- Universal DIP, PLCC, QFP, TSOP, PSOP, SOIC, SSOP, SDIP adapters
- Auto-run mode starts programming automatically upon detection of chip insertion
- Supports WindowsXP/Vista/ Windows 7 (32bit and 64bit)/ Windows 8 (32bit and 64bit)
-Support Chinese(Simplified), Chinese(Traditional), English, Korean, Poland, Italian, Portuguese,Dutch, Turkish and Hungary, totally 10 languages.

Device Support:
Microcontroller: Atmel, Intel, Microchip, Signetics, Zilog, etc.

IC Test:
TTL (74 series), CMOS (40/45 series) Logic IC
DRAM SRAM memory device

How to use Wellon VP598 programmer to program?








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Xtool PS201 handheld Heavy duty CAN OBDII CODE READER for DIYers

Xtool PS201 heavy duty code reader is special designed for heavy duty vehicles which is CAN or OBDII compliant made 1996-up, Xtool PS201 works with both gasoline and diesel engine, it is the first original handheld (LCD screen: 160*160) heavy duty scanner and therefore very suitable for both professional technicians and DIYers.

Xtool PS201 code reader outlook:
There is a Nylon bag and packed with one PS201 Main unit, one 6+9PIN Extension cable, one OBDII connector, one card reader, one user manual and one Standard carton BOX. This bag only weights 1.2KG, which is so easy to take.

xtool ps201 package.jpg
Xtool PS201 features that beat other similar truck scanners:
1. High Quality Material ABS, Comfortable & Durable
2. ARM Chip, High Speed
3. Cover the gasoline truck models with EOBD/CANBUS port made 1996-up, as well as the diesel truck models with OBDII port.
4. Handheld: working without connecting with computer, display test results on the screen.
5. Plug and Play: No need any setting, plug and play. The basic function is satisfactory to most technicians; it keeps away from oil stains
6. Who can use Xtool PS201, it is small and easy to use, therefore it suitable for professional technicians and DIYers/ beginners.
7. Software Updating Online at
8. Class 4 - Class 8 truck coverage featuring "Automatic Protocol Search".
9. HD J1587 / J1708 and J1939 CAN, Engine, Transmission/ABS coverage and more!
10. Only €208 + shipping cost, which is affordable.

Xtool PS201 reader compatible electronic control systems:
Engine, Transmission and ABS

XTOOL PS201 scanner function:
1) Live vehicle data:
- Engine speed
- Engine ECU temperature
- Percent acceleration pedal position
- Engine intercooler temperature
- Engine coolant temperature
- Battery volts
- Alternator volts
- Ambient air temperature
- Air inlet temperature

2) Diagnostic function
- Read and clear diagnostic trouble codes
- Global OBD II - All 9 Modes.
- Fast Global OBD II Quick Test
Support multiple Global OBD II trouble code requests, generic codes (mode 3), pending codes (mode 7), enhanced codes, and GM DTC status.
* On-screen definitions of diagnostic trouble codes.
* Set measurement units in SAE English/Metric.

XTOOL PS201 truck scanner vehicle coverage and protocol in details:
* Passenger cars and commercial vehicles
* Tow trucks, recreational vehicles, cement trucks, dump trucks, garbage trucks, buses, step vans, municipal vehicles, refrigerated trucks, and conventional trucks
* Heavy-Duty Standard compliant construction, marine, agriculture, and other industrial diesel power plant configurations
Compatible protocol:
OBD II: ISO 14230, ISO15765, SAE J1850
HD OBD II: SAE J1939 CAN, SAE J1708/J587

Select [Diagnose] and press [ENTER] button, PS201 includes OBDII and HD OBD II.

On light duty vehicles, it is with an OBD 16Pin connector, select OBD II.
On medium duty vehicles, it is with an OBD 16Pin connector, select OBD II.
On heavy duty vehicles:
On vehicles with an OBD-16 pin connector, select between J1708/J1587 or J1939 protocol.
On vehicles with a 9 pin connector, select between J1708/J1587 or J1939 protocol.
On vehicles with a 6 pin connector, only support J1708/J1587 protocol.
On vehicles with an 8 pin connector, only support J1708/J1587 protocol.
On vehicles with an R-16 pin connector, only support J1939 protocol

For more details, please refer to user manual:

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