GODIAG GD203 is a professional handheld diagnostic device which is tailored to the needs of mechanic technicians and enthusiasts. More than 50 vehicle brands (including mainstream car models in North America, Asia and Europe, etc.) can be served by it. GODIAG GD203 is of high quality at a reasonable price.  

GODIAG GD203 offers ABS&SRS dual system diagnosis, the most commonly used service (like oil lamp/service reset, EPB, TPS, SAS), airbag, ABS diagnostic solutions and 28 special reset functions(like TPMS, EPB, oil reset service, ABS, Airbag, DPF, throttle TBA/TPS), battery configuration, etc. It is portable, easy to use, and also supports OBDII scanning. 
 
GODIAG GD203 stands out among a variety of similar tools for a wider coverage of vehicles, more accurate diagnosis, more reliable performance and better user experience.


Highlights of GoDiag GD203

1. 【ABS & SRS Diagnosis】
GODIAG GD203 ABS scanner can troubleshoot the ABS issue with a visual inspection of all brake components that caused the warning light, and turn the light off. Furthermore, by detecting every electronic parameters in SRS system to check their health status, this diagnostic tool can address the SRS potential issues timely to ensure your driving safety, and turn off the warning light of Airbag.
2. 【28+ Special Functions】
In addition to the basic scanning and diagnostic functions, GODIAG GD203 can also provide 28 kinds of maintenance services for your car. Including oil Light Service/Reset, ABS Bleeding, EPB Service, DPF Regeneration, TPMS Adaptation, ASF and many other hot and special features, to provide a full range of maintenance services for your car.
3. 【Vehicle Doctor & Smog Check Helper】
GODIAG GD203 OBDⅡ Scanner has powerful OBDⅡ /EOBD diagnostics that you can use to read car fault codes and erase codes, becomes the best doctor for your car. In addition, the GODIAG GD203 car diagnostic scanner tool comes with I/M Readiness function to check the operations of the Emission System on OBD2 compliant vehicles to help your vehicle ready pass the annual smog check.
4. 【Save Your Money & Easy to Use】
If you buy this GODIAG GD203 car scanner, it can greatly reduce the cost of repairing and maintaining your car. And it's very simple to use, plug and play, with a simple screen for DIYers, even if you're not familiar with vehicle repair, you can quickly take control of this code reader, and get the services you want.
5. 【Upgrade & Warranty】
You will get FREE software and firmware upgrade and three-year warranty. By contacting our professional customer service team, we will provide you with 100% satisfactory service and technical assistance.
6. 【14 Multi-Language】English,Korea, Spanish, Portuguese, French, Thai, Hungarian, Swedish, Dutch, Japanese, Italian, Russian, German, Polish.
7.【Covers over 65 worldwide car make】




 

• Read codes
• Clear codes
• Vehicle information
• Live data
• View freeze frame data
• I/M readiness
• O2 monitor test
• On-board monitor test
• Component test
• Modules present

• Read codes
• Clear codes
• Vehicle information
• Live data
• View freeze frame data
• Component test/active test
• Adaptation

• To prevent the car being used by unauthorized keys, the anti-theft key matching function must be performed so that the immobilizer control system on the car identifies and authorizes remote control keys to normally use the car.
• When the ignition switch key, ignition switch, combined instrument panel, ECU, BCM, or remote control battery is replaced, anti-theft key matching must be performed.

• This function is used to learn the gearbox to improve shift quality.
• After the gearbox is dismounted or repaired (after battery powered off for some car series), shift delay or impact is caused. In this case, perform this function to make the gearbox compensate automatically according to driving conditions so as to reach more comfortable and ideal shift quality.

• This function is used to adjust car body height.
• When the car body height sensor and control module in the air suspension system are replaced or the car level is incorrect, perform this function to adjust the car body height sensor for horizontal calibration."

• The program can detect the Prime Fuel Pump function.
• Air often gets into the fuel line when a diesel vehicle change fuel or assembly fuel system. This causes a vehicle to have problems starting, forcing you to "prime" the fuel system to remove the air.

 

Function	Description	Model
OIL	Maintenance lamp reset:   1. The car maintenance light is on, indicating that it is time for the car to be maintained. 2. After completing the maintenance, you need to reset the mileage or driving time to zero. 3. After changing the engine oil or replacing the electrical accessories that monitor the life of the engine oil, the maintenance light must be reset to zero.	For Abarth,For Acura,For Astonmartin,For Audi,For Baic,For Bentley,BJXD,For BMW,For Bugatti,For  BYD,For Chang An,For Chery,For Chrysler,For Citroen,For Dacia,For Daewoo,For DF Citroen, For DF Peugeot,For DF Honda,For Faw Car,For  Ferrari, For Fiat, For Ford, For GM,For GQ Honda,For GQ Toyota,For Great Wall,For HC BMW,For For Holden,For Honda, For Hyundai,For Infiniti,For Isuzu,For JAC,For Jaguar,For Kia,For Karry,For Lamborghini, For LanciaFor ,Landrover,For Lexus,For Luxgen,For Maserati,For Maybach,For Mazda, For Mercedes-Benz, For Mini, For Mitsubishi,For Nissan, For Opel,For  Peugeot, For Porsche,For Proton,For Rely,For Renault,For Riich,For Rolls-Royce,For Romeo, For Rover,For Saab,For Scion,For Seat, For SHVW,For Skoda,For Smart,For Sprinter,For Subaru,For Suzuki, For Toyota,For Vauxhall,For Volvo,For VW,For Yema,For YQ Mazda,For YQ Toyota, For YQ VW,For Zotye
EPB	Brake pad replacement:   1. After the brake pad is used to a certain thickness, it will wear to the brake pad induction line. At this time, the brake pad sensing line will send a signal sensing line to the on-board computer, prompting to replace the brake pad. After replacing the brake pads, reset the brake pads, otherwise the car will continue to alarm. 2. Circumstances that need to be reset: a) After replacing the brake pads and brake pad wear sensors; b) The brake pad indicator light is on; c) After the short circuit of the brake pad sensor circuit is repaired; d) After replacing the servo motor;	For Abarth,For Acura,For Alfa,For Audi,For Bentley,For BJXD,For BMW,For Bugatti,For BYD,For Chery,For Chrysler,For Citroen,For Daewoo,For DF Citroen,For DF Honda,For DF Peugeot, For Faw Besturn,For Ferrari,For Fiat,For Ford,For GM, For GQ Honda,For GQ Toyota, For HC BMW,For Honda,For Hyundai,For Jaguar,For Kia,For Lancia,For Landrover, For Lexus,For Maserati, For Maybach,For Mazda,For Mercedes-Benz,For Mini,Opel, For Peugeot,For Porsche, For Renault,For Rolls-Roye, For Romeo,For Saab,For  Scion,For Seat,For SHVW, For Skoda, For Subaru,For Toyota,For Vauxhall, For Volvo,For Vw,For YQ Mazda, For YQ Toyota, For YQ VW,For Zotye
SAS	Steering angle reset:   1. The steering angle reset is to find the relative zero position where the car keeps driving in a straight line. Using this position as a reference, ECU can calculate the accurate angle when turning left and right. 2. Conditions that need to be reset:                                              a) Replace the steering angle position sensor;                            b) Replace the mechanical parts of the steering system;          c) Complete four-wheel alignment, body repair, etc.;	For Acura,For Audi,For BJXD,For BMW,For BYD,For ChanganFord,For Chery,For Chrysler,For Citroen, For Dacia,For Daewoo,For Daihatsu,For DFCITROEN,For DFFX,For DF Honda,For DF Nissan,For DF Peugeot,For DFPV,For Faw Besturn,For  Faw Car, For Ferrari, For Fiat, For Ford, For Geely, For GM, For GQ Honda, For GQ Toyota, For Great wall, For Haima, For HC BMW, For Honda, For Hyundai, For Infiniti,For  JAC,For Jaguar,For  Karry,For  KIA, For Lancia, For Landrover,For Lexus,For Maserati,For Maybach,For Mazda,For Mercedes-Benz, For For Mini, For Mitsubishi, For Nissan, For Opel, For Peugeot, For Porsche, For Proton,For Renault, For Romeo,For Scion,For Seat,For SHVW,For Skoda,For Smart,For Subaru,For Suzuki,For Toyota, For Vauxhall,For Volvo,For VW, For Yinxiang,For YQ Mazda,For YQ Toyota,For YQ VW
BRT	Battery matching:   1.Use the car diagnostic device to reset the car battery monitoting unit to clear original fault information about insufficient battery electric quantity, and match the battery again and monitor battery based on current battery information. 2. Battery matching is required in the following situations: a) Replace the main battery; b) Rematch the control module and the monitoring sensor;	For Audi,For Bentley,For BMW,For Bugatti,For Chang An Ford,For Chrysler,For Citroen, For DF Citroen,For DF Nissan,For DF Peugeot,For Faw Car, For Fiat, For Ford, For GQ Toyota, For HC BMW,For Hyundai,For Infiniti,For Jaguar, For Kia, For Lamborghini, For Lancia,For Landrover,For Lexus,For Mazda,For Mini,For Mitsubishi,For Nissan,For Opel, For Peugeot,For Porsche,For Seat,For Shvw,For Skoda,For Toyota,For Volvo,For VW,For YQ Mazda, For YQ Toyota,For YQ VW
ABS	ABS bleeding:   1.When the ABS contains air, the ABS bleeding function must be performed to bleed the brake system to restore ABS brake sensitivity. 2. ABS exhaust is required in the following situations:                a) After replacing the ABS computer and ABS pump;                b) After replacing the brake master cylinder, brake cylinder, brake pipeline, and brake fluid;	For Acura,For BJXD,For BMW,For BYD,For Chang An,For Chang He,For Chery,For Chrysler,For Citroen,For Daewoo,For Daihatsu,For DFFX,For DF Honda,For Faw Besturn,For Ferrari,For Fiat,For Ford,For Geely, For GQ Honda,For GQ Toyota,For Greatwall,For Haima,For HC BMW,For Honda,For Hyundai, For JAC,For Jaguar,For Jiachuang,For Karry,For Kia, For Lancia,For Landrover, For Lexus,For Liebao,For Maserati,For Mazda,For Mercedes-Benz,For Mini,For Mitsubishi, For MYHR,For NJYWK, For Opel,For Peugeot,For Proton,For  Rely,For Renault,For RIICH,For Romeo,For Saab,For Scion,For Smart,For  Ssangyong,For Toyato,For Vauxhall,For Yema,For Yinxiang,For YQ Mazda,For YQ Toyota,For Zhongshun
TPS	Throttle matching:   1.Use the car decoder to initialize the throttle actuation element so that the ECU learning value is returned to the initial status to more accurately regulate throttle (or idle motor) operations to control intake air quantity. 2.Throttle matching must be perFormed in the following cases: a) The ECU is replaced and the ECU does not yet store throttle working features.                            b) The ECU is disconnected and the ECU memory is lost. c) The throttle assembly is replaced. d) The intake passage is replaced or removed, which affects idle speed control by ECU and throttle body. e) The throttle is cleaned. Although the idle throttle potentiometer features are not changed, with the same throttle opening, the intake quantity has changed and idle speed control features have changed.	For Acura,For Audi,For BJXD,For BMW,For Brilliance,For BYD,For Chang An,For Chang An Ford,For Chery,For Chrysler,For Citroen,For Dacia,For Daewoo,For Dfcitroen,For DFFX,For DF Honda,For DF Nissan,For DF Peugeot,For DFPV,For Faw Besturn,For Faw Car,For Faw Tianjin,For Fiat,For Ford,For Geely,For GM,For GQ Honda,For GQ Toyota,For Great Wall,For Haima,For Haima Zhengzhou,For HC, For BMW,For Honda,For Huizhong,For Hyundai,For Infiniti,For Jac,For Jaguar,For Kia,For Lancia,For Landrover,For Lexus,For Lifan,For Maybach,For Mazda,For Mercedes-Benz, For Mini,For Mitsubishi, For Nissan,For Nissan Zhengzhou, For Opel,For Peugeot,For Porsche,For Proton,For Rely, For Renault,For Riich,For Romeo,For Saab,For Seat,For SHVW, For Skoda,For Suzuki,For Toyota,For Vauxhall, For Volvo,For VW,For Wuling,For Young Lotus,For YQ Toyota,For YQ VW,For Zhongxing
TPMS	Tire pressure reset:   1. After the tire pressure MIL turns on and maintenance is perFormed, the tire pressure resetting function must be perFormed to reset tire pressure and turn off the tire pressure MIL. 2. Circumstances that need to reset the tire pressure:                 a) The tire pressure is too low or leaking;                                 b) The tire pressure monitoring device is replaced or installed;   c) The tire is replaced, the tire pressure sensor is damaged, and the car with tire pressure monitoring function In the tire rotation, etc.;	For Acura,For Audi,For BJXD,For BMW,For BYD,For Chrysler,For DF Honda,For DF Nissan,For Ferrari,For Fiat,For Ford,For GQ Honda,For GQ Toyota,For Honda,For Hyundai,For Infiniti,For Jaguar, For KIA,For Lancia,For Landrover,For Lexus,For Maserati,For Mazda,For Mercedes-Benz, For Mini, For Mitsubishi,For Nissan,For Peugeot,For Porsche,For Renault,For Scion,For SHVW,For Seat, For Skoda,For Smart,For Subaru,For Toyota,For Volvo,For VW,For YQ Toyota,For YQ VW
DPF	DPF regeneration:   1. DPF regeneration is used to regularly clear PM (particulate matter) from the trap in combustion oxidation mode (such as high temperature heating combustion, fuel additive or catalyst reduce PM fire point combustion) to stabilize trap perFormance. 2. DPF regeneration matching must be perFormed in the following cases: a) The bleeding backpressure sensor is replaced. b) The PM trap is removed or replaced. c) The fuel additive injector is removed or replaced. d) The catalytic oxygenizer is removed or replaced.  e) The DPF regeneration MIL is on and maintenance is perFormed. f) The DPF regeneration control module is replaced.	For ACURA,For Audi,For BMW,For Chrysler,For Citroen,For Daewoo,For DF Honda,For Fiat,For Ford,For GM,For GQ Honda,For GQ Mazda,For Honda,For Hyundai,For Infiniti,For Jaguar,For KIA, For Lancia,For Landrover,For Lexus,For Maserati,For Mazda,For MercedesBenz,For Mini, For Mitsubishi,For Nissan,For Opel,For Peugeot,For Porsche,For Renault,For Romeo,For Scion, For Seat,For Skoda,For Subaru,For Suzuki,For Toyota,For Vauxhall,For Volvo,For VW
IMMO	Anti-theft matching:   1.To prevent the car being used by unauthorized keys, the anti-theft key matching function must be perFormed so that the immobilizer control system on the car identifies and authorizes remote control keys to normally use the car. 2.Need to do anti-theft matching:                                                a) When replacing the ignition switch key, ignition switch, remote control battery;                                                               b) Replace the combined instrument panel, engine control unit (ECU), and body control module (BCM);	For Acura,For Audi,For BAIC,For Beijing Jeep,For BJXD,For BMW,For Brilliance,For BYD,For Chang An,For Chang An Ford,For Chang He, For Chery,For Chrysler, For Citroen, For DF Citroen,For DFFX,For DF Honda, For DF Nissan,For DF Peugeot,For DFPV,For Dong Nan,For Faw Car,For Faw Tianjin,For Fiat,For Ford,For Geely,For GM,For GQ Honda, For GQ Toyota,For Greatwall,For Haima,For  Honda,For Huizhong,For Hyundai, For Infiniti,For JAC,For Jaguar,For Kia,For Lancia,For Landrover,For Lexus,For Mazda,For Mercedes-Benz,For Mitsubishi, For Nissan,For Nissan Zhengzhou,For Peugeot,For Renault, For Romeo,For Scion,For Seat,For Shvw, For Skoda,For Smart, For Ssangyong,For Suzuki,For Toyota,For VW, For Wuling,For Yongyuan,For  Young Lotus,For YQ Mazda,For YQ Toyota,For YQ VW,For Zhonghua
INJ	Injector coding:   1.Write injector actual code or rewrite code in the ECU to the injector code of the corresponding cylinder so as to more accurately control or correct cylinder injection quantity. 2.Need to do the coding of the injector:                                      a) After replacing the ECU and injector	For Acura,For Audi,For BMW,For Chery,For Chrysler,For Citroen,For Fiat,For Ford,For GM,For DF Honda,For Fiat,For GQ Honda,For Honda,For Hyundai,For Infiniti,For Jaguar,For Lancia,For Landrover,For Lexus,For Mazda,For Mercedes-Benz, For Mini, For For Mitsubishi, Nissan, For Peugeot,For  Porsche, For Renault,For  Romeo, For Smart,For Seat,For Skoda,For Subaru, For Suzuki,For Toyota, For Volvo,For VW
GEAR	Tooth learning:   1.The crankshaft position sensor learns adaptively. The crankshaft position sensor learns the machining error of the crankshaft teeth and stores it in the computer, so as to more accurately diagnose the engine misfire. 2.Need to do gear signal:                                                          a) After replacing the engine ECU, crankshaft position sensor, crankshaft flywheel;                                                                  b) After there is a fault code that the gear signal has not learned;	For Chang An,For Chery,For DFFX,For Geely,For JAC,For Nissan ZhengZhou,For Great Wall
SUS	Suspension matching:     1.This function is used to adjust car body height.   2.2. Suspension matching needs:                                                a) After replacing the vehicle height sensor and control module in the air suspension system;                                                      b) When the vehicle level is wrong;	For Jaguar,For Landrover,For Mercendes-Benz
SUNROOF	Sunroof initialization: This function is used to set sunroof lockup close, close on rainy days, slide/tilt sunroof memory function, outside temperature threshold, etc.	For BMW
GEARBOX	Gearbox matching:     1.This function is used to learn the gearbox to improve shift quality.   2. Suspension matching needs to be done:                              a) After the gearbox is disassembled or repaired (after some cars are powered off)	For Ford
AFS	Headlamp matching:    This function is to initialize the adaptive headlight system. The adaptive headlight system determines whether to automatically turn on the headlight according to ambient light intensity, monitors driving speed and body posture, and adjusts the headlight lighting angle.	For Audi,For Baic,For Bentley,For BYD,For Chang An,For Chery,Great Wall,For Haima,For Jaguar,For Landrover,For Roewe,For Seat,For Skoda,For VW,For Zotye
CLUTCH	Importance of clutch pedal free-play. Anything less than the correct amount of free play (or clearance) will result in clutch slip, because the pressure plate will be unable to exert its full pressure on the friction plate, clutch linkage adjustment to compensate For clutch wear.	For Citroen,For Jaguar,For Landrover,For Peugeot
LANG CHANGE	This routine is to change language displayed in the instrument.	For Peugeot
SEAT MATCH	A memory seat is essentially an electrically-adjustable car seat which can be moved into pre-set positions at the push of a button. As a result of the removal of the DCC fuse, the 'driving position memory' function of the driver and passenger side seat will be inoperative due to the loss of seat position memory stored in the seat ECU. The seat (position control) ECU may need to be initialized if the seat memory settings cannot be recorded.	For Jaguar,For Landrover,For Ssangyong
WINDOWS DOOR	When replacing door glass and battery, special steps need to be taken in order to properly reprogram the vehicle to make the electric windows work properly. The door window glass position can be learned by executing this routine, which enables pinch protection and one touch up function.	For Daewoo,For Jaguar,For Landrover
TURBO	This routine is required if the secondary turbo charger is replaced. This will learn the offset values For the turbine shut-off valve.	For Jaguar,For Landrover
PFP	1.The program can detect the Prime Fuel Pump function. 2.Air often gets into the fuel line when a diesel vehicle change fuel or assembly fuel system. This causes a vehicle to have problems starting, Forcing you to 'prime' the fuel system to remove the air.	For Dudi,For Bentley,For Bugatti,For Lamborghini,For Seat,For Skoda,For VW
Evaporative test	The EVAP system monitor checks For fuel vapor leaks by perForming either a pressure or vacuum test on the fuel system. This routine is will create a positive pressure in the tank to determine if there are any leaks in the fuel system.	For Jaguar,For Landrover
Replace Aibbag ECU	This program can be executed to replace the airbag ECU	module. For Jaguar,For Landrover,For Opel
AT Adaption	After each repair or transmission service, the transmission adaptation control will cause the Transmission Control Module (TCM) to relearn the change in transmission tolerances to improve the transmission quality, and to adjust the transition of the gear shift according to the driving style.\nThis procedure is used to clear the adaptive values in the transmission control unit. This may be required when changing the transmission, downloading software, or perForming any other gearbox-related activity.\n\nThis command allows the adaptive shift points to be relearnt. CAUTION: Refer to workshop manual For correct procedure.	For Jaguar,For Landrover
EGR(Exhaust-gas Recirculation) Adaption	This function is to learn the EGR (Exhaust Gas Recirculation) valve after it is cleaned or replaced.	For BMW,For Citroen,For GM,For Peugeot,For Renault,For Volvo
Chage Tire Size	The vehicle's computer calculates the vehicle's speed based on the diameter of the stock tires. After changing the tire size, the vehicle's computer doesn't know how fast your vehicle is running, which will affect speedometer accuracy or transmission shift time. This routine is to recalibrate speedometer after changing the tire size.	For Landrover,For Volvo
EVAP TEST	The EVAP system monitor checks for fuel vapor leaks by performing either a pressure or vacuum test on the fuel system. This routine will create a positive pressure in the tank to determine if there are any leaks in the fuel system.	ForJaguar,For Landrover
Adjustment A/F【Fuel Adjustment】	Adjust the fuel system with automatic control, which is mainly used For cars in the Latin American and Brazilian markets.	For Fiat,For Ford,For GM,For VW