Guide to reflash GM MDI Multiple Diagnostic Interface

GM MDI Multiple Diagnostic Interface NO connection problem can be solved by reflashing MDI diagnostic scanner.

Reflash GM MDI:
step 1 press button and connect with power

2 wait about 10 secs ,keep press the button,no stop

3 when all light turn on,you can take off the button

4 connect with usb key ,prepare for reflash

5 open GM MDI manager ,choose recover

http://www.obdii365.com/service/how-to-reflash-gm-mdi-multiple-diagnostic-interface-68744.html

GM MDI troubleshoot Chevrolet Cruze Engine Fault

GM MDI Multiple Diagnostic Tool is an interface between the vehicle DLC and a PC (by wired USB, wired Ethernet, wireless Ethernet ) and TIS2web.

During driving, the engine fault light is on, but with no other abnormality.

A mileage of about 32,000 km, engine model LDE, 1.6L engine displacement of 2010 Chevrolet Cruze sedan.
Troubleshooting: technician check the car road test, during driving, the engine fault LED is lit, then try again to delete fault code, and fault indicator illuminates.

Then technician may consider:the problem of oil, spark plugs damaged canister valve damage and electromagnetic flow sensor is damaged.

You can use GM MDI to check the detailed problem.The system connection failure diagnostic GDS2 detection, fault code: P0172 fuel metering system is too thick. This fault code is common.Usually,the failure is: intake air flow sensor is damaged, the canister valve is damaged, poor quality gasoline, intake manifold check valve damage. Technicians and excluded one by one, which resulted in failure remains.

Check the data stream and found positive long-term fuel trim values ​​as high as 23.5%. Remove the spark plug check and found that the spark plug is completely black, and not the original parts. Replacing the original spark plug, then clean the fuel system after the test, the data shows that long-term fuel flow correction value has not changed, but also increase the throttle throttle cleaning temper phenomenon, what is the fuel cleaning 300kP, caused by the pressure is not enough? The fuel pressure is applied to the original car standard 380kPa test, did not change.

Technicians analyze this phenomenon may have oil to gasoline vapor lock, fuel pump pressure limiting valve or judgment may be catching. Tests show that found in the fuel pressure gauge connected to start the vehicle fuel gauge pressure reaches a peak value.
After trying to replace the fuel pump assembly test, troubleshooting.

Fault summary: This fault is not complex, but the process should be paid particular attention that this case has a fault code, it is easy to mix with other symptoms with other faults, such as air filter is dirty or clogged , throttle and other blockage can also occur this DTC, are particularly vulnerable to misdiagnosis.

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Cadillac XTS left door initialization not closed error

A customer who has a GM Cadillac XTS car, come to contact us :

"Hello, it’s Philippe I have a mileage of about 20,000 km, with a 2.0T engine and six-speed manual transmission 2014 GM Cadillac XTS sedan. In moving the dashboard prompt the driver information center, “the left rear door glass lifter for an initialization, left rear door is not closed . What tool shall I use to diagnose ? ”

According to obdii365.com engineers experience, they recommend the tool GM MDI Multiple Interface.

And we recommend it to the customer.

Customer placed order on our website and 2 weeks later, he emailed to us again:

” Hello dear, It’s Philippe again. I use the diagnostic detection GM GDS2 software Body Control Unit, found fault code U1544- lost communication with the device 4. Now that maintenance manual, the meaning of the fault code is body control unit and left rear window control unit lost communication.

I suspect that the power supply or the bus left rear window of the control unit is faulty, then the control circuit diagram for examination. Measured and found left rear window of the control unit power supply voltage of 12.46 V, described normal power supply control unit. Measuring the left rear window of the control unit grounding resistance is 0.53Ω, is also normal. Measuring the left rear window of the control unit LIN signal line voltage is 6.2 V, normal. At this point, it can determine the window control unit internal fault.

Thank you very much ”

How to refresh GM MDI Interface Firmware?

GM MDI Multi Diagnostic Interface is professional diagnostic tools for gm cars.GM MDI can support cars from 1990-2013 Year with OBD2 port.(For diagnosis function,if use tech2win software,support 1996-2014 year.If use gds2 software,support 2009-2012 year.For programming function,about 2006-2011 year.If you need program newer cars,need customer have online account.)

Sometimes,the GM MDI interface needs to reflash hardware,here obdii365.com share you how to reflash firmware of GM MDI?

How to refresh GM MDI Multiple Diagnostic Interface Firmware?

Without usb cable and power adapter,press the black power button on the device,at the same time,connect device with usb cable and power adapter,until five led lights one the device is on,release the black button.Then use the USB cable connect device with computer.

Start the “GM MDI Manager”,choose recover button.Then the process is finished.

check guide with images

http://blog.obdii365.com/2021/01/20/update-gm-mdi-mdi2-firmware/

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GM MDI failed to connect with wireless connection

What if GM MDI is unable to connect on Wireless interface?



· Check the wireless card is properly seated in the MDI.

· Confirm LEDs on the wireless card are lighted when the MDI is powered.

· Verify the MDI and PC are within range of the Access Point or Router.

· Verify that the PC is connected to the Access Point or Router.

· Verify signal strength of the wireless network from the PC.

· Check Firewall Settings on your PC

· USB connection takes precedence, unplug USB cable.

· Wired Ethernet connection takes precedence, unplug Ethernet cable.

· Connect to MDI using USB and run MDI Manager to verify the Wireless Settings are configured correctly. ( Refer to: How do I configure the Wireless interface?)

– Wireless interface is enabled.

-AP settings configured for proper security (authentication, encryption).

-Signal Quality (fair, good, excellent) indicates connected to AP.

-The MDI, PC and AP are on the same subnet o If using static IP, verify the IP Address and Subnet mask are correct (supplied by network administrator.

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GM MDI scanner asks for software update solution

My GM MDI Multiple Diagnostic Interface with GDS2 and Tech2win software recently display update GM MDI S/W message, what’s the problem? Why does the GM MDI ask for update S/W?


Solution from obdii365.com technician:
The MDI software needs to be updated. This condition typically occurs when new GM MDI software is installed on the PC.
1. Connect to MDI with USB.
2. Select ‘Update MDI’
3. Start Update’ to perform a software update

How to update GM MDI software?

First, click the “MDI_Manager” icon and start the MDI Manager software, connect the PC and the MDI power by plugging the USB cable into the them and power on the MDI by plugging in the AC 12-volt adapter.  When the MDI powers up, the green LEDs will flash in succession while the MDI performs its power on self-test. Once the test detects an MDI fault, the red LED will be illuminated and if the self-test is complete, there will only has the green Power LED be illuminated. Now you are ready to go on your operation.

In the “Detected MDIs” window, the MDI will appear and the “Detected MDIs” window is the main screen for information on your MDIs. Click the “MDI” icon(below the icon, there will have the serial number) and click the button of “Update MDI”.

Then you need to select the latest version of the MDI Tester Software and click “Start Update”. Remember,during the update process, you can not unplug the MDI from the PC or remove the power from the MDI. After you see the message “The MDI will now automatically restart. Wait until you hear the ‘beep’, then the MDI is ready for use”, click “OK” and the MDI Manager software switches automatically to the MDI Explorer tab and your MDI will appear when it has finished the restart and Power On Self Test.

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GM MDI scanner GDS Tech2Win review

GM MDI (General Motors Multiple Diagnostic Interface) with WiFi is an interface between your vehicle DLC and a PC (by wired USB, wired Ethernet, wireless Ethernet ) and TIS2web.

GM MDI scan tool can certainly test all of the GM car from 1990 to 2013( Supports 2010-2012 Australia Holden).

Are available for SPS programming on current and also future SGM vehicles.
Required for diagnostics on new SGM Global A Electrical Architecture Vehicles.
Used with TIS2Web, GM Global Diagnostics System (GDS), SPS and MDI Manager Software.
Allows for GDS diagnostic.

GM MDI China clone Working well. Tested with GDS2 v.12.

Device works with GDS2 (Opel).
Device works with Tech2Win. (Opel, Hammer)
Device not works with SAAB via Tech2Win.

Price: USD259 + shipping cost(based on your country)

Pay via Paypal

REAL PHOTOS

The MDI came ready to use with the software installed. It worked since I already had Tech2Win, GDS2 and GM MDI Manager installed on my laptop. It works extremely well and I have no problems with it. The product image at the time I order showed the cable keeper, A/C 12 volt adapter and multiple diagnostic interface user’s guide CD which is used to install the MDI manager software on your laptop. These items were not included. It also said it was Wifi but did not come with a wireless card but with a wireless interface instead. There are two versions of GM MDI interface on China market, cheaper MDI less than US$180 with only USB connection and the other more expensive with wifi wireless connection.

The product would work excellent if you had the MDI manager software already on your laptop.

  
My device tested with many cars for 4 months.
Device works with GDS2 (Opel).
Device works with Tech2Win. (Opel, Hammer)

Device not works with SAAB via Tech2Win.

Tested by my own, works with Saab 9-5, 2003, 3.0
It works with tis2000 and tech2win NAO.

My MDI clone works fine with tech2win and also TIS2000 software. Used it for diags and pcm flashing with no problem (through usb port only, cause wifi is unstable for programming functions).

Added a wireless card to that one too, same flawless performance.. Only issue for me is that they all have the same serial number.. So using 2 of them in the same shop with wireless would be impossible..

compared boards from a genuine to this clone, almost identical.. multiple layer pcbs, same tracers, didn’t see any difference except the board labeling was missing on the clone.
Wifi GM  mdi good, interface works online. update mdi 100%. offline not that good  for new cars.

Nissan Consult III Plus Ver.46.30 works on MDI interface as well (this is not tested by me, your are on your risk).

Function:
1. Diagnostic Trouble Codes (DTCs) Available Powertrain, Body, Chassis, Diagnostic Circuit Check system.
2. Ability to capture stored DTCs, Freeze Frame, Clear DTCs, Review DTCs.
3. Data Display: ECU, Vehicle Information.
4. SnapList: System Config, Data, Inputs, Outputs, Security, more….
5. Available diagnostic data parameters from the various system ECUs. A specific predefined list of diagnostic data parameters may be available
6. Bi-directional The authentic GM 1992-current year software will provide full bi-directional control when performing power train, chassis, and body diagnostics.
7. Support Vehicle Type: Car, LD Trk, MPV, Incomplete Medium Duty Truck, Saturn.

http://blog.obdii365.com/2016/04/04/wifi-gm-mdi-multi-interface-gds-tech2win-review/

GM MDI Multiple Diagnostic Interface vehicle list

WIFI GM MDI Multiple Diagnostic Scanner Interface has no specific support vehicle list， so we provide following list shows the vehicles which require the MDI for full diagnostics and reprogramming capabilities for customers of obdii365.com.

Vehicle Model	Vehicle Model Years Requiring MDI
Chevrolet Camaro	2010+
Buick Lacross	2010+
Cadillac SRX	2010+
GMC Terrain	2010+
Chevrolet Cruz	2011+
Chevrolet Volt	2011+
Buick Regal	2011+
Buick Verano	2012+
Chevrolet Sonic	2012+
Chevrolet Orlando	2012+
Cadillac ATS	2013+
Cadillac XTS	2013+
Chevrolet Malibu	2013+
Chevrolet Captiva	2013+

The GM MDI scan tool not only support list vehicles but also provides full coverage for all vehicles supported by the GM Tech 2.



GM MDI Software have updated to the 8.1.135.13 version. The GM mdi works with all GM and Chevrolet Vehicle from 1996 up to 2013 (also supports 2010-2012 Australia Holden). If you need newest version MDI software just contact us immediately.

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