850 OBD-II
OBDII - ELM327 Terminal tool for 96-00 Volvos
App info
App description
Android App Analysis and Review: 850 OBD-II, Developed by xiaotec. Listed in Auto & vehicles Category. Current Version Is 1.9.4, Updated On 12/05/2025 . According to users reviews on Google Play: 850 OBD-II. Achieved Over 5 thousand Installs. 850 OBD-II Currently Has 215 Reviews, Average Rating 4.5 Stars
This app is mainly for P80 Volvos of years 1996-00 [P1, P2 Platform support too!] with ELM327 bluetooth/Wifi/USB dongle to diagnose and even program little bit. Exceeding usual standard OBDII capabilities (ex. Pxxx codes not being there in case of fault) to read individual modules directly to help diagnose problems.>>>Please check website for latest and more information<<<
Requirement!:
ELM327(V1.4b or greater).
Most common problems comes when ELM is not having good firmware! Example missing command set. These works only with standard OBDII stuff and not on app most functions. App has pop up to notify user if this detected.
Support:
850/900 [S/V90] series
Note! Yazaki dash, M4.3, MFI system (LH-jetronic 3.2 & EZ129K), Fenix 5.2, Motronic M4.3, ECC(A/C) and Cruise Control are not reachable by ELM327!
S40/V40 models up to year 2004
Lately has been added ABS and Dashboard programming for these models
S70/V70/XC70
Mostly all has OBDII support except Fenix 5.2 ECM and Cruise.
P80 Year models 1999-2000
All modules covered?
CDM, ABS, TCM, ECM, ECC, VGLA (Remote program!).. etc.
C70 year models up to 2004
Additionally to previous listing:
+ROPS
+CAB (Cab Control System) reading and clearing fault codes.
P2 Platform year models since 2000+ (and 1998+ S80)
CEM, ABS/BCM, TCM, ME7, MSA15.8, EDC16, ETM, DEM
P2 Year models since 2005+ (SVXC70, S60, S80 etc..)
You most likely are required change the setting of "CAN Bus year" to "2005 up" to get connection on supported modules.
Main features:
+Service Light (SRI) reset/programming
+Fault Code (DTC) Read & Clear
+Live (real time sensor data)
+Read info of the system (ex. part numbers of ECUs and configurations)
+Many Advanced commands like Injector testing (Motronic M4.4), TDi Fuel pump Dynamic Timing (MSA15.7), VGLA Remote Programming (fully now without dealership!) etc..
SRS light? It will turn off if there is no fault codes left.
Capable of:
-Program and adjust modules parameters via Service >> Advanced commands.
-Read some basic standard OBDII stuff via Scan(P0* -codes, MIL light status, Supported PIDs - refer for Live).
Live (scrolling values):
+ABS/BCM (P80 Platform)
+SRS (airbag)
+Instrument panel (COMBI)
+AW 50-42 / AW 30-43 (Automatic Gearbox)
+MSA15.7
+Motronic 4.4
+ME7 (CAN)
+Immobilizer
+VGLA
+ECC
+POWER SEATS
+HEAT (CPM)
-Read and translate Volvo specific DTC:s.
+MSA15.7 (only with D5252T engines!)
+AW 50-42 / AW 30-43
+COMBI
+VGLA
+912-D Heater
+ECC (only S40/V40, C70/S70/V70/XC70)
+IMMO
+EMS2000
+RTI
+Power Seats
+SRS (1996-2000 models)
+DENSO
+CAB (CCU)
+ROPS (Roll Over Protection)
+CEM
+ABS/BCM
+ME7
+EDC16
+MSA15.8
+DEM
Component test (Activation):
(run out of space)
...
Please refer website information as its most complete list!
-You can use this App too as a terminal for ELM327 to send individual hand written commands at Service screen for what ever you want and supports multiple command sent at once. Please read ( i ) - button in app.
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There will be some errors/bugs as i can test things mostly on my own Volvo and or bench. So when you send that log to me via email (via settings) i look what i can do!
Will be updated based on feedback.
Thanks for your support! I hope this will be useful and i will make it even more useful by time!
I don´t take any responsibility what this app can cause by using it or while using it.
I don´t warrant any things this app says. Many are just best guess by study and will be fixed as noted.
App doesn't have any tracking of users (location permission asked due because of bluetooth permissions*) only what Google Play Store does itself(counting etc).
*To access the hardware identifiers of nearby external devices via Bluetooth -- scans, your app must now have the ACCESS_FINE_LOCATION or ACCESS_COARSE_LOCATION permissions
*To have Wifi support needed to have next permissions; CHANGE_WIFI_STATE and android.permission.INTERNET.
Made in Finland
- Sincerely Aleksi Venäläinen
What's New
+ Thanks reporting! Bug fix: OBDII Standard with multi ECU reading on 40 cars.
+ Adjusted more basic timeout setting to help on some cases where connection messages wont come through.
+ 40 Series CEM DTC translations some texts added to make be more specific of the possible issue.
+ P1 DTC bugs in fault code reading fixed where it did show only amount of them but no codes.
+ Adjusted more basic timeout setting to help on some cases where connection messages wont come through.
+ 40 Series CEM DTC translations some texts added to make be more specific of the possible issue.
+ P1 DTC bugs in fault code reading fixed where it did show only amount of them but no codes.
Recent Comments
JULIAN V (GeckoXL-7)
The devolper is making this app better and better. It worked well on VGLA wish I could enable disable alarm but realise this needs software loaded or does it? I m sure it's most likely just switching a value in the module but would help ones with faulty siren modules or wanting to install a siren and activate their alarm to use the siren. . Can scan all modules on my C70 and woking ok on S40. Keep up the good work 😁 vgla update works absolutely amazing work..
dj shimon
Amazing! 1997 Volvo 960. I had removed airbag, turned on car and srs light came on-there was no problem it was my error. Took a minute to get the Bluetooth to connect but it was written in the very small (font) instructions how to connect. Thank you people from Finland and others who have developed this app!
Alan Boyd
I believe this is the most complete scanning app available for the Volvo 850, at least at this price. What it lacks in form (utilitarian and sometimes confusing user interface), it makes up in function (scans many systems beyond OBD-II). A fully compatible ELM327-chip-based scanner is required to take full advantage of the app (I use BAFX PRODUCTS OBD-II Scanner with good results). The developer also responded with helpful information within 24 hours when I had questions.
Philip Janssen
Great app that enables you to read every module (on a Volvo 850/V70) individually, which is something even Volvo Vida won't do. A must-have app for every Volvo 850/V70 classic enthousiast. Do make sure you have a good, fully functioning ELM-327, because many of the Chinese knockoffs I have tried don't have the full ISO-9141-1 control set available which makes them useless with this app. Would love to see IMMO programming in this app, by the way. Edit: OBDLink SX adapter works flawlessly.
A Google user
This app is awesome! I installed it nearly 2 years ago and it has been indispensable for reset service lights, pulling mileage from the computer and reading live data. I dont know if it can reset the SRS light but would love for that to become a feature.
A Google user
After hours of searching for a way to use my bluetooth obdII device to find the total miles on my 1996 Volvo 850 I came across this and it worked!!! I just started it up, linked it with the device (already inserted into the port) and ran the scan function. Thank you!
Karlo Pušić
Works great for Volvo S40 T4 147kW 1997 and Volvo S40 1.6 2004!! I highly recommend this app, it has saved both my cars.
Carl - Eng Guy
Works excellent, you can read error codes, reset the service light and best of all the true mileage if your odometer gear breaks. Well worth the cost.