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Questions tagged [obd-ii]

On-Board Diagnostics-II (OBD-II). Questions usually involve scan tools, their use and their compatibility, as well as how to interpret Diagnostic Trouble Codes (DTCs).

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21 views

Mazda 3 OBD - CAN codes(ELM327) Programming

I have Mazda 3 (2005) and i read a while ago that i can use ELM327 (OBD2) to automate many tasks like. Lock & Unlock my cars doors Check whether my car doors are locked Check A/C Temperature ( I ...
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31 views

Can I read PID from other protocol?

My car (Renault Megane II) sharing PIDs through KWP protocol but also sharing other data (more advanced) through CAN. Some of data which I want to read is not available through KWP (PID). Is there a ...
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24 views

How to control/turn on dash board lights (ex. engine light) and alarms (ex. open door alarm, car alarm, etc.) with OBD II port?

Wondering how I would be able to send signals to my car (ford focus 2014) in order to turn on and control lights on the dash and various alarms in the car such as the open door alarm and car alarm. ...
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14 views

Siemens sim2k-34vr ecu parametrs and service ids

I need to read parametres like RPM of the engine from siemens sim2k-34vr ECU from obd2 port through K-line protocol,I tried standard service id 0x01 to read current data but ECU said 0x01 service id ...
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90 views

Evap System Leak, Repair and Clear Codes to Pass USA State Emission Inspection?

I'm aware of two related issues here Does Check Engine Light Clear Itself... I need the correct 2010 ... drive cycle steps to clear a “Permanent ” P0456 code I've just completed a particularly nasty ...
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1answer
24 views

Are “incomplete monitors” and “cleared codes” the same thing?

I have heard both usages. I guess that they are the same thing but wasn't exactly sure.
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1answer
33 views

obd2 port construction , Toyota Camry 95 and dodge durango 2002

I have a product that takes an obd 2 plug for power and I don't want to use my standard obd port. I need to create an obd 2 port for power purposes only, how could I do this and does the port run at ...
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1answer
26 views

04 Astra TS CDX: traction control light on, then power loss. No codes

This is the Australian model (Holden). Automatic transmission. About a month ago I was driving normally and the service light and traction control light came on at the same time. Performance didn't ...
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15 views

Volvo - send commands to read DTCs

I tried finding out the commands a diagnostic tool sends to my Volvo and I got this - 1D D0 16 16 03 22 F1 86 Protocol - CAN 29/500 (elm command: AT SP 7) Can someone help me with the method to ...
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1answer
39 views

Obd scanner requirements

My 1998 vw Jetta just died in my garage. Does it have to be running while using a obd scanner or will the electrical system still show the fault codes? Thank you
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38 views

OBD2 not showing up under Bluetooth devices

When plugged into one car it shows up but in the other one it doesn't. So I know the obd2 itself scanner is not dead. In the working vehicle all functions are working. works in 2005 Porsche Cayenne. ...
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49 views

Problem diagnostic on Toyota Estima

In relation to my previous question: Hybrid battery not charging fully This morning I took the vehicle to the mechanic who has serviced all of my cars for the last 10 years. He called me later in ...
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54 views

Engine warning light P2191 / Hyundai Veloster problem starting when cold

on monday I had some issues starting the car and then an engine warning light with the code P2191. I clear the error but it appeared again. This is the starting sequence values of o2 and other: https:/...
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1answer
40 views

Use OBD to check car status

i wanted to know if it's possible to use a cheap OBD scanner connect the car to a computer and see the status of the locking system, if the car is locked or not, i dont want to change or send orders ...
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18 views

What does P0328 means?

Knock sensor High Input The problem reappears even by clearing the error with the knock sensor unplugged… Is it something expected ? Does it necessarily mean there’s a short circuit ? If not what ...
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48 views

Battery died a few months ago. Since then catalytic converter smog test not passed

I have an old 2000 Camry car that died in storage and so I replaced the battery 4 months ago. That reset all the monitors. Since bringing it back up it also had a check engine light which required me ...
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88 views

OBDLink Settings for Fuel Economy

Specs: App: OBDLink v5.4.1.1072 (iOS) Adaptor: OBDLink MX+ (bluetooth) Vehicle: 1999 Ford F250 7.3 turbo diesel (Aug 98 Production) Have been working with this Scantool for a couple weeks now, by ...
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86 views

Is OBD II is still relevant or does it have a future?

I am thinking to invest and buy an OBD-II scanner. Before I do that, I need to know for how long automakers will comply and support OBD-II standard. I am asking since I am planning to buy a 2019 ...
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3answers
70 views

Are all OBD current data available on the CAN-BUS without request?

I am analyzing the CAN-BUS data from my motorcycle. I logged all the CAN-BUS traffic. One time with an ELM327 adapter connected and one time without. I am searching for the value of the Intake air ...
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424 views

Accelerator pedal position D and E sensors on OBDII

When monitoring vehicle data via OBDII port, I see that i have accelerator pedal position D and E. What are these and can I calculate overall pedal position from them? Thank you
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68 views

Ford mondeo mk3, obd not connecting to computer

I have an Ford mondeo mk3 where the air con isn't working and there is no voltage to the pressure sensors. So I was going to look for error codes. However when I connected the obd it can't connect to ...
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1answer
417 views

VW Golf Mk7 TSI Electronic Stabilty Control (ESC) error light on

I have a VW Golf Mk7 TSI Comfortline 1.4. My ESC error light is on, though I've had no recent work done on the car. I have taken the battery out and sent the car to a super service technician who ...
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76 views

OBDII Code P0348: Camshaft Position Sensor A

Last night, the check engine light went on on my 2006 Toyota Tacoma with 152K miles. When I got home, I plugged in my OBDII code reader and got Does this mean I just need to replace one of my ...
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26 views

How to completely eliminate the reverse beep on a 2012 Prius

I followed these instructions (same as described in method 3 of a wikiHow page) to "disable" the reverse beep on my 2012 Prius using a bluetooth OBD2 adapter and a mobile app to connect to it. Type: ...
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221 views

P0340 code, even after camshaft sensor replacement [Solved]

I drive a 2004 Honda Civic ex coupe manual with ABS, engine code D17A2 (SOHC, Vtec) I was driving my car and slowly revved up to 7krpm (smart, I realize) and suddenly my car lost power until 3500rpm ...
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28 views

OBD2 VW Passat 3.BG build year 2002 - Connection Problems

Since two month I'm owner of a VW Passat 3.BG (Build year 2002, 1.6l, Benzin) and since my last drive the malfunction indicator light is on. Therefore, I thought about using an OBD2-Wifi Adapter to ...
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36 views

Which wires provide keep alive power to the PCM in 2012 Ford Escape?

I have code P1633 - as far as I've check all the fuses in the power distribution (engine fuse) box have continuity - I don't know how to test relays? Next up I want to check where the harness plugs ...
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81 views

ODB key pairing tools allow for easy theft - technical necessity or manufacturing decision

My 2014 Landrover Discovery 4 was stolen when they picked the lock and paired a new key with it using the ODB port. As it is keyless start, that is all they needed to drive it away. I still have both ...
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50 views

Ways to maintain the ᴍɪʟ disabled on a 2007 Yaris Volkswagen scandal like…

Well it’s a strange problem after taking the cheapest repair shop of the city where currently anything is not from me yet : engine speed is unstable after 70℃ on gasoline and 55℃ on ʟᴘɢ mode and air ...
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1answer
135 views

Long start then Check Engine Light On

I have a 2009 Honda Accord with about 150k miles on it. Over the last couple weeks I noticed the crank time getting slightly longer then today it took a really long time before turning over and now ...
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77 views

Engine lean issues

Vehicle is a 2006 Ford Courier, started having hesitation/loss of power after fill up at a gas station that I'd never been to before. I depend on it for transport so I'm forced to still drive it, ...
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22 views

What’s C3103 error code does means for my car?

I have error code C3103 which reappear randomly every 30km to 50km. But absolutely no description attached beside C means chassis. What does it means and what’s the additional steps to diagnoze ?
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86 views

Where is the injector circuit on a 2007 Toyota Yaris?

I have the PO201 error code which appears randomly every 30Km to 50 Km. The issue sounds possible as the car ran 2000Km with a damaged spark in cylinder 1 before repair. However, they are no circuits ...
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2answers
96 views

OBD2 device that connects over cellular data?

I'm looking to monitor any and all stats of my vehicle. Are there any OBD devices that connect remotely over cellular data, and come with a nice phone app? I'd like to be able to monitor the car from ...
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1answer
70 views

How does a typical OBD communication start?

I'm trying to understand how, at the level of SID (Service Identifier) ​​and PID (Parameter Identifier), a communication must start between an external scan tool and any vehicle ECU (Electronic ...
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247 views

Can an OBD2 device be used to limit vehicle speed?

Is it possible? And if so, which OBD2 device can do it?
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57 views

Bluetooth OBD-ii hardwire question

I am looking to hardwire in a bluetooth OBD-II scanner into my car (2013 Subaru Impreza WRX) so that I can display gauges on my phone with Torque Pro. My car has a CAN-H and CAN-L in the radio ...
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39 views

2010 Equinox Engine Code Mystery

I just replaced the proverbial intake and exhaust solenoids on my 2010 Equinox LT. After driving it around running errands for a bit, the check engine light came on. It threw 2 codes. P0420 and P0420 ...
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325 views

Where I can find Specific PIDs list for Hyundai Motor and Mitsubishi Motor? [closed]

I am looking for specific PIDs for Hyundai and Mitsubishi vehicles. Can you tell where I can find Specific PIDs list for Hyundai Motor and Mitsubishi Motor?
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45 views

How to calculate accurate fuel consumption for Diesel engine by using OBD data? [duplicate]

Can you recommend formula for calculating fuel consumption using OBD data for diesel engine? I find a article(http://www.windmill.co.uk/obdii.pdf) about fuel calculation using vehicle speed and MAF(...
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58 views

Which wire to cut from OBD2 connector to prevent theft of a Mini Cooper S?

Just bought a Mini Cooper S convertible 2013 and read about the way thieves steal cars nowadays: by copying the key via the OBD2 connector. There are several (expensive) solutions for this out there, ...
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1answer
90 views

Could the OBD2 connector be used to switch gears?

What the title says, could I use an OBD2 code to control gear shifts in an automatic car? For example send an OBD2 code via a microcomputer like the Raspberry Pi. The car in question is a 2008 BMW e60 ...
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2answers
276 views

Can 2 devices plugged in obd port cause problem?

I'm newbye in this area, so I apologize in advance if I will ask something stupid. Shortly, I'm writing a software on top of connected cars that means that we are going to decorate and package data ...
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1answer
66 views

Re-wiring OBD port

I was reading online about thieves 'hacking' the OBD2 port on push button start vehicles and there seems to be little discussion around OBD2 port locks or moving OBD ports. I was wondering if any has ...
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64 views

Mapping VW DTCs from a scantool to the raw data obtained

I scanned a VW Golf TDI 2015 using a scantool (at a workshop) and it gave the following 2 codes - Engine module: P0103 - Mass Air Flow (MAF) (G70): Signal too High Instrument cluster module: ...
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60 views

ELM327 — how to read parameters

I got the ELM327 adapter and downloaded the carscanner app. It really did help understand some problems my 2016 rav4 was having lately. But I'm not sure how to interpret some of the parameters, i.e ...
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14 views

OBD GPS device stopped working?

I own an Indian version i20 and plugged in an OBD device (zyme pro) to track the car. It worked great for 2 days however i went to motor shop for seat covers and reverse camera and suddenly the GPS ...
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2answers
92 views

Isuzu D-max 3.0 2009 port OBDII

I'm not a mechanic or anything, but I'm too curious. I live in Colombia and I have a vehicle that is marketed here as Chevrolet Isuzu D-max 3.0 model 2009 (diesel engine) I know that my vehicle has ...
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2answers
762 views

Calculating fuel flow rate through obd || sensor not supporting 015E and 0110 commands

I have been working on a project where i want to calulate fuel flow rate using data from the obd2 sensor. The car on which i was testing didn't support the pid 015E which is for fuel flow rate. Then i ...
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78 views

Interfacing with CAN bus

I am looking to write an application in C# and use both ARM based computers and x86 based computers. My question here is when using a J1939 to DB9 cable, do I need a specialized interface for the CAN ...