Questions tagged [obd]
An acronym; On Board Diagnostics.
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What is the point of performing an OBD2 diagnostic scan if there is no malfunction indicator?
Where I live, it is common for car mechanics to help their customers who are planning to purchase a new used car by performing an OBD2 diagnostic test on the car in question, even if there are no ...
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Horsepower at wheels calculation
I have used Torque Pro App for sometime in my Hyundai i10 Era (2011 model) and it gives me Horsepower at wheels. But the values seems to be much less.
To find out the problem, I logged the car OBD ...
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How useful is a low-end corded OBD-II reader for inspecting a used car?
I purchased a low-end OBD-II reader from Wal-Mart a few months ago. Now I'm in the market to purchase a used car and I was wondering how useful the reader will be when I go to look at the vehicle. Of ...
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Mode 02 - Freeze frame data use
I got some data on sending 0202 command (Mode $02, PID 02). It is the freeze frame data. I don't understand why does anyone need the data? Do anyone (including mechanics) ever open Freeze frame data? ...
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About heavy-duty vehicle diagnostic port
I am trying to design an ELD device that could be connected to the deutsche 9 pin and 6 pin port on heavy-duty vehicles. Is there any place where I can get the pinout configuration of these ports for ...
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Retrieving handbrake status light and reverse light from OBD II
I have a project to replace my car's instrument panel with a Android tablet. So I'm developing an application that communicates with an ELM327 device through bluetooth. I have managed to successfully ...
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What is Honda HDS HIM?
I've been trying to find inexpensive PC based ways to connect to the older Honda's which use the 3-pin OBD connectors. I have run across a package being sold in various places called Honda HDS HIM.
I ...
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Relation of VIN of a car with emission norms of a country it is sold
A VIN of a car determines the country of manufacture. So if a car has a VIN of Canada (CARB emission standard) and is sold in India (BS-IV emission standard), will the car comply with BS-IV standards?
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On Board Diagnostics-II for Electric Vehicles
I'm learning about OBDII, and I'm wondering whether it is valid on EV's too.
According to Wikipedia's PIDs article, the Service 01 PID 51 (or Fuel Type) has a value 8 that means that the fuel type ...
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Difference between FMS and OBD
What is the difference between FMS and OBD. Whether OBD is a standard or protocol.
Recently I am working on a GPS device to tap the CAN bus in order to integrate with our fleet management system. In ...
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OBD or CAN - what's mandatory (EU and US)
First of all, I've already tried to do my research and tried to get all the info I'm asking for myself (which obviously didn't work).
I want to know if CAN or OBD(-II) are in fact mandatory in the US ...
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OBD MIL commanded status and DTC stored
OBD-II Mode 01 PID 0 gives commanded MIL on (bit A7, see link) and Number of confirmed emissions-related DTCs (bit A6-A0, see link).
I did hit Mode 01 PID 01 on a few cars but got surprising results.
...
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CAN data for Mahindra
I bought a new Mahindra Scorpio S10 and have been trying to read the CAN bus using ELM 327 Bluetooth OBD and Putty.
Configurations in Putty: Baud Rate 9600 (tried 115200 also), Data bits: 10, Stop ...
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OBD-II Mode and PIDs specifically used for Electric vehicles?
I am working on developing a vehicle CAN communications protocol being implemented in an electric vehicle. I was wondering if anyone knew if there is a standard MODE and PID for OBD-II messages ...
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Auto determine the bluetooth device is OBD or not?
Current I am working on OBDII. While in bluetooth discovery to connect obd, How I determine which device is obd and which device is normal bluetooth device.Because I want auto connect my app with obd.
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Mode 01 PID 01 OBD-II
https://en.wikipedia.org/wiki/OBD-II_PIDs#Mode_1_PID_01
Mode 01 PID 01 - Monitor status since DTCs cleared.
In the 1st chart, B7 is 'Reserved' and must be 0. But for a few cars (like Skoda Rapid) ...
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Less than specified bytes of data from OBD
0100 (https://en.wikipedia.org/wiki/OBD-II_PIDs#Mode_1_PID_00) should provide 4 bytes of data. But there has been cases, like Audi A4 2.0 TDI, where the data from 0100 was less than 4 bytes. So is the ...
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SilLabs OBDscan can't connect to Alfa 147: latency too high!
I have an OBD Scan tools built around the Silicon Labs CP210x chipset, but I can't get it to connect to my car at all.
When I connect the scan tool to my laptop USB port I have a driver installed and ...
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Reading OBD Data from the Old Honda 2+3 Pin DLC
I've got a 2000 Honda Civic iSR with the old 2+3 pin Honda DLC which I'd like to read ECU data from.
According to the Evoscan website the pinout for the 3 pin dlc is ISO 9141 K-Line, B+ and ground ...
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2005 Impala OBD2 not working right
I have a 2005 Chevrolet Impala (Base trim, 3.4L) and I recently purchased a cheap OBD2 Bluetooth reader. Unfortunately, Torque (Android app) isn't able to read data from this transmitter when ...
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Emission performance of a vehicle using OBD
The California Air Resource Board uses OBD scanner for emission testing. (https://www.arb.ca.gov/msprog/obdprog/obdprog.htm)
In other places like India, 'tail pipe exhaust gas analyse' method is ...
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Fault code decoding
I tried getting mode 03 (fault code) for Volkswagen Polo and Toyota Innova. I am unable to find how to decode it. Can someone please help me decode it (the method to decode the hex response)
Volvo: ...
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Honda Civic 2002 strange OBDII pinout
I have some trouble understanding the pinout of my OBDII plug. It appears that it has both grounds, K-Line, 12V and CAN Bus low (according to standard obdII plug). Therefore it does not have even one ...
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obd2 device on obd1 vehicle?
is there any way to make a obd2 plug in device (example gps tracker Metro Smart Ride) work on a obd1 vehicle. The device works and still has service. I no longer own a vehicle with obd2, but I'd still ...
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Using a device with external power and receive data from the CAN bus
I want to keep a device in always on situation in the car.
I do not want the device to drain the car battery.
The car is used at least once in two days and the current consumption of my device is ...
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OBD-II or CANopen
I am relatively new to CAN Bus and been doing some research on a new system we have to develop that monitors a mobile compressor. This compressor is towed behind a truck, or sometimes left at the ...
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How do I disconnect my OBD port from my lower dashboard?
I am going to be checking my OBD port on my 2004 Subaru WRX for loose pins. The problem is that access to my OBD is uncomfortable at best (it's below knee level and pointed down). Even if I can ...
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Bmw N52N Lambda probes madness
Owner of a BMW E60 523i LCI Automatic (N52N engine. aka N52k). 105000 Kms on the clock.
The error codes below after deletion, re-appear after 300~400 Kms.
It is theoritically impossible for 4 lambda ...
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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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Could you instruct a car thru the OBD port to open the trunk even if the car was turned off?
Could you instruct a car thru the OBD port to open the trunk even if the car was turned off? Can you turn the accessories on from the port then open the trunk?
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1995 GM OBD transitional 1.5 scan tool [closed]
I have had a 1995 Pontiac SSEi for 2 years without a code reader but now want to buy one. From the previous discussions I have read, there seems to be no available and affordable scan tool.
Has anyone ...
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Catalyst Temperature
Please refer to Catalyst Temperature PIDs (mode 01 pids 3C, 3D, 3E, 3F) for the following questions - https://en.wikipedia.org/wiki/OBD-II_PIDs#Mode_01
Q1. Is there a thumb rule that the catalyst ...
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What is the difference between Toyota GTS and TIS software?
I've found two types of Toyota OEM software available.
One is the GTS ( Global Tech Stream ) software which is freely available from Toyota's EU site.
The other is the Toyota TIS ( Technical ...
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What does the OBD error code P0100 mean?
What does the OBD error code P0100 mean?
I have an engine misfire with the check engine light on in my Nissan N16 Supper Saloon -1300cc - 2000 model year. The engine started to produce less power.
An ...
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How does OBD2 work with CAN?
I understand how CAN works (I think). Good info here if you would like to see: Difference between OBDII and CAN
So very briefly, there are multiple modules and each module posts interesting data on ...
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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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What do all these codes mean? 125331324255
My 1994 Jeep Grand Cherokee limited was running great, as always, but then a few day ago it didn't want to idle some times and without a shudder or misfire etc. the RPM would drop down to zero and die....
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Does OBD2 Hud Display use battery if only the cable is connected but not the device itself?
I have an OBD2 hud display. It consists of the obd2 cable, and the device itself. Cable can disconnect from the device.
If I leave the cable plugged in, but the device is disconnected from it, does it ...
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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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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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When connecting diagnostic PC to OBD port - What is the most detailed output file?
When the garage connecting the "official" manufacturer software to the OBD port in the car - What is the most detailed file that can be retrieved, containing all the raw data information?
Thanks,
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Toyota Avensis Verso 2002 (sold in Italy) CLM20L - which OBD version compatible?
I seem to have problems with nailing down the interface version of the OBD socket in my car.
Is it OBD, OBD2 or EOBD compatible? I know the differences between them in theory, but there is no solid ...
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Duplicate OBD code - or reading it wrong?
'94 Grand Cherokee 5.2L, TBI. Has OBD, not OBD-II. The Check Engine Light came on after 10-15 mins running.
Checked error codes using the ignition key method, wondering if I'm reading the flashes ...
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What is the difference between OBD1 and OBD2?
In my car (BMW E46 323I 1998) I have both connectors, that is, the 20-pin OBD1 and the OBD2, what is the difference between the two, I am referring rather to the functionality in my car, that is .
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Incomplete Monitors
I changed my Hyundai 2000 Accent battery and My CAT and EVAP monitors will not complete. I have tried a generic drive cycle and monitors will not complete. Any suggestions.
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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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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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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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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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Konnwei kw30 diagnostic equipment
Just got a konnwei kw830 diagnostic tool I plug it into my car which I know has a fault as I have checked on another system and that comes up with fault key 1 which means my car key has lost its ...