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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Can I send a PID using CANBus fornat through an OBD2 bluetooth adapter?
I am interested in knowing if, by sending certain AT commands to the OBD2 Bluettoth adapter (for example the generic ELM 327 Mini) I can "program" this adapter and thus be able to send the ...
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Why different Bluetooth OBD2 v 1.5 adapters (All made in China, they don't have a brand or model) give different responses to the same commands?
After initializing them (ATZ, ATSP0; ATE0 etc etc ) , I guess correctly, the following happens:
If, for instance, we send the command 03 some adapters respond
4300... which is correct.
While other ...
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Confusing DTC terminology?
I've noticed that many trouble codes use similar wording for the same problem and can't really distinguish between them, for instance.
P0105 Manifold Abs.Pressure or Bar.Pressure Voltage supply
P0106 ...
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Is there any source of information about car models and brands in which it is possible to know the fuel level through the OBDII PID 2F?
Although OBDII has been mandatory since 1996 for North American vehicles and manufacturers must respect generic fault codes and that OBDII defines a series of PID commands to know the status of many ...
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Trouble shooting abs/esp light on Peugeot 308
I have just replaced the rear discs on a Peugeot 308 hatchback, 2010 model. After this, the abs and esp fault warnings were displayed on the console, and abs/esp lights came on. Plugging in an OBD ...
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Test is inhibited by other DTC?
I'm going through the process of troubleshooting an abs light and DTC code C1326 on a Peugeot 308 1.6l 2010 model. The DTC message I am getting from the scanner reads
C1326 - Status: Test is inhibited ...
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Mercedes S205 unknown fault code: 562CFF6C
My car machine readed a fault codes with Bosch system from Mercedes W205 (2014) C180 car and they have found an unknown fault code in ABS/ESP system:
fault code is: 562CFF2C
After deletion of the ...
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obd connection issue
I just bought a PA state 03 f250 from a auction. I took it to the garage for inspection and emissions. (I'm told state vehicles do not require emissions.) When they hooked it up for emissions test, it ...
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How strict is a "drive cycle"?
This answer lists the steps in a GM "drive cycle", for purpose of running certain diagnostic tests, and (?) re-calibrating certain parameters. (In my case, after replacing a heated O2 ...
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How to find the typical ranges for sensor values?
I've recently got an OBD scanner and have found some of the live data streams to be very useful, I was monitoring the timing advance value and observed it fluctuating at idle by 10 deg or so the range ...
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OBD fault codes vs. pending fault codes
The OBD app that I use, AndrOBD, has three different options to retrieve OBD fault codes:
OBD fault codes
OBD fault codes (pending)
OBD fault codes (permanent)
The third option, as I understand it, ...
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Golf 7 key stolen, which fuse to remove to disable car key reprogramming?
My Golf 7 key was stolen.
I have reprogrammed my keys to disable the stolen one.
The thief could still reprogram the stolen key as he can open the door using the hidden emergency door lock.
Which fuse ...
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2016 Traverse-OBDII readiness check
My air conditioner does not come on because I have a pin hole in the rear line. Will this affect performing a cycle to get the sensors to read
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Flow Control for Multiline Responses for Custom 15765-4 CAN messages over ELM327
I am using an ELM327 adapter to talk to the OBD2 port on my car over ISO 15765-4 11b/500k. I want to query for non-standard messages outside of standard OBD2 PIDs, (which I have separately logged from ...
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Check beforehand if will pass emissions test?
How can I check, using an Bluetooth ELM327 OBD-II dongle, whether my car will pass an emissions test?
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Obd2 reader code port
What fuse controls the obd2 code reader port on my 2012 Honda civic ex coupe 2012 there is no power when plugging in my code reader
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Locating OBDI2 port on used vehicle ( Mitsubishi L200 year: 1998 )
Vehicle
model: L200
Make: Mitsubishi
year: 1998 ( engine ~2004 from swap )
I am located in the carribean, finding solid used vehicles is a challenge actually that an understatement. Vehicles are ...
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Do fault codes get recorded with a date stamp into a log with a history of DTCs?
If it's relevant, I'm asking this question about a 2006 Lexus GS300. A previous post asked if a fault code leaves a time stamp, and the answer was "no." I want to know if fault codes have a ...
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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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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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Vehicle Theft Detected
Looking at engine codes on 2012 Mazda 3, there is something odd:
P1260:00-22 theft Detected, Vehicle Immobilized
P0138:00-28 O2 (oxygen Sensor) circuit high voltage (bank1, sensor 2)
Vehicle starts ...
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Will OBD2 Hud Head Up Display drain car battery if left plugged when car is off?
I am buying a HUD Head Up Display. It goes in Sleep Mode when ignition is off (screen turns off). I asked the manufacturer, they said it uses 0.3mAh when in Sleep Mode (400mA while in use).
Is this ...
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Do OBD2 Hud Head Up Displays use battery when engine is off?
I am buying an OBD2 Head Up Display. It has a screen where it shows readings etc. Manufacturer claims the item turns off when the engine is off too, and this is true from the videos I have watched. It ...
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P1105 - Differential Pressure Sensor Intake Manifold Pressure Too High (Bank 1) Mini Cooper R56
I am having exact issue as mentioned in this forum Trying to see if this can be answered in SE.
I have the following: Mini One 2007 R56 with 130,000 miles on the
clock.
I been experiencing rough idle ...
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Mini Cooper R56 Trouble Starting with (P1105, P111A) codes
My R56 Mini had trouble starting (5-7) cranks to start it and lots of misfires, bad idling etc. I originally posted the problem here and tested for fuel pressure, it is nominal thought.
After ...
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Flashing overdrive light 2002 ford escape
2002 ford escape xlt-flashing overdrive light comes on after short period of driving. Comes on when approaching 50 mph? Or so...how do I fix it?
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Help to diagnose A/C failure? Ford Tourneo with Forscan OBD
The A/C in my car doesn't work, before any repair, I try to understand which part in the A/C system is the problem.
Here the symptoms:
Everything looks fine: no error message, the interior ...
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Can I turn on the A/C Unit in a car using the OBD-II Port while it is off?
I want to know if it is possible to turn on the A/C unit using the OBD-II port in a car even if the engine/car is off. Is the OBD-II port capable of doing something like this, or is it only used to ...
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Where is the OBD2 port location in 2022 Genesis G70?
Recently got myself a 2022 Genesis G70 and the Metromile OBD2 device for insurance. But could not find OBD2 port location in the car. I have attached an image of all the places I have checked.
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Does OBD-II have any means for reporting current oil pressure?
I recently had the low oil pressure warning light come on in my car. After letting the engine cool down, the warning was gone and I was able to drive home (which was just a few km) with no issues. I ...
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2015 Subaru WRX Check Engine Light
The check engine light on my WRX just came on yesterday, along with a batch of other lights. I bought it new, follow the recommended maintenance schedule, and haven't had any other major issues.
...
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J1850 (V)PWM Physical Addressing (3-Byte-Header)
All OBD2 scanners I have used are solely using broadcast addressing when it comes to talking J1850 V(PWM). I wonder why this is so. If I understand the standard correctly, if 61 6A F1 (68 6A F1 for ...
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Are there online mechanics helping diagnose issues based on OBD2 logs?
My Toyota Kluger (Highlander in the US) has been plagued by recurrent P0171, P0174 (lean fuel mixture) trouble codes ever since I bought it 2nd hand. Apart from the dashboard light, I've seen no other ...
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2007 Suzuki Reno
My OBD2 port has been damaged and I bought a replacement but I can't find the pin out for it. I have 8 wires that I need to know exactly where they belong into the connector. Please help. The wire ...
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Do electric cars have OBDII interfaces?
For passenger cars in the US, the OBD2 interface has been mandated for many years. The interface allows you to query a lot of car data from the computer using a scanner tool. The OBD2 system also sets ...
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What OBD tool I can use to retard/advance ignition timing? I like to experiment on GM Suburban to burn hydrogen instead of gas
I know Hydrogen burns much faster, so in order to use this fuel in a modern car, the ignition timing tables must be modified. Is it possible to modify the timing so the ignition happens after tdc or ...
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Determine which features of a car are software locked
It's an open secret that a lot of cars these days are built with all of the hardware that they need to perform the operations of "extras" whether or not you pay for them. They're then ...
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Are all OBD2 adapters born the same, or are there differences in what they can do?
Lately I've been getting interested in connecting to my car's computer and seeing some diagnostics information. So I need to get an OBD2 adapter (Bluetooth probably, to pair with my phone). But I've ...
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Oxygen Sensor Diagnosis
I recently had the engine MIL go on on my Mercedes C-Class S205 while driving so I purchased an OBDII bluetooth scanner to figure out what is going on. The code I got was:
P2243(92) - Heated oxygen ...
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OBD code P0433 problem
I have just had 195000km service on my Mitsubishi Triton 3.5 Ltd V6. They replaced my air filter and I now have a check engine light. Code P0433 on OBD scanner... replace O2 sensor, exhaust leak. No ...
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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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Programming remote key Mitsubishi Colt 2007 1.3
I tried programming the remote key, but I can't get car in programming mode as is described in most YT video's by connecting pins 1 and 4 in OBD and pressing 6 times the emergency button. This should ...
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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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Battery/Memory saver dilemma
A memory saver for your car battery is a connector with a small battery. It has just enough voltage and current to keep all of your car's computer memory alive while you change the main battery. The ...
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Can a water-damaged OBD2 scanner damage a vehicle?
I have a harbor freight OBD2 scanner which was left out in the rain. I have shaken it out and dried it thoroughly. Assuming it still works at all, is there any way I could damage my car by using it to ...
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I need to add an OBD-II based accessory to a OBD-port-less and ECU-less car
My guess is the accessory would work fine if only provided power (no need for it to receive diagnostics info, just to turn on to perform its function).
Would it be possible to connect pins 16 and 4 to ...
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mechanic can't reproduce trouble when car is at shop... need to record OBD data when problem occurs while driving
I brought my car in for servicing, but the mechanic can't reproduce the problem. I want to log OBD data as the problem occurs. I would then provide this captured data with the car when it goes back ...
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P0638 code on 2 different generic scanners but service center says it's the readers that are faulty and the car is fine?
I recently purchased a 2nd hand Kia Rio LX 2018 with 24k miles on the clock. The car drives well, the check-engine light is off, I had a pre-purchase inspection done on it (Lemon Squad) and their ...
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Can issue with P0736 error code produce EM Interference?
I have had an issue with a car where phone GPS doesn't work inside the vehicle. I have just connected my OBD2 diagnostics tool and ran it. I got back 3 issues:
P0736 ME - Motor electronics: ...
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KWP OBD2 ECU Target Address
When communicating with an ECU via the OBD2 port using the CAN protocol, we have a well known address $7DF. Irrespective of the make and model of the car this address can be used to read MODE 1 ...
