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).
9
votes
3answers
38k views
What iPhone/iPad app works best with ELM327 Bluetooth OBD-II reader?
I've found a number of apps for the iPhone/iPad that connect to ODB-II readers via WiFi, but unfortunately that means that it disables 3G and all the benefits of having a 3G device built into my dash.
...
8
votes
1answer
275 views
What are good features to look for in an ODB-II reader
I recently took my car in for the engine light. It turned out to be a minor problem (crack in gas cap let water in). It would be nice to have a low-cost ODB-II reader to be able to find out for ...
8
votes
1answer
292 views
How do I find the correct pins in a CAN-BUS connector?
This question might be too technical for this forum, but I'll give it a go. I have a 2012 BMW R1200R motorcycle with CAN-BUS. I'd like to make an Arduino interface to the connector on the bike, but I ...
7
votes
3answers
389 views
What to know before buying and OBD-II reader
I read the features to look for in an OBD-II reader, but I am curious if getting one is the right move. I'm just planning to get a cheap one, which is proving to be interesting shopping local. What I ...
5
votes
4answers
513 views
shop can't connect to onboard diagnostic system?
I've recently moved to California and am trying to get my car registered; they require a smog check (which is possibly actually more of an inspection than the name implies?). I went by a very basic ...
4
votes
2answers
465 views
How to view error codes on a speedometer with no OBD reader?
I have a 2000 Dodge Neon and don't have a real OBD reader yet. The other day I started to turn my car on and, before I got to the ignition the speedometer came on with a "p" and a "1684" (the check ...
4
votes
4answers
406 views
Are there any OBD II converters on the market?
I know there are tons of readers and software on the market, but what I really need is something to convert signals of my1970s sensors (fuel level, speed, coolant temp, etc) to OBD compliant signals. ...
3
votes
3answers
395 views
What should I do about PS0128 “Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)” error code?
I have a Mazda 6 and recently purchased the OBD 2 module and saw the check engine light with the PS0128 Error Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature).
I ...
3
votes
5answers
1k views
Is it worth getting an OBD2 scanning tool?
I have a Opel Corsa 1999 B type. It is giving me problems now. I have read a little bit about OBD2 scanning tools. But don't know if one could help me, or that I am maybe hoping for too much.
I ...
3
votes
3answers
680 views
OBD2 to bluetooth adaptor for 2001 Renault?
I have a 2001 Renault Clio 2 1.6 16V (French made) and I'm looking for a OBD2 to bluetooth adaptor to read computer's parameters. There are MANY available with all price ranges, but I'm not sure what ...
3
votes
2answers
2k views
OBD-II reader/scan tool that can also diagnose air bag light
Is there an OBD-II reader/scan tool that can also diagnose air bag warning light?
My 2004 Honda Element EX has a red air bag warning light that recently has turned on. The nearest Honda dealer wants ...
2
votes
3answers
350 views
How can I check if my 1995 Lancer CC GI has OBD-II
As my title say I want to know if my current car that I just purchased has an ODB-II port.
I have looked under the steering wheel and I can see what I think to be a OBD-II connector, but am unsure. ...
2
votes
1answer
167 views
How to interface with obd ii elm327?
Do I have to buy this in order to get all the PIDs and the full instruction set for communicating with the car's obd ii interface via an ELM327? I tried looking for some kind of api for the ELM327 ...
2
votes
1answer
357 views
Can I easily replace the Throttle Position Sensor on a 1999 Maxima?
My '99 Maxima's Check Engine light came on recently. I whipped out my OBD-II reader, and pulled off two codes.
P0325 (Knock Sensor)
and
P1705 (TPS)
Reading online it appears the knock sensor ...
2
votes
2answers
600 views
Catalytic converter readiness monitor never sets
I Reset the computer in my 1998 Chevy Astro, but even after driving around for a few days and putting it through the GM drive cycle, the OBDII reader is saying that the CAT monitor is not ready. I ...
2
votes
1answer
264 views
Faulty TCC solenoid or bad computer?
Make: Pontiac
Model: Sunfire
Year: 2001
Engine: 2.2 L
Trans: Automatic
Hello to every one, bought my first car and it is fine except for this little annoying problem. After driving it for a ...
1
vote
3answers
26k views
What is the pin or keycode for ELM327 bluetooth OBDII adapter?
The infamous ELM327 OBDII device came without any paper, just a crappy CD with no document related to the device (only some software and drivers thrown on the CD almost randomly).
I tried the ...
1
vote
1answer
66 views
Is there a smog abatement program for repairs greater than a certain amount in california?
I just bought a used car, and I'm going to get it smogged soon. Apparently (this is what the mechanic said), I can't get it smogged until 2 "checks" turn on. I think this means that the check engine ...
1
vote
1answer
615 views
1998 Ford Contour P0171 P0174
I have a 1998 Ford Contour that has a check engine light. I checked the codes, and found:
P0171 System Too Lean (Bank 1)
P0174 System Too Lean (Bank 2)
P0401 Insufficient EGR Flow
P1131 Lack of ...
1
vote
1answer
177 views
OBD2 protocol in trucks
How can I check if these trucks are OBD2 compatibile?
Trucks:
Mercedes Atego, type 818 [Daimler 970.21]
Man, type 8.113
If they are compatible with this protocol can you tell me where can I find ...
1
vote
1answer
282 views
CAN-BUS in a SEAT cordoba 99'
Does anyone know if SEAT cordoba (99' model) has CAN-BUS interface?
Where can one find this kind of info?
Thanks!
1
vote
1answer
368 views
OBD/OBD2 port on a 1993 mitsubishi triton MJ
Does anyone know if there is an ODB2 diagnostics port on a 1993 Mitsubishi Triton MJ 4x4 Ute?
1
vote
0answers
287 views
Mercedes Atego OBD2 live data codes
I have tried to connect an OBD2 ELM327 adapter in Mercedes Atego.
Somehow I managed to get it in that OBD2 connector. I can see that my adapter is receiving electricity. These are the PID's that I ...
1
vote
0answers
375 views
What is the OBD-II drive cycle for a 2003 Toyota Corolla?
This site includes a post with the specific drive cycle that resets the OBD-II monitors on several 2000-2002 Toyota vehicles. What does the drive cycle look like for a 2003 Toyota Corolla?
0
votes
1answer
213 views
Torque App Mileage reliability?
I am using an OBD-II sensor and the Andriod Torque app to look at my fuel economy and see that it shows a whopping 37 MPG for my Mazda 6, 2005 (2.3 Automatic). This seems fishy as some random googling ...
0
votes
1answer
58 views
My ELM327 OBD-II adapter is not responding anymore to its original bluetooth PIN (1234). Is it possible to recover access to it?
I recently bought an ELM327 adapter from China and was very satisfied with it. It was working fine with Torque and other OBDII apps for Android, and I could always pair with it using 1234 as the ...
