LTSupportAutomotive
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mickeyl
How to read DTC codes ?
Hi, i'm new to this field and thanks for amazing library. My car now can connect to your demo app, but i don't know how to read DTC code from my car ?
Can someone give me some example pls
If you already have a connection to your car, you can get the DTCs by sending the appropriate PIDs and parsing the response.
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LTOBD2PID_PERMANENT_DTC_0A -
LTOBD2PID_PENDING_DTC_07 -
LTOBD2PID_STORED_DTC_03
The exact command depends on the kind of DTC you want to read, as there may be some only relevant to a freeze frame, or some are stored permanently due to repeated errors.
Either way, if there are DTC reported, the response will have an array troubleCodes which contains LTOBD2DTC. These have a code and an explanation.
If the explanation is empty, it's probably a manufacturer-defined code: These are usually explained in your car maker's service/workshop manual.
Yes, sending LTOBD2PID_CLEAR_STORED_DTC_04 will reset the MIL and erase the stored DTCs.
Hello @mickeyl , @thdankert
I am getting incorrect DTC in my code using this Library.
From Other App i am getting "P0441","P0442","P0446" and in my app using LTSupportAutomotive i am getting "C0104" "C0204"
Please help it's urgent.
@mukulpandey57 Is your issue related to this one? The OP asked for general information on using this library to read DTCs - he probably moved on, as this issue has not seen any activity in over a year...
Regarding your question: which DTCs does the other app read, and which ones did you read using this library? There are 3 different PIDs for reading them:
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LTOBD2PID_PERMANENT_DTC_0A -
LTOBD2PID_PENDING_DTC_07 -
LTOBD2PID_STORED_DTC_03
@thdankert , Thanks for your quick response. I was using all three PID ($03, $07,$0A) and only getting the C Codes and other wired scanner and apps getting the P Codes. Please assist.
Seems like something related to this https://github.com/mickeyl/LTSupportAutomotive/issues/31
I'm afraid I am unable to assist you there. I don't know anything about your car, the code you wrote, and how the other applications read DTCs.
How to clear the DTC code ? "LTOBD2PID_CLEAR_STORED_DTC_04" any more explanation to this?
