public List <Tuple <DiagnosticTroubleCode, string> > RequestAllDtcStatuses(OBD2.Cables.Cable cable)
{
List <Tuple <DiagnosticTroubleCode, string> > statuses = new List <Tuple <DiagnosticTroubleCode, string> >();
string response = cable.Communicate(this, 5000);
string[] responses = ParameterIdentification.PrepareResponseString(response);
if (responses != null)
{
foreach (string individualResponse in responses)
{
byte[] responseBytes = ParameterIdentification.ParseStringValues(individualResponse);
if (responseBytes != null)
{
if (responseBytes.Length == 4)
{
if (responseBytes[0] - 0x40 == this.Mode)
{
string firstByte = responseBytes[1].ToString(Protocols.ToHexFormat);
string secondByte = responseBytes[2].ToString(Protocols.ToHexFormat);
// the code is still in elm327 encoded format, e.g. "4670" which would be DTC B0670
string elm327code = firstByte + secondByte;
DiagnosticTroubleCode code = new DiagnosticTroubleCode(elm327code, DiagnosticTroubleCode.CodeType.StatusCheck);
string codeStatusDescription = GetStatusDescription(responseBytes[3]);
statuses.Add(new Tuple <DiagnosticTroubleCode, string>(code, codeStatusDescription));
}
else
{
Diagnostics.DiagnosticLogger.Log("Invalid mode for mode 19 response line \"" + individualResponse + "\"");
}
}
else
{
Diagnostics.DiagnosticLogger.Log("Received a mode 19 response line that did not have 4 bytes. Received \"" + individualResponse + "\"");
}
}
else
{
Diagnostics.DiagnosticLogger.Log("ParseStringValues() returned null for response \"" + individualResponse ?? string.Empty + "\"");
}
}
}
else
{
Diagnostics.DiagnosticLogger.Log("PrepareResponseString() returned null for \"" + response ?? string.Empty + "\"");
}
return(statuses);
}
public string RequestVIN(OBD2.Cables.Cable cable)
{
string dataStr = cable.Communicate(this);
string[] dataLines = ParameterIdentification.PrepareResponseString(dataStr);
string vin = string.Empty;
try
{
if (dataLines != null && dataLines.Length > 0)
{
dataLines = prepMarkedLines(dataLines);
foreach (String line in dataLines)
{
byte[] dataBytes = ParameterIdentification.ParseStringValues(line);
if (dataBytes.Length >= 7)
{
byte receivedMode = (byte)(dataBytes[0] - 0x40);
if (receivedMode == this.Mode)
{
for (int i = 3; i < dataBytes.Length; i++)
{
if (dataBytes[i] != 0)
{
vin += Convert.ToChar(dataBytes[i]);
}
}
}
else
{
Diagnostics.DiagnosticLogger.Log("Cannot decode VIN, expected mode " + this.Mode + " and received " + receivedMode);
return(null);
}
}
else
{
Diagnostics.DiagnosticLogger.Log("Cannot decode VIN, expected at least 7 characters in line \"" + line + "\" and received " + dataBytes.Length);
return(null);
}
}
}
}
catch (Exception ex)
{
Diagnostics.DiagnosticLogger.Log("Could not decode VIN, exception occurred", ex);
}
return(vin);
}
public List <DiagnosticTroubleCode> RequestTroubleCodes(OBD2.Cables.Cable cable)
{
// TODO: set frame headers for other protocols
// set the frame header to the default PCM for the main engine codes
if (cable.Protocol == Protocols.Protocol.HighSpeedCAN11 ||
cable.Protocol == Protocols.Protocol.LowSpeedCAN11)
{
Protocols.Elm327.SetFrameHeader(Protocols.CAN.Headers.Default);
}
else if (cable.Protocol == Protocols.Protocol.VPW)
{
Protocols.Elm327.SetFrameHeader(Protocols.J1850.Headers.Default);
}
return(GetDtc(cable, this, CodeType));
}
