MP3Car.com - View Single Post - Do any of the OBDII readers read the OBD subcodes

muldrick · 05-10-2008, 08:10 PM

That's weird. Not sure of what you mean by "sub codes". The way I see it: Our generic readers will read all OBD related codes and additionally "manufacturer specific" codes.
Most "P0xxx" codes are OBDII generic, and our scan tools will read and show what they mean, for example: P0171 Fuel Mixture Lean.
However, our scan tools will also read "P1xxx" (note the "1"), but our scan tool will not explain what they mean, or will state "manufacturer specific code".
Regardless, "our" scan tools should read ALL codes in a PCM (ECU).
I know Toyota's...there is no such thing as a "sub system". Why your scan would not read the other codes...don't know.
What codes are (where) they?

05-10-2008, 08:10 PM	#3
muldrick FLAC muldrick's CarPC Specs Join Date: Jun 2004 Location: South-Central PA Vehicle: 2004 Hyundai Accent Posts: 1,209 My Photos: ()	That's weird. Not sure of what you mean by "sub codes". The way I see it: Our generic readers will read all OBD related codes and additionally "manufacturer specific" codes. Most "P0xxx" codes are OBDII generic, and our scan tools will read and show what they mean, for example: P0171 Fuel Mixture Lean. However, our scan tools will also read "P1xxx" (note the "1"), but our scan tool will not explain what they mean, or will state "manufacturer specific code". Regardless, "our" scan tools should read ALL codes in a PCM (ECU). I know Toyota's...there is no such thing as a "sub system". Why your scan would not read the other codes...don't know. What codes are (where) they? __________________ Now faith is being sure of what we hope for and certain of what we do not see.