How to Get diagnostic codes
Thread Starter
Racer
Joined: Oct 2006
Posts: 337
Likes: 0
How to Get diagnostic codes
I am wondering how I would be able to get the codes from my cars computer without paying 85 bucks to run a diagnostic. Is there an easier way to find out how to get the codes out my car?
Drifting
Joined: May 2004
Posts: 1,543
Likes: 1
From: Levittown NY
Instructor
Joined: Sep 2004
Posts: 146
Likes: 1
From: Rancho Mirage California
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Burning Brakes
Joined: Nov 2006
Posts: 1,102
Likes: 1
From: Portsmouth Virginia 396LT4 435RWHP/400RWTQ Best so far 11.26 @ 123mph
Tony,
MAD sells a nice diagnostic kit by Gordon Killebrew with various grounding plugs to check PCM, PKE, CCM, Etc. and an instruction book to help explain, troubleshoot, and clear basic fault codes. 94-96 Pn # 604-260 for 39.95.
Rick
MAD sells a nice diagnostic kit by Gordon Killebrew with various grounding plugs to check PCM, PKE, CCM, Etc. and an instruction book to help explain, troubleshoot, and clear basic fault codes. 94-96 Pn # 604-260 for 39.95.
Rick
Melting Slicks
Joined: Apr 2000
Posts: 2,408
Likes: 3
From: Bel Air Md
c12 means On-Board diagnostics operational No DTC's. H22 and H 67 are history codes. that means they are not present now but were some time ago. not sure what year you have this is froma book on my 92 withan LT1. Disconnect the battery for a while and that should clear the two H codes. Here is some help. http://www.c4guru.com/modules.php?name=electrical or here
http://www.corvettebuyers.com/c4vettes/codes.htm
http://www.corvettebuyers.com/c4vettes/codes.htm
Thread Starter
Racer
Joined: Oct 2006
Posts: 337
Likes: 0
c12 means On-Board diagnostics operational No DTC's. H22 and H 67 are history codes. that means they are not present now but were some time ago. not sure what year you have this is froma book on my 92 withan LT1. Disconnect the battery for a while and that should clear the two H codes. Here is some help. http://www.c4guru.com/modules.php?name=electrical or here
http://www.corvettebuyers.com/c4vettes/codes.htm
http://www.corvettebuyers.com/c4vettes/codes.htm
Melting Slicks
Joined: Apr 2000
Posts: 2,408
Likes: 3
From: Bel Air Md
Thank you very much I have a 95 Lt1 corvette auto. If im not correct please correct me the codes I found H22-TPS (signal voltage low) Throttle position sensor. And H67-Air conditioning Pressure Sensor circuit.Replace the air conditioning refrigerant pressure sensor. Please let me know if this is correct Thanks Tony
Burning Brakes
Joined: Nov 2006
Posts: 1,102
Likes: 1
From: Portsmouth Virginia 396LT4 435RWHP/400RWTQ Best so far 11.26 @ 123mph
Tony,
We would need to know which module you were in when you saw the code. It is either module 1, module 4, or module 9 as displayed on the odometer for each system tested. One module is CCM codes, one module is PCM codes and so on. These flash in order as you are looking at the odometer dash display. The same code number can show up for two different modules and obviously mean something different for each. I have the code book at home to tell you if you can check that.
Rick
We would need to know which module you were in when you saw the code. It is either module 1, module 4, or module 9 as displayed on the odometer for each system tested. One module is CCM codes, one module is PCM codes and so on. These flash in order as you are looking at the odometer dash display. The same code number can show up for two different modules and obviously mean something different for each. I have the code book at home to tell you if you can check that.
Rick
Thread Starter
Racer
Joined: Oct 2006
Posts: 337
Likes: 0
ok C12/1, H22/4, H67/9 Then A with no codes on top then 1.0 with no codes on top. Is that what you want? codes on top, and Module number on bottom, H22 is Pcm, and H67 is Abs/Asr module hows that.
Last edited by 95!Vette!; May 9, 2007 at 01:48 PM.
