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Has anyone ever figured this one out? The P1000 gray code? I plug in my reader and use my torque pro and I get two P1000 codes but no light on my dash. Now today I did get a code for bank 1 sensor 1 o2 code ( P2196 ) and I still have two P1000... it says " testing incomplete " is there a fix fro this or will I just have to keep dealing with it? It has done this from the first day I used the reader years ago.
Thank you in advanced for any information. I appreciate it.
@Eagle you are probably clearing codes too frequently - it is so easy to do with Torque Pro. BUT that is actually a disadvantage. I have come to recommend to leave the CEL on (hell we know why it is by reading codes anyway), and the PCM will clear it after a couple of drive cycles once the fault is corrected. Correcting the fault should be the focus. It's just reverse logic. Instead of trying to ix a problem, clearing codes and see if the code comes back in a couple of drive cycles - Just try to fix the problem and see if the code goes away in a couple of drive cycles.
Your P1000 codes are the result of codes cleared and the PCM has NOT BEEN ABLE to complete all it's internal built in continuous diagnostic MONITOR ROUTINES ---- YET. Nothing more. P1000 is thus reasonably NOT cleared by clearing codes.
If _ALL_ your MONITORS are not completing, you can figure out WHICH ONE is the 'culprit' by downloading the 'CSV' file with OBDII PIDs for installing in Torque Pro to set up this screen.
Your P2196 code is a problem and needs to be _FIXED_. It may well be the source of all the others. It (for sure) will prevent the Catalyst Monitor from completing. Use Torque Pro to graph all four O2 sensors - and Fuel Trims and get Mode 06 test report ("Test Reports" on Torque) with engine and CATS warmed up after light cruise. Could be failed O2 heater, electrical problems, or vacuum leak, but you are headed for P0420 code an possibly damaged CAT.
As everyone said, P1000 is a code that comes up when the computer hasn't completed its full diagnostic after being cleared. Its a nothing code and will go away on its own once the cycle is completed. Also just for your information, not all codes will throw turn the light on.
unrelated to the good answers, but "gray code" is not commonly understood by younger guys, even computer guys. As values change from one value to he next (up or down), bits change. Many of us understand binary counting,
000=0
001=1
010=2
011=3
100=4
101=5
110=6
111=7
the change between
0 and 7 has all 3 bits change
1 and 2 has 2 change
3 and 4 has all 3
5 and 6 has 2
A "gray" code cannot be easily decoded by eye, but has computer advantages ... only one bit changes for each count change. The historical reasons are covered pretty well by wikipedia, https://en.wikipedia.org/wiki/Gray_code
unrelated to the good answers, but "gray code" is not commonly understood by younger guys, even computer guys. As values change from one value to he next (up or down), bits change. Many of us understand binary counting,
000=0
001=1
010=2
011=3
100=4
101=5
110=6
111=7
the change between
0 and 7 has all 3 bits change
1 and 2 has 2 change
3 and 4 has all 3
5 and 6 has 2
A "gray" code cannot be easily decoded by eye, but has computer advantages ... only one bit changes for each count change. The historical reasons are covered pretty well by wikipedia, https://en.wikipedia.org/wiki/Gray_code
P1000 " gray code "
I appreciate your response.
