2004 C5 corvette PCM pinouts
Drifting
Joined: Nov 2017
Posts: 1,392
Likes: 303
According to this thread...https://www.corvetteforum.com/forums...onversion.html
...all you need to do is move one wire from pin 52 (on the P01) to pin 75 (on the P59).
You will need to disable some fault codes related to O2 sensors. Or with some extra work you can run your O2 sensor grounds through the new PCM, and it will monitor their current consumption, but it's not clear that's worth the trouble.
And either way you'll need to get the PCM and BCM re-acquainted with each other, there's a post here that covers that:
https://www.corvetteforum.com/forums...m-tcs-etc.html
...all you need to do is move one wire from pin 52 (on the P01) to pin 75 (on the P59).
You will need to disable some fault codes related to O2 sensors. Or with some extra work you can run your O2 sensor grounds through the new PCM, and it will monitor their current consumption, but it's not clear that's worth the trouble.
And either way you'll need to get the PCM and BCM re-acquainted with each other, there's a post here that covers that:
https://www.corvetteforum.com/forums...m-tcs-etc.html
Racer
Joined: Feb 2014
Posts: 258
Likes: 45
From: Finland
Here is 2004 Corvette P59 pinout. I add also 2002 if you want compare.
https://1drv.ms/u/s!AiTI9VLrQU6hgXLL...frxst?e=O5RTRr
https://1drv.ms/u/s!AiTI9VLrQU6hgXLL...frxst?e=O5RTRr
Thread Starter
Instructor
Joined: Oct 2006
Posts: 107
Likes: 0
From: San Leandro Cali
According to this thread...https://www.corvetteforum.com/forums...onversion.html
...all you need to do is move one wire from pin 52 (on the P01) to pin 75 (on the P59).
You will need to disable some fault codes related to O2 sensors. Or with some extra work you can run your O2 sensor grounds through the new PCM, and it will monitor their current consumption, but it's not clear that's worth the trouble.
And either way you'll need to get the PCM and BCM re-acquainted with each other, there's a post here that covers that:
https://www.corvetteforum.com/forums...m-tcs-etc.html
...all you need to do is move one wire from pin 52 (on the P01) to pin 75 (on the P59).
You will need to disable some fault codes related to O2 sensors. Or with some extra work you can run your O2 sensor grounds through the new PCM, and it will monitor their current consumption, but it's not clear that's worth the trouble.
And either way you'll need to get the PCM and BCM re-acquainted with each other, there's a post here that covers that:
https://www.corvetteforum.com/forums...m-tcs-etc.html
Thank you. I will check it out.
Thread Starter
Instructor
Joined: Oct 2006
Posts: 107
Likes: 0
From: San Leandro Cali
Here is 2004 Corvette P59 pinout. I add also 2002 if you want compare.
https://1drv.ms/u/s!AiTI9VLrQU6hgXLL...frxst?e=O5RTRr
https://1drv.ms/u/s!AiTI9VLrQU6hgXLL...frxst?e=O5RTRr
Thank you very much.
