I am aslo see that code p0605 has popped up after eraseing.
Codes will not erase.
Jun 22, 2012 at 5:12 PM
J.STIEG
MEMBER
361 POSTS
Concerning limp mode I was thinking mabey speed sensor or TPS at first, But in the past on other vehicles I would disconnect battery and reset and would be limp mode free for a few miles, does not work in this case.
Does code p0605 mean TCM is faulty or could something else set the code p0605.
Jun 22, 2012 at 5:35 PM
SATURNTECH9
✓ASE Certified Mechanic
30,869 POSTS
I posted the trouble tree for code P0605 let me know what you find.
most of the time I get code p0605 without putting in gear or starting even after clearing codes.
So far I have not had the MIL light off can't get the codes to erase.
Looks like I will be replacing TCM.
If there was a problem with sensor or something seems like it would set a DTC
It not like the MIL is triggered during the driving range.
Code p0605 says "PCM ROM error", is that refering to the engine computer or no?
Jun 23, 2012 at 6:01 AM
SATURNTECH9
✓ASE Certified Mechanic
30,869 POSTS
The P0605 refers to a internal failure inside the tcm so it has to be replaced.
Jun 23, 2012 at 6:15 AM
J.STIEG
MEMBER
361 POSTS
Replaced the TCM and the transmission shifts fine now.
Jun 26, 2012 at 9:28 PM
SATURNTECH9
✓ASE Certified Mechanic
30,869 POSTS
Glad to hear replacing the tcm fixed the shifting issues also.
Jun 26, 2012 at 11:14 PM
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