PT Cruiser turbo enters limp mode when hot

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1 week 5 days ago #202137 by Farrar
Vehicle:
2006 PT Cruiser turbo (8-series VIN)
TIPM replaced in 2016
PCM replaced in 2018
Reman trans (A604/41TE - 4 spd auto) installed 2017, all new sensors & solenoid pack
Battery less than 3 years old, has been tested last week and is good
Brand new ground straps installed last week, engine to transmission and transmission to battery negative

Situation:
No problems when started cold. When hot, will not start on first turn of key, have to try a few more times, "check engine" turns on, vehicle starts and I am in "limp mode" until the engine sits for at least five hours to get fully cold *AND* I clear the codes.

P0882 would seem to indicate low input voltage to TCM, but TCM is integrated in PCM and TCM relay is integrated into TIPM. How do I troubleshoot this?

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1 week 1 day ago #202175 by hondaguy453
Replied by hondaguy453 on topic PT Cruiser turbo enters limp mode when hot
You mentioned "codes". Are there more than just the P0882?

If it ain't broke, don't fix it
A1, A6, and A8 ASE Certified

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1 week 9 minutes ago #202201 by rahuljones

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5 days 13 hours ago #202228 by Farrar
Replied by Farrar on topic PT Cruiser turbo enters limp mode when hot

hondaguy453 wrote: You mentioned "codes". Are there more than just the P0882?


Just P0700, which is the MIL light turn-on request.

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5 days 13 hours ago #202229 by Farrar
Replied by Farrar on topic PT Cruiser turbo enters limp mode when hot

rahuljones wrote: Just check if this link helps: www.ptcruiserlinks.com/forum/tech-perfor...ow-input-signal.html


Thanks, I will check that harness by the battery tray and see what I can find.

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5 days 10 hours ago #202230 by Farrar
Replied by Farrar on topic PT Cruiser turbo enters limp mode when hot
I'd like to check the relay, but it's inside the TIPM and I don't know how to access it. Once I remove the cover of the TIPM, I can see the fuse tray, which is held on with a few Torx screws. I can remove the screws, but the tray doesn't move. It is also not accessible from underneath.

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5 hours 7 minutes ago #202258 by hondaguy453
Replied by hondaguy453 on topic PT Cruiser turbo enters limp mode when hot
I would start checking power and ground coming from the relay going to the PCM. You'll probably have to make the system fault before doing so, but I'd check it while the vehicle is operating normally to get some numbers to compare to. You'll need a wiring diagram of course, or you can look at some vid's on youtube about this specific problem. I found one and it's what I'm using right now to give you suggestions.

If it ain't broke, don't fix it
A1, A6, and A8 ASE Certified

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