I have a 2006 2.4L P.T. Cruiser (conv) that has 44700 miles. I have a check engine light that points to the problem being the transmission control power unit undervolt.

Brian Plummer
0

Asked by Brian Jan 23, 2014 at 07:32 AM about the 2006 Chrysler PT Cruiser GT Convertible

Question type: Maintenance & Repair

For 2 months I did not drive my car. I
started the car every week for the
battery charge. 2-3 weeks before I
had finally had the $ to go get it
checked at Chrysler I went  to start
the car and the battery was dead.
After being jumped I saw they the
check light was off. I drive for over 20
miles and nothing. About 3 weeks
later it came back. I disconnected
the ā˛•terminal for a few hours and
when I reattached it the check light
was again off. The next time it was
abut two weeks and now about 5
days. The transmission runs great,
sounds great and feels great.
Besides spending a boat load of
cash is there any other way to fix this
for good?  Why is it happening and
why does draining the power work?  
Please help. I am planning a long trip
in the spring and I don't want the
specter of a check light that could
happen at any time. Is the module
expensive to replace??

1 Answer

Michael Mierzejewski
2,380

Disconnecting the battery is erasing the memory in the cars computer. That's why the CEL is off after you do that. It doesn't come one right away because certain malfunctions need to be present for a certain period of time before the computer turns on the light. As to why the code for the TCM is there, I cant say. I haven't encountered that one yet.

2 out of 2 people think this is helpful.

Your Answer

Add photo

Related Questions

Search Chrysler PT Cruiser Questions

Chrysler PT Cruiser Experts

#1 Tom Demyan
Tom Demyan
Reputation 750
#2 Steven Hood
Steven Hood
Reputation 500
#3 thefrozendog
thefrozendog
Reputation 470
View All

Related Models For Sale

Used Chevrolet HHR"
166 Great Deals out of 4,286 listings starting at $2,795
Used Volkswagen Beetle"
217 Great Deals out of 9,962 listings starting at $1,795
Used Chrysler Sebring"
124 Great Deals out of 4,158 listings starting at $1,800
Used MINI Cooper"
286 Great Deals out of 14,465 listings starting at $3,900
Used Toyota Camry"
1,603 Great Deals out of 80,195 listings starting at $1,295
Used Ford Mustang"
525 Great Deals out of 35,144 listings starting at $1,600
Used Nissan Altima"
1,389 Great Deals out of 85,027 listings starting at $1,495
Used Ford Focus"
927 Great Deals out of 55,709 listings starting at $1,495
Used Jeep Wrangler"
925 Great Deals out of 52,964 listings starting at $3,495
Used Honda Civic"
1,015 Great Deals out of 63,942 listings starting at $1,400
Used Pontiac Vibe"
46 Great Deals out of 1,295 listings starting at $1,988
Used Dodge Caliber"
108 Great Deals out of 3,239 listings starting at $2,150
Used Toyota Corolla"
1,304 Great Deals out of 52,718 listings starting at $1,988
Used Honda Accord"
1,186 Great Deals out of 61,913 listings starting at $900

Used Cars For Sale