Code 12 and code 55 need help!!!
#1
Code 12 and code 55 need help!!!
So I left my lights on at work but my battery didn't die took a couple cranks and started right up I get on the highway and about 60 mph I'm at 3000rpm and it would not shift finally It shifted and I noticed my check engine light come on I pulled over at the gas station and cycled through it and got a code 12 and a code 55 I have no idea if that has anything to do with it not wanting to shift I checked all fluid levels they were fine my battery voltage was a little low any ideas guys? Oh and it's a 92 cherokee by the way
#2
Senior Member
Join Date: May 2013
Location: Vancouver
Posts: 541
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1998 and 1988
Model: Cherokee
Engine: 4.7
So I left my lights on at work but my battery didn't die took a couple cranks and started right up I get on the highway and about 60 mph I'm at 3000rpm and it would not shift finally It shifted and I noticed my check engine light come on I pulled over at the gas station and cycled through it and got a code 12 and a code 55 I have no idea if that has anything to do with it not wanting to shift I checked all fluid levels they were fine my battery voltage was a little low any ideas guys? Oh and it's a 92 cherokee by the way
#3
CF Veteran
Join Date: Apr 2012
Location: Wisconsin
Posts: 5,302
Likes: 0
Received 19 Likes
on
16 Posts
Model: Cherokee
Code 12 means the PCM lost power (low or dead battery), 55 is the end-of-message code, just marks the end of the sequence and means nothing.
Charge up the battery and see what happens. Electronically controlled transmission's get funky with low voltage.
Charge up the battery and see what happens. Electronically controlled transmission's get funky with low voltage.
#6
CF Veteran
Join Date: Mar 2010
Location: Broward County Fl.
Posts: 47,923
Likes: 0
Received 22 Likes
on
22 Posts
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
Alternators on todays vechicles are intended to keep battery charged not recharge it from a very low voltage point .Throw a battery charger on for a few hours then drive . And all codes you read are as stated above normal.
#7
CF Veteran
Thread
Thread Starter
Forum
Replies
Last Post
4WD4EVER
Modified XJ Cherokee Tech
28
07-28-2023 07:12 PM
sluger17
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
9
07-08-2023 07:08 AM
dennismo
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
1
04-15-2018 05:57 PM
tleed
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
3
10-04-2015 01:20 PM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)