Last post on Sep 27, 2007 at 6:48 PM
You are in the Jeep Cherokee and Jeep Grand Cherokee
What is this discussion about?
Jeep Grand Cherokee, SUV
#2 of 21 Re: 96 G.C. 4.0L [jeeps2]
Sep 06, 2007 (6:26 pm)
prob bad batt or conection try to clean posts and cable clamps if batt older than 3 years i would put in new batt
#3 of 21 Re: 96 G.C. 4.0L [tuggajb]
Sep 07, 2007 (2:00 am)
Battery is less then 6mos. old. I tested it as well as the alternator and both are good. I checked them both when the 12 code came up. Still don't know what the 72 code is all about. Thanks for the reply.
#4 of 21 Re: 96 G.C. 4.0L [jeeps2]
Sep 07, 2007 (2:34 am)
just a thought, could this be my cat. converter? Had it replaced about 2 years ago.
#6 of 21 Re: 96 G.C. 4.0L [tidester]
Sep 07, 2007 (5:10 am)
Thanks tidester. My jeep is running like new. Never a problem with the performance. The cat. was just a thought. No problems with power. Really makes me feel dumb.
#7 of 21 96 jgc codes
Sep 11, 2007 (11:16 am)
i did the key ignition thing...(on/off 3x's) anyway, my code was 12,72,55. i used to have a list of all the codes. i can't seem to find the code list that i need. i can find the p1234 code list every where. but not mine. any suggestions?...help.
#8 of 21 Re: 96 jgc codes [efuller77]
Sep 11, 2007 (11:58 am)
efuller77, The 55 is easy, that means that the computer is done reading the codes. 12 means that the battery was disconnected and I'm leaning towards the cat. converter for the 72 code. I've been told that it means that it is not working to minimum standards.Hope this helps.
#9 of 21 Re: 96 jgc codes [efuller77]
Sep 11, 2007 (12:40 pm)
Code 12- Battery power to PCM was disconnected.
Code 72- Catalyst efficiency below required level.
Code 55- Completion of fault code display.
#10 of 21 Re: 96 jgc codes [jeeps2]
Sep 11, 2007 (12:41 pm)
thanks. that kind of sucks. i just had my cat. replaced around 2 1/2 yrs ago. i don't know what kind of warranty those things/manufacturers/shops carry. anyway, the 12 and the 55 make since, now. thanks dude. i guess if anyone knows anything about typical cat. warranties, let me know. thanks again.
#11 of 21 Re: 96 jgc codes [efuller77]
Sep 11, 2007 (1:12 pm)
the only way the computer knows how well the cat is working is by comparing the oxc senser readings from before and after could be bad oxc sensers befor and after i have never had a cat go bad