The past few days the JK has been acting really funny. It started out on Tuesday when I was driving. All of a sudden, the engine started to spit, its almost died and then the speedo and tach started going crazy followed by almost every light in the cluster going on and off. Friday my daughter drove it to school and it wouldn't start afterwords. I ran down later that night and it started right up. I let it run and it acted fine. I started home and within 1/4 mile it quit. It wouldn't start up. It had power but wouldn't even turn over. At first I thought the starter was gone. it would just click. I let it sit for a minute and tried again. It started but wouldn't rev no matter how much I pushed on the gas. I put it in drive to get out of the middle of the intersection but it was just a crawl. It would go faster in reverse, so I backed into a parking space. The only thing I could think of was to run the codes. I didn't have my tuner so I just pulled the battery cables off and let it sit for a few minutes. I hooked them back up and it started right up and would rev. I decided to make a run for it and made it home.
The codes that came up when I threw the scanner on are P0051 02 sensor 2/1 heater circuit low, P0057 02 sensor 2/2 heater circuit low, P0031 02 sensor 1/1 heater circuit low, P0037 02 sensor 1/2 heater circuit low. Then there are the next two that lead me to believe I have a PCM issue. U118A lost communication with AFS module left, and U118B lost communication with AFS module right.
I have done a few searches and everything keeps pointing to the PCM. I disconnected the battery today and let it sit for an hour or so. I disconnected the connectors to the PCM and then hooked things back up. The engine light is still on. I have cleared the codes and disconnected the battery again. After starting it up, the engine light goes back on and I get the same codes.
Any ideas?
The codes that came up when I threw the scanner on are P0051 02 sensor 2/1 heater circuit low, P0057 02 sensor 2/2 heater circuit low, P0031 02 sensor 1/1 heater circuit low, P0037 02 sensor 1/2 heater circuit low. Then there are the next two that lead me to believe I have a PCM issue. U118A lost communication with AFS module left, and U118B lost communication with AFS module right.
I have done a few searches and everything keeps pointing to the PCM. I disconnected the battery today and let it sit for an hour or so. I disconnected the connectors to the PCM and then hooked things back up. The engine light is still on. I have cleared the codes and disconnected the battery again. After starting it up, the engine light goes back on and I get the same codes.
Any ideas?