Well my girlfriends 04 mazda 3 threw the check engine light this moring. We went to autozone who was able to pull the codes to see what it might be. It pulled up three different codes that weren't too helpful. The codes it threw was U0155, U0155 and P0126. The first two codes they could just tell us was something to do with a control module. The last code was a coolant thermostat condition. Any help on what I might be in for would be appreciated to get this thing back up and running right. The car has the 2.3L and127,000 on the odometer.

 

U0155 Lost Communication With Instrument Panel Cluster (IPC) Control Module
that sounds like a bad one - and you listed it twice, so what's the other code?

P0126 Insufficient Coolant Temperature for Stable Operation
may just need a new thermostat, after 127k that could be stuck open.

 

The other code is U0121 which also pulled up as a control module. Do you by chance know what control module it might be and where it is located?

 

U0121 Lost Communication With Anti-Lock Brake System (ABS) Control Module
Not sure where it's located, but the pump is just behind the battery, and there's a control box next to it that has many functions.

Unless you were unplugging things i'd take it to a repair shop to figure out what got disconnected. Then again you can just clear the codes and see if they come back.

BTW, for the codes, go to http://www.obd-codes.com/ and look them up, that'll get you some initial information.

 

Don't think those are the codes he was talking about. lol

 

He's a spambot.

lol post count +1