My check engine light came on and it's showing a few codes. My truck is an 04 dodge ram slt 1500 with a 5.7 liter hemi. It showed the following codes U0155, P0137, P0440 and a U0101. Also it's saying that it has a mismatched vehicle identification number for an abs code I believe. Can anyone help me and let me know if all of these issues are related and my best course of action to take in getting them fixed. Thanks.
Probably not. Your P0137 code is an oxygen sensor code, specifically bank 1 sensor 2 low voltage code. P0440 is related to an emissions EVAP issue. U0155 and U0101 may be present, but may not be actually setting the CEL. I can not recall what these two codes are specifically, but I would diagnose and repair the first two codes first. Although it's possible the P0137 and P0440 may both be caused by a common issue, ( bad PCM or connection to PCM, rodent infestation where a wiring harness has been chewed on ) it is much more likely the two issues have nothing to do with each other and need to be diagnosed separately. Good luck I hope this helps!
0155 and 0101 are communication failures between the instrument panel cluster and tcm respectively. Some have been able to correct it by cleaning connections at the fuse box, but most likely you'll be replacing the ipc. EVAP and o2 may or may not be related.
A code P0440 could mean one or more of the following has happened:
The gas cap is not installed or working properly
The purge solenoid has failed
The canister is plugged and not working properly
Possible Solutions
With a P0440 OBD-II trouble code, diagnosis can be tricky at times. Here are some things to try:
Remove and reinstall the gas cap, clear the code, and drive for a day and see if the codes come back.
Inspect the EVAP system for cuts/holes in tubes/hoses
Inspect for damaged or disconnected hoses around the Evap purge solenoid
Check and/or replace the sensor
Check and/or replace the purge valve
HELLO I am woundering what the u0155 code was about my jeep wrangler has a 2004 dodge hemi in it and today while i was replacing the transmission selector cable the dash went dead all my gauges do not work could you help me out with this problem? thank you for reading this and i hope you have enough time to help me out.
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