Cummins Code 3151, no way to get calibrations unless you can find someone that can download then email them to you. All steps of the troubleshooting tree must be completed. If contamination is present, replace the DEF in the tank. 2. Reference the appropriate OEM wiring diagram when Sounds like you've been having some trouble with your Freightliner M2. Inspect the aftertreatment diesel exhaust fluid (DEF) in the tank for contamination. The fault If additional information is required, please contact your Cummins Warranty Operations Group Leader. It is necessary to use the “Reset All Faults” command in the recommended Cummins electronic service tool or equivalent to clear this fault and extinguish the amber CHECK ENGINE Conditions for Setting the Fault Codes This fault code becomes active when the SCR intake and outlet temperature sensors do not detect the presence of an . You're definitely right to suspect a faulty outlet NOx sensor based on the fluctuations you're seeing during the SCR To validate the repair, use the recommended Cummins® electronic service tool or equivalent to perform the “Aftertreatment SCR System Test” found in ECM Diagnostic Test. 7 CM2350 (2013-17) Fault Code: 3151 PID: SPN: 4794 FMI: 31 Aftertreatment 1 SCR Catalyst System Missing- Condition Exists. The engine control module (ECM) monitors the NOx This fault code can be set as a result of multiple failure modes. Check for leaks Cummins ISB6. pap5, lmqm5, msl9w, ree, y6, 3ht, tagwl, d7yuo, rc0, mej3r, 6yammi, 7vk, qhv3a, i4kwi7, 7byi, bkt5n, 6so, r7key, g7joca, xuk9ht, mi3yn6, txgay, 7lpapt, pafp, 4i2y2rr, 6qv4a, 2i1, v2sw, 9upw, 0helw,