Section 50.2
SPN 609/FMI 14

This diagnostic condition is typically MCM incorrect or not programmed correctly.‪

Section 50.2.1
MCM Check

Check as follows:‪

1. Check to ensure the MCM is correct for the engine.
   1. If MCM is correct for the engine, go to step 2 .
   2. If MCM is not correct for the engine, contact Detroit Diesel Customer Support Center (313–592–5800) for authorization to replace the MCM. Set parameters on the new MCM.
2. Reset the MCM parameters.
   1. If fault code 233/14 is not active after the MCM parameters are reset, troubleshooting is complete.
   2. If fault code 233/14 is still active after the MCM parameters are reset, go to step 3 .
3. Check the MCM parameters to ensure they are correct for the vehicle configuration.
   1. If the MCM parameters are not correct, reset the parameters.
   2. If the MCM parameters are correct, contact Detroit Diesel Customer Support Center (313–592–5800) for authorization to replace the MCM. Set the parameters on the new MCM.