Threw FICM and VSS code today

[Carl(05/6.0L/BullyDogGT)]

truck surged really bad twice coming from a stop sign, so i looked at the codes and there was the P0611 FICM code, probably needs replacement, but whats with the Vehicle Speed Sensor A code, i believe it was P0500, cant remember though.

[dannyboy950]

The PCM compares a number of sensors to determin its fuel strategies, the VSS is amoung those sensors. The FICM code may be related to this. Sorry I don,t have access to ISIS to tell exactly what the codes are.

[dannyboy950]

PO500
Mechanical drive mechanism for the VSS is damaged
VSS (+) or (-) signal circuit is open, shorted to ground or power
VSS is damaged or it has failed
PCM has failed
TSB 01-21-13 contains a repair procedure for this code

Po611
FICM is damaged or it has failed. Replace the FICM and then retest the system for trouble codes.
PCM has failed
Before I replaced the FICM or PCM I would recomend checking the wire harness and plug-ins for problems.

[Powerstroke12]

Make sure batteries are good. Bad batteries can cause FICM failure because there isn't proper volts going to it. Had my FICM go and found out had one bad battery.