P061C sets when the the primary engine speed calculation differs from the redundant engine speed calculation (internal calculation) by a calibrated amount for a calibrated amount of time. The ECM redundantly calculates engine speed based crankcase speed sensor. This calculation is done in a different part of the ECM than the primary calculation.

Customer: have a p061c code with vehicle running in limp mode. Trying to diagnose the crank position sensor wiring but need pcm wiring for crank and cam sensors. Trying to diagnose the crank position sensor wiring but need pcm wiring for crank and cam sensors.

Dec 4, 2009 · P061C This diagnostic is testing for an internal ECM failure. The ECM redundantly calculates engine speed based crankcase speed sensor. This calculation is done in a different part of the ECM than the primary calculation.

May 13, 2017 · So i have a 2009 Dodge ram 3500 dually laramie 6.7 cummins but this past week the red lighting bolt light has been staying most of the time. It will go out once in a while but I hooked up the scan tool this morning it threw P061C INTERNAL CONTROL MODULE ENGINE RPM PERFORMANCE what does this mean...

Nov 13, 2009 · P061C-ETC LEVEL 2 RPM PERFORMANCE For a complete wiring diagram, refer to the Wiring Information. Theory of Operation This diagnostic is testing for an internal ECM failure. The ECM redundantly calculates engine speed based crankcase speed sensor. This calculation is done in a different part of the ECM than the primary calculation.

2014 Ford F150 3.5 Ecoboost ignition problems. P0322; P061C. 147k. It runs fine for awhile, then super rough, dies some.

Oct 17, 2015 · Went to the track (Roebling Road) in August. Car ran fine in the first session. End of the second session it threw the wrench light and went into limp mode. Turning the car off, and back on resulted in limp mode being gone and no code. Ran 2 laps in session 3, car went into limp mode and threw P061C - internal control module RPM performance.

Jun 6, 2014 · And for P061c: Theory of Operation This diagnostic is testing for an internal ECM failure. The ECM redundantly calculates engine speed based crank- case speed sensor. This calculation is done in a different part of the ECM than the primary calculation.

Feb 23, 2010 · P061C etc Level 2 Rpm Performance Jump to Latest 17K views 15 replies 4 participants last post by Apocalypse1812 Feb 26, 2010

Oct 17, 2015 · The car threw a CEL on track for the p061C code and went into limp mode. It also threw numerous misfire codes and went into limp mode. The car ran fine on the street. The tech monitored live data with the IDS. Based on that, he knew something was wrong, but not what.