P107, P108, P300, C121C - Sudden and Unexpected

[48PowerWagon]

2015 6.4 Most of the Codes speak of a short (Low Voltage) - I suspect a bad bit of wiring (or vacuum leak) on the 5V rail but I don't have a clue where to start - anyone else have an experience like this?

 

[Burla]

Is it just happening in mornings are all the time? What does the 6.4 have for the MAP sensor?

 

[48PowerWagon]

It's Constant - haven't research the MAP Sensor yet I hope to check for shorts this weekend

 

[GTyankee]

C121C-Torque request signal denied - Obd2-code​

https://www.obd2-code.com › DTC C codes (ABS)

May 30, 2017 — C121C Code - When the Antilock Brake System (ABS) Module indicates if engine management relevant for Automatic Yaw Control/Traction Control ...
...................................................................................

This is slightly different, it adds -00 to the number

C121C-00 DODGE, CHRYSLER, DODGE CHARGER Torque Request Signal Denied

Powertrain Control Module (PCM) informed the Antilock Brake System (ABS) Module that it will not allow the engine torque reduction requests. Engine is above 360 rpm.

www.obd2-code.com

 

[GTyankee]

P0107 Dodge: Code Meaning, Causes, Symptoms, & Tech Notes

The Manifold Absolute Pressure (MAP) sensor measures the pressure inside the intake manifold. Pressure in the intake manifold is affected by engine speed,

www.engine-codes.com

P0108 Dodge: Code Meaning, Causes, Symptoms, & Tech Notes

The Manifold Absolute Pressure (MAP) sensor measures the pressure inside the intake manifold. Pressure in the intake manifold is affected by engine speed,

www.engine-codes.com