P20C7

DTC P20C7, sometimes indicated as P20C700 is an OBD diagnostic trouble code indicating a manufacturer-specific fault with the vehicle powertrain (i.e. engine and gearbox). This code identifies an error with the air/fuel mixture causing reductant heater "d" control circuit low.

The P20C7 code means that the reductant heater "D" control circuit is low. This could be caused by a number of things, such as a bad circuit board, a bad connection, or a bad sensor.
To fix this problem, you will need to find and fix the cause of the problem. Once you have done that, you will need to reset the code.

• P20C7: Reductant Heater D Control Circuit Low
• P20C7: Reductant Heater "D" Control Circuit Low
• P20C7: Reductant heater control D – circuit low
• P20C7 00: Reductant heater control D - circuit low