P0C23 OBD-II: AUXILIARY Transmission Fluid Pump Control Module Circuit/Open
P0C23 Severity
Should you fix P0C23 yourself?
Identifying an OBD code is just the start of a complete diagnostic routine. Most trouble codes are caused by a sensor reporting a value that is out of range. Just replacing a sensor may not fix underlying issues. Be sure to understand the code, the part or system in your car that the code refers to, and the risks of delaying professional repair.
Proper diagnosis will save you time and money on unnecessary repairs.
Urgent codes indicate immediate action is necessary. These are urgent and significant malfunctions that can cause severe damage to the vehicle or harm the driver and passengers.
What causes OBD-II fault code P0C23?
The Auxiliary Transmission Fluid Pump pressurizes the fluid in the transmission. The Auxiliary Transmission Fluid Pump Control Module runs a self-check to ensure it is capable of performing its required functions. If the module does not have the correct amount of voltage going to it, code P0C23 is stored.
Ask our experts about P0C23.
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