DTC Description: Notes
WARNING: This page is about a different car, the 2018 Nissan Titan XD. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
If DTC P21CA-00 is displayed with this DTC, first perform the trouble diagnosis for other DTC.
- P21CA-00 present. Refer to DTC Description .
The Diesel Exhaust Fluid (DEF) tank temperature sensor measures the temperature of the fluid inside the DEF tank. The DEF control module monitors the variation in voltage caused by changes in the sensor resistance to determine the fluid temperature. DEF tank temp sensor is integrated in the DEF supply pump assembly. It must be replaced with the DEF Supply Pump assembly.