P205b64 Volvo Code
The p205b code stands for reductant tank temperature sensor circuit range/performance, which means the power control module (pcm) didnt get the right response from the reductant tank temperature sensor. To solve the p205b fault code, replace the exhaust gas temperature sensor and clear the code using a diagnostic tool. Steps to fix are listed inside. That may include but is not limited to vehicles from mercedes, sprinter, ford, gmc, chevrolet, etc. Although generic, the exact repair steps may vary depending on year, make, model and powertrain configuration.
The p205b64 is a fault code for the reductant tank temp circuit range. This has to do with def tank temp changes. There is software enhancements for this fault. Check the sensor wiring harness connection. Disconnect the harness and make sure there is no damage to the wires or pins, corrosion, or water ingress in either of the connectors. Volvo all engines (2017 emissions) fault code: Ems reductant tank temperature sensor circuit range/performance. Aftertreatment control module (acm) monitors def tank temperature and uses it to control the aftertreatment def tank heater valve to keep the def from freezing. The last info i have from aaron cool:
