How to resolve the P0651 fault code?
1 Answers
P0651 fault code applies to all car manufacturers, meaning Sensor Reference Voltage B Circuit/Open fault. It is recommended to check the data stream of each sensor and inspect the wiring for aging or breakage, and repair any faults immediately upon discovery. The following is a related introduction: The fault code appears when the Electronic Control Unit (ECU) detects an error in the 5-volt reference voltage circuit B. Possible causes include a short circuit or open circuit in the 5-volt reference voltage circuit to a sensor, short circuit or open circuit in one or more sensors, automatic transmission hydraulic sensor failure, solenoid valve failure, transmission control module failure, transmission input speed (RPM) sensor failure, transmission output speed (RPM) sensor failure, etc.