Description
OBD-II Trouble Code Description for P0651 Dodge
Sensor Reference Voltage “B” Circuit/Open
What does this mean?
OBD2 Code P0651 Dodge definition:
These 5-volt reference circuits are independent of each other outside the PCM, but are bussed together inside the Engine Control Module (ECM). Therefore a circuit condition on one sensor 5-volt reference circuit may affect the other sensor 5-volt reference circuits. The ECM monitors the voltage on the 5-volt reference circuit.
Causes
Possible causes of OBD code P0651 Dodge
– Shorted sensor – Shorted sensor circuit – Failed ECM The Error code is generally activated on detection of the following conditions: The ECM has detected an out of voltage range on the 5 volt reference circuit 2
Possible Solutions