Insite issue, fault will not clear ...

[ktblogistics]

3 pin coolant lvl sensor is a volvo also, when i disconnect the plug code goes to open circut, sometimes it is the sensor itself but sometimes you have to buy new reservoir because of ball stuck inside, on volvo you can remove sensor without draining coolant maybe have same situation, sometime hitting reservoir with mallet helps, on volvo you have positive, negative and signal in the connector