SOURCE: volvo 850 fan stays on
Hello! Even though you have replaced the Throttle Positioning Sensor (TPS) This does not insure that Input and Output reach their proper destination...If you have a volt meter here is a test procedure to eliminate the TPS from the equation...
The wire colors and signal names for the TPS are...Orange/White...Sensor output...Yellow...5volt reference...And Brown/Black return...Using two safety pins...Push the point into the rear of the in-place connector on the Brown/Black...The other on the Yellow...Set the meter to read +5 volts...Hook the + probe to Yellow...And - probe to Brown/Black...Turn the key to ON...Must read +5 volts...Move the Yellow pin to the Orange/White wire...Must read less than 1 volt (.85)...Send a comment and I'll take it from there...Often times people become convinced that there can only be one thing wrong...Double faults are rather common................Guru...........Saailer
I’m happy to help further over the phone at https://www.6ya.com/expert/david_6df67de3b14de867
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