Fan Clutch Code P1481
I have a 2003 Trailblazer LS. I was sitting idle the other day and noticed the temperature gauge was over 210 degrees and the a/c was blowing hot air and the service engine light came on. Shut the truck off while I was sitting there and then started it back up and when I did that the temperature came down a few degrees and as long as I left the air off. When I got it home I looked at the fan and it wasn't running at all. A friend of mine pulled a code and stated it might be the fan clutch so I bought one of those and put it on and the fan kicked on for a few minutes then went back off he put his computer on it and stated that it was pulling a code of P1481 and the fan isn't doing anything now. Any suggestions on what it might be?
Its the cooling fan speed sensor that needs to be replaced...
sensor
Ok thanks....I will let my tech know
He said we have replaced all that and the fan isn't coming on and the code is still coming up
How accurate is this If the fan clutch has been replaced and the service engine light is still on and the suv is still running over 210 when sitting idle and the air conditioner is on? Someone told me it might be the thermostat and someone else told me it that it was the following statement If the vehicle is running hotter than 210 degrees and you open the hood and the fan is not turning is more than likely going to be electrical. The fan is controlled through the ECM engine control module the ECM may not be sending a signal once the vehicle reaches operating temp two-step the fans speed up
