Electric fan not working..
#23
#24
Here is the radiator fan diagram: http://scionlife.org/Scion_Docs/2004...adCondFans.pdf
If the fan comes on with no problems when you turn on the A/C but never comes on when the engine starts to overheat, then the only 2 things that can cause that are bad contacts inside Relay #2 or bad fan resistor. Assuming all the wires are connected and intact.
It's possible to have bad ECU or Temp sensor but that rarely happens and would normally turn on the Check Engine Light on.
Make sure the coolant level is OK inside the system, not just reservoir.
If the fan comes on with no problems when you turn on the A/C but never comes on when the engine starts to overheat, then the only 2 things that can cause that are bad contacts inside Relay #2 or bad fan resistor. Assuming all the wires are connected and intact.
It's possible to have bad ECU or Temp sensor but that rarely happens and would normally turn on the Check Engine Light on.
Make sure the coolant level is OK inside the system, not just reservoir.
#25
Here is the radiator fan diagram: http://scionlife.org/Scion_Docs/2004...adCondFans.pdf
If the fan comes on with no problems when you turn on the A/C but never comes on when the engine starts to overheat, then the only 2 things that can cause that are bad contacts inside Relay #2 or bad fan resistor. Assuming all the wires are connected and intact.
It's possible to have bad ECU or Temp sensor but that rarely happens and would normally turn on the Check Engine Light on.
Make sure the coolant level is OK inside the system, not just reservoir.
If the fan comes on with no problems when you turn on the A/C but never comes on when the engine starts to overheat, then the only 2 things that can cause that are bad contacts inside Relay #2 or bad fan resistor. Assuming all the wires are connected and intact.
It's possible to have bad ECU or Temp sensor but that rarely happens and would normally turn on the Check Engine Light on.
Make sure the coolant level is OK inside the system, not just reservoir.
#27
Here is the radiator fan diagram: http://scionlife.org/Scion_Docs/2004...adCondFans.pdf
If the fan comes on with no problems when you turn on the A/C but never comes on when the engine starts to overheat, then the only 2 things that can cause that are bad contacts inside Relay #2 or bad fan resistor. Assuming all the wires are connected and intact.
It's possible to have bad ECU or Temp sensor but that rarely happens and would normally turn on the Check Engine Light on.
Make sure the coolant level is OK inside the system, not just reservoir.
If the fan comes on with no problems when you turn on the A/C but never comes on when the engine starts to overheat, then the only 2 things that can cause that are bad contacts inside Relay #2 or bad fan resistor. Assuming all the wires are connected and intact.
It's possible to have bad ECU or Temp sensor but that rarely happens and would normally turn on the Check Engine Light on.
Make sure the coolant level is OK inside the system, not just reservoir.
#30
Can you just do what i suggested in post #26? You are not looking for power- you need to see ground. That means the alligator clip on the test light needs to be on the positive battery terminal and once you touch #4 pin on the socket for the relay #2 with the test light's tip the light should come on.
#31
Can you just do what i suggested in post #26? You are not looking for power- you need to see ground. That means the alligator clip on the test light needs to be on the positive battery terminal and once you touch #4 pin on the socket for the relay #2 with the test light's tip the light should come on.
#32
#33
#34
Then i don't think you have electrical problem. If you disconnected the temp sensor and the fan kicked in- that's how it's supposed to work. Are you sure your car actually overheats? The cap may be bad so the coolant may be coming out because of that. If you hold RPM at about 2K for few minutes i think the fan will be on.
#35
Then i don't think you have electrical problem. If you disconnected the temp sensor and the fan kicked in- that's how it's supposed to work. Are you sure your car actually overheats? The cap may be bad so the coolant may be coming out because of that. If you hold RPM at about 2K for few minutes i think the fan will be on.
#37
Ok cool we used the test light to check the wire on the end of the temp sensor and there's nothing and now that I'm gettn engine light it must be it ill try to repace it sunday and ill post and I really thank you for your help reactor I'm just new to the xb and just got it making sure its cool before I drive it I don't need to replace the motor lol
#38
Sensor gets only 5 Volts from ECU when the key is on, so that's not something you would check with the test light that needs 12 Volts.
You can disconnect battery for few minutes to turn off the warning lights on the dash.
You can disconnect battery for few minutes to turn off the warning lights on the dash.
#39
So whit everything we talked about what would you say the problem is?