When I turn the Igition to ON, the thermostat needle goes all the way up. This also happens reguardless of what the temperture is. I checked the resistance of the coolant temperture sensor according to the TSRM and it looked withing range. I also check the voltage output and I got about 5 volts. I checked my engine error code and I have no errors. Anyone might know how to solved this problem? Please help.
Thermostat Needle Always at High
- Thread starter supra_89_vang
- Start date
Yes, I does this regardless if the sensor is hooked up or not. Could this be cause by a blown fuse?
That tells me the wire from the sensor is or the gauge is grounding out:
http://www.cygnusx1.net/supra/Library/TSRM/MK3/manual.aspx?S=BE&P=42
Disconnected from the sensor, the gauge should move to cold (ignition on).
Where are you getting voltage at exactly?
Attach the connector to the sensor to a 3W test light or your multimeter with the other end grounded, with the ignition on. Does the light illuminate or meter show voltage?
If the gauge fuse was blown (powers the coolant gauge) you would have other gauges in the combination meter out (among other things).
http://www.cygnusx1.net/supra/Library/TSRM/MK3/manual.aspx?S=BE&P=42
Disconnected from the sensor, the gauge should move to cold (ignition on).
Where are you getting voltage at exactly?
Attach the connector to the sensor to a 3W test light or your multimeter with the other end grounded, with the ignition on. Does the light illuminate or meter show voltage?
If the gauge fuse was blown (powers the coolant gauge) you would have other gauges in the combination meter out (among other things).
is your motor over heating, if it is flush out the motor and get the 160 degree thermostat, but if its a bag gage check to see if you have any bad grounds of taped wire from ur thermosensor to your gage.
tsparks01;1113522 said:
^^^ Vang - Ignore this...do what I told you.
Confirm the sensor/wire in this pic:
jdub;1113525 said:^^^ Vang - Ignore this...do what I told you.
Confirm the sensor/wire in this pic:
What I replaced was the ECU sensor and not the Instrument cluster sensor. The voltage was measure across the hardness of the ECU sensor that would explain where I got the voltage. I didn't know that there was a seperate sensor to the cluster. I will measure the resistance of the cluster sensor and test it out.
supra_89_vang;1114204 said:
I suspected as such...hence the pic
Start from the beginning...disconnect the sensor, ignition on and see what the gauge does.