Hi, my 01 accord 3.0 v6 has an unresponsive temperature gauge, it has no response from when the car is started til stoped.

Ive Checked Voltage readings from each of the sensors and it appears all of them are working, diagnostics say that the engine is still being cooled properly.

Any ideas?

 

Check that temp sensor is plugged in. I don't know location on V6, but no response indicates an open circuit. Could be open sensor, disconnected sensor, broken wire, or failed gauge panel circuit. Sensor is usually located near the thermostat.

good luck

 

Something in the back of my mind.... so I checked parts drawings.

The sender for the temperature gauge is a 1-wire sender in the thermostat housing. Shown as #13 in the picture.

BUT... for 2001 the parts list DOES NOT show #13. So I think that the ECU uses its water-temperature sensors and drives the temperature gauge.

So if all the sensors read OK with a scanner, then I'm guessing it's a bad connection to the back of the gauge cluster. Did you check the sensors with an ECU scanner or did you just use a DMM to measure the sensors themselves?

 

First, check the No. 9 fuse in the driver's side under-dash fuse/relay box.

98-99 Accords uses an ECT sending unit, 00-02 Accords uses the PCM.

Here is the Engine Coolant Temperature gauge circuit description for the 00-02 Accords:

The engine coolant temperature gauge has two intersecting coils wound around a permanent magnet rotor. Voltage applied to the coils, through fuse 9 (in driver’s under-dash fuse/relay), generates a magnetic field. The magnetic field, controlled by the PCM, causes the rotor to rotate and the gauge needle to move. As the PCM varies the current, current through the gauge coils changes, moving the gauge needle toward the coil with the strongest magnetic field.

 

Im thinking it must be somewhere in the wiring, being disconnected i changed out the guage cluser it still doesn't work.