I have had problem the gauge is not working on the manual or the electronic as well, I cant get a reading at all

Turn the ignition key to the on position and ground the temperature gauge wire to the engine using a jumper wire, then watch the temperature gauge needle. If the gauge now reads Hot, replace the temperature sending unit. Otherwise, check the fuse for the temperature gauge circuit. If the fuse is good, turn the ignition key to the "on" position. Using a voltmeter, check for voltage at the ignition terminal on the gauge. If there is no voltage, there is a problem in the circuit between the ignition key and the gauge or the fuse panel and the gauge temperature. Fix the problem and test again. If there is voltage, replace the gauge.