2. Measure the resistance between the connection terminals with an ohmmeter (pic. 15.5a,b).
Rated value: resistance between power supply and «weight»: 192±19.2 ohm, between power supply and fuel gauge: 89±8.9 ohm, between fuel gauge and «weight»: 103±10.3 ohm.
Pic. 15.5a. Checking the resistance of the fuel gauge (cars with tachometer) | 
Pic. 15.5b. Checking the resistance of the fuel gauge (cars without tachometer) |