2. Measure the resistance between the connection terminals with an ohmmeter (pic. 15.6a,b). Rated resistance value:
- between power supply and «weight»: 187±18.7 ohm
- between power supply and coolant temperature gauge: 90±4.5 Ohm
- between the coolant temperature gauge and «weight»: 247±24.7 ohm
Pic. 15.6a. Checking the resistance of the coolant temperature gauge (cars with tachometer) | 
Pic. 15.6b. Checking the resistance of the coolant temperature gauge (cars without tachometer) |