Without Tachometer

Fuel Gauge Resistance And Engine Coolant Temperature Gauge Resistance:

1. Remove the power supply tightening screw.
2. Use an ohmmeter to measure the resistance value between the terminals.

CAUTION: When inserting the testing probe into the power supply terminal, be careful not to touch the printed board.
Standard value:
Power supply-Ground: 133.2 - 162.8 Ohm
Power supply-Engine coolant temperature gauge: 71.3 - 78.8 Ohm
Engine coolant temperature gauge-Ground: 200.7 - 245.3 Ohm