Contents: Checking the resistance of the…⇓ Checking the electronic control unit ⇓ Checking the electrical parameters…⇓
Checking the resistance of the injector winding
Disconnect the injector plug connector.
Measure the resistance of the injector winding with an ohmmeter; it should be within 12-16 Ohms.
Checking the electronic control unit
[Content based on information from: Mazbook]
The electronic control unit is located on the front panel on the side of the car's interior.
Measure the voltage on the plugs in the electronic unit connector with a voltmeter, connecting the voltmeter terminals according to the table.
Checking the electrical parameters of sensors
Using the table, check the electrical parameters of the sensors using a voltmeter or ohmmeter, connecting them to the sensor blocks.
Coolant temperature sensors are tested by placing them in a tank with water or coolant that can be heated. A 12 V power source and an ohmmeter are connected to the sensor. After turning on the water heating or cooling it, the resistance between the sensor terminals is measured.
