Component Tests and General Diagnostics
INSPECT HEADLIGHT BEAM LEVEL CONTROL ACTUATOR RESISTANCEa. Check that continuity exists between terminal 2 and 5.
b. Check that resistance exists between terminal, as shown in the chant.
If resistance value is not as specified, replace the actuator.
INSPECT HEADLIGHT BEAM LEVEL CONTROL ECU CIRCUIT
Connector disconnected:
Disconnect the connector from the ECU and inspect the connector on the wire harness side, as shown.
If circuit is not as specified, perform the inspection on the following condition.
INSPECT HEADLIGHT BEAM LEVEL CONTROL ECU CIRCUIT
Connector connected:
Connect the connector from the ECU and inspect the connector on the back side as shown in the chart
If circuit is not as specified, replace the ECU.
Reference INSPECTION USING OSCILLOSCOPE
HINT: The correct waveform is as shown in the illustration.