Component Tests and General Diagnostics

1 INSPECT HEADLIGHT BEAM LEVEL CONTROL ACTUATOR RESISTANCE
a. Check that continuity exists between terminals 2 and 5.
b. Check that resistance exists between terminals, as shown in the chart.
If resistance value is not as specified, replace the actuator.







2. 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.







3. INSPECT HEADLIGHT BEAM LEVEL CONTROL ECU CIRCUIT
Connector Connected:
Connect the Connector from ECU and inspect the Connector.
If the circuit is not as specified, replace the ECU.




Reference: INSPECTION USING OSCILLOSCOPE

HINT: The correct waveform is as shown in the illustration.