Highlander 2WD V6-3.5L (2GR-FE) (2008)
(a) Disconnect the F1 automatic light control sensor connector.
(b) Measure the voltage and resistance according to the value(s) in the table below.
Standard voltage:
Standard resistance:
If the result is not as specified, there may be a malfunction on the wire harness side.
(c) Reconnect the automatic light control sensor connector.
(d) Connect an oscilloscope to the automatic light control sensor connector.
(e) Check the waveform.
OK:
HINT: If the ambient light becomes brighter, width A becomes narrower.
If the result is not as specified, replace the automatic light control sensor.