Corolla L4-2.4L (2AZ-FE) (2010)
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Ambient Light Sensor: Component Tests and General Diagnostics
LIGHTING (EXT): AUTOMATIC LIGHT CONTROL SENSOR: INSPECTION
1. INSPECT AUTOMATIC LIGHT CONTROL SENSOR
(a) Disconnect the automatic light control sensor connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
(c) If the result is not as specified, there is a malfunction on the wire harness side.
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
(e) If the result is not as specified, there is a malfunction on the wire harness side.
(f) Reconnect the automatic light control sensor connector.
(g) Connect an oscilloscope to the automatic light control sensor connector.
(h) Check the waveform.
