Corolla L4-1.8L (2ZR-FE) (2009)
Ambient Light Sensor: Component Tests and General Diagnostics
LIGHTING (EXT): AUTOMATIC LIGHT CONTROL SENSOR: INSPECTION
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:
If the result is not as specified, there is a malfunction on the wire harness side.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
If the result is not as specified, there is a malfunction on the wire harness side.
(d) Reconnect the automatic light control sensor connector.
(e) Connect an oscilloscope to the automatic light control sensor connector.