On-Vehicle Inspection
- CHECK AUTOMATIC LIGHT CONTROL SENSOR
- Disconnect the L1 sensor connector.
- Connect the voltmeter's positive (+) lead to terminal 6 and the negative (-) lead to terminal 3.
- Measure the voltage of the connector.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Standard voltage
TESTER CONNECTION SPECIFIED CONDITIONTester Connection Specified Condition L1-3 (CTLE) - L1-6 (CTLB) 10 to 14 V - Measure the resistance of the connector.
Standard resistance
TESTER CONNECTION SPECIFIED CONDITIONTester Connection Specified Condition L1-3 (CTLE) - Body ground Below 1 Ω - Reconnect the L1 sensor connector.
- Check the waveform of the L1 sensor connector.TESTER CONNECTION SPECIFIED CONDITION
Tester Connection Condition Specified Condition Tester Range L1-3 (CTLE) - L1-5 (CTLS) Power switch ON (IG), Headlight dimmer switch in AUTO Waveform is as shown 5 V/DIV., 5 msec./ DIV. HINT:
If the ambient light becomes brighter, width A becomes narrower.
If the result is not as specified, replace the automatic light control sensor.