Automatic Light Control Function Does Not Operate

LIGHTING (EXT): LIGHTING SYSTEM: Automatic Light Control Function does not Operate
- Automatic Light Control Function does not Operate

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. READ VALUE USING TECHSTREAM (AUTOMATIC LIGHT CONTROL SENSOR)

(a) Using the Techstream, read the Data List.

Main Body





OK:

Illuminance value is displayed normally.

NG -- CHECK HARNESS AND CONNECTOR (AUTOMATIC LIGHT CONTROL SENSOR - MAIN BODY ECU)
OK -- Continue to next step.

2. READ VALUE USING TECHSTREAM (HEADLIGHT DIMMER SWITCH)

(a) Using the Techstream, read the Data List.

Main Body





OK:

When the headlight dimmer switch operation is performed, the result will be the same as above.

NG -- INSPECT HEADLIGHT DIMMER SWITCH

OK -- REPLACE MAIN BODY ECU

3. INSPECT HEADLIGHT DIMMER SWITCH

(a) Remove the headlight dimmer switch Removal.





(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





NG -- REPLACE HEADLIGHT DIMMER SWITCH Removal
OK -- Continue to next step.

4. CHECK HARNESS AND CONNECTOR (HEADLIGHT DIMMER SWITCH - MAIN BODY ECU AND BODY GROUND)

(a) Disconnect the E14 switch connector.





(b) Disconnect the E1 ECU connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE MAIN BODY ECU

5. CHECK HARNESS AND CONNECTOR (AUTOMATIC LIGHT CONTROL SENSOR - MAIN BODY ECU)





(a) Disconnect the E2 ECU connector.

(b) Disconnect the F9 sensor connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

6. CHECK MAIN BODY ECU (CLTB VOLTAGE)





(a) Disconnect the E2 ECU connector.

(b) Measure the voltage according to the value(s) in the table below.

Standard Voltage:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE AUTOMATIC LIGHT CONTROL SENSOR Removal