312001211 - 7065CD AUTOMATIC ANTI-GLARE FUNCTION TEST

When driving at nightime if the switch is in the ON position the mirror detects the main beam headlamps of following vehicles and dims automatically to eliminate any glare that could dazzle the driver.Activation of automatic anti-glare functionIf the green LED (A) is on, the automatic anti-glare function is activated.To switch the function on, keep switch (B) pressed for 3 seconds until the LED comes on.Once the switch is released, the automatic anti-glare function is activated.With reverse engaged the anti-dazzle function is therefore excluded
STEPCHECK TO BE PERFORMEDREMEDIAL ACTION IF THE CHECK IS NOT OK
0Preliminary check

To check the mirror anti-glare function it is necessary to:

  • turn the switch to the ON position;
  • cover the light sensor at the back of the rear view mirror with black tape;
  • shine a light beam on the sensor at the front of the mirror simulating the main beam headlamp from a following vehicle.
During the first test the mirror should get dark in 2 minutes ifIt is working properly
1Power supply checkTurn the key to the MAR positionUsing an Examiner in voltmeter mode, check that there is a 12 V battery voltage between pin 1 and earth    See E3032 DOOR MIRROR ADJUSTMENT Renew the wiring between pin 24 of the Body computer and pin 1 of the mirror connectorReplace fuse F49 of the dashboard junction unit after having identified the cause of the break
2Check earth connectionDisconnect the mirror connectorUsing the Examiner in ohmmeter mode, check that the resistance between pin 2 and earth is less then 1 ohm    See E3032 DOOR MIRROR ADJUSTMENT Restore the connection between pin 2 of the mirror connector and earth in the area of the left rear light cluster
3Reverse gear signal checkTurn the key to the MAR positionDisengage reverse gearUsing an Examiner in voltmeter mode, check that there is a 0 V battery voltage between pin 3 and earth    See E2022 REVERSING LIGHTS Restore the correct insulation for the wiringReplace the reversing switch    Op. 5550D22 REVERSING LIGHT SWITCH - R+R If no faults have been found during the previous checks, replace the mirror    Op. 7065C68 INTERIOR REAR VIEW MIRROR - R+R
Electrochromic mirrorA. green LEDB. Switch
Mirror connector
PinFunction
1+12V ignition from Body Computer
2Earth
3+12V signal from reverse