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Automatic Day/Night Mirror Test

  1. Turn ignition switch to ON position. Place gearshift lever in Park. Place mirror switch in either LO or HI position. See Fig 1 . Cover forward facing sensor and shine a light into rear facing sensor. Mirror should darken.
  2. Place gearshift lever in Reverse. Mirror should return to normal condition. If conditions are not met, check for battery voltage between specified pins. See AUTOMATIC DAY/NIGHT MIRROR VOLTAGE TEST  .
Fig 1: Automatic Day/Night Mirror Sensors & Connector Pins
G91A08845Courtesy of CHRYSLER CORP.
AUTOMATIC DAY/NIGHT MIRROR VOLTAGE TEST

Pins No. Test Condition Specification
1 & 2 (1) Ignition On Battery Voltage
3 & 2 (1) In Reverse Gear Battery Voltage
(1) Pin No. 2 is ground.