Automatic Light SENSOR Repair Procedures

Inspection

In the CONTACT 1 ON state, when the multifunction switch module detects an activated automatic light switch, the tail lamp relay output and the low beam relay output are controlled by the automatic light sensor input function. Automatic lighting control does not operate if the power supply to the sun sensor pin (5 V regulated power from ignition 1 to the solar collector) is shorted to ground. If CONTACT 1 is ON, the BCM monitors the range of this power supply and detects a fault as soon as the supply voltage goes outside the permissible limits. When this fault occurs and for as long as it exists, the headlamps must be turned on regardless of the natural light level provided by the sensor. This prevents the headlamps from being switched off in the event of a failure at night.

DEPOSIT

1. 1
   Disconnect the negative (-) battery terminal.
2. 2
   Remove the automatic light sensor (A) from the upper side of the trim. Release the latch using a screwdriver or a removal tool.

   

3. 3
   Disconnect the automatic light connector.

REMEDY

1. 1
   Connect the automatic light connector.
2. 2
   Install the automatic light sensor.