Auto Light Sensor: Inspection

Ignition "ON"
Using the scan tool.
Aim an incandescent lamp at the sensor to view the output voltage change.
The voltage will rise with higher intensive light and reduce with lower intensive light.

Fig 1: Body Control Module - Display Screen
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Fig 2: Current Data - Display Screen
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Fig 3: Auto Light Sensor - Display Screen
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NOTE: When checking auto light sensor, select a place where sun shines directly on it.
If the measured resistance is not within specifications, substitute with a known-good auto light sensor and check for proper operation.
If the problem is corrected, replace the auto light sensor.
Remove the photo & auto light sensor (A) from the upper crash pad.

Fig 4: Identifying Photo & Auto Light Sensor
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Disconnect the 6P connector from the auto light sensor then inspect the connector on the wire harness side, as shown in the chart.

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester connection	Condition	Specified condition
1-Ground	Auto light switch ON	Continuity
2-Ground	Sensor power	5V