volvo Workshop Repair Guides

Volvo Workshop Service and Repair Manuals

Backup Lamp > < Traction Control Indicator Lamp|Description and Operation
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Ambient Light Sensor: Testing and Inspection

Trouble-Shooting Information

Condition

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No diagnostic trouble codes are stored

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Fault is permanent

NOTE:  If the nightfall sensor is covered, the climate control module (CCM) does not receive any signals regarding light intensity, and the
brightness of the LED buttons cannot be regulated. These types of error are not included in trouble-shooting.

Possible source

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Defective measuring instrument

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Defective nightfall sensor.

Backup Lamp > < Traction Control Indicator Lamp|Description and Operation