Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Solar Sensor: Testing and Inspection

Sunlight Sensor
Self-diagnosis indicator light C comes on: Indicates a problem in the sunlight sensor circuit. Use a digital multimeter (KS-AHM-32-003) to check it.

The sunlight sensor is a light sensitive, variable resistance diode. The resistance of the diode increases as the intensity of the light increases.

Part A:





Part B: