| The interior light functions are determined by the states of the door contacts and of the S-contact, the ignition and the exterior vehicle lighting. The following components are involved in identifying the states: |
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| Driver door control unit -J386- |
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| Front passenger door control unit -J387- |
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| Rear left door control unit -J388- |
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| Rear right door control unit -J389- |
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| Convenience system central control unit -J393- |
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| Onboard supply control unit -J519- |
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| Entry and start authorisation button -E408- (optional extra) |
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| Entry and start authorisation switch -E415- |
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| Driver door contact switch -F2- |
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| Front passenger door contact switch -F3- |
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| Rear left door contact switch -F10- |
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| Rear right door contact switch -F11- |
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| Front left central locking actuator -F131- |
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| Front right central locking actuator -F133- |
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| Rear left central locking actuator -F132- |
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| Rear right central locking actuator -F134- |
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| Driver door central locking actuator for deadlock function -F243- (not USA) |
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| Front passenger door central locking actuator for deadlock function -F244- (not USA) |
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| Rear left door central locking actuator for deadlock function -F245- (not USA) |
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| Rear right door central locking actuator for deadlock function -F246- (not USA) |
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| Rain and light sensor -G397- (optional equipment) |
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