Bootlid central locking system motor (184H)
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Bootlid central locking system motor (184H)
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Bootlid central locking system motor (184H)
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Unlock luggage compartment.
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Use of a
switch
to indicate whether the boot lid is open or closed. The value is used for the anti-theft alarm function, for luggage compartment lighting and to inform the driver that the boot lid is not closed. The body control module sends the status of the switch on the bus.
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The central locking system motor has one electric motor, which via a worm gear is connected to the lock mechanism. The motor has 2 connections. The switch contains a single pole breaker and 2 resistors. When the bootlid is closed the breaker is open and the resistance is 1.8kΩ. When the bootlid is opened the breaker makes and a resistance of 620Ω is connected in parallel with the original resistance. The total resistance then drops to 460Ω.
Motor
The motor is connected with 2 cables to the rear electrical centre. The rear electrical centre unlocks by sending battery voltage on the cables. In the idle position the circuit is dead. The wiring harness to the motor has 6 extra dummy cables in order to impede car theft. All cables are black.
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Pin
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Signal type
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Description
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3
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Ground
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From REC
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4
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Power supply 10.2V
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Via an integrated resistor in BCM of 1.5kΩ
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Diagram
Motor
The motor is connected with 2 cables to the rear electrical centre. The rear electrical centre unlocks by sending battery voltage on the cables. In the idle position the circuit is dead.
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Pin
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Signal type
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Description
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1
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Power supply 10.2V
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Via an integrated resistor in BCM of 1.5kΩ
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2
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Ground
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Connected via REC to G3/29
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Diagram
