Magnum V8-5.7L VIN H (2005)
Steering Column Control Module: Description and Operation
STEERING COLUMN CONTROL MODULE
DESCRIPTION
WARNING:To service any component of the SCCM, the entire assembly must be removed from the column. This must be done due to the clockspring
passing through the assembly and into the self docking connector. Failure to remove the assembly could damage the pins of the clockspring
and prevent the airbag system from operating properly.
Tilt and telescope steering columns are standard on all models. On 300 Hemi C and international 300C models the tilt and telescope functions are
powered and are also included in the standard Memory System settings. Combined with available power seats and optional power adjustable pedals,
the tilt and telescope steering column gives the driver every known adjustment to obtain a comfortable driving position. Both columns provide 2.36
inches (60 mm) of telescoping adjustment and 5.2 degrees of tilt. The adjustments are continuously variable for maximum adaptability.
A lever on the left side of the column controls powered adjustment. Fore and aft motion of the lever operates the telescoping mechanism. Up and
down motion operates the tilt mechanism. Two electric motors turning threaded actuators move the column. The mechanisms lock in place when
movement stops.
The Steering Column Control Module (SCCM) is mounted on the steering column and is removed as a complete unit. The components that are
contained within this unit are:
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Clockspring - is attached to the top of the SCCM with three screws. The clockspring connector passes through the body of the SCCM and its
terminals slide into the male side of the self docking connector within the Steering Column Module (SCM).
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Multi-Function Switch - is the middle left lever, and is plugged into, and mounting pins pass through, the SCM secured to the SCCM housing by
three screws.
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Speed Control Switch - is the top left lever and is plugged into the SCM and held in place by the three screws of the clockspring.
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Steering Angle Sensor (if equipped with Electronic Stability Program (ESP) - is mounted on the right side of the SCCM, below the clockspring
and is responsible for informing the ESP of steering angle.
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Steering Control Module (SCM) - is the module located in the bottom of the SCCM, retained by three screws, and is the mating point for all the
switches and clockspring located in the SCCM.
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Tilt/Telescopic Lever/Switch (if equipped) - is the bottom left lever and is used for steering wheel tilt and telescoping. it is plugged into the SCM
and if not equipped, will be replaced by a support bar. It is held in place by one the three clockspring screws and one of its own retaining screws.
The SCCM communicates via the Local Interconnect Network (LIN) serial data bus. This is an ultra-low voltage serial data bus that allows the
following components to communicate with the Controller Area Network (CAN) B and C data buses.
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Steering Wheel
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Switches Horn
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Speed Control Switch
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Multi-function Switch
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Tilt/Telescoping Switch (if equipped)
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Steering Angle Sensor (if equipped with Electronic Stability Program (ESP)
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Steering Column Module (SCM)
