Description And Operation: Description
The clockspring for this vehicle is part of the Steering Column Control Module (SCCM) (2) located on the top of the steering column, below the steering wheel. The SCCM also supports the Steering Angle Sensor (SAS), the left (lighting) multifunction switch (1) and the right (wiper) multifunction switch (3). Each of these switches and the circuitry between the switches and the clockspring cannot be separated and are serviced ONLY as a complete assembly with the SCCM . The SAS, clockspring and the multifunction switches are integral to the SCCM.
On the instrument panel side (back side) of the SCCM there are two connector receptacles. The 14-way receptacle at the 6 o'clock position (6) contains the circuits for heated steering wheel (if so equipped) from the Comfort Seat Wheel Module (CSWM) and the Driver AirBag (DAB) from the Occupant Restraint Controller (ORC) module. The 12-way receptacle at the 9 o'clock position (7) contains the circuits for the Local Interface Network (LIN) data bus to the Body Control Module (BCM) and the horn signal to the BCM.
The surface of the rotor hub facing the steering wheel (front side) has a large center hole, three short pigtail wires with connectors and two connector receptacles. The pigtail connectors (9) contain the circuits for the Driver AirBag (DAB). The receptacle at the 9 o'clock position (10) contains the circuits for the LIN data bus to the BCM, the LIN data bus to the SCCM (internal to the SCCM), the horn signal, B(+) with Positive Thermal Coefficient (PTC) and ground. The receptacle at the 3 o'clock position (8) contains the circuits for the heated steering wheel (if so equipped). Both radio control switches are hard wired to the Electronic Vehicle Information Center (EVIC) switch on the left steering wheel spoke, which then uses the LIN data bus to communicate with the BCM.
The clockspring cannot be repaired because it is part of the SCCM. If the clockspring is ineffective, damaged, or if the Driver AirBag (DAB) has been deployed, the SCCM must be replaced. Refer to MODULE, STEERING COLUMN CONTROL (SCCM), REMOVAL AND INSTALLATION .