Conditions for Setting the DTC

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Any of the following conditions may cause the DTC to set.

The steering angle calculated by the EBCM does not correlate with the steering angle information which is being transmitted on the serial data line.
When driven forward in a straight line, the centered steering angle differs by more than 30 degrees from the centered steering angle when the sensors are initialized.
The EBCM detects an erratic signal from steering wheel position signal A or signal B.
The BCM detects an invalid steering wheel position sensor signal, sets a DTC, and therefore, cannot transmit valid serial data information. The BCM sends a serial data message to the EBCM, which causes the DTC to set.
The EBCM detects an open or shorted steering wheel position signal A or signal B, after having received a valid signal during the same ignition.