C1251

DTC C1251

Circuit Description
The continuously variable road sensing suspension (CVRSS) calculates normal force and transmits a pulse width modulation (PWM) signal to the electronic brake control module (EBCM) via 2 dedicated data lines, one right, and one left. The EBCM supplies the pull-up voltage. The EBCM uses this information to detect rough road conditions and allows for more The EBCM disables the rough road detection function of the vehicle stability enhancement system (VSES) for the duration of the ignition cycle.
^ The ABS/traction control system (TCS)/VSES remains functional.

Conditions for Clearing the DTC
^ The condition for the DTC is no longer present and the DTC is cleared with a scan tool.
^ The EBCM automatically clears the history DTC when a current DTC is not detected in 100 consecutive drive cycles.

Diagnostic Aids
This DTC is for information only. As an aid to the technician, this DTC indicates that there are no problems in the ABS/TCS system.