Action Taken When the DTC Sets

Depending upon which of the internal functions are affected by the fault condition, the ESC module will take one of two sets of actions:

• If the fault condition allows continued output operation, the system will enter a Speed Dependent Damping mode, in which all four corners of the vehicle are concurrently driven by a fixed PWM duty cycle, which increases as a function of the vehicle speed. The SERVICE SUSPENSION SYS will be displayed.
• If the fault is more severe, the control module will disable ALL dampers by commanding 0 % PWM duty cycle, disabling the damper switched battery circuit, and sending a message to the Powertrain Control Module (PCM) to limit vehicle speed. The SERVICE SUSPENSION SYS and SPEED LIMITED TO XXX will be displayed.