C0577, C0582, C0587 or C0592
WARNING: This page is about a different car, the 2003 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
The following condition may cause an intermittent malfunction to occur:
- There is an intermittent short to ground on the actuator control circuit.
- There is an internal shock absorber actuator short.
- If the conditions for a DTC C0577, C0582, C0587 or C0592 are current, the ESC module will disable all four actuators by commanding 0% duty cycle, and the RTD relay. The vehicle will experience a soft ride condition on the side of the vehicle.
- The RTD relay provides supply voltage to all four shock absorber actuators; therefore, multiple shock absorber actuator DTCs which are open or short to ground may also be stored along with a DTC C0550. Always diagnose a DTC C0550 first before attempting to diagnose multiple shock absorber actuator DTCs.
- If a short to ground is present on the actuator supply circuit, the RTD fuse will open and DTC C0550 may set.
- If the DTC is a history DTC, the problem may be intermittent. Using a scan tool, cycle the shock absorber actuator while moving the wiring and the connectors. This can often cause the malfunction to occur.