2010 Cadillac Truck SRX FWD V6-3.0L Page 845
DTC C0585 04
- Left Rear Damper Actuator Circuit Open
DTC C0585 0F
- Left Rear Damper Actuator Circuit Signal Erratic
DTC C0590 02
- Right Rear Damper Actuator Circuit Short to Ground
DTC C0590 04
- Right Rear Damper Actuator Circuit Open
DTC C0590 0F
- Right Rear Damper Actuator Circuit Signal Erratic
Diagnostic Fault Information
Circuit/System Description
The suspension control module commands variable levels of current to each shock absorber actuator in response to rough road, braking or abrupt
steering maneuver driving conditions. The current variation is performed by pulse width modulation (PWM) of the system voltage. The suspension
control module continuously measures the actual current of each actuator. When a deviation between commanded and actual current is detected, a
DTC is set.
Conditions for Running the DTC
System voltage is between 9-16 V.
Conditions for Setting the DTC
C0575 02, C0580 02, C0585 02, and C0590 02
* A short to voltage or short to ground on the control high circuit is detected.
* A short to ground on the control low circuit is detected.
C0575 04, C0580 04, C0585 04, and C0590 04
* An open circuit on the control high or control low circuit is detected.
* A short to voltage on the control low circuit is detected.
C0575 0F, C0580 0F, C0585 0F, and C0590 0F
An erratic current on the actuator circuit is detected.
Action Taken When the DTC Sets
* The electronic suspension control is disabled for the duration of the ignition cycle.
* The driver information center displays the SERVICE SUSPENSION SYSTEM message.
Conditions for Clearing the DTC
* A present DTC will clear on the next consecutive malfunction-free ignition cycle.
* A history DTC will clear after 41 consecutive malfunction-free ignition cycles.
Reference Information
Schematic Reference
Electronic Suspension Control Schematics (See: Steering and Suspension/Suspension/Suspension Control ( Automatic - Electronic
)/Diagrams/Electrical Diagrams)
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