Test Description

WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers on the diagnostic table.

3: This step tests for short to ground and short to B+ on the control circuit.
4: This step tests for continuity from the ESC module on the control circuit and the low reference circuit.

DTC C0577, C0579, C0582, C0584, C0587, C0589, C0592, or C0594

Step	Action	Value(s)	Yes	No
Schematic Reference: Suspension Controls Schematics Connector End View Reference: Suspension Controls Connector End Views
1	Did you perform the Electronic Suspension Control Diagnostic System Check?	-	Go to Step 2	Go to Diagnostic System Check - Electronic Suspension Control
2	Disconnect the shock absorber connector. Measure the resistance of the shock absorber actuator. Does the resistance measure within the specified value?	0.5-2.0 Ω	Go to Step 3	Go to Step 07
3	Test the damper control circuit of the actuator for a short to ground and short to battery. Refer to Circuit Testing an Wiring Repairs in Wiring Systems. Did you find and correct the condition?	-	Go to Step 9	Go to Step 4
4	Disconnect the ESC module. Check continuity from the ESC module to the damper actuator connector on both the control circuit and the reference low circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	-	Go to Step 9	Go to Step 5
5	Inspect for poor connections at the actuator. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition?	-	Go to Step 9	Go to Step 6
6	Inspect for poor connections at the harness connector to the ESC module. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition?	-	Go to Step 9	Go to Step 8
7	Replace the applicable shock absorber. Refer to Shock Absorber Replacement (w/o F55) or Shock Absorber Replacement (W/F55) in Front Suspension or Shock Absorber Replacement (W/O F55) or Shock Absorber Replacement (W/F55) in Rear Suspension. Did you complete the replacement?	-	Go to Step 9	-
8	Replace the ESC module. Refer to Electronic Suspension Control Module Replacement . Did you complete the replacement?	-	Go to Step 9	-
9	Use the scan tool in order to clear the DTCs. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text. Does the DTC reset?	-	Go to Step 2	System OK