DTC C0575, C0580, C0585, or C0590
Diagnostic Instructions
DTC Descriptors
| DTC C0575 02: Left Front Damper Actuator
Circuit Short to Ground |
| DTC C0575 04: Left Front Damper Actuator
Circuit Open |
| DTC C0575 0F: Left Front Damper Actuator
Circuit Signal Erratic |
| DTC C0580 02: Right Front Damper Actuator
Circuit Short to Ground |
| DTC C0580 04: Right Front Damper Actuator
Circuit Open |
| DTC C0580 0F: Right Front Damper Actuator
Circuit Signal Erratic |
| DTC C0585 02: Left Rear Damper Actuator
Circuit Short to Ground |
| 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
|
Short to Ground
|
Open/High Resistance
|
Short to Voltage
|
Signal Performance
|
Left Front Damper Actuator Control High
|
C0575 02
|
C0575 04
|
C0575 02
|
C0575 0F
|
Right Front Damper Actuator Control High
|
C0580 02
|
C0580 04
|
C0580 02
|
C0580 0F
|
Left Rear Damper Actuator Control High
|
C0585 02
|
C0585 04
|
C0585 02
|
C0585 0F
|
Right Rear Damper Actuator Control High
|
C0590 02
|
C0590 04
|
C0590 02
|
C0590 0F
|
Left Front Damper Actuator Control Low
|
C0575 02
|
C0575 04
|
C0575 04
|
C0575 0F
|
Right Front Damper Actuator Control Low
|
C0580 02
|
C0580 04
|
C0580 04
|
C0580 0F
|
Left Rear Damper Actuator Control Low
|
C0585 02
|
C0585 04
|
C0585 04
|
C0585 0F
|
Right Rear Damper Actuator Control Low
|
C0590 02
|
C0590 04
|
C0590 04
|
C0590 0F
|
|
| |
Circuit/System Description
The suspension control module commands variable levels of
current to each shock absorber/damper 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
Connector End View Reference
Component Connector End Views
Description and Operation
Electronic Suspension Control Description and Operation
Electrical Information Reference
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Verification
Ignition ON, command the Damper Actuator Increase and Decrease
with a scan tool while observing the Damper Actuator Command
parameter. The reading should vary between 0-1 000 mA. Listen/feel
the damper actuator. The component should activate when changing
between the commanded states.
Circuit/System Testing
| 1. |
Ignition OFF, disconnect the
harness connector at the appropriate damper actuator. |
| 2. |
Ignition ON, test for 2.5-3.5
V between the circuit terminal listed below and ground:
|
| |
• |
Front left damper actuator
control circuit terminal 5 |
| |
• |
Front right damper actuator
control circuit terminal 5 |
| |
• |
Rear left damper actuator
control circuit terminal B |
| |
• |
Rear right damper actuator
control circuit terminal B |
| ⇒ |
If greater than the specified value, test the
control circuit for a short to voltage. If the circuit tests
normal, replace the K19 Suspension Control Module. |
| ⇒ |
If less than the specified value, test the control
circuit for a short to ground or an open/high resistance. If the
circuit tests normal, replace the K19 Suspension Control
Module. |
| 3. |
Ignition ON, test for 9.5-10.5
V between the circuit terminal listed below and ground:
|
| |
• |
Front left damper actuator
control circuit terminal 6 |
| |
• |
Front right damper actuator
control circuit terminal 6 |
| |
• |
Rear left damper actuator
control circuit terminal A |
| |
• |
Rear right damper actuator
control circuit terminal A |
| ⇒ |
If greater than the specified value, test the
control circuit for a short to voltage. If the circuit tests
normal, replace the K19 Suspension Control Module. |
| ⇒ |
If less than the specified value, test the control
circuit for a short to ground or an open/high resistance. If the
circuit tests normal, replace the K19 Suspension Control
Module. |
| 4. |
If all circuits test normal,
test or replace the damper actuator and verify the DTC does not
reset. |
| ⇒ |
If the DTC resets, replace the K19 Suspension
Control Module. |
Component Testing
Static Test
| 1. |
Ignition OFF, disconnect the
harness connector at the appropriate damper actuator. |
| 2. |
Test for 2-3 Ω between
the control terminals 1 and 2 at the rear damper actuators.
|
| 3. |
Test for 2-3 Ω between
the control terminals 5 and 6 at the front damper actuators.
|
| ⇒ |
If not within the specified range, replace the
damper actuator. |
Repair Instructions
Perform the
Diagnostic Repair Verification after completing the diagnostic
procedure.
|
