Diagnostic Instructions
DTC Descriptors
DTC C0718 00: Level Control Compressor 2 Over Temperature
Circuit Description
The air suspension control module monitors the run time and temperature of the compressor. If the compressor has run excessively and/or the operating temperature increases above the normal limits, the air suspension control module switches OFF the compressor
relay.
Conditions for Running the DTC
| • | Battery voltage is between 9-16 volts. |
Conditions for Setting the DTC
The air suspension control module detects a compressor 2 overheating condition during air suspension compressor operation.
Action Taken When the DTC Sets
| • | The air suspension system will be inoperative. |
| • | The SERVICE SUSPENSION SYSTEM message will be displayed. |
Conditions for Clearing the MIL/DTC
| • | When the fault is no longer present, DTC C0718 will change from a current DTC to a history DTC on the next ignition cycle. |
| • | DTC C0718 will be cleared from history after 50 ignition cycles. |
Reference Information
Schematic Reference
Air Suspension Schematics
Connector End View Reference
Component Connector End Views
Description and Operation
Air Suspension Description and Operation
Electrical Information Reference
Scan Tool Reference
Control Module References
for Scan Tool Information
Circuit/System Verification
- Verify that there are no air leaks in the system.
| ⇒ | If a leak is found, repair or replace the leaking component as necessary. |
- Ignition ON, verify that the air suspension compressor is not mechanically binding.
| ⇒ | If a mechanical condition is found, replace the air suspension compressor. |
- Observe the scan tool Compressor 2 Temperature parameter, the parameter should display OK.
| ⇒ | If not the specified value, test or replace the air suspension compressor. |
- Clear the DTC with the scan tool and run the air suspension compressor with the scan tool output control. The DTC should not reset.
| ⇒ | If DTC C0718 resets, replace the air suspension control module. |
Repair Instructions
Perform the
Diagnostic Repair Verification
after completing the diagnostic procedure.
