Test Description

WARNING: This page is about a different car, the 2007 Hummer H2. 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 whether the condition is module, system, or condition related.
4: This step tests if the condition has been corrected or identified as specified in the supporting text.
5: This step test if the air suspension sensors are within the proper range before the relearn procedure is activated.

DTC C0569

Step	Action	Yes	No
Schematic Reference: Air Suspension Schematics
1	Did you perform the Diagnostic System Check - Vehicle?	Go to Step 2	Go to Diagnostic System Check - Vehicle
2	Install a scan tool. Turn ON the ignition, with the engine OFF. With a scan tool, monitor the DTC Information for DTC C0569 in the air suspension module. Does the scan tool indicate that DTC C0569 is current?	Go to Step 4	Go to Step 3
3	Most occurrences of this DTC are caused by not having the vehicle supported at the proper trim height when doing the trim height relearn procedure. Did trim height relearn procedure cause this DTC to set?	Go to Diagnostic Aids	Go to Step 4
4	Use the scan tool in order to clear the DTCs. Activate the trim height relearn procedure after making sure the vehicle is being supported at the correct trim height. Does the DTC reset?	Go to Step 5	System OK
5	If needed, inspect the Right and Left Height Sensor voltage reading with the scan tool to be sure that they read between 2.06-2.88 volts after the Air Suspension system has exhausted. Did you find and correct the condition?	System OK	Go to Step 6
6	Replace the air suspension module. Refer to Control Module References . Check the trim height and recalibrate the air suspension module, if necessary. Did you complete the replacement?	System OK	-