Diagnostic Aids
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
The Air Suspension Compressor Assembly will set a DTC 001 when any of these conditions are present:
- A checksum error in EEPROM is present.
- The compressor is shorted or open.
- The compressor solenoids are shorted or open.
DTC 001
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Suspension Controls Schematics | |||
| 1 | Did you perform the Air Suspension Diagnostic System Check? | Go to Step 2 | Go to Diagnostic System Check - Air Suspension |
| 2 | Verify the fault is present. Does the system operate normally? |
Go to Testing for Intermittent Conditions and Poor Connections in wiring systems. | Go to Step 3 |
| 3 |
|
Go to Step 4 | Go to Step 5 |
| 4 | Replace the Air Suspension Compressor Assembly. Refer to Air Spring Compressor Replacement Did you complete the replacement? |
Go to Step 5 | - |
| 5 | Operate the system in order to verify the repair. Did you correct the condition? |
System OK | Go to Diagnostic System Check - Air Suspension |