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.
Resistance of the Air Suspension Sensor at room temperature and normal vehicle height is approximately 87Ω. The resistance range of the sensor is 75 to 100 Ω.
DTC 002
| Step | Action | Value(s) | 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 10 | Go to Step 4 |
| 4 | Test the air suspension return circuit for an open, short to voltage and a short to ground. Refer to Testing for Continuity
, Testing for a Short to Voltage
and Testing for Short to Ground
in Wiring Systems. Did you find and correct the condition? |
- | Go to Step 10 | Go to Step 5 |
| 5 | Measure the resistance of the air suspension sensor. Does the resistance measure within the specified value? |
75-100 Ω | Go to Step 6 | Go to Step 9 |
| 6 | Inspect for poor connections at the harness connector of the left air suspension sensor. Did you find and correct the condition? |
- | Go to Step 10 | Go to Step 7 |
| 7 | Inspect for poor connections at the harness connector of the Air Suspension Compressor Assembly. Did you find and correct the condition? |
- | Go to Step 10 | Go to Step 8 |
| 8 | Replace the Air Suspension Compressor Assembly. Refer to Air Spring Compressor Replacement Did you complete the replacement? |
- | Go to Step 10 | - |
| 9 | Replace the left air suspension sensor. Refer to Air Spring Leveling Sensor Replacement Did you complete the replacement? |
- | Go to Step 10 | - |
| 10 | Operate the system in order to verify the repair. Did you correct the condition? |
- | System OK | Go to Step 3 |