Diagnostic Fault Information
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.
- Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
- Review Strategy Based Diagnosis for an overview of the diagnostic approach.
- Diagnostic Procedure Instructions provides an overview of each diagnostic category.
Scan Tool Does Not Power Up
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
| Battery Positive Voltage (DLC) | 1 | 1 | - | - |
| Ground (DLC) | - | 1 | - | - |
| 1. Scan Tool Does Not Power Up | ||||