Test Description
WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
The number below refers to the step number on the diagnostic table.
- 4: If the battery positive voltage and ground circuits of the DLC are functioning properly, the malfunction must be due to the scan tool.
Scan Tool Does Not Power Up
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Data Communication Schematics Connector End View Reference: Data Communication Connector End Views |
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| 1 | Test the battery positive voltage circuit of the data link connector (DLC) for an open or a short to ground. Refer to the following: Did you find and correct the condition? |
Go to Diagnostic System Check - Vehicle | Go to Step 2 |
| 2 | Test the ground circuits of the DLC for an open or high resistance. Refer to the following: Did you find and correct the condition? |
Go to Diagnostic System Check - Vehicle | Go to Step 3 |
| 3 | Inspect for poor connections and terminal tension at the DLC. Refer to the following: Did you find and correct the condition? |
Go to Diagnostic System Check - Vehicle | Go to Step 4 |
| 4 | The scan tool may be malfunctioning. Refer to the scan tool user guide. Did you obtain a properly operating scan tool? |
Go to Diagnostic System Check - Vehicle | - |