Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSPONTIAC2007WAVE LT, 4D HATCHBACK, STANDARD, Y4M/MLMREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESDATA COMMUNICATION SYSTEMDIAGNOSTIC INFORMATION AND PROCEDURESSCAN TOOL DOES NOT POWER UPTEST DESCRIPTION
2007 Pontiac Wave LT, 4D Hatchback, Standard, Y4M/MLM
Test Description
2007 Pontiac Wave LT, 4D Hatchback, Standard, Y4M/MLMSECTION Test Description
The numbers below refer to the step numbers on the diagnostic table.
- 1: Fuse F11 supplies power to terminal 16 of the DLC.
- 4: 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 |
|---|---|---|---|
| 1 | Test the battery positive voltage circuit of the data link connector (DLC) for an open or short to ground. Refer to Circuit Testing
and Wiring Repairs
. Did you find and correct the condition? |
Go to Step 5 | Go to Step 2 |
| 2 | Test the ground circuit or the DLC for an open. Refer to Circuit Testing
and Wiring Repairs
. Did you find and correct the condition? |
Go to Step 5 | Go to Step 3 |
| 3 | Inspect for poor connections at the DLC ground terminals and the DLC power terminals at the DLC. Refer to Testing for Intermittent Conditions and Poor Connections
and Connector Repairs
. Did you find and correct the condition? |
Go to Step 5 | 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 Step 5 | - |
| 5 | Does the scan tool power up? | Go to Diagnostic System Check - Vehicle | Go to Step 1 |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.