Usually no: clearing removes freeze frame, resets monitors, and can erase the operating context that makes an intermittent fault diagnosable.
Why this matters
A good answer separates immediate safety, evidence preservation, and the next useful test.
Evidence to capture first
- Stored, pending, and permanent codes
- Freeze frame and failure records
- Monitor readiness and recent battery-disconnect history
A disciplined path
- Save a complete scan
- Record code status and conditions
- Perform non-destructive checks
- Clear only when the test plan or completed repair requires it
Decision point
Choose the action that preserves evidence and keeps the vehicle safe; avoid clearing, disconnecting, or replacing parts just to see what changes.
Source desk
Use current model-specific service information for specifications, connector locations, disabling procedures, and tightening values. The following public resources support the broader safety or system context used in this guide.
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