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 MANUALSCADILLAC1999SEVILLE SLS V8-4.6L VIN YREPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGTESTING AND INSPECTIONSCAN TOOL TESTING AND PROCEDURESSCAN TOOL DISPLAYED INPUT/OUTPUT STATUS
1999 Cadillac Seville SLS V8-4.6L VIN Y
Scan Tool Displayed Input/Output Status
1999 Cadillac Seville SLS V8-4.6L VIN YSECTION Scan Tool Displayed Input/Output Status
Displayed Input/Output Status
The Scan Tool also displays the module input/output status. Select the module input/output status display in order to display the data and determine if the switched inputs/outputs can be properly interpreted. The display also indicates if the input/output has changed states. For example, when a door is closed, the Scan Tool displays the input status of the door ajar switch as INACTIVE. When the door is open, the scan tool reads ACTIVE. Use this kind of information when diagnosing a malfunction associated with a particular module input or an input that is shared with another system.
The Scan Tool also displays the module input/output status. Select the module input/output status display in order to display the data and determine if the switched inputs/outputs can be properly interpreted. The display also indicates if the input/output has changed states. For example, when a door is closed, the Scan Tool displays the input status of the door ajar switch as INACTIVE. When the door is open, the scan tool reads ACTIVE. Use this kind of information when diagnosing a malfunction associated with a particular module input or an input that is shared with another system.
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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.