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 MANUALSCADILLAC1997SEVILLE SLS V8-4.6L VIN YREPAIR AND DIAGNOSISBODY AND FRAMEBODY CONTROL SYSTEMSBODY CONTROL MODULEDESCRIPTION AND OPERATIONBODY CONTROL SYSTEM CIRCUIT DESCRIPTIONCLASS 2 SERIAL DATA LINE
1997 Cadillac Seville SLS V8-4.6L VIN Y
Class 2 Serial Data Line
1997 Cadillac Seville SLS V8-4.6L VIN YSECTION Class 2 Serial Data Line
Class 2 serial data is transmitted on single wire at an average of 10.4 Kbps (10,400 bits per second). This is only an average because Class 2 uses a Variable Pulse Width modulation to carry data, and depending on the message, it may operate faster or slower. The bus is active at 7.0V nominal and inactive at ground potential. The Class 2 serial data line is tolerant, however, to different levels of ground potential.
RENDER: 1.0x
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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.