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 SLSREPAIR AND DIAGNOSIS (SINGLE PAGE)ELECTRICALCHARGING SYSTEMSCHARGING SYSTEM - DIAGNOSISDIAGNOSTIC TESTSTEST D: DTC B1982DIAGNOSTIC PROCEDURE
1997 Cadillac Seville SLS
Diagnostic Procedure
1997 Cadillac Seville SLSSECTION Diagnostic Procedure
- Connect scan tool. Turn ignition off. Using scan tool, select DATA LIST, DATA. If voltage displayed on scan tool is 16 volts or more, go to next step. If voltage displayed on scan tool is not 16 volts or more, replace IPC.
- Measure voltage between IPC connector C1, terminal A1 (Orange wire) and ground. See Figure. If voltage is 16 volts or more, replace generator. If voltage is not 16 volts or more, replace IPC.
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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.