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 MANUALSCADILLAC1993DEVILLE BASE, 4D SEDANREPAIR AND DIAGNOSISBODY & FRAMESEATS - POWER MEMORYCOMPONENT TESTSSEAT MEMORY MODULE CONNECTOR C1 PIN-OUT (W/O SIXTY SPECIAL SEAT)
1993 Cadillac DeVille Base, 4D Sedan
Seat Memory Module Connector C1 Pin-Out (W/O Sixty Special Seat)
1993 Cadillac DeVille Base, 4D SedanSECTION Seat Memory Module Connector C1 Pin-Out (W/O Sixty Special Seat)
- Disconnect the Seat Memory Module Connector C1. See WIRING DIAGRAMS .
- Measure the resistance (less than 5ohm) of Seat Memory Module Connector C1 terminal B to ground. See Fig 1 . For appropriate wiring diagram, see WIRING DIAGRAMS . If there is no resistance, check the BLK (152) wire for an open. Check the in-line connectors for proper terminal contact. See TERMINAL CONTACT CHECK under TROUBLESHOOTING.
- Measure the battery voltage of Seat Memory Module Connector C1 terminal A; there should be voltage at all times. If there is not battery voltage at all times, check the ORN/BLK (60) wire for an open or short to ground. Check the in-line connectors for proper terminal contact. See TERMINAL CONTACT CHECK under TROUBLESHOOTING.
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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.