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 CONNECTORS PIN-OUT (W/ SIXTY SPECIAL SEAT)
1993 Cadillac DeVille Base, 4D Sedan
Seat Memory Module Connectors Pin-Out (W/ Sixty Special Seat)
1993 Cadillac DeVille Base, 4D SedanSECTION Seat Memory Module Connectors Pin-Out (W/ Sixty Special Seat)
- Disconnect Seat Memory Module Connectors C1, C2 and C3. See Figure and Figure .
- Measure the resistance of Seat Memory Module Connector C1 terminal A to ground. See Fig 1 . If the resistance is not less than 5ohm, 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 B. If there is not battery voltage at all times, check the ORN/BLK (60) wire for an open or check the in-line connectors for proper terminal contact. See TERMINAL CONTACT CHECK under TROUBLESHOOTING.
- Perform a measurements test on Seat Memory Module Connector C2. See Fig 2 .
- Perform a measurements test on Seat Memory Module Connector C3. See Fig 3 .
- If all of the measurements are correct, replace the Seat Memory Module. See MEMORY SEAT MODULE (FISHER SYSTEM) under REMOVAL & INSTALLATION.
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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.