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.
2000 Cadillac Eldorado ESCFACTORY OEM SERVICE PROCEDURE
Memory Systems
- Description
- Operation
- Component Locations
- Trouble Shooting
- Self-Diagnostic System
- Diagnostic Tests
- Notes
- DTC B0846: 5-Volt Reference Out Of Range
- DTC B0856: Battery 2 Out Of Range
- DTC B1656: EEPROM Write Error (Memory Mirror Module)
- DTC B1656: EEPROM Write Error (Memory Seat Module)
- DTC B1658: EEPROM Checksum Error (Memory Mirror Module)
- DTC B1658: EEPROM Checksum Error (Memory Seat Module)
- DTC B1982: Battery/Source Voltage High (Memory Mirror Module)
- DTC B1982: Source/Battery Voltage High (Memory Seat Module)
- DTC B1983: Battery/Source Voltage Low (Memory Mirror Module)
- DTC B1983: Source/Battery Voltage Low (Memory Seat Module)
- DTC B2101: Recline Aft Switch Failed, DTC B2102: Recline Forward Switch Failed, DTC B2103: Rear Vertical Down Switch Failed, DTC B2104: Rear Vertical Up Switch Failed, DTC B2105: Horizontal Aft Switch Failed, DTC B2106: Horizontal Forward Switch Failed, DTC B2107: Front Vertical Down Switch Failed Or DTC B2108: Front Vertical Up Switch Failed
- DTC B2109: Lumbar Aft (In) Switch Failed Or DTC B2110: Lumbar Forward (Out) Switch Failed
- DTC B2111: Lumbar Down Switch Failed (Al2) Or DTC B2112: Lumbar Up Switch Failed (Al2)
- DTC B2115: Recline Sensor Failed, DTC B2116: Rear Vertical Sensor Failed, DTC B2117: Horizontal Sensor Failed, DTC B2118: Front Vertical Sensor Failed, DTC B2119: Lumbar Forward/Aft Sensor Failed Or DTC B2120: Lumbar Up/Down Sensor Failed (Al2)
- DTC B2130: Memory 1 Key Malfunction, DTC B2131: Memory 2 Key Malfunction, DTC B2132: Memory Exit Key Malfunction Or DTC B2133: Memory Set Key Malfunction
- DTC B2140: Mirror Up Switch Malfunction, DTC B2141: Mirror Down Switch Malfunction, DTC B2142: Mirror Left Switch Malfunction Or DTC B2143: Mirror Right Switch Malfunction
- DTC B2144: Driver Mirror Vertical Sensor Short To Ground, DTC B2146: Driver Mirror Horizontal Sensor Short To Ground, DTC B2148: Passenger Mirror Vertical Sensor Short To Ground Or DTC B2150: Passenger Mirror Horizontal Sensor Short To Ground
- DTC B2145: Driver Mirror Vertical Sensor Short To Battery, DTC B2147: Driver Mirror Horizontal Sensor Short To Battery, DTC B2149: Passenger Mirror Vertical Sensor Short To Battery Or DTC B2151: Passenger Mirror Horizontal Sensor Short To Battery
- System Tests
- Notes
- Test No. 1: Power Seat Inoperative
- Test No. 2: Power Seat Inoperative In One Direction
- Test No. 3: Left Lumbar Support Inoperative
- Test No. 4: Left Lumbar Support Does Not Move In Or Out
- Test No. 5: Left Lumbar Support Does Not Move Up Or Down
- Test No. 6: Both Power Mirrors Inoperative
- Test No. 7: Both Power Mirrors Memory Inoperative In Any Direction
- Test No. 8: Left Mirror Does Not Move Up & Down
- Test No. 9: Left Mirror Does Not Move Left & Right
- Test No. 10: Right Mirror Does Not Move Up & Down
- Test No. 11: Right Mirror Does Not Move Left & Right
- Test No. 12: Mirror Memory Function Switch Inoperative
- Test No. 13: Parallel Park Mode Inoperative
- Removal & Installation
- Wiring Diagrams
Factory Service Tools
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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.