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 DeVille BaseFACTORY OEM SERVICE PROCEDURE
Body Control Module DTCS
BODY CONTROL SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | ||
|---|---|---|---|
| B1000 | ECU Malfunction | ||
| B1004 | Keep Alive Memory (KAM) | ||
| B1007 | EEPROM Write Error | ||
| B1009 | EEPROM Checksum Error | ||
| B1013 | ROM Checksum Error | ||
| B1014 | Program ROM Checksum Error | ||
| B1327 | Device Power Circuit Low | ||
| B1328 | Device Power Circuit High | ||
| B1390 | Battery Voltage Sense Failure | ||
| B1422 | Device Power Moding Malfunction | ||
| B1656 | EEPROM Write Error | ||
| B1658 | EEPROM Checksum Error | ||
| U1000 (1) | Loss Of Communications | ||
| U1016 (1) | Loss Of Communications With PCM | ||
| U1064 (1) | Loss Of Communications With DIM | ||
| U1065 (1) | Loss Of Communications With IPM | ||
| U1066 (1) | Loss Of Communications With RIM | ||
| U1160 (1) | Loss Of Communications With DDM | ||
| U1161 (1) | Loss Of Communications With PDM | ||
| U1162 (1) | Loss Of Communications With LRDM | ||
| U1163 (1) | Loss Of Communications With RRDM | ||
| U1164 (1) | Loss Of Communications With DDS | ||
| U1300 (1) | Class 2 Short To Ground | ||
| U1301 (1) | Class 2 Short To Battery | ||
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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.
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