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.
2001 Cadillac DeVille BaseFACTORY OEM SERVICE PROCEDURE
Body Control Module DTCS
BODY CONTROL MODULE DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description |
|---|---|
| B1000 | Loss of KDD Main Control Head |
| B1000 | ECU Malfunction |
| B1004 | Malfunction In Malfunction In Keep Alive Memory |
| 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 | Malfunction In Device Power Moding |
| B1513 | Low Charging System Voltage |
| B1514 | High Charging System Voltage |
| B1556 | IPC EEPROM Odometer Configuration Error |
| B1656 | EEPROM Write Error |
| B1658 | EEPROM Checksum Error |
| U1000 | Loss Of Module Communications |
| U1001 | Loss Of Module Communications |
| U1016 | Loss Of Communications With PCM |
| U1064 | Loss Of Communications With DIM |
| U1065 | Loss Of Communications With IPM |
| U1066 | Loss Of Communications With RIM |
| U1160 | Loss Of Communications With DDM |
| U1161 | Loss Of Communications With PDM |
| U1162 | Loss Of Communications With LRDM |
| U1163 | Loss Of Communications With RRDM |
| U1164 | Loss Of Communications With DDS |
| U1254 | Loss Of Communications With XXX |
| U1255 | Loss Of Module Communications |
| U1300 | Class 2 Short To Ground |
| U1301 | Class 2 Short To Battery |
| U1305 | Voltage Is High Or Low Or No Valid Messages In Class 2 Serial Data Circuit |
| U1500 | On-Star® Status LED is Illuminated & No Communication Between VCU & VIU |
| U2150 | No Communication With NDH When Queried By NAV |
| U2151 | No Communication With NAV When Queried By NDH |
| U2153 | No Communication With VICS When Queried By NAV |
Factory Service Tools
Use the Manual With the Right Hardware
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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.