Keyless Access Control Unit (Body Control Module) DTCS
NOTE:
Record all DTCs, and sort them by DTC type using the DTC troubleshooting index, then troubleshoot the DTC (s) in this order:
- Internal error DTCs
- Loss of communication DTCs
- Signal error DTCs
- Receiving malfunction information DTCs
| DTC | Description | DTC type |
|---|---|---|
| B1002 | BCM internal error (EEPROM error) | Internal error |
| B1003 | BCM Update error | Internal error |
| DTC | Description | DTC type |
|---|---|---|
| B1601 | Keyless access control unit internal (CPU) error | Internal error |
| B1602 | BCM Internal Error (EEPROM Error) | Internal error |
| B1632 | MTR CONT Signal Error | Signal error |
| B1640 | RF1 antenna not connected or malfunction | Signal error |
| B1645 | Driver's Door LF Antenna Circuit Short | Signal error |
| B1646 | Driver's Door LF Antenna Circuit Open | Signal error |
| B1647 | Passenger's Door LF Antenna Circuit Short | Signal error |
| B1648 | Passenger's Door LF Antenna Circuit Open | Signal error |
| B1657 | TRUNK/TAILGATE/REAR BUMPER ANTENNA CIRCUIT SHORTED | Signal error |
| B1658 | Trunk/Tailgate/Rear Bumper LF Antenna Circuit Open | Signal error |
| B1659 | Front Interior LF Antenna Circuit Short | Signal error |
| B1660 | Front Interior LF Antenna Circuit Open | Signal error |
| B1661 | MIDDLE INTERIOR ANTENNA CIRCUIT SHORTED | Signal error |
| B1662 | MIDDLE INTERIOR ANTENNA CIRCUIT OPENED | Signal error |
| B1663 - Refer to: DTC Troubleshooting: B1663 (4-door) or DTC Troubleshooting: B1663 (5-door) | Rear Interior LF Antenna Circuit Short | Signal error |
| B1664 - Refer to: DTC Troubleshooting: B1664 (4-door) or DTC Troubleshooting: B1664 (5-door) | Rear Interior LF Antenna Circuit Open | Signal error |
| B1667 | Rear shelf LF antenna circuit short | Signal error |
| B1668 | Rear shelf LF antenna circuit open | Signal error |
| U1280 | B-CAN communication bus line error (BUS-OFF) | Loss of communication |
| U1281 | BCM lost communication with BCM/MICU | Loss of communication |
| U128D | BCM lost communication with gauge control module | Loss of communication |