Keyless Access Control Unit DTCS
KEYLESS ACCESS CONTROL UNIT DIAGNOSTIC TROUBLE CODE (DTC) INDENTIFICATION
| DTC | Description | DTC type |
|---|---|---|
| B1601 | Keyless Access Control Unit internal (CPU) error | Internal error |
| B1602 | Keyless Access Control Unit internal (EEPROM) error | Internal error |
| B1627 - Refer to: DTC Troubleshooting: B1627 (2017 2018 2019 2020) | RF1 Unit disconnected (2-way transceiver or RF antenna disconnected) | Signal error |
| B1632 | MTR CONT signal error | Signal error |
| B1640 | RF1 antenna not connected or malfunction (Internal RF antenna malfunction) | Signal error |
| B1641 - Refer to: DTC Troubleshooting: B1641 (2017 2018 2019 2020), . | RF2 antenna not connected or malfunction (2-way transceiver or RF antenna not connected or malfunction) | Signal error |
| B1645 | Driver's Door LF Antenna circuit short (Left-Front LF Antenna circuit short) | Signal error |
| B1646 | Driver's Door LF Antenna circuit open (Left-Front LF Antenna circuit open) | Signal error |
| B1647 | Passenger's Door LF Antenna circuit short (Right-Front LF Antenna circuit short) | Signal error |
| B1648 | Passenger's Door LF Antenna circuit open (Right-Front LF Antenna circuit open) | Signal error |
| B1649 | Driver Side Rear Passenger Door Antenna circuit short (Left-Rear LF Antenna circuit short) | Signal error |
| B1650 | Driver Side Rear Passenger Door Antenna circuit open (Left-Rear LF Antenna circuit open) | Signal error |
| B1651 | Passenger side rear passenger door antenna circuit short (Right-Rear LF Antenna circuit short) | Signal error |
| B1652 | Passenger side rear passenger door antenna circuit open (Right-Rear LF Antenna circuit open) | Signal error |
| B1659 | Front Interior LF Antenna circuit short | Signal error |
| B1660 | Front Interior LF Antenna circuit open | Signal error |
| B1663 - Refer to: DTC Troubleshooting: B1663 (2017 2018 2019 2020), . | Rear Interior LF Antenna circuit short | Signal error |
| B1664 - Refer to: DTC Troubleshooting: B1664 (2017 2018 2019 2020) | Rear Interior LF Antenna circuit open | Signal error |
| U1280 | Keyless Access Control Unit communication Bus Line Error (BUS-OFF) | Loss of communication |
| U1281 - Refer to: DTC Troubleshooting: U1281 (2017 2018 2019 2020) | Keyless Access Control Unit lost communication with MICU | Loss of communication |
| U128D - Refer to: DTC Troubleshooting: U128D (2017 2018 2019 2020), . | Keyless Access Control Unit lost communication with Gauge Control Module | Loss of communication |