Loss of Communication DTC Cross-Reference Chart
When an ECU on the CAN circuit is unable to communicate with other ECUs on the CAN circuit, the other control units will set loss of communication DTCs. Use this chart to find the ECU that is not communicating with the other ECUs on the CAN circuit.
1. Find the Transmitting Control Unit that is in the same row as all of the loss of communication DTCs that you retrieved.
2. Do the input test for the transmitting control unit.
BUS OFF and Internal Error Codes
| DTC Type | Related Unit | ||||||||||||||||||||
| MICU | Gauge Control Module | Climate Control Unit | Ventilated Seat Control Unit/Front Seat Heater Control Unit | Parking and Back-Up Sensor Control Unit | Power Seat Control Unit | Power Window Master Switch | Keyless Access Control Unit | Power Control Unit | Backup Control Unit | Automatic Lighting/Rain Sensor | Automatic Lighting Control Unit | Left Side BSI Radar Unit | Right Side BSI Radar Unit | Second Row Seat Heater Control Unit | Power Tailgate Control Unit | Auto High-Beam Control Unit | Telematics Control Unit | Wireless Charger | Multipurpose Camera Unit | Headlight Leveling Control Unit | |
| BUS OFF | U1280 | U1280 | U1280 | U1280 | U1280 | U1280 | U1280 | U1280 | U1280 | U1280 | U1280 | U1280 | U1280 | U1280 | U1280 | U1280 | U1280 | U1280 | U1280 | U1280 | U1280 |
| ECU (EEPROM) Error | B1002 | U3000-49 | B2602 | B1802 | B1602 | B2352 | B1352 | U3000-49 | B2479 | ||||||||||||
Loss of Communication
| Transmitting Control Unit | Receiving Unit/Loss of Communication DTC | ||||||||||||||||||||
| MICU | Gauge Control Module | Climate Control Unit | Ventilated Seat Control Unit/Front Seat Heater Control Unit | Parking and Back-Up Sensor Control Unit | Power Seat Control Unit | Power Window Master Switch | Keyless Access Control Unit | Power Control Unit | Backup Control Unit | Automatic Lighting/Rain Sensor | Automatic Lighting Control Unit | Left Side BSI Radar Unit | Right Side BSI Radar Unit | Second Row Seat Heater Control Unit | Power Tailgate Control Unit | Auto High-Beam Control Unit | Telematics Control Unit | Wireless Charger | Multipurpose Camera Unit | Headlight Leveling Control Unit | |
| MICU | TX | U1281 | U1281 | U1282/U1281 | U1281 | U1281 | U1281 | U1281 | U1281 | U1281 | U1281 | U1281 | U1281 | U1281 | U1281 | U1281 | U1281 | U1281 | |||
| Gauge Control Module | U128D | TX | U128D | U0155 | U128D | U128D | U128D | U128D | U128D | U128D | U128D | U128D | U128D | U0155/U128D | U128D | U128D | U128D | U0155 | U128D | ||
| Climate Control Unit | TX | U0164 | U0164 | U1064 | |||||||||||||||||
| Ventilated Seat Control Unit | TX | ||||||||||||||||||||
| Parking and Back-Up Sensor Control Unit | U1288 | TX | |||||||||||||||||||
| Power Window Master Switch | U0199 | U0199 | TX | U0199 | U0199 | ||||||||||||||||
| Automatic Lighting/Rain Sensor | TX | ||||||||||||||||||||
| PCM | U0100 | U0100 | U0100 | ||||||||||||||||||
| Multi Purpose Camera Unit | U0104 | TX | |||||||||||||||||||
| TCM | U0101 | U0101 | |||||||||||||||||||
| VSA Modulator-Control Unit | U0122 | U0122 | U0122 | ||||||||||||||||||
| i-VTM Control Unit | U0114 | ||||||||||||||||||||
| Power Tailgate Control Unit | U0230 | TX | |||||||||||||||||||
| Keyless Access/TPMS Control Unit | U0127 | U1286 | |||||||||||||||||||
| Steering Angle Sensor | U0126 | ||||||||||||||||||||
| EPS Control Unit | U0131 | U0131 | |||||||||||||||||||
| SRS Unit | U0151 | ||||||||||||||||||||
| LKAS Control Unit | U1100 | ||||||||||||||||||||
| Ventilated Seat Control Unit | U1290 | ||||||||||||||||||||
| Second Row Seat Heater Control Unit | U129B | TX | |||||||||||||||||||
| Audio-Navigation Unit | U128E | ||||||||||||||||||||
| Left Side BSI Radar Unit | U128F | TX | U128F | ||||||||||||||||||
| Right Side BSI Radar Unit | U1297 | TX | |||||||||||||||||||
TX: Transmitting units do not set loss of communication DTCs.