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 | Relay Control Module | Climate Control Unit | Parking and Back-Up Sensor Control Unit | Power Seat Control Unit | Power Window Master Switch | Keyless Access/TPMS Control Unit | Power Control Unit | Power Tailgate Control Unit | Rear MICU | |
| BUS OFF | U1280 | U1280 | U1280 | U1280 | U1280 | U1280 | U1280 | U1280 | U1280 | U1280 | U1280 |
| ECU (EEPROM) Error | B1002 | U3000-49 | B1052 | B2602 | B1602 | B12A1 | B1952 | ||||
| DTC Type | Related Unit | |||||||||
| HandsFreeLink Control Unit | Telematics Control Unit | Backup Control Unit | Left side BSI Radar Unit | Right side BSI Radar Unit | Front seat heater control unit | Second row seat heater control unit | Multi view control unit | Automatic Lighting/Rain Sensor | Headlight Leveling Control Unit | |
| BUS OFF | U1280 | U1280 | U1280 | U1280 | U1280 | U1280 | U1280 | U1280 | U1280 | U1280 |
| ECU (EEPROM) Error | B1902 | B2352 | B2479 | |||||||
Loss of Communication
| Transmitting Control Unit | Receiving Unit/Loss of Communication DTC | ||||||||||
| MICU | Rear MICU | Gauge Control Module | Relay Control Module | Climate Control Unit | Parking and Back-Up Sensor Control Unit | Power Seat Control Unit | Power Window Master Switch | Keyless Access/TPMS Control Unit | Power Control Unit | Backup Control Unit | |
| MICU | TX | U1281 | U1281 | U1281 | B2969 | U1282 | U1281 | U1281 | U1281 | U1281 | |
| Rear MICU | U1292 | TX | |||||||||
| Gauge Control Module | U128D | U128D | TX | U128D | U128D | U0155 | U128D | U128D | U128D | U128D | U128D |
| Relay Control Module | U1291 | U1291 | TX | U1291 | |||||||
| Climate Control Unit | TX | U0164 | |||||||||
| Power Window Master Switch | U0199 | U0199 | TX | U0199 | |||||||
| PCM | U0100 | U0100 | |||||||||
| TCM | U0101 | B12F3 | |||||||||
| Multipurpose Camera Unit | U0104 | ||||||||||
| Adaptive Cruise Control Unit | U0104 | ||||||||||
| VSA Modulator-Control Unit | U0122 | U0122 | |||||||||
| Keyless access/TPMS Control Unit | U0127 | TX | |||||||||
| EPS Control Unit | U0131 | ||||||||||
| SRS Unit | U0151 | ||||||||||
| LKAS Control Unit | U1100 | ||||||||||
| Left side BSI Radar Unit | U1281 | U128F | |||||||||
| Right side BSI Radar Unit | U1281 | U128D | |||||||||
| Parking and Back-Up Sensor Control Unit | U1288 | ||||||||||
| Power Tailgate Control Unit | U0230 |
| Transmitting Control Unit | Receiving Unit/Loss of Communication DTC | ||||||||
| Power Tailgate Control Unit | Rear MICU | Telematics Control Unit | Left side BSI Radar Unit | Right side BSI Radar Unit | Front seat heater control unit | Second row seat heater control unit | Multi view control unit | Headlight Leveling Control Unit | |
| MICU | U1281 | U1281 | U1281 | U1281 | U1281 | U1281 | U1281 | ||
| Rear MICU | U1292 | TX | |||||||
| Gauge Control Module | U0155 | U128D | U128D | U128D | U128D | U128D | |||
| Relay Control Module | U1291 | ||||||||
| Climate Control Unit | U1064 | U1064 | |||||||
| Power Window Master Switch | |||||||||
| PCM | |||||||||
| TCM | |||||||||
| Multipurpose Camera Unit | |||||||||
| Adaptive Cruise Control Unit | |||||||||
| VSA Modulator-Control Unit | |||||||||
| Keyless Access/TPMS Control Unit | |||||||||
| EPS Control Unit | |||||||||
| SRS Unit | |||||||||
| LKAS Control Unit | |||||||||
| Left side BSI Radar Unit | TX | U1297 | |||||||
| Right side BSI Radar Unit | U128F | TX | |||||||
| Automatic Lighting/Rain Sensor | U1281 | U128D | |||||||
| Power Tailgate Control Unit | |||||||||
TX: Transmitting units do not set loss of communication DTCs.