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 | Power Control Unit | Power Window Master Switch | Gauge Control Module | Climate Control Unit | Keyless Access Control Unit | Backup Control Unit | |
| BUS OFF | U1280 | U1280 | U1280 | U1280 | U1280 | U1280 | U1280 |
| ECU (EEPROM) Error | B1002 | B12A1 | U3000-49 | B1602 | |||
| DTC Type | Related Unit | ||||
|---|---|---|---|---|---|
| Immobilizer-Keyless Control Unit | Power Seat Control Unit | Power Tailgate Control Unit | Automatic Lighting/Rain Sensor | Automatic Lighting Control Unit | |
| BUS OFF | U1280 | U1280 | U1280 | U1280 | U1280 |
| ECU (EEPROM) Error | B1352 | B2352 | B1575 | ||
Loss of Communication
| Transmitting Control Unit | Receiving Unit/Loss of Communication DTC | ||||||
|---|---|---|---|---|---|---|---|
| MICU | Power Control Unit | Power Window Master Switch | Gauge Control Module | Climate Control Unit | Keyless Access Control Unit | Backup Control Unit | |
| MICU | TX | U1281 | U1281 | U1281 | B2969 | U1281 | |
| Power Control Unit | TX | ||||||
| Power Window Master Switch | TX | U0199 | |||||
| Gauge Control Module | U128D | U128D | U128D | TX | U128D | U128D | U128D |
| Transmitting Control Unit | Receiving Unit/Loss of Communication DTC | ||||||
|---|---|---|---|---|---|---|---|
| MICU | Power Control Unit | Power Window Master Switch | Gauge Control Module | Climate Control Unit | Keyless Access Control Unit | Backup Control Unit | |
| Climate Control Unit | U0164 | TX | |||||
| Automatic Lighting/Rain sensor | |||||||
| Automatic Lighting Control Unit | |||||||
| Keyless Access Control Unit | B12F2 | TX | |||||
| Backup Control Unit | B12F1 | TX | |||||
| Immobilizer-Keyless Control Unit | |||||||
| Power Seat Control Unit | |||||||
| Power Tailgate Control Unit | U0230 | ||||||
| ACC/Multipurpose Camera Unit | U0104 | ||||||
| All Wheel Drive Control Unit | U0114 | ||||||
| LKAS Camera/Control Unit | U1100 | ||||||
| PCM | U0100 | U0100 | |||||
| SRS Unit | U0151 | ||||||
| VSA Modulator-Control Unit | U0122 | U0122 | |||||
| EPS Control Unit | U0131 | ||||||
| Electric Steering Lock | B12F0 | ||||||
| Transmitting Control Unit | Receiving Unit/Loss of Communication DTC | ||||
|---|---|---|---|---|---|
| Immobilizer-Keyless Control Unit | Power Seat Control Unit | Power Tailgate Control Unit | Automatic Lighting/Rain Sensor | Automatic Lighting Control Unit | |
| MICU | U1281 | U1281 | U1281 | U1281 | U1281 |
| Power Control Unit | |||||
| Power Window Master Switch | U0199 | U0199 | |||
| Gauge Control Module | U128D | U128D | U128D | U128D | U128D |
| Climate Control Unit | |||||
TX: Transmitting units do not set loss of communication DTCs.
| Transmitting Control Unit | Receiving Unit/Loss of Communication DTC | ||||
|---|---|---|---|---|---|
| Immobilizer-Keyless Control Unit | Power Seat Control Unit | Power Tailgate Control Unit | Automatic Lighting/Rain Sensor | Automatic Lighting Control Unit | |
| Automatic Lighting/Rain sensor | TX | ||||
| Automatic Lighting Control Unit | TX | ||||
| Keyless Access Control Unit | |||||
| Backup Control Unit | |||||
| Immobilizer-Keyless Control Unit | TX | ||||
| Power Seat Control Unit | TX | ||||
| Power Tailgate Control Unit | TX | ||||
| ACC/Multipurpose Camera Unit | |||||
| All Wheel Drive Control Unit | |||||
| LKAS Camera/Control Unit | |||||
| PCM | |||||
| SRS Unit | |||||
| VSA Modulator-Control Unit | |||||
| EPS Control Unit | |||||
| Electric Steering Lock | |||||
TX: Transmitting units do not set loss of communication DTCs.