Loss of Communication DTC cross-reference chart
When an ECU on the CAN circuit is unable to communicate with the other ECUs on the B-CAN and F-CAN circuit, the other control units set loss of communication DTCs. Use this chart to find the control unit that is not communicating with the other control units on the CAN circuit.
- Find the Transmitting Control Unit that is in the same row as all of the loss of communication DTCs retrieved.
- Do the input test for the transmitting control unit.
| DTC type | Related Unit | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| MICU | Gauge control module | Door multiplex control unit | Immobilizer-keyless control unit | Climate control unit or HVAC control unit | Automatic lighting control unit | Power seat control unit | Parking and back-up sensor control unit | Power tailgate control unit | Seat heater control unit | |
| BUS OFF | U1280 | U1280 | U1280 | U1280 | U1280 | U1280 | U1280 | U1280 | U1280 | U1280 |
| ECU (CPU) Error | B1901 | B2601 | ||||||||
| ECU (EE-PROM) Error | B1002 | B1152 | B1902 | B1552 | B1802 | B2602 | B1352 | |||
| Transmitting Control Unit | Receiving Unit/Loss of Communication DTC | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| MICU | Gauge control module | Door multiplex control unit | Immobilizer-keyless control unit | Climate control unit or HVAC control unit | Automatic lighting control unit | Power seat control unit | Parking and back-up sensor control unit | Power tailgate control unit | Seat heater control unit | |
| MICU | TX | U1281 | U1282 | U1282 | U1281 | U1282 | U1282 | U1281 | ||
| Gauge control module | U0155 | TX | U0155 | U0155 | U0155 | U128D | U0155 | U0155 | U0155 | |
| Door multiplex control unit | U0199 | TX | U0199 | U0199 | U0199 | |||||
| Climate control unit or HVAC control unit | U0164 | U0164 | TX | U0164 | ||||||
| Automatic lighting control unit | U0180 | TX | ||||||||
| Parking and back-up sensor control unit | U1288 | |||||||||
| Power tailgate control unit | U0230 | |||||||||
| PCM | U0100 | |||||||||
| SRS unit | U0151 | |||||||||
| VSA modulator-control unit | U0122 | |||||||||
| TPMS control unit | U0127 | |||||||||
| TX: Transmitting unit does not set a loss of communication DTC. | ||||||||||