Loss of Communication DTC cross-reference chart
When an ECU is unable to communicate with the other ECUs on the CAN circuit, the other control units will set loss of communication DTCs.
Use this chart to find the control unit that is not communicating.
- Find the Transmitting Control Unit that is in the same row as all of the loss of communication DTCs retrieved.
- Perform the input test for the transmitting control unit.
DTC CROSS-REFERENCE CHART
| Transmitting Control Unit | Message | Receiving Unit/Loss of Communication DTC | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MICU | Relay Control Module | Door Multiplex Control Unit | Combination Switch Control Unit | Gauge Control Module | A/C Control Panel or Front climate Control Unit | MICU-Rear Junction Box | Power Tailgate Control Unit | Left Power Sliding Door Control Unit | Right Power Sliding Door Control Unit | Automatic Lighting Control Unit | Power Seat Control Unit | ||
| MICU | ALARM | B1056 | RX | ||||||||||
| MICU | B1055 | B1106 | B1255 | B1157 | B1955 | B1355 | B2005 | B2055 | B1556 | B1806 | |||
| DOOR SWITCH | B1057 | B1105 | B1159 | B1807 | |||||||||
| PASSENGER'S DOOR SWITCH | RX | B1358 | B2008 | B2058 | |||||||||
| Relay Control Module | RELAY CONTROL MODULE | B1005 | B1158 | B1959 | |||||||||
| Door Multiplex Control Unit | KEYLESS DOOR LOCK | RX | RX | RX | RX | ||||||||
| PANIC | RX | RX | |||||||||||
| DRIVER'S DOOR LOCK SWITCH | B1006 | B1058 | B1160 | B1356 | |||||||||
| FOB ID | RX | RX | RX | ||||||||||
| Combination Switch Control Unit | HEADLIGHT SWITCH | B1007 | B1062 | B1155 | B1957 | B1555 | |||||||
| WIPER SWITCH | B1063 | B1156 | B1958 | ||||||||||
| Gauge Control Module | VSP/NE | RX | B1060 | B1205 | B1357 | B2010 | B2060 | B1805 | |||||
| A/T | B1008 | B1061 | B1956 | B1359 | B2011 | B2061 | B1808 | ||||||
| ENGTEP | B1206 | ||||||||||||
| LLUMI | B1207 | ||||||||||||
| VSP | |||||||||||||
| VSA | |||||||||||||
| STEERING | |||||||||||||
| A/C Control Panel or Front Climate Control Unit | RX | RX | B1960 | ||||||||||
| MICU-Rear Junction Box | RJU | B1012 | B2007 | ||||||||||
| Power Tailgate Control Unit | ANSWER BACK | RX | |||||||||||
| POWER TAILGATE | B1162 | ||||||||||||
| Left Power Sliding Door Control Unit | LEFT POWER SLIDING DOOR | B1163 | |||||||||||
| PSDBUZZ | B2059 | ||||||||||||
| Right Power Sliding Door Control Unit | RIGHT POWER SLIDING DOOR | B1164 | |||||||||||
| Automatic Lighting Control Unit | AUTOLT | RX | RX | B1165 | |||||||||
| PCM | B1168 B1169 |
||||||||||||
| TPMS | B1173 | ||||||||||||
| VSA | B1170 | ||||||||||||
| SRS | B1187 | ||||||||||||
| RX: Receiving unit does not set a loss of communication DTC. | |||||||||||||