Loss of Communication DTC Cross-Reference Table
When an ECU is unable to communicate with the other ECUs on the circuit, the other units will set loss of communication DTCs. Use this LOSS OF COMMUNICATION DTC CROSS-REFERENCE TABLE to find the control unit that is not communicating.
- Find the Transmitting Unit that is in the same row as all of the loss of communication DTCs retrieved.
- Perform the input test for the transmitting unit.
LOSS OF COMMUNICATION DTC CROSS-REFERENCE TABLE
| Transmitting Unit | Message | Receiving Unit/Loss of Communication DTC | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| MICU | Relay Control Module | Door Multiplex Control Unit | Gauge Control Module | Combination Switch Control Unit | Display Panel Control Unit | Power Seat Control Unit | ||||
| MICU | Alarm | - | B1056 | - | - | - | - | - | ||
| MICU | - | B1055 | (1) | B1157 | B1255 | - | B1806 | |||
| Door Switch | - | B1057 | (1) | B1159 | - | - | B1807 | |||
| Relay Control Module | Relay Control Module | B1005 | - | - | B1158 | - | - | - | ||
| Door Multiplex Control Unit | Panic | B1010 | B1059 | - | - | - | - | - | ||
| Door Lock Switch | B1006 | B1058 | - | B1160 | - | - | - | |||
| Memory Switch | - | - | - | - | - | - | B1809 | |||
| Gauge Control Module | VSP/NE | B1011 | B1060 | - | - | - | B1706 | B1805 | ||
| A/T | B1008 | B1061 | - | - | - | - | B1808 | |||
| ENGTEMP | - | - | - | - | - | B1705 | - | |||
| ILLUMI | - | - | - | - | - | - | - | |||
| Combination Switch Control Unit | Headlight Switch | B1007 | B1062 | - | B1155 | - | - | - | ||
| Wiper Switch | - | B1063 | - | B1156 | - | - | - | |||
| ECM/PCM | - | - | - | - | B1168 B1169 |
- | - | - | ||
| Climate Control Unit | - | - | - | - | - | - | B1726 | - | ||
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