Multiplex Communication System
DIAGNOSTIC TROUBLE CODE CHARTB1200 - B1296:
If a trouble code is displayed during DTC check, check the circuit corresponding to the code in the table. Proceed to the troubleshooting given for the circuit.
When DTCs indicating +B or GND short malfunction of communication bus (B1214, B1215, etc.) are detected at the same time as DTCs indicating communication stop (B1200, B1207, etc.), repair DTCs indicating +B or GND short malfunction of communication bus first.