Multiplex Communication System

DIAGNOSTIC TROUBLE CODE CHART

If a malfunction code is displayed during the DTC check, check the circuit listed for that code in the chart.

B1200 - B1287:

HINT: When DTCs indicating "+B or GND short malfunction of communication bus" (B1214, B1215) are detected at the same time as DTCs indicating "communication stop" (B1200, B1208, etc.), repair DTCs indicating "+B or GND short malfunction of communication bus" first.