Multiplex Communication System

DIAGNOSTIC TROUBLE CODE CHART

B1201-B1279:

If a malfunction code is displayed during DTC check, check the circuit corresponding to the code in the table below. Proceed to the given circuit.

HINT: When DTC of "+B or GND short malfunction of communication bus (such as B1214, B1215, etc..)" and "communication stop (such as B1211, B1212, etc..)" are detected simultaneously, repair DTC of "+B or GND short malfunction of communication bus" first.