FOREWORD [MULTIPLEX COMMUNICATION SYSTEM (L.H.D.)]

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• If the CAN system is considered to be the cause of the malfunction based on the repair order form and the malfunctioning symptom, follow the Troubleshooting Procedure.
• DTCs are also output due to a control module or sensor malfunction, or incorrect power supply. Verify the output DTCs and first inspect the DTCs not shown in DTC TABLE [MULTIPLEX COMMUNICATION SYSTEM (L.H.D.)].
• If there is an open circuit in the communication lines, it is possible that signal error DTCs may be output in addition to communication error DTCs. Perform DETERMINING MALFUNCTIONING PART (HS-CAN) [MULTIPLEX COMMUNICATION SYSTEM (L.H.D.)], DETERMINING MALFUNCTIONING PART (MS-CAN) [MULTIPLEX COMMUNICATION SYSTEM (L.H.D.)] if the communication error and signal error DTCs are output simultaneously.

Troubleshooting Procedure

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*1 :DTC TABLE [MULTIPLEX COMMUNICATION SYSTEM (L.H.D.)]
*2 :DTC U0001:88, U0073, U1900 [MULTIPLEX COMMUNICATION SYSTEM (L.H.D.)]
*3 :DTC 16:Er12 [MULTIPLEX COMMUNICATION SYSTEM (L.H.D.)]
*4 :DETERMINING MALFUNCTIONING PART (HS-CAN) [MULTIPLEX COMMUNICATION SYSTEM (L.H.D.)] / DETERMINING MALFUNCTIONING PART (MS-CAN) [MULTIPLEX COMMUNICATION SYSTEM (L.H.D.)]
*5 :M-MDS AND VEHICLE NOT COMMUNICATING [MULTIPLEX COMMUNICATION SYSTEM (L.H.D.)]