Diagnosis Item 14: Diagnose when the M.U.T.-III cannot receive the data sent by engine-ECU


caution When servicing a CAN bus line, earth yourself by touching a metal object such as an unpainted water pipe. If you fail to do, a component connected to the CAN bus line may be broken.

FUNCTION



TROUBLE JUDGEMENT CONDITIONS



TROUBLESHOOTING HINTS



  • Malfunction of the connector [joint connector (CAN3) and engine-ECU connector improperly connected]
  • Malfunction of the wiring harness [open circuit between the engine-ECU and the joint connector (CAN3), power supply circuit to the engine-ECU]
  • Malfunction of the engine-ECU