Nissan Leaf Diagnostic Agent
MCP Framework Implementation
Diagnostic Input
Enter vehicle diagnostic information

Select Scenario

M/C Relay Failure Scenario

This scenario includes the following DTCs:

  • C118C-86 (EV/HEV System)
  • P3178-86 (ECU Activation Error)
  • U1000 (CAN Communication)
  • P31E8-14 (Water Pump 1)

And symptoms:

  • Vehicle won't start
  • Cooling system error
  • Multiple system failures
Diagnostic system idle