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If No CAN Communication Is Available With ECM

Control part Fail-safe operation
Cooling fan
  • The cooling fan relay-1, the cooling fan relay-2 and the cooling fan relay-3 turn ON when the ignition switch is turned ON (Cooling fan HI operation)
  • The cooling fan relay-1, the cooling fan relay-2 and the cooling fan relay-3 turn OFF when the ignition switch is turned OFF
A/C compressor A/C relay OFF
Alternator Outputs the power generation command signal (PWM signal) 0%
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