Mf1a Transfer / 4wd / Awd

Fail-safe Chart

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FAIL-SAFE CHART

1. FAIL-SAFE FUNCTION

  • If the following malfunctions occur, the AWD control ECU will stop the function of 4WD control system or partly change the function to control the system.
  • If a malfunction occurs in the sensor signal or actuator, the flow of electricity to the electromagnetic solenoid of the electromagnetic control coupling is prohibited. As a result, the system enters front wheel drive condition.
  • When a component of the system malfunctions and the fail-safe function activate, the component operation is prohibited. However, if the system is controlling the component and the fail-safe function activates, the system operation is gradually stopped to prevent sudden changes in the vehicle condition.
  • When system control is not possible, the warning light is illuminated to stop operation of the system operation.

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