Description Of On-Board Diagnostics

Troubleshooting, Its Overview and Procedures

The full automatic heater and air conditioner equips with the "Self-Diagnosis Function" to check its major components.

This function makes access to the sensors, actuators and blower fan motor system easier when checking them up and, when a failed part is located, this function restores its original performance.

When implementing the troubleshooting, this self-diagnosis function narrows the range to be searched at the first step, then check relevant parts one by one according to the "Checking Procedures by Failed Location". As for a location this function is unappreciable, the system accurately determines characteristics of a given trouble and checks relevant parts according to the "Checking Procedures by Failed Location".