Heater & A/C Control Unit(Manual)

Check Point By Type

Mode Check




As shown in the above figure, in adjusting mode switch from VENT to DEF, 0V is outputted from connector B4, 12V is supplied for B5 and mode motor works in direction of DEF. In adjusting mode switch from DEF to VENT, 0V is outputted from connector B5, 12V is supplied for B4 and mode motor works in direction of VENT. When mode actuator has to move to a certain location for its automatic control, mode feedback signal terminal moves equally in mode actuator and informs controller of location of mode actuator through mode connector B6. Comparing original value with the inputted value, it works until they are same.
Troubleshooting