Other information:
Operation Condition
1.
The power supplied to the PTC heater should be within DC 240V - 420V (high voltage).
2.
The power supplied to the PTC heater should be within 9.0V - 16.0V (low voltage).
3.
The interlcok and insulation resistance must be normal.
4.
The engine must be running.
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Inspection
1.
Check for output signal in the heater and A/C control unit.
2.
Using the GDS, check whether there is a problem in the interlock.
3.
Check whether the low voltage (12V) is supplied or not.
4.
For inspection, refer to the Self Diagnosis and Fail Safe.
Replacement
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