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Home >> Hyundai >> 1999 >> Sonata L4-2.4L >> Repair and Diagnosis >> Relays and Modules >> Relays and Modules - HVAC >> Control Module HVAC >> Testing and Inspection
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Control Module HVAC: Testing and Inspection




Power Transistor
1. Measure voltage between pin 1 and pin 2.
2. The voltage increases up to selecting blower motor speed button until Hi-blower relay works.