INSPECT PTC HEATER RELAY (PTC NO. 1, PTC NO. 2, PTC NO. 3)
CHECK HARNESS AND CONNECTOR (FUSE - PTC HEATER RELAY)
CHECK HARNESS AND CONNECTOR (PTC HEATER RELAY - BODY GROUND)
PERFORM ACTIVE TEST USING INTELLIGENT TESTER (HEATER ACTIVE LEVEL)
PERFORM ACTIVE TEST USING INTELLIGENT TESTER (HEATER ACTIVE LEVEL)
CHECK HARNESS AND CONNECTOR (PTC HEATER RELAY - AIR CONDITIONING AMPLIFIER)