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BLOWER MOTOR HAC-71 < DTC/CIRCUIT DIAGNOSIS > [WITHOUT 7 INCH DISPLAY] C D E F G H J K L M A B HAC N O P NO >> Repair harness or connector. 6. CHECK A/C AUTO AMP. OUTPUT SIGNAL 1. Reconnect blower motor connector and A/C auto amp. connector. 2. Turn ignition switch ON. 3. Set MODE switch to the VENT position. 4. Check the output waveform between blower motor harness connector and ground using an oscilloscope, Is the inspection result normal? YES >> Replace the blower motor. NO >> Replace the A/C auto amp. 7. CHECK POWER VOLTAGE OF BLOWER RELAY 1. Turn the ignition switch OFF. 2. Remove the blower relay. Refer to PG-113, "Fuse, Connector and Terminal Arrangement" 3. Turn the ignition switch ON. 4. Check the voltage between blower relay fuse block side terminal and ground. Refer to Connector and Terminal Arrangement" for relay terminal assignment. Is the inspection result normal? YES >> GO TO 8. NO >> Inspection the power supply circuit. Refer to PG-67, "Wiring Diagram - IGNITION POWER SUP- 8. CHECK BLOWER RELAY 1. Turn the ignition switch OFF. 2. Install the blower relay. Refer to PG-113, "Fuse, Connector and Terminal Arrangement" 3. Turn the ignition switch ON. 4. Check the operating sound of blower relay. Is the inspection result normal? YES >> GO TO 9. NO >> Replace the blower relay. 9. CHECK FUSE Check 15A fuses (Nos. 21 and 22). JPIIA0616GB (+) ( − ) Voltage Blower relay — 1 Ground Battery voltage 3 |