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HAC-208 < DTC/CIRCUIT DIAGNOSIS > [MANUAL AIR CONDITIONING] BLOWER MOTOR BLOWER MOTOR Diagnosis Procedure INFOID:0000000010432566 1. CHECK SYMPTOM Check symptom (A, B or C). Which symptom is detected? A >> GO TO 2. B >> GO TO 11. C >> GO TO 13. 2. CHECK FUSE 1. Turn ignition switch OFF. 2. Check following fuses. - 20 A fuses [Nos. 7 and 17, located in the fuse block (J/B)] NOTE: PG-104, "Fuse, Connector and Terminal Arrangement" Is the inspection result normal? YES >> GO TO 3. NO >> Replace the blown fuse after repairing the affected circuit if a fuse is blown. 3. CHECK BLOWER MOTOR POWER SUPPLY 1. Disconnect blower motor connector. 2. Turn ignition switch ON. 3. Check voltage between blower motor harness connector and ground. Is the inspection result normal? YES >> GO TO 5. NO >> GO TO 4. 4. CHECK BLOWER RELAY 1. Turn ignition switch OFF. 2. Check blower relay. Refer to HAC-211, "Component Inspection (Blower Relay)" . Is the inspection result normal? YES >> Repair harness or connector between blower motor and fuse. NO >> Replace blower relay. 5. CHECK FAN CONTROL AMP. POWER SUPPLY (SOURCE) CIRCUIT 1. Turn ignition switch OFF. 2. Connect blower motor connector. 3. Disconnect fan control amp. connector. 4. Turn ignition switch ON. 5. Check voltage between fan control amp. harness connector and ground. Symptom A Blower motor does not operate. B Blower motor operates at the maximum fan Blower motor can be switched to OFF. C Blower motor cannot be switched to OFF. + − Voltage Blower motor Connector Terminal M357 1 Ground 11 – 14 V |