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5 CHECK FAN CONTROL AMP. CIRCUIT BETWEEN FAN CONTROL AMP. AND AUTO AMP. (LCU) 1. Disconnect auto amp. (LCU) and fan control amp. harness connector. 2. SHA375F Continuity should exist. If OK, check harness for short. OK or NG OK © GO TO 6. NG © Repair harness or connector. 6 CHECK FAN FEED BACK CIRCUIT Reconnect auto amp. (LCU) harness connector. SHA371F Yes or No Yes © GO TO 7. No © Check power supply circuit and 15A fuses (Nos. 51 and 52, located in the fuse block). I If OK, check for open circuit in wiring harness. I If NG, replace fuse and check wiring harness for short circuit. GI MA EM LC EC FE AT AX SU BR ST RS BT SC EL IDX TROUBLE DIAGNOSES Blower Motor (Cont’d) HA-71 |