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HAC-66 < DTC/CIRCUIT DIAGNOSIS > [AUTOMATIC AIR CONDITIONER] POWER SUPPLY AND GROUND CIRCUIT 2. Disconnect the blower motor relay from the fuse block (J/B). Refer to XX-XX, "*****" . 3. Turn the ignition switch ON. 4. Check voltage between the ground and the connector on the fuse block side where blower motor relay XX-XX, "*****" . Is inspection result normal? YES >> GO TO 6. NO >> Repair the power supply circuit. Refer to XX-XX, "*****" . 6. CHECK BLOWER MOTOR RELAY Perform the blower motor component inspection. Refer to HAC-58, "Component Inspection" . Is inspection result normal? YES >> Repair the harness or connector between blower motor relay and A/C auto amp. NO >> Replace blower motor relay. (+) ( − ) Voltage (Approx.) Fuse block (J/B) — 1 Ground Battery voltage 3 |