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11 CHECK IN-VEHICLE SENSOR Press (DEF) switch the second time, temperature detected by in-vehicle sensor is indicated on the display screen. ECON shown in display indicates negative temperature reading. RHA500G OK or NG OK © GO TO 12. NG © Go to In-vehicle Sensor Circuit (HA-132). 12 CHECK INTAKE SENSOR Press (DEF) switch the third time, temperature detected by intake sensor is indicated on the display. NOTE: RHA500GB OK or NG OK © 1. Press (DEF) switch the fourth time. Display returns to original presentation 5. 2. Turn ignition switch OFF or (AUTO) switch ON. 3. END NG © Go to Intake Sensor Circuit (HA-139). TROUBLE DIAGNOSES Self-diagnosis (Cont’d) HA-50 |