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TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS ACS-81 [ICC] C D E F G H I J L M A B ACS 2. CHECK HARNESS BETWEEN ICC UNIT AND ASCD PUMP 1. Turn ignition switch OFF. 2. Disconnect ASCD pump connector. 3. Check voltage between ASCD pump harness connector E15 OK or NG NG >> ● Repair harness between ICC unit and ASCD pump ● After repair, erase DTC and perform ICC system run- OK >> Replace ICC unit. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again. 3. CHECK ICC UNIT REFERENCE SIGNAL 1. Connect ASCD pump connector. 2. Start engine. 3. Turn ON/OFF switch ON. 4. Check voltage between ICC unit harness connector B245 termi- OK or NG NG >> ● Repair harness between ICC unit and ASCD pump. ● After repair, erase DTC and perform ICC system run- OK >> Replace ICC unit. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again. DTC 83 VACUUM PUMP [LOW VOLTAGE] AKS002QS 1. CHECK ASCD ACTUATOR ● Check ASCD actuator. Refer to OK or NG NG >> Replace ASCD actuator. Erase DTC, and perform self-diagnosis of ICC system again. OK >> GO TO 2. 2. CHECK HARNESS BETWEEN ICC UNIT AND ASCD PUMP 1. Turn ignition switch OFF. 2. Disconnect ICC unit connector and ASCD pump connector. 3. Check continuity between ICC unit harness connector B245 ter- OK or NG NG >> ● Repair harness between ICC unit and ASCD pump ● After repair, erase DTC and perform ICC system run- OK >> GO TO 3. Approx. 0V SKIA3074E Approx. 0V SKIA1187E 57 - 1, 72 - 4 Continuity should exist. SKIA1189E |