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HAC-106 < DTC/CIRCUIT DIAGNOSIS > [MANUAL AIR CONDITIONER] A/C SWITCH Is inspection result normal? YES >> GO TO 4. NO >> GO TO 5. 4. CHECK CONTINUITY A/C CONTROL GROUND CIRCUIT 1. Turn the ignition switch OFF. 2. Check continuity between A/C control harness connector and the ground. Is inspection result normal? YES >> Replace the A/C switch (A/C control). NO >> Repair the harness or connector. 5. CHECK CONTINUITY BETWEEN A/C CONTROL AND THERMO CONTROL AMP. 1. Turn the ignition switch OFF. 2. Disconnect the thermo control amp. connector. 3. Check continuity between A/C control harness connector and thermo control amp. harness connector. Is inspection result normal? YES >> GO TO 6. NO >> Repair the harness or connector. 6. CHECK CONTINUITY BETWEEN THERMO CONTROL AMP. AND BCM Check continuity between thermo control amp. harness connector and BCM harness connector. Is inspection result normal? YES >> GO TO 7. NO >> Repair the harness or connector. 7. CHECK CONTINUITY BETWEEN A/C CONTROL AND GROUND Check continuity between A/C control harness connector and the ground. (+) ( − ) Output waveform A/C control — Connector Terminal M53 14 Ground Approx. 1.0 ∼ 1.5 V JPMIA0012GB A/C control — Continuity Connector Terminal M53 6 Ground Existed A/C control Thermo control amp. Continuity Connector Terminal Connector Terminal M53 14 M44 2 Existed Thermo control amp. BCM Continuity Connector Terminal Connector Terminal M44 3 M65 27 Existed |