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AIR MIX DOOR MOTOR HAC-203 < DTC/CIRCUIT DIAGNOSIS > [MANUAL A/C (TYPE 2)] C D E F G H J K L M A B HAC N O P 1. Reconnect front air control harness connector. 2. Turn ignition switch ON. 3. Rotate temperature control dial to 32 °C (90°F). 4. Check voltage between front air control harness connector M176 terminal 3 and terminal 4 while rotating temperature con- trol dial to 18 °C (60°F) and back to 32°C (90°F). Is the inspection result normal? YES >> GO TO 4. NO >> Replace front air control. Refer to VTL-8, "Removal and Installation" . 3. CHECK AIR MIX DOOR MOTOR PBR CIRCUITS FOR OPEN AND SHORT TO GROUND 1. Turn ignition switch OFF. 2. Disconnect the front air control harness connector M176 (A). 3. Check continuity between front air control harness connector M176 (A) terminals 2, 15 and air mix door motor harness con- nector M147 (B) terminals 2, 3. 4. Check continuity between front air control harness connector M176 terminals 2, 15 and ground. Is the inspection result normal? YES >> GO TO 5. NO >> Repair or replace harness as necessary. 4. CHECK PBR FEEDBACK SIGNAL CIRCUIT FOR OPEN AND SHORT TO GROUND 1. Check continuity between front air control harness connector M176 (A) terminal 18 and air mix door motor harness connector M147 (B) terminal 4. Connector Terminals Condition Voltage (Approx.) (+) (-) M176 3 4 While rotating temperature control dial from 32 °C (90°F) to 18°C (60°F) Battery voltage 4 3 While rotating temperature control dial from 18 °C (60°F) to 32°C (90°F) Battery voltage AWIIA0504ZZ A B Continuity Connector Terminal Connector Terminal M176 15 M147 2 Yes 2 3 Connector Terminal — Continuity M176 15 Ground No 2 AWIIA0955ZZ A B Continuity Connector Terminal Connector Terminal M176 18 M147 4 Yes AWIIA0515ZZ |