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Contents Wiring diagrams Section: Automatic HVAC System All sections

Controller (Heating, Ventilation & Air Conditioning): Wiring Hyundai Genesis I

Automatic HVAC System 1 illustration ~6306 words

Check for open in harness

  1. Ignition "OFF"
  2. Disconnect passenger air mix actuator and A/C control unit main harness connector.
  3. Measure resistance between Signal (F/B) terminal of passenger air mix actuator harness connector and Signal (F/B) terminal of A/C-ECU harness connector. Specification: 1ohms below
  4. Is the measured resistance within specification? YES Go to " «CHECK SHORT TO GROUND IN HARNESS»(ref-345976-S41132803242009102300000) " as follows. NO Check for open in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S01806188052009102300000) " procedure.

Check short to ground in harness

  1. Ignition "OFF"
  2. Disconnect passenger air mix actuator and A/C control unit main harness connector.
  3. Measure resistance between Signal (F/B) terminal of passenger air mix actuator harness connector and chassis ground. Specification: Infinity
  4. Is the measured resistance within specification? YES Go to " «POWER CIRCUIT INSPECTION»(ref-345976-S35115432402009102300000) " procedure. NO Check for short to ground in control harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S01806188052009102300000) " procedure.

Check power in harness

  1. Ignition "OFF"
  2. Disconnect passenger air mix actuator and Connect A/C control unit main harness connector.
  3. Ignition "ON"
  4. Measure voltage between Sensor REF (5V) terminal of passenger air mix actuator harness connector and chassis ground. Specification: approx. 5V
  5. Is the measured voltage within specification? YES Go to " «GROUND CIRCUIT INSPECTION»(ref-345976-S02891490552009102300000) " procedure. NO Check for open and short to ground in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S01806188052009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect passenger air mix actuator and A/C control unit main harness connector.
  3. Measure resistance between Sensor ground (-) terminal of passenger air mix actuator harness connector and Sensor ground (-) terminal of A/C-ECU harness connector. Specification: 1ohms below
  4. Is the measured resistance within specification? YES Go to " «COMPONENT INSPECTION»(ref-345976-S01823477382009102300000) " procedure. NO Check for open in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S01806188052009102300000) " procedure.

Check short to battery in harness

  1. Ignition "OFF"
  2. Disconnect passenger air mix actuator and A/C control unit main harness connector.
  3. Ignition "ON"
  4. Measure voltage between Signal (F/B) terminal of passenger air mix actuator harness connector and chassis ground. Specification: 0V
  5. Is the measured voltage within specification? YES Go to " «GROUND CIRCUIT INSPECTION»(ref-345976-S13365859832009102300000) " procedure NO Check for short to battery in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S01806188052009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect passenger air mix actuator and A/C control unit main harness connector.
  3. Measure resistance between Sensor ground (-) terminal of passenger air mix actuator harness connector and Sensor ground (-) terminal of A/C-ECU harness connector. Specification: 1ohms below
  4. Is the measured resistance within specification? YES Go to " «COMPONENT INSPECTION»(ref-345976-S09372602822009102300000) " procedure. NO Check for open in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S01806188052009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Intake actuator and A/C control unit main harness connector.
  3. Measure resistance between Signal (F/B) terminal of Intake actuator harness connector and Signal (F/B) terminal of A/C-ECU harness connector. Specification: 1ohms below
  4. Is the measured resistance within specification? YES Go to " «CHECK SHORT TO GROUND IN HARNESS»(ref-345976-S38437809492009102300000) " as follows. NO Check for open in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S11245013762009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Intake actuator and A/C control unit main harness connector.
  3. Measure resistance between Signal (F/B) terminal of Intake actuator harness connector and chassis ground. Specification: Infinity
  4. Is the measured resistance within specification? YES Go to " «POWER CIRCUIT INSPECTION»(ref-345976-S26912599512009102300000) " procedure. NO Check for short to ground in control harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S11245013762009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Intake actuator and Connect A/C control unit main harness connector.
  3. Ignition "ON"
  4. Measure voltage between Sensor REF (5V) terminal of Intake actuator harness connector and chassis ground. Specification: approx. 5V
  5. Is the measured voltage within specification? YES Go to " «COMPONENT INSPECTION»(ref-345976-S42907859272009102300000) " procedure. NO Check for open and short to ground in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S11245013762009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Intake actuator and A/C control unit main harness connector.
  3. Ignition "ON"
  4. Measure voltage between Signal (F/B) terminal of Intake actuator harness connector and chassis ground. Specification: 0V
  5. Is the measured voltage within specification? YES Go to " «GROUND CIRCUIT INSPECTION»(ref-345976-S39945097822009102300000) " procedure. NO Check for short to battery in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S00011278182009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Intake actuator and A/C control unit main harness connector.
  3. Measure resistance between Sensor ground (-) terminal of Intake actuator harness connector and Sensor ground (-) terminal of A/C-ECU harness connector. Specification: 1ohms below
  4. Is the measured resistance within specification? YES Go to " «COMPONENT INSPECTION»(ref-345976-S27375856732009102300000) " procedure. NO Check for open in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S00011278182009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Incar temp.sensor and Connect A/C control unit main harness connector.
  3. Measure resistance between Signal (+) terminal of incar temp.sensor harness connector and chassis ground Specification: Infinity
  4. Is the measured resistance within specification? YES Go to " «COMPONENT INSPECTION»(ref-345976-S38802125342009102300000) " procedure. NO Check for short to ground in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S20472857552009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Incar temp, sensor and Connect A/C control unit main harness connector.
  3. Ignition "ON"
  4. Measure voltage between Power terminal of Incar temp, sensor harness connector and chassis ground. Specification: 0V
  5. Is the measured voltage within specification? YES Go to " «CHECK FOR OPEN IN HARNESS»(ref-345976-S30787562592009102300000) " as follows. NO Check for short to battery in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S26298915932009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Incar temp.sensor and A/C control unit main harness connector.
  3. Measure resistance between Signal (+) terminal of Incar temp.sensor harness connector and Signal (+) terminal of A/C-ECU harness connector. Specification: 10 below
  4. Is the measured resistance within specification? YES Go to " «GROUND CIRCUIT INSPECTION»(ref-345976-S26486715942009102300000) " procedure NO Check for open in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S26298915932009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Incar temp.sensor and A/C control unit main harness connector.
  3. Measure resistance between ground terminal of Incar temp.sensor harness connector and ground terminal of A/C-ECU harness connector. Specification: 1ohms below
  4. Is the measured resistance within specification? YES Go to " «COMPONENT INSPECTION»(ref-345976-S02950558742009102300000) " procedure. NO Check for open in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S26298915932009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect ambient sensor and Connect A/C control unit main harness connector.
  3. Ignition "ON"
  4. Measure voltage between Power terminal of ambient sensor harness connector and chassis ground. Specification: Infinity
  5. Is the measured resistance within specification? YES Go to " «COMPONENT INSPECTION»(ref-345976-S05184524972009102300000) " procedure. NO Check for short to ground in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S25189622202009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect ambient sensor and A/C control unit main harness connector.
  3. Ignition "ON"
  4. Measure voltage between Signal (F/B) terminal of ambient sensor harness connector and chassis ground. Specification: 0V
  5. Is the measured voltage within specification? YES Go to " «CHECK FOR OPEN IN HARNESS»(ref-345976-S21887872292009102300000) " as follows. NO Check for short to battery in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S18287490742009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect ambient sensor and A/C control unit main harness connector.
  3. Measure resistance between Signal (+) terminal of ambient sensor harness connector and Signal (+) terminal of A/C-ECU harness connector. Specification: 1ohms below
  4. Is the measured resistance within specification? YES Go to " «GROUND CIRCUIT INSPECTION»(ref-345976-S17709015812009102300000) " procedure NO Check for open in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S18287490742009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect ambient sensor and A/C control unit main harness connector.
  3. Measure resistance between ground terminal of ambient sensor harness connector and ground terminal of A/C-ECU harness connector. Specification: 1ohms below
  4. Is the measured resistance within specification? YES Go to " «COMPONENT INSPECTION»(ref-345976-S01645591742009102300000) " procedure. NO Check for open in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S18287490742009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Evaporator sensor and Connect A/C control unit main harness connector.
  3. Measure resistance between Signal (+) terminal of Evaporator sensor harness connector and chassis ground Specification: Infinity
  4. Is the measured resistance within specification? YES Go to " «COMPONENT INSPECTION»(ref-345976-S14776966352009102300000) " procedure. NO Check for short to battery in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S36629718942009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Evaporator sensor and A/C control unit main harness connector.
  3. Ignition "ON"
  4. Measure voltage between Signal (F/B) terminal of Evaporator sensor harness connector and chassis ground. Specification: 0V
  5. Is the measured voltage within specification? YES Go to " «CHECK FOR OPEN IN HARNESS»(ref-345976-S28287474162009102300000) " as follows. NO Check for short to battery in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S38968510302009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Evaporator sensor and A/C control unit main harness connector.
  3. Measure resistance between Signal (+) terminal of Evaporator sensor harness connector and Signal (+) terminal of A/C-ECU harness connector. Specification: 1ohms below
  4. Is the measured resistance within specification? YES Go to " «GROUND CIRCUIT INSPECTION»(ref-345976-S29859835202009102300000) " procedure NO Check for open in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S38968510302009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Evaporator sensor and A/C control unit main harness connector.
  3. Measure resistance between ground terminal of Evaporator sensor harness connector and ground terminal of A/C-ECU harness connector. Specification: 1ohms below
  4. Is the measured resistance within specification? YES Go to " «COMPONENT INSPECTION»(ref-345976-S02396458992009102300000) " procedure. NO Check for open in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S38968510302009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Driver air mix actuator and A/c control unit main harness connector.
  3. Measure resistance between Signal (F/B) terminal of Driver air mix actuator harness connector and Signal (F/B) terminal of A/C-ECU harness connector. Specification: 1ohms below
  4. Is the measured resistance within specification? YES Go to " «CHECK SHORT TO GROUND IN HARNESS»(ref-345976-S05140428842009102300000) " as follows. NO Check for open in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S42867259662009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Driver air mix actuator and A/C control unit main harness connector.
  3. Measure resistance between Signal (F/B) terminal of Driver air mix actuator harness connector and chassis ground. Specification: Infinity
  4. Is the measured resistance within specification? YES Go to " «POWER CIRCUIT INSPECTION»(ref-345976-S20059825002009102300000) " procedure. NO Check for short to ground in control harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S42867259662009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Driver air mix actuator and Connect A/C control unit main harness connector.
  3. Ignition "ON"
  4. Measure voltage between Sensor REF (5V) terminal of Driver air mix actuator harness connector and chassis ground. Specification: approx. 5V
  5. Is the measured voltage within specification? YES Go to " «GROUND CIRCUIT INSPECTION»(ref-345976-S14681983722009102300000) " procedure. NO Check for open and short to ground in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S42867259662009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Driver air mix actuator and A/C control unit main harness connector.
  3. Measure resistance between Sensor ground (-) terminal of Driver air mix actuator harness connector and Sensor ground (-) terminal of A/C-ECU harness connector. Specification: 1ohms below
  4. Is the measured resistance within specification? YES Go to " «COMPONENT INSPECTION»(ref-345976-S24133185352009102300000) " procedure. NO Check for open in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S42867259662009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Driver air mix actuator and A/C control unit main harness connector.
  3. Ignition "ON"
  4. Measure voltage between Signal (F/B) terminal of Driver air mix actuator harness connector and chassis ground. Specification: 0V
  5. Is the measured resistance within specification? YES Go to " «GROUND CIRCUIT INSPECTION»(ref-345976-S00065525692009102300000) " procedure. NO Check for short to battery in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S19382092092009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Driver air mix actuator and A/C control unit main harness connector.
  3. Measure resistance between Sensor ground (-) terminal of Driver air mix actuator harness connector and Sensor ground (-) terminal of A/C-ECU harness connector. Specification: 1ohms below
  4. Is the measured resistance within specification? YES Go to " «COMPONENT INSPECTION»(ref-345976-S25804833112009102300000) " procedure. NO Check for open in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S19382092092009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Driver Direction actuator and A/C control unit main harness connector.
  3. Measure resistance between Signal (F/B) terminal of Driver Direction actuator harness connector and Signal (F/B) terminal of A/C-ECU harness connector. Specification: 1ohms below
  4. Is the measured resistance within specification? YES Go to " «CHECK SHORT TO GROUND IN HARNESS»(ref-345976-S29922541792009102300000) " as follows. NO Check for open in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S21610764982009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Driver Direction actuator and A/C control unit main harness connector.
  3. Measure resistance between Signal (F/B) terminal of Driver Direction actuator harness connector and chassis ground. Specification: Infinity
  4. Is the measured resistance within specification? YES Go to " «POWER CIRCUIT INSPECTION»(ref-345976-S34837233192009102300000) " procedure. NO Check for short to ground in control harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S21610764982009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Driver Direction actuator and Connect A/C control unit main harness connector.
  3. Ignition "ON"
  4. Measure voltage between Sensor REF (5V) terminal of Driver Direction actuator harness connector and chassis ground. Specification: approx. 5V
  5. Is the measured voltage within specification? YES Go to " «GROUND CIRCUIT INSPECTION»(ref-345976-S42579336722009102300000) " procedure. NO Check for open and short to ground in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S21610764982009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Driver Direction actuator and A/C control unit main harness connector.
  3. Measure resistance between Sensor ground (-) terminal of Driver Direction actuator harness connector and Sensor ground (-) terminal of A/C-ECU harness connector. Specification: 1ohms below
  4. Is the measured resistance within specification? YES Go to " «COMPONENT INSPECTION»(ref-345976-S18429799832009102300000) " procedure. NO Check for open in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S21610764982009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Driver Direction actuator and A/C control unit main harness connector.
  3. Ignition "ON"
  4. Measure voltage between Signal (F/B) terminal of Driver Direction actuator harness connector and chassis ground. Specification: 0V
  5. Is the measured voltage within specification? YES Go to " «GROUND CIRCUIT INSPECTION»(ref-345976-S14417015562009102300000) " procedure NO Check for short to battery in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S05252641652009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Driver Direction actuator and A/C control unit main harness connector.
  3. Measure resistance between Sensor ground (-) terminal of Driver Direction actuator harness connector and Sensor ground (-) terminal of A/C-ECU harness connector. Specification: 1ohms below
  4. Is the measured resistance within specification? YES Go to " «COMPONENT INSPECTION»(ref-345976-S00827011182009102300000) " procedure. NO Check for open in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S05252641652009102300000) " procedure.
  1. IG KEY OFF.
  2. Disconnect AQS sensor and A/C control unit main harness connector.
  3. Measure resistance between Sensor Signal terminal of AQS sensor harness connector and Sensor Signal terminal of A/C-ECU harness connector. Specification: 1ohms below
  4. Is the measured resistance within specification? YES Go to " «GROUND CIRCUIT INSPECTION»(ref-345976-S21287025902009102300000) " procedure. NO Check for open in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S37533513792009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect AQS sensor and A/C control unit main harness connector.
  3. Measure resistance between Sensor ground (-) terminal of AQS sensor harness connector and chassis ground. Specification: Infinity
  4. Is the measured resistance within specification? YES Go to " «POWER CIRCUIT INSPECTION»(ref-345976-S11931927752009102300000) " procedure NO Check for open in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S37533513792009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect AQS sensor and Connect A/C control unit main harness connector.
  3. Ignition "ON"
  4. Measure voltage between Power terminal of AQS sensor harness connector and chassis ground. Specification: approx. 12V
  5. Is the measured voltage within specification? YES Go to " «COMPONENT INSPECTION»(ref-345976-S06648338762009102300000) " procedure. NO Check for open and short to ground in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S37533513792009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect AQS sensor and Connect A/C control unit main harness connector.
  3. Ignition "ON"
  4. Measure voltage between Power terminal of AQS sensor harness connector and chassis ground. Specification: approx. 12V
  5. Is the measured voltage within specification? YES Go to " «SIGNAL CIRCUIT INSPECTION»(ref-345976-S03757858112009102300000) " procedure. NO Check for open and short to ground in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S20746534892009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect AQS sensor and A/C control unit main harness connector.
  3. Measure resistance between Sensor signal terminal of AQS sensor harness connector and chassis ground. Specification: Infinity
  4. Is the measured resistance within specification? YES Go to " «COMPONENT INSPECTION»(ref-345976-S20303550112009102300000) " procedure. NO Check for short to ground in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S20746534892009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect AQS sensor and Connect A/C control unit main harness connector.
  3. Ignition "ON"
  4. Measure voltage between Power terminal of AQS sensor harness connector and chassis ground. Specification: approx. 12V
  5. Is the measured voltage within specification? YES Go to " «SIGNAL CIRCUIT INSPECTION»(ref-345976-S22885813442009102300000) " procedure. NO Check for open and short to ground in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S36392474442009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect AQS sensor and A/C control unit main harness connector.
  3. Measure resistance between Sensor signal terminal of AQS sensor harness connector and chassis ground. Specification: Infinity
  4. Is the measured resistance within specification? YES Go to " «COMPONENT INSPECTION»(ref-345976-S16497221202009102300000) " procedure. NO Check for short to ground in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S36392474442009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Console temp actuator and A/C control unit main harness connector.
  3. Measure resistance between Signal (F/B) terminal of Console temp actuator harness connector and Signal (F/B) terminal of A/C-ECU harness connector. Specification: 1ohms below
  4. Is the measured resistance within specification? YES Go to " «CHECK SHORT TO GROUND IN HARNESS»(ref-345976-S36391434302009102300000) " as follows. NO Check for open in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S23152144642009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Console temp actuator and A/C control unit main harness connector.
  3. Measure resistance between Signal (F/B) terminal of Console temp actuator harness connector and chassis ground. Specification: Infinity
  4. Is the measured resistance within specification? YES Go to " «POWER CIRCUIT INSPECTION»(ref-345976-S11887867542009102300000) " procedure. NO Check for short to ground in control harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S23152144642009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Console temp actuator and Connect A/C control unit main harness connector.
  3. Ignition "ON"
  4. Measure voltage between Sensor REF (5V) terminal of Console temp actuator harness connector and chassis ground. Specification: approx. 5V
  5. Is the measured voltage within specification? YES Go to " «GROUND CIRCUIT INSPECTION»(ref-345976-S35227873482009102300000) " procedure. NO Check for open and short to ground in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S23152144642009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Console temp actuator and A/C control unit main harness connector.
  3. Measure resistance between Sensor ground (-) terminal of Console temp actuator harness connector and Sensor ground (-) terminal of A/C-ECU harness connector. Specification: 1ohms below
  4. Is the measured resistance within specification? YES Go to " «COMPONENT INSPECTION»(ref-345976-S12293213352009102300000) " procedure. NO Check for open in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S23152144642009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Console temp actuator and A/C control unit main harness connector.
  3. Ignition "ON"
  4. Measure voltage between Signal (F/B) terminal of Console temp actuator harness connector and chassis ground. Specification: 0V
  5. Is the measured voltage within specification? YES Go to " «GROUND CIRCUIT INSPECTION»(ref-345976-S10964868012009102300000) " procedure. NO Check for short to battery in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S32135200692009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Console temp actuator and A/C control unit main harness connector.
  3. Measure resistance between Sensor ground (-) terminal of Console temp actuator harness connector and Sensor ground (-) terminal of A/C-ECU harness connector. Specification: 1ohms below
  4. Is the measured resistance within specification? YES Go to " «COMPONENT INSPECTION»(ref-345976-S08597078652009102300000) " procedure. NO Check for open in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S32135200692009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Console temp actuator "A" and A/C control unit main harness connector.
  3. Measure resistance between Signal (F/B) terminal of Console temp actuator "A" harness connector and Signal (F/B) terminal of A/C-ECU harness connector. Specification: 1ohms below
  4. Is the measured resistance within specification? YES Go to " «CHECK SHORT TO GROUND IN HARNESS»(ref-345976-S23551196682009102300000) " as follows. NO Check for open in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S27731184332009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Console temp actuator "A" and A/C control unit main harness connector.
  3. Measure resistance between Signal (F/B) terminal of Console temp actuator "A" harness connector and chassis ground. Specification: Infinity
  4. Is the measured resistance within specification? YES Go to " «POWER CIRCUIT INSPECTION»(ref-345976-S11495794672009102300000) " procedure. NO Check for short to ground in control harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S27731184332009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Console temp actuator "A" and Connect A/C control unit main harness connector.
  3. Ignition "ON"
  4. Measure voltage between Sensor REF (5V) terminal of Console temp actuator "A" harness connector and chassis ground. Specification: approx. 5V
  5. Is the measured voltage within specification? YES Go to " «GROUND CIRCUIT INSPECTION»(ref-345976-S08527228412009102300000) " procedure. NO Check for open and short to ground in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S27731184332009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Console temp actuator "A" and A/C control unit main harness connector.
  3. Measure resistance between Sensor ground (-) terminal of Console temp actuator "A" harness connector and Sensor ground (-) terminal of A/C-ECU harness connector. Specification: 1ohms below
  4. Is the measured resistance within specification? YES Go to " «COMPONENT INSPECTION»(ref-345976-S39830248272009102300000) " procedure. NO Check for open in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S27731184332009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Console temp actuator "A" and A/C control unit main harness connector.
  3. Ignition "ON"
  4. Measure voltage between Signal (F/B) terminal of Console temp actuator "A" harness connector and chassis ground. Specification: 0V
  5. Is the measured voltage within specification? YES Go to " «GROUND CIRCUIT INSPECTION»(ref-345976-S40227066112009102300000) " procedure. NO Check for short to battery in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S26069105352009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Console temp actuator "A" and A/C control unit main harness connector.
  3. Measure resistance between Sensor ground (-) terminal of Console temp actuator "A" harness connector and Sensor ground (-) terminal of A/C-ECU harness connector. Specification: 1ohms below
  4. Is the measured resistance within specification? YES Go to " «COMPONENT INSPECTION»(ref-345976-S27906377862009102300000) " procedure. NO Check for open in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S26069105352009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Console temperature actuator & Switch and A/C control unit main harness connector.
  3. Measure resistance between Signal (F/B) terminal of Console temperature actuator & Switch harness connector and Signal (F/B) terminal of A/C-ECU harness connector. Specification: 1ohms below
  4. Is the measured resistance within specification? YES Go to " «CHECK SHORT TO GROUND IN HARNESS»(ref-345976-S19716865052009102300000) " as follows. NO Check for open in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S23414135392009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Console temperature actuator & Switch and A/C control unit main harness connector.
  3. Measure resistance between Signal (F/B) terminal of Console temperature actuator & Switch harness connector and chassis ground. Specification: Infinity
  4. Is the measured resistance within specification? YES Go to " «POWER CIRCUIT INSPECTION»(ref-345976-S01770722002009102300000) " procedure. NO Check for short to ground in control harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S23414135392009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Console temperature actuator & Switch and Connect A/C control unit main harness connector.
  3. Ignition "ON"
  4. Measure voltage between Sensor REF (5V) terminal of Console temperature actuator & Switch harness connector and chassis ground. Specification: approx. 5V
  5. Is the measured voltage within specification? YES Go to " «COMPONENT INSPECTION»(ref-345976-S23785089342009102300000) " procedure. NO Check for open and short to ground in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S23414135392009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Console temperature actuator & Switch and A/C control unit main harness connector.
  3. Ignition "ON"
  4. Measure voltage between Signal (F/B) terminal of Console temperature actuator & Switch harness connector and chassis ground. Specification: approx. 0V
  5. Is the measured voltage within specification? YES Go to " «GROUND CIRCUIT INSPECTION»(ref-345976-S24549352672009102300000) " procedure. NO Check for short to battery in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S14196690372009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Console temperature actuator & Switch and A/C control unit main harness connector.
  3. Measure resistance between Sensor ground (-) terminal of Console temperature actuator & Switch harness connector and Sensor ground (-) terminal of A/C-ECU harness connector. Specification: 1ohms below
  4. Is the measured resistance within specification? YES Go to " «COMPONENT INSPECTION»(ref-345976-S10389887182009102300000) " procedure. NO Check for open in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S14196690372009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Auto Defog sensor and Connect A/C control unit main harness connector.
  3. Ignition "ON"
  4. Measure voltage between Power terminal of Auto Defog sensor harness connector and chassis ground. Specification: approx. 5V
  5. Is the measured voltage within specification? YES Go to " «SIGNAL CIRCUIT INSPECTION»(ref-345976-S40706289482009102300000) " procedure. NO Check for open and short to ground in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S00611799732009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Auto Defog sensor and A/C control unit main harness connector.
  3. Measure resistance between Sensor ground (-) terminal of Auto Defog sensor harness connector and chassis ground. Specification: Infinity
  4. Is the measured resistance within specification? YES Go to " «CHECK FOR OPEN IN HARNESS»(ref-345976-S23726667462009102300000) " as follows. NO Check for short to ground in control harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S00611799732009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Auto Defog sensor and A/C control unit main harness connector.
  3. Measure resistance between Sensor Signal terminal of Auto Defog sensor harness connector and Sensor Signal terminal of A/C-ECU harness connector. Specification: 1ohms below
  4. Is the measured resistance within specification? YES Go to " «COMPONENT INSPECTION»(ref-345976-S26304103892009102300000) " procedure. NO Check for open in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S00611799732009102300000) " procedure.

Scheme 69

Scheme 69: Check Auto Defog sensor
Scheme 69: Check Auto Defog sensor
  1. Connect scantool with Diagnostic Connector.
  2. Warm up the engine to normal temperature after engine starts.
  3. Select and monitor "Auto defogger sensor" parameter with scantool.
  4. Check frequency or the value of auto Defog sensor is changed on the scantool by increasing or decreasing humidity near the defog sensor Specification: Refer the specifications in chart below) (%RH) (Hz) (%RH) (Hz) 0 37.19 60 34.8 20 36.4 80 34 40 35.6 100 33.2 see scheme 1) The frequency of auto defog sensor according to the humidity
  5. Is the measured value within the specification? YES Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S00611799732009102300000) " procedure. NO Substitute with a known-good Auto Defog sensor and check for proper operation. If the problem is corrected, replace Auto Defog sensor and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S00611799732009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Auto Defog sensor and A/C control unit main harness connector.
  3. Ignition "ON"
  4. Measure voltage between Signal terminal of Auto Defog sensor harness connector and chassis ground. Specification: approx. 0V
  5. Is the measured voltage within specification? YES Go to " «CHECK FOR OPEN IN HARNESS»(ref-345976-S15515509002009102300000) " as follows. NO Check for open in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S07712357602009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Auto Defog sensor and A/C control unit main harness connector.
  3. Measure resistance between Sensor Signal terminal of Auto Defog sensor harness connector and Sensor Signal terminal of A/C-ECU harness connector. Specification: 1ohms below
  4. Is the measured resistance within specification? YES Go to " «COMPONENT INSPECTION»(ref-345976-S20168628902009102300000) " procedure. NO Check for open in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S07712357602009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Auto Defog actuator and A/C control unit main harness connector.
  3. Measure resistance between Signal (F/B) terminal of Auto Defog actuator harness connector and Signal (F/B) terminal of A/C-ECU harness connector. Specification: 1ohms below
  4. Is the measured resistance within specification? YES Go to " «CHECK SHORT TO GROUND IN HARNESS»(ref-345976-S39056191712009102300000) " as follows. NO Check for open in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S13814708132009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Auto Defog actuator and A/C control unit main harness connector.
  3. Measure resistance between Signal (F/B) terminal of Auto Defog actuator harness connector and chassis ground. Specification: Infinity
  4. Is the measured resistance within specification? YES Go to " «POWER CIRCUIT INSPECTION»(ref-345976-S18068137452009102300000) " procedure. NO Check for short to ground in control harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S13814708132009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Auto Defog actuator and Connect A/C control unit main harness connector 3. Ignition "ON"
  3. Ignition "ON"
  4. Measure voltage between Sensor REF (5V) terminal of Auto Defog actuator harness connector and chassis ground. Specification: approx. 5V
  5. Is the measured voltage within specification? YES Go to " «COMPONENT INSPECTION»(ref-345976-S29484049852009102300000) " procedure. NO Check for open and short to ground in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S13814708132009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Auto Defog sensor and A/C control unit main harness connector.
  3. Ignition "ON"
  4. Measure voltage between Signal terminal of Auto Defog sensor harness connector and chassis ground. Specification: approx. 0V
  5. Is the measured voltage within specification? YES Go to " «GROUND CIRCUIT INSPECTION»(ref-345976-S17221015062009102300000) " procedure. NO Check for short to battery in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S16042635522009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Auto Defog sensor and A/C control unit main harness connector.
  3. Measure resistance between Sensor ground (-) terminal of Auto Defog sensor harness connector and Sensor ground (-) terminal of A/C-ECU harness connector. Specification: 1ohms below
  4. Is the measured resistance within specification? YES Go to " «COMPONENT INSPECTION»(ref-345976-S31985104022009102300000) " procedure. NO Check for open in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S16042635522009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Auto Defog sensor and A/C control unit main harness connector.
  3. Measure resistance between OPEN terminal of Auto Defog sensor harness connector and OPEN terminal of A/C-ECU harness connector.
  4. Measure resistance between CLOSE terminal of Auto Defog sensor harness connector and CLOSE terminal of A/C-ECU harness connector. Specification: 1ohms below
  5. Is the measured resistance within specification? YES Go to " «CHECK SHORT TO GROUND IN HARNESS»(ref-345976-S29865615512009102300000) " as follows. NO Check for open in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S17900245182009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Auto Defog actuator and A/C control unit main harness connector.
  3. Measure resistance between OPEN terminal of Auto Defog actuator harness connector and chassis ground.
  4. Measure resistance between CLOSE terminal of Auto Defog actuator harness connector and chassis ground. Specification: Infinity
  5. Is the measured resistance within specification? YES Go to " «COMPONENT INSPECTION»(ref-345976-S18790017702009102300000) " procedure. NO Check for short to ground in control harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S17900245182009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Driver air mix actuator and A/C control unit main harness connector.
  3. Measure resistance between WARM terminal of Driver air mix actuator harness connector and WARM terminal of A/C-ECU harness connector.
  4. Measure resistance between COOL terminal of Driver air mix actuator harness connector and COOL terminal of A/C-ECU harness connector. Specification: 1ohms below
  5. Is the measured resistance within specification? YES Go to " «CHECK SHORT TO GROUND IN HARNESS»(ref-345976-S41412562572009102300000) " as follows. NO Check for open in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S07721381362009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Driver air mix actuator and A/C control unit main harness connector.
  3. Measure resistance between WARM terminal of Driver air mix actuator harness connector and chassis ground.
  4. Measure resistance between COOL terminal of Driver air mix actuator harness connector and chassis ground. Specification: Infinity
  5. Is the measured resistance within specification? YES Go to " «COMPONENT INSPECTION»(ref-345976-S32590325372009102300000) " procedure. NO Check for short to ground in control harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S07721381362009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Intake actuator and A/C control unit main harness connector.
  3. Measure resistance between FRE (+) terminal of Intake actuator harness connector and FRE (+) terminal of A/C-ECU harness connector.
  4. Measure resistance between REC (-) terminal of Intake actuator harness connector and REC (-) terminal of A/C-ECU harness connector. Specification: 1ohms below
  5. Is the measured resistance within specification? YES Go to " «CHECK SHORT TO GROUND IN HARNESS»(ref-345976-S26473653582009102300000) " as follows. NO Check for open in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S41839993292009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Intake actuator and A/C control unit main harness connector.
  3. Measure resistance between FRE (+) terminal of Intake actuator harness connector and chassis ground.
  4. Measure resistance between REC (-) terminal of Intake actuator harness connector and chassis ground. Specification: Infinity
  5. Is the measured resistance within specification? YES Go to " «COMPONENT INSPECTION»(ref-345976-S25512382002009102300000) " procedure. NO Check for short to ground in control harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S41839993292009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Driver Direction actuator and A/C control unit main harness connector.
  3. Measure resistance between DEF terminal of Driver Direction actuator harness connector and DEF terminal of A/C-ECU harness connector.
  4. Measure resistance between VENT terminal of Driver Direction actuator harness connector and VENT terminal of A/C-ECU harness connector. Specification: 1ohms below
  5. Is the measured resistance within specification? YES Go to " «CHECK SHORT TO GROUND IN HARNESS»(ref-345976-S28581075942009102300000) " as follows. NO Check for open in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S03854880392009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Driver Direction actuator and A/C control unit main harness connector.
  3. Measure resistance between DEF terminal of Driver Direction actuator harness connector and chassis ground.
  4. Measure resistance between VENT terminal of Driver Direction actuator harness connector and chassis ground. Specification: Infinity
  5. Is the measured resistance within specification? YES Go to " «COMPONENT INSPECTION»(ref-345976-S13822325112009102300000) " procedure. NO Check for short to ground in control harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S03854880392009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect passenger air mix actuator and A/C control unit main harness connector.
  3. Measure resistance between WARM terminal of passenger air mix actuator harness connector and WARM terminal of A/C-ECU harness connector.
  4. Measure resistance between COOL terminal of passenger air mix actuator harness connector and COOL terminal of A/C-ECU harness connector. Specification: 1ohms below
  5. Is the measured resistance within specification? YES Go to " «CHECK SHORT TO GROUND IN HARNESS»(ref-345976-S42279366932009102300000) " as follows. NO Check for open in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S32170369392009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect passenger air mix actuator and A/C control unit main harness connector.
  3. Measure resistance between WARM terminal of passenger air mix actuator harness connector and chassis ground.
  4. Measure resistance between COOL terminal of passenger air mix actuator harness connector and chassis ground. Specification: Infinity
  5. Is the measured resistance within specification? YES Go to " «COMPONENT INSPECTION»(ref-345976-S24051713062009102300000) " procedure. NO Check for short to ground in control harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S32170369392009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Console temp actuator and A/C control unit main harness connector.
  3. Measure resistance between WARM terminal of Console temp actuator harness connector and WARM terminal of A/C-ECU harness connector.
  4. Measure resistance between COOL terminal of Console temp actuator harness connector and COOL terminal of A/C-ECU harness connector. Specification: 1ohms below
  5. Is the measured resistance within specification? YES Go to " «CHECK SHORT TO GROUND IN HARNESS»(ref-345976-S26635201122009102300000) " as follows. NO Check for open in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S29367591902009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Console temp actuator and A/C control unit main harness connector.
  3. Measure resistance between WARM terminal of Console temp actuator harness connector and chassis ground.
  4. Measure resistance between COOL terminal of Console temp actuator harness connector and chassis ground. Specification: Infinity
  5. Is the measured resistance within specification? YES Go to " «COMPONENT INSPECTION»(ref-345976-S21941095602009102300000) " procedure. NO Check for short to ground in control harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S29367591902009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Console temp actuator "A" and A/C control unit main harness connector.
  3. Measure resistance between WARM terminal of Console temp actuator "A" harness connector and WARM terminal of A/C-ECU harness connector.
  4. Measure resistance between COOL terminal of Console temp actuator "A" harness connector and COOL terminal of A/C-ECU harness connector. Specification: 1ohms below
  5. Is the measured resistance within specification? YES Go to " «CHECK SHORT TO GROUND IN HARNESS»(ref-345976-S03411712442009102300000) " as follows. NO Check for open in harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S13564632372009102300000) " procedure.
  1. Ignition "OFF"
  2. Disconnect Console temp actuator "A" and A/C control unit main harness connector.
  3. Measure resistance between WARM terminal of Console temp actuator "A" harness connector and chassis ground.
  4. Measure resistance between COOL terminal of Console temp actuator "A" harness connector and chassis ground. Specification: Infinity
  5. Is the measured resistance within specification? YES Go to " «COMPONENT INSPECTION»(ref-345976-S34059209432009102300000) " procedure. NO Check for short to ground in control harness. Repair as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S13564632372009102300000) " procedure.

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