Heater And Air Conditioning Control System -- M37/M56

• Precaution
  • Precautions
    • Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER"
      • Notes
      • Precautions When Using Power Tools (Air Or Electric) And Hammers
• System Description
  • Component Parts
    • Automatic Air Conditioning System (With Forest Air)
      • AUTOMATIC AIR CONDITIONING SYSTEM (WITH FOREST AIR) : Component Parts Location
      • AUTOMATIC AIR CONDITIONING SYSTEM (WITH FOREST AIR) : Component Description
    • Automatic Air Conditioning System (Without Forest Air)
      • AUTOMATIC AIR CONDITIONING SYSTEM (WITHOUT FOREST AIR) : Component Parts Location
      • AUTOMATIC AIR CONDITIONING SYSTEM (WITHOUT FOREST AIR) : Component Description
    • Forest Air System
      • FOREST AIR SYSTEM : Component Parts Location
      • FOREST AIR SYSTEM : Component Description
    • Blower Unit
      • BLOWER UNIT : Aroma Motor
      • BLOWER UNIT : Blower Motor
      • BLOWER UNIT : Intake Door Motor
      • BLOWER UNIT : Power Transistor
    • Heater & Cooling Unit Assembly
      • HEATER & COOLING UNIT ASSEMBLY : Air Mix Door Motor (Driver Side)
      • HEATER & COOLING UNIT ASSEMBLY : Air Mix Door Motor (Passenger Side)
      • HEATER & COOLING UNIT ASSEMBLY : Aspirator
      • HEATER & COOLING UNIT ASSEMBLY : Mode Door Motor (Driver Side)
      • HEATER & COOLING UNIT ASSEMBLY : Mode Door Motor (Passenger side)
      • HEATER & COOLING UNIT ASSEMBLY : Rear Mode Door Motor
      • HEATER & COOLING UNIT ASSEMBLY : Upper Ventilator Door Motor
      • HEATER & COOLING UNIT ASSEMBLY : Upper Ventilator Door Motor (Driver Side)
      • HEATER & COOLING UNIT ASSEMBLY : Upper Ventilator Door Motor (Passenger Side)
    • Refrigerant Pressure Sensor
      • Description
      • Structure and operation
  • System
    • Automatic Air Conditioning System (With Forest Air)
      • AUTOMATIC AIR CONDITIONING SYSTEM (WITH FOREST AIR) : System Diagram
      • AUTOMATIC AIR CONDITIONING SYSTEM (WITH FOREST AIR) : System Description
      • AUTOMATIC AIR CONDITIONING SYSTEM (WITH FOREST AIR) : Air Flow Control
        • Description
        • Automatic Air Flow Control
        • Low Coolant Temperature Starting Control
        • Fan Speed Control At Door Motor Operation
        • Fan Speed Control At Voice Recognition
      • AUTOMATIC AIR CONDITIONING SYSTEM (WITH FOREST AIR) : Air Inlet Control
      • AUTOMATIC AIR CONDITIONING SYSTEM (WITH FOREST AIR) : Air Outlet Control
      • AUTOMATIC AIR CONDITIONING SYSTEM (WITH FOREST AIR) : Compressor Control
        • Description
        • Compressor Protection Control At Pressure Malfunction
        • Low Temperature Protection Control
        • Operating Rate Control
        • Air Conditioning Cut Control
      • AUTOMATIC AIR CONDITIONING SYSTEM (WITH FOREST AIR) : Door Control
        • Door Motor Control
        • Switches And Their Control Functions
        • Air Distribution
      • AUTOMATIC AIR CONDITIONING SYSTEM (WITH FOREST AIR) : Temperature Control
      • AUTOMATIC AIR CONDITIONING SYSTEM (WITH FOREST AIR) : Intelligent Key Interlock Function
        • Description
        • Operation Description
      • AUTOMATIC AIR CONDITIONING SYSTEM (WITH FOREST AIR) : Fail-safe
        • Fail-Safe Function
    • Automatic Air Conditioning System (Without Forest Air)
      • AUTOMATIC AIR CONDITIONING SYSTEM (WITHOUT FOREST AIR) : System Diagram
      • AUTOMATIC AIR CONDITIONING SYSTEM (WITHOUT FOREST AIR) : System Description
      • AUTOMATIC AIR CONDITIONING SYSTEM (WITHOUT FOREST AIR) : Air Flow Control
        • Description
        • Automatic Air Flow Control
        • Low Coolant Temperature Starting Control
        • Fan Speed Control At Door Motor Operation
        • Fan Speed Control At Voice Recognition (With NAVI)
      • AUTOMATIC AIR CONDITIONING SYSTEM (WITHOUT FOREST AIR) : Air Inlet Control
      • AUTOMATIC AIR CONDITIONING SYSTEM (WITHOUT FOREST AIR) : Air Outlet Control
      • AUTOMATIC AIR CONDITIONING SYSTEM (WITHOUT FOREST AIR) : Compressor Control
        • Description
        • Compressor Protection Control At Pressure Malfunction
        • Low Temperature Protection Control
        • Operating Rate Control
        • Air Conditioning Cut Control
      • AUTOMATIC AIR CONDITIONING SYSTEM (WITHOUT FOREST AIR) : Door Control
        • Door Motor Control
        • Switches And Their Control Functions
        • Air Distribution
      • AUTOMATIC AIR CONDITIONING SYSTEM (WITHOUT FOREST AIR) : Temperature Control
      • AUTOMATIC AIR CONDITIONING SYSTEM (WITHOUT FOREST AIR) : Intelligent Key Interlock Function
        • Description
        • Operation Description
      • AUTOMATIC AIR CONDITIONING SYSTEM (WITHOUT FOREST AIR) : Fail-safe
        • Fail-Safe Function
    • Forest Air System
      • FOREST AIR SYSTEM : System Diagram
      • FOREST AIR SYSTEM : System Description
      • FOREST AIR SYSTEM : Air Flow Control (Inside Odor Detecting Mechanism)
        • Description
        • Operation Description
      • FOREST AIR SYSTEM : Aroma Diffuser Control
        • Description
        • Operation Description
      • FOREST AIR SYSTEM : Automatic Defogging Control
        • Description
        • Operation Description
      • FOREST AIR SYSTEM : Automatic Intake Control (Exhaust Gas / Outside Odor Detecting Mechanism)
        • Description
        • Operation Description
      • FOREST AIR SYSTEM : Breezy Air Control
        • Description
        • Operation Description
      • FOREST AIR SYSTEM : Plasmacluster Control
        • Description
        • Operation Description
      • FOREST AIR SYSTEM : Intelligent Key Interlock Function
        • Description
        • Operation Description
  • Operation
    • Automatic Air Conditioning System (With Forest Air)
      • AUTOMATIC AIR CONDITIONING SYSTEM (WITH FOREST AIR) : Switch Name and Function
        • Operation And Display
      • AUTOMATIC AIR CONDITIONING SYSTEM (WITH FOREST AIR) : Menu Displayed by Pressing Each Switch
        • "Climate" Menu
    • Automatic Air Conditioning System (Without Forest Air)
      • AUTOMATIC AIR CONDITIONING SYSTEM (WITHOUT FOREST AIR) : Switch Name and Function
        • Operation And Display
      • AUTOMATIC AIR CONDITIONING SYSTEM (WITHOUT FOREST AIR) : Menu Displayed by Pressing Each Switch
        • "Climate" Menu
    • Forest Air System
      • FOREST AIR SYSTEM : Switch Name and Function
        • Operation And Display
      • FOREST AIR SYSTEM : Menu Displayed by Pressing Each Switch
        • "Climate" Menu
  • Diagnosis System (HVAC)
    • Description
    • CONSULT-III Function
      • Application Item
      • Ecu Identification
      • Self Diagnostic Result
      • Data Monitor
      • Active Test
      • Work Support
      • CONFIGRATION
• Ecu Diagnosis Information
  • A/C Auto Amp
    • Reference Value(AUTOMATIC AIR CONDITIONING)
      • Consult-III Data Monitor Reference Values
      • Terminal Layout
      • Physical Values
    • Fail-safe
      • Fail-Safe Function
    • DTC Index
  • ECM, IPDM E/R
    • List of ECU Reference
• Wiring Diagram
  • Automatic Air Conditioning System
    • Wiring Diagram
• Basic Inspection
  • Diagnosis And Repair Work Flow
    • Work Flow
      • Overall Sequence
      • Detailed Flow
  • Operation Inspection
    • Automatic Air Conditioning System (With Forest Air)
      • AUTOMATIC AIR CONDITIONING SYSTEM (WITH FOREST AIR) : Work Procedure
        • Description
        • Operation Inspection
    • Automatic Air Conditioning System (Without Forest Air)
      • AUTOMATIC AIR CONDITIONING SYSTEM (WITHOUT FOREST AIR) : Work Procedure
        • Description
        • Operation Inspection
    • Forest Air System
      • FOREST AIR SYSTEM : Work Procedure
        • Description
        • Operation Inspection
  • Additional Service When Replacing Control Unit (A/C Auto Amp.)
    • Description
      • Notes
      • Before Replacement
      • After Replacement
    • Work Procedure
  • Configuration (HVAC)
    • Description
    • Work Procedure
  • System Setting
    • Automatic Air Conditioning System
      • AUTOMATIC AIR CONDITIONING SYSTEM : Temperature Setting Trimmer
        • Description
        • How To Set
      • AUTOMATIC AIR CONDITIONING SYSTEM : Inlet Port Memory Function (REC)
        • Description
        • How To Set
      • AUTOMATIC AIR CONDITIONING SYSTEM : Inlet Port Memory Function (FRE)
        • Description
        • How To Set
      • AUTOMATIC AIR CONDITIONING SYSTEM : Foot Position Setting Trimmer
        • Description
        • How To Set
    • Forest Air System
      • FOREST AIR SYSTEM : Aroma Fragrance Intensity Setting
        • Description
        • How To Set
      • FOREST AIR SYSTEM : Aroma Fragrance Type Setting
        • Description
        • How To Set
      • FOREST AIR SYSTEM : Air Flow Control (Inside Odor Detecting Mechanism) Setting
        • Description
        • How To Set
      • FOREST AIR SYSTEM : Aroma Diffuser Presence Setting
        • Description
        • How To Set
• DTC/Circuit Diagnosis
  • DTC Index
  • DTC U1000: Can Comm Circuit
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
  • DTC U1010: Control Unit (Can)
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
  • DTC B2578, B2579: In-Vehicle Sensor
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection
  • DTC B257B, B257C: Ambient Sensor
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection
  • DTC B2581, B2582: Intake Sensor
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection
  • DTC B262A, B262B, B2657, B2658: Exhaust Gas/Outside Odor Detecting Sensor
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
  • DTC B2630, B2631: SUNLOAD Sensor
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection
  • DTC B2750, B2751, B2752: Air Mix Door Motor (Driver Side)
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection (Motor)
    • Component Inspection (PBR)
  • DTC B2753, B2754, B2755: Air Mix Door Motor (Passenger Side)
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection (Motor)
    • Component Inspection (PBR)
  • DTC B2756, B2757, B2758: Mode Door Motor (Driver Side)
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection (Motor)
    • Component Inspection (PBR)
  • DTC B2759, B275A, B275B: Mode Door Motor (Passenger Side)
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection (Motor)
    • Component Inspection (PBR)
  • DTC B275C, B275D, B275E: Intake Door Motor
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection (Motor)
    • Component Inspection (PBR)
  • DTC B275F, B2760, B2761: Upper Ventilator Door Motor
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection (Motor)
    • Component Inspection (PBR)
  • DTC B275F, B2760, B2761: Upper Ventilator Door Motor (Driver Side)
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection (Motor)
    • Component Inspection (PBR)
  • DTC B2762, B2763, B2764: Rear Mode Door Motor
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection (Motor)
    • Component Inspection (PBR)
  • DTC B2765, B2766, B2767: Upper Ventilator Door Motor (Passenger Side)
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection (Motor)
    • Component Inspection (PBR)
  • DTC B2768, B2769, B276A: Aroma Motor
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection (Motor)
    • Component Inspection (PBR)
  • DTC B276B, B276C, B276D: Humidity Sensor
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection
  • Power Supply And Ground Circuit
    • A/C Auto Amp
      • A/C AUTO AMP. : Diagnosis Procedure
    • Door Motor PBR (With Forest Air)
      • DOOR MOTOR PBR (WITH FOREST AIR) : Diagnosis Procedure
    • Door Motor PBR (Without Forest Air)
      • DOOR MOTOR PBR (WITHOUT FOREST AIR) : Diagnosis Procedure
  • Blower Motor
    • Diagnosis Procedure
    • Component Inspection (Blower Motor)
    • Component Inspection (Blower Relay)
  • ECV (Electrical Control Valve)
    • Diagnosis Procedure
    • Component Inspection
  • Inside Odor Detecting Sensor
    • Component Function Check
    • Diagnosis Procedure
    • Component Inspection
  • Ionizer
    • Component Function Check
    • Diagnosis Procedure
  • Magnet Clutch
    • Component Function Check
    • Diagnosis Procedure
• Symptom Diagnosis
  • Automatic Air Conditioning System (With Forest Air)
    • Symptom Table
  • Automatic Air Conditioning System (Without Forest Air)
    • Symptom Table
  • Forest Air System
    • Symptom Table
  • Compressor Dose Dot Operate
    • Description
    • Diagnosis Procedure
  • Insufficient Cooling
    • Description
    • Diagnosis Procedure
  • Insufficient Heating
    • Description
    • Diagnosis Procedure
  • Intelligent Key Interlock Function Does Not Operate
    • Description
    • Diagnosis Procedure
  • Normal Operating Condition
    • Description
      • Forest Air System
• Removal And Installation
  • MULTIFUNCTION Switch
    • Removal and Installation
      • Removal
      • Installation
  • A/C Auto Amp
    • Exploded View
    • Removal and Installation
      • Removal
      • Installation
  • Ambient Sensor
    • Removal and Installation
      • Removal
      • Installation
  • In-Vehicle Sensor
    • Removal and Installation
      • Removal
      • Installation
  • SUNLOAD Sensor
    • Removal and Installation
      • Removal
      • Installation
  • Humidity Sensor
    • Exploded View
    • Removal and Installation
      • Removal
      • Installation
  • Intake Sensor
    • Exploded View
    • Removal and Installation
      • Removal
      • Installation
  • Inside Odor Detecting Sensor
    • Exploded View
    • Removal and Installation
      • Removal
      • Installation
  • Exhaust Gas/Outside Odor Sensor
    • Removal and Installation
      • Removal
      • Installation
  • Door Motor
    • Exploded View
    • Mode Door Motor
      • MODE DOOR MOTOR : Removal and Installation
        • Removal
        • Installation
    • Air Mix Door Motor
      • AIR MIX DOOR MOTOR : Removal and Installation
        • Removal
        • Installation
    • Intake Door Motor
      • INTAKE DOOR MOTOR : Removal and Installation
        • Removal
        • Installation
    • Upper Ventilator Door Motor
      • UPPER VENTILATOR DOOR MOTOR : Removal and Installation
        • Removal
        • Installation
    • Rear Mode Door Motor
      • REAR MODE DOOR MOTOR : Removal and Installation
        • Removal
        • Installation
  • Power Transistor
    • Exploded View
    • Removal and Installation
      • Removal
      • Installation
  • Ionizer
    • Exploded View
    • Removal and Installation
      • Removal
      • Installation
  • Aroma Unit ASSY
    • Exploded View
    • Removal and Installation
      • Removal
      • Installation