Home/Infiniti/M45/Infiniti M45 III (2005-2008)/Repair manual/Automatic Air Conditioner/Memory Function

Contents

Wiring diagrams Section: Automatic Air Conditioner

Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER"

Precautions Necessary for Steering Wheel Rotation After Battery Disconnect

Precautions for Procedures without Cowl Top Cover

Precautions for Working with HFC-134a (R-134a)

CONTAMINATED REFRIGERANT

General Refrigerant Precautions

Precautions for Refrigerant Connection

FUNCTIONS OF COMPONENT PARTS

FEATURES OF NEW TYPE REFRIGERANT CONNECTION

Precautions for Servicing Compressor

RECOVERY/RECYCLING EQUIPMENT

ELECTRICAL LEAK DETECTOR

VACUUM PUMP

MANIFOLD GAUGE SET

SERVICE HOSES

SERVICE COUPLERS

REFRIGERANT WEIGHT SCALE

CHARGING CYLINDER

Precautions for Leak Detection Dye

Special Service Tools

HFC-134a (R-134a) Service Tools and Equipment

Commercial Service Tools

REFRIGERANT FLOW

FREEZE PROTECTION

REFRIGERANT PRESSURE SENSOR

PRESSURE RELIEF VALVE

General

LUBRICANT

System Construction

TRANSMISSION DATA AND TRANSMISSION ORDER

AIR MIX DOOR CONTROL (AUTOMATIC TEMPERATURE CONTROL)

FAN SPEED CONTROL

INTAKE DOOR CONTROL

MODE DOOR CONTROL

UPPER VENTILATOR DOOR CONTROL

DISPLAY SCREEN

MODE SWITCH (DRIVER SIDE)

MODE SWITCH (PASSENGER SIDE)

TEMPERATURE CONTROL SWITCH (POTENTIO TEMPERATURE CONTROL) (DRIVER SIDE)

TEMPERATURE CONTROL SWITCH (POTENTIO TEMPERATURE CONTROL) (PASSENGER SIDE)

AUTO SWITCH

DEFROSTER (DEF) SWITCH

UPPER VENT SWITCH

A/C SWITCH

FAN SWITCHES

OFF SWITCH

REAR WINDOW DEFOGGER SWITCH

INTAKE SWITCH

DUAL SWITCH

FAN SWITCH

REAR TEMPERATURE CONTROL SWITCH

Fail-Safe Function

CONSULT-II Function (ECM)

Display Item List

Auto Amp. Terminals and Reference Value

TERMINALS AND REFERENCE VALUE FOR UNIFIED METER AND A/C AMP.

AUXILIARY MECHANISM: TEMPERATURE SETTING TRIMMER

AUXILIARY MECHANISM: FOOT POSITION SETTING TRIMMER

AUXILIARY MECHANISM: INLET PORT MEMORY FUNCTION

CHECKING MEMORY FUNCTION

CHECKING BLOWER

CHECKING DISCHARGE AIR (MODE SWITCH AND DEF SWITCH)

CHECKING DISCHARGE AIR (UPPER VENT SWITCH)

CHECKING INTAKE AIR

CHECKING TEMPERATURE DECREASE

CHECKING TEMPERATURE INCREASE

CHECKING A/C SWITCH

CHECKING AUTO MODE

Power Supply and Ground Circuit for Auto Amp.

Unified Meter and A/C Amp. (Automatic Amplifier)

Potentio Temperature Control (PTC)

LAN System Circuit

Mode Door Motor Circuit

Component Parts

Mode Door Motor

Upper Ventilator Door Motor Circuit

Upper Ventilator Door Motor

Air Mix Door Motor Circuit

Air Mix Door Motor

Air Mix Door Motor PBR Circuit

Intake Door Motor Circuit

Intake Door Motor

Blower Motor Circuit

Automatic Mode

Starting Fan Speed Control

Blower Speed Compensation

Brush-less Motor

Blower Motor

Magnet Clutch Circuit

Low Temperature Protection Control

Insufficient Cooling

Both High- and Low-pressure Sides are Too High

High-pressure Side is Too High and Low-pressure Side is Too Low

High-pressure Side is Too Low and Low-pressure Side is Too High

Both High- and Low-pressure Sides are Too Low

Low-pressure Side Sometimes Becomes Negative

Low-pressure Side Becomes Negative

Insufficient Heating

Memory Function

Ambient Sensor

AMBIENT TEMPERATURE INPUT PROCESS

In-vehicle Sensor

Aspirator

Sunload Sensor

SUNLOAD INPUT PROCESS

Intake Sensor

FUNCTION

Driver Side

Passenger Side

Discharging Refrigerant

Components

Check Disc to Pulley Clearance

Checking for Refrigerant Leaks

Checking System for Leaks Using the Fluorescent Leak Detector

Dye Injection

PRECAUTIONS FOR HANDLING LEAK DETECTOR

CHECKING PROCEDURE

Compressor

Refrigerant

Engine Idling Speed

Belt Tension

All sections

Memory Function Infiniti M45 III

Automatic Air Conditioner 1 illustration

Memory Function

SYMPTOM: Memory function does not operate.

Scheme 234

Scheme 234: INSPECTION FLOW

Scheme 234: INSPECTION FLOW

Footnote (Scheme 221)	Reference
*1	POWER SUPPLY AND GROUND CIRCUIT FOR AUTO AMP.
*2	Operational Check
*3	FUNCTION CONFIRMATION PROCEDURE