Car heater and air conditioner Honda Fit/Jazz 1

Refrigerant Safety Precautions
Always follow safety regulations when handling refrigerant. 1. Do not work with refrigerant in an enclosed space or near an open flame. 2. Always wear safety glasses. 3. Be careful not to get refrigerant on your skin,...

Location of heating system components
Location of components (right hand drive models). 1 - heater fan motor relay, 2 - condenser fan motor relay, cooling system fan motor relay, air conditioning compressor electromagnetic clutch relay, 3 - noise...

Checking the Heater Fan Motor Circuit (Right Hand Drive Models)
1. Check fuse #5 (40A) relay block. If the fuse is defective, it should be replaced, if it is good, proceed to step number 2. 2. Remove and check the heater fan motor relay. If the relay is OK, proceed to step number 3,...

Vacuum, charge and system test
Attention: If there is a refrigerant leak, ventilate the room before topping up the system. Additional information on safe handling of refrigerant and compressor oil can be obtained from their instructions for use. When...

Checking the Heater Fan Motor Circuit (LHD Models)
1. Turn the ignition key to position "ON" and turn on the heater fan. If the rotation speed of the heater fan motor changes in accordance with the specified modes of the rotation speed switch, then continue checking...

Tightening torques for threaded connections of the air conditioning system
Tightening torques for threaded connections of the air conditioning system (right hand drive models). Tightening torques for threaded connections of the air conditioning system (left hand drive models).

Check Condenser Fan Circuit (Right Hand Drive Models)
1. Remove the condenser fan motor relay from the relay box and test it. If the relay is faulty, then it should be replaced, if the relay is OK, then proceed to step number 2. 2. Measure the voltages between the pin "2"...

Check Condenser Fan Circuit (LHD Models)
Note: Do not use this troubleshooting algorithm if the fan is not running and the air conditioner is on. 1. Check fuse #11 (30 A) relay block and fuse No. 10 (7.5 A) fuse block. If the fuses are faulty, then they should...

Checking the common circuit of the radiator and condenser fans
Right hand drive models 1. Turn off the air conditioner. Turn the ignition key to position "ON". 2. Check the voltage between the output "6" connector of the electronic control unit for the injection system and mass. If...

Checking the Radiator Fan Circuit (Right Hand Drive Models)
1. Check fuse #10 (20 A) relay block, if the fuse is defective, it should be replaced if it is good; proceed to point number 2. 2. Remove and check the cooling fan motor relay. If the relay is OK, proceed to step number...

Checking the Heater Fan Speed Switch Circuit (RHD Models)
1. Disconnect the heater blower motor connector. 2. Disconnect the heater fan resistor connector. 3. Disconnect the heater fan speed switch connector. 4. Check continuity between ground and terminals "1", "2", "4" And...

Checking the air conditioning circuits (right-hand drive models)
1. Disconnect the pressure switch connector. 2. Turn the ignition key to position "ON". 3. Measure the voltage between the pin "2" pressure and ground switch connector. If the voltage is 4.30-5.25 V, proceed to step No....

Checking the air conditioning circuits (left-hand drive models)
1. Disconnect the magnetic clutch connector. 2. Turn the ignition key to position "ON". 3. Measure voltage between terminal #3 of the solenoid clutch connector and ground. If the voltage is approximately 5 V, then...

Checking the Electromagnetic Clutch Circuit (Right Hand Drive Models)
1. Check the electromagnetic clutch relay. If the relay is OK, proceed to step number 2, if it is faulty, it should be replaced. 2. Measure the voltage between the terminal "2" electromagnetic clutch relay connector and...

Checking the Magnetic Clutch Circuit (LHD Models)
1. Check fuse #11 (30 A) relay block and fuse No. 10 (7.5 A) fuse box.. If the fuses are good, proceed to step number 2, if the fuses are bad, then replace them and repeat the test. 2. Connect the diagnostic tester to...

Heater fan unit — removal and installation
Note: Install in the reverse order of removal, check for air leaks after installation. 1. Remove the dashboard. 2. Disconnect the air intake damper cable. 3. Disconnect the motor connector (1). Remove the bolt, remove...

Replacing Heater Fan Assembly Components
The heater fan motor and filter can be replaced without removing the heater fan assembly. The heater motor is secured with three screws as shown. 1 - heater fan motor assembly with fan, 2 - filter.

Air conditioning and heater unit — removal and disassembly
Note: Before removing, read the chapter " Safety system (SRS) ". Installation is made in an order, the return to removal. Assembly is carried out in the reverse order of disassembly. When installing, do not confuse the...

Air mixing damper cable adjustment
1. Release the latch (1), disconnect the cable (2) from the air mixing damper drive lever (3). Right hand drive models. Left hand drive models. 2. Set the temperature mode selector to "Max Cool". 3. Turn the air mixing...

Air direction damper cable adjustment
1. Release the latch (1), disconnect the cable (2) from the air flow direction damper actuator (3). Right hand drive models. Left hand drive models. 2. Set the airflow direction switch to "Vent". 3. Turn the airflow...

Air intake damper cable adjustment
1. Release the latch (1), disconnect the cable (2) from the air intake damper actuator (3). Right hand drive models. Left hand drive models. 2. Turn on recirculation. 3. Turn the air intake flap control lever to the...

Air conditioning compressor — removal and installation
Note: Installation is made in an order, the return to removal. Replace all O-rings with new ones before installation. Never mix or re-drink used compressor oil, as this may contaminate the system. Never allow...

Electromagnetic clutch — check
1. Make sure the pressure plate is not damaged. 2. Rotate the pulley by hand to make sure it rotates without difficulty or noise. 3. Measure the gap between the pressure plate and the pulley using a special set of...

Electromagnetic clutch — disassembly and assembly
Note: Assembly is in the reverse order of disassembly. 1. Using a special tool, fix the pressure plate and unscrew the central nut. Torque: left-hand drive models - 26 Nm right-hand drive models - 18 Nm Electromagnetic...

Removal and installation of the thermal fuse of the electromagnetic clutch
Note: Installation is in the reverse order of removal. 1. Disconnect the connectors. Left hand drive models. 1 - wire clamp from the coupling winding, 2 - connector of the clutch winding wire, 3 - thermal fuse. Right...

Removal and installation of the air conditioner condenser
Note: Installation is in reverse order of removal. 1. Remove the refrigerant from the system. 2. Remove the front bumper. 3. Turn away a bolt and a nut and disconnect an inlet and outlet tubes of the condenser. Remove...

Removal and installation of the dehumidifier of the condenser of the conditioner
Note: Installation is in the reverse order of removal. 1. Remove the capacitor. 2. Remove the support, unscrew the cover, remove the O-rings, filter and dryer. 1 - support, 2 - cover, 3 - sealing ring, 4 - filter, 5 -...

Evaporator — removal and installation
Note: Installation is made in an order, the return to removal. When installing a new evaporator, fill it with a small amount of compressor oil. When installing, make sure the evaporator plate is on the correct side....

Air filter — removal and installation
Note: Installation is made in an order, the return to removal. Models for Canada (DX) not equipped with an air filter. 1. Remove the glove box. 2. Remove the filter holder complete with air filter. 3. Remove the air...

Air conditioning and heater control panel — removal and installation
Left hand drive models Note: Installation is made in an order, the return to removal. Adjust the damper cables after installation. After installation, make sure the switches work properly. 1. Remove the central trim of...

Air conditioning and heater control panel — disassembly and assembly
Note: Assembly is in the reverse order of disassembly. 1. Remove the air conditioning and heater control panel. 2. Remove the heater fan speed switch (see fig. "Disassembly and assembly of the control panel for air...

Checking the airflow direction switch
1. Remove the air conditioning and heater control panel. 2. Check continuity between terminals "3" And "4" connector of the air flow direction switch when the handle is rotated from the position "1" into position "2"....

Checking the heater fan speed switch
Make sure that the continuity between the terminals of the heater fan speed switch connector corresponds to the data given in the table.

Air conditioner switch — removal and installation
Note: Installation is in the reverse order of removal. 1. Remove the center trim. 2. Disconnect the connector and remove the switch. Left hand drive models. 1 - connector, 2 - air conditioner switch and rear window...

Air conditioner switch — check
1. Check for continuity between terminals according to the table below. Table. Left hand drive models. Table. Right hand drive models. 2. If the conductivity does not match, replace the bulbs or the air conditioner...

Diagnostics of the air conditioner with automatic control
1. Remove the bottom cover of the center trim. 2. Turn on the ignition ("ON") and read the fault codes by the number of flashes of the indicator of the electronic control unit for air conditioning and heater. Note: if...

Checking the Heater Fan Resistor (Manual Air Conditioner)
1. Remove the dashboard. 2. Disconnect the heater fan resistor connector. 3. Check the resistance between the terminals of the heater fan resistor connector. 4. If the resistances do not match those given in the table,...

Checking the temperature sensor downstream of the evaporator
1. Place the temperature probe behind the evaporator in a container of cold water and measure the resistance between the probe leads. 2. Gradually pouring hot water into the container, make sure that the resistance...

Air Conditioning Fault Codes
Table. Codes of malfunctions of the air conditioning system.

Removal and installation of the air temperature sensor in the passenger compartment (air conditioning with automatic control)
Note: Installation is in the reverse order of removal. 1. Remove a combination of devices. 2. Disconnect the air hose (A) and connector (IN). Loosen the screws and remove the sensor (WITH).

Removal and installation of the ambient temperature sensor (air conditioner with automatic control)
Note: Installation is in the reverse order of removal. Remove the sensor as shown in the figure.

Checking the Cabin Temperature Sensor and Ambient Temperature Sensor (Automatic Air Conditioner)
1. Check the change in resistance between the terminals of the sensor connector depending on the change in temperature. Cabin air temperature sensor. Ambient temperature sensor. 2. If the change in resistance does not...

Removal and installation of the sensor of a sunlight (air conditioner with automatic control)
Note: Installation is in the reverse order of removal. Remove the sensor from the dashboard and disconnect the connector.

Sunlight sensor test (automatic air conditioner)
1. Turn on the ignition ("ON"). 2. Check the voltage between the terminals "1" ("+") And "2" ("-") sensor connector in different lighting conditions. Voltage: the sensor is not illuminated - 3.6 - 3.7 V the sensor is...

Removal and installation of a drive of the damper of mixing of streams of air (air conditioner with automatic control)
Note: Installation is in the reverse order of removal. 1. Remove the lower furnish of the panel of devices from outside the passenger. 2. Disconnect the connector (A), unscrew the screws and remove the air mixing damper...

Checking the air mixing damper drive (air conditioner with automatic control)
1. Disconnect the air mixing damper actuator connector. 2. Connect the positive battery terminal to the terminal "1" drive connector, and negative - to the output "2" and check that the actuator operates in the...

Removal and installation of a drive of the gate of a direction of a stream of air (air conditioner with automatic control)
Note: Installation is in the reverse order of removal. 1. Remove the glove box. 2. Disconnect the connector (A), unscrew the fastening screws and remove the air flow direction damper actuator (IN).

Checking the Air Direction Damper Actuator (Automatic Air Conditioner)
1. Disconnect the throttle actuator connector. 2. Connect the positive battery terminal to the terminal "1" drive connector, and negative - to the output "2" and check that the actuator operates in the direction "VENT"....

Checking the power transistor (air conditioner with automatic control)
1. Remove the lower furnish of the panel of devices from outside the passenger. 2. Disconnect the power transistor connector. 3. Check the resistance between the terminals "3" And "4" power transistor. Rated resistance...

Self-diagnosis (additions for right-hand drive models from 06.2004)
1. Turn on the ignition ("ON"). 2. Press the switch "AUTO" and, without releasing it, on the switch "OFF" air conditioning and heater control panels. 3. By turning on the sectors of the temperature indicator, determine...

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