Air Conditioning: Overview Lexus ES XV40

DESCRIPTION

This sensor detects the cabin temperature that is used as the basis for temperature control and sends a signal to the A/C amplifier.

DIAGNOSTIC TROUBLE CODE CHART

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1. READ VALUE OF INTELLIGENT TESTER Connect the intelligent tester to the DLC3. Turn the engine switch on (IG) and turn the intelligent tester main switch on. Select the item below in the DATA LIST, and read the display on the intelligent tester. DATA LIST / AIR CONDITIONER: DATA LIST Tester Display Measurement Item/Range Normal Condition Diagnostic Note ROOM TEMP Room temperature sensor/ Min.: -6.5°C (20.3°F), Max.: 57.25°C (135.05°F) Actual cabin temperature is displayed - OK: The display is as specified in the normal condition column. Result RESULT CHART Result Proceed to NG A OK (When troubleshooting according to the PROBLEM SYMPTOMS TABLE) B OK (When troubleshooting according to the DTC) C B: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-283108-S02001029892008041700000) C: REPLACE AIR CONDITIONING AMPLIFIER A: Go to Next Step
2. INSPECT AIR CONDITIONING AMPLIFIER Remove the A/C amplifier with the connectors still connected. Turn the engine switch on (IG). Measure the voltage according to the value (s) in the table below. Standard voltage AIR CONDITIONING AMPLIFIER VOLTAGE Tester Connection Condition Specified Condition E1-29 (TR) - E1-34 (SG-1) Engine switch on (IG) at 25°C (77°F) 1.35 to 1.75 V E1-29 (TR) - E1-34 (SG-1) Engine switch on (IG) at 40°C (104°F) 0.9 to 1.2 V HINT: As the temperature increases, the voltage decreases. Result RESULT CHART Result Proceed to NG A OK (When troubleshooting according to the PROBLEM SYMPTOMS TABLE) B OK (When troubleshooting according to the DTC) C B: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-283108-S02001029892008041700000) C: REPLACE AIR CONDITIONING AMPLIFIER A: Go to Next Step
3. INSPECT A/C ROOM TEMPERATURE SENSOR Remove the A/C room temperature sensor. Measure the resistance according to the value (s) in the table below. Standard resistance A/C ROOM TEMPERATURE SENSOR RESISTANCE Tester Connection Condition Specified Condition E4-1 - E4-2 10°C (50°F) 3.00 to 3.73 kohms E4-1 - E4-2 15°C (59°F) 2.45 to 2.88 kohms E4-1 - E4-2 20°C (68°F) 1.95 to 2.30 kohms E4-1 - E4-2 25°C (77°F) 1.60 to 1.80 kohms E4-1 - E4-2 30°C (86°F) 1.28 to 1.47 kohms E4-1 - E4-2 35°C (95°F) 1.00 to 1.22 kohms E4-1 - E4-2 40°C (104°F) 0.80 to 1.00 kohms E4-1 - E4-2 45°C (113°F) 0.65 to 0.85 kohms E4-1 - E4-2 50°C (122°F) 0.50 to 0.70 kohms E4-1 - E4-2 55°C (131°F) 0.44 to 0.60 kohms E4-1 - E4-2 60°C (140°F) 0.36 to 0.50 kohms NOTE: Hold the sensor only by its connector. Touching the sensor may change the resistance value. When measuring, the sensor temperature must be the same as the ambient temperature. HINT: As the temperature increases, the resistance decreases (see graph in (Scheme 3) ). NG: REPLACE A/C ROOM TEMPERATURE SENSOR OK: Go to Next Step
4. CHECK HARNESS AND CONNECTOR (A/C ROOM TEMPERATURE SENSOR - AIR CONDITIONING AMPLIFIER) Disconnect the connector from the A/C amplifier. Disconnect the connector from the A/C room temperature sensor. Measure the resistance according to the value (s) in the table below. Standard resistance A/C ROOM TEMPERATURE SENSOR - AIR CONDITIONING AMPLIFIER Tester Connection Condition Specified Condition E1-29 (TR) - E4-1 Always Below 1 ohms E1-34 (SG-1) - E4-2 Always Below 1 ohms E1-29 (TR) - Body ground Always 10 kohms or higher E1-34 (SG-1) - Body ground Always 10 kohms or higher NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: REPLACE AIR CONDITIONING AMPLIFIER

The ambient temperature sensor is installed in front of the condenser to detect the ambient temperature which is used to control the air conditioner "AUTO" mode. This sensor is connected to the A/C amplifier and detects fluctuations in the ambient temperature. This data is used for controlling the cabin temperature. The sensor sends a signal to the A/C amplifier. The resistance of the ambient temperature sensor changes in accordance with the ambient temperature. As the temperature decreases, the resistance increases. As the temperature increases, the resistance decreases.

The A/C amplifier applies voltage (5 V) to the ambient temperature sensor and reads voltage changes as the resistance of the ambient temperature sensor changes.

DIAGNOSTIC TROUBLE CODE CHART

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1. READ VALUE OF INTELLIGENT TESTER Connect the intelligent tester to the DLC3. Turn the engine switch on (IG) and turn the intelligent tester main switch on. Select the item below in the DATA LIST, and read the display on the intelligent tester. DATA LIST / AIR CONDITIONER: DATA LIST Tester Display Measurement Item/Range Normal Condition Diagnostic Note AMBI TEMP SENS (Ambient temperature sensor) Ambient temperature sensor / Min: -23.3°C (-9.94°F), Max: 65.95°C (150.71°F) Actual ambient temperature is displayed Open in circuit: -23.3°C (-9.94°F) Short in circuit: 65.95°C (150.71°F) OK: The display is as specified in the normal condition column. Result RESULT CHART Result Proceed to NG A OK (When troubleshooting according to the PROBLEM SYMPTOMS TABLE) B OK (When troubleshooting according to the DTC) C B: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-283108-S02001029892008041700000) C: REPLACE AIR CONDITIONING AMPLIFIER A: Go to Next Step
2. INSPECT AIR CONDITIONING AMPLIFIER Remove the A/C amplifier with the connector still connected. Turn the engine switch on (IG). Measure the voltage according to the value (s) in the table below. Standard voltage AIR CONDITIONING AMPLIFIER Tester Connection Condition Specified Condition E1-5 (TAM) - E1-13 (SG-2) Engine switch on (IG) at 25°C (77°F) 1.35 to 1.75 V E1-5 (TAM) - E1-13 (SG-2) Engine switch on (IG) at 40°C (104°F) 0.9 to 1.2 V HINT: As the temperature increases, the voltage decreases. Result RESULT CHART Result Proceed to NG A OK (When troubleshooting according to the PROBLEM SYMPTOMS TABLE) B OK (When troubleshooting according to the DTC) C B: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-283108-S02001029892008041700000) C: REPLACE AIR CONDITIONING AMPLIFIER A: Go to Next Step
3. INSPECT AMBIENT TEMPERATURE SENSOR Remove the ambient temperature sensor. Measure the resistance according to the value (s) in the table below. Standard resistance AMBIENT TEMPERATURE SENSOR Tester Connection Condition Specified Condition A5-1 - A5-2 10°C (50°F) 3.00 to 3.73 kohms A5-1 - A5-2 15°C (59°F) 2.45 to 2.88 kohms A5-1 - A5-2 20°C (68°F) 1.95 to 2.30 kohms A5-1 - A5-2 25°C (77°F) 1.60 to 1.80 kohms A5-1 - A5-2 30°C (86°F) 1.28 to 1.47 kohms A5-1 - A5-2 35°C (95°F) 1.00 to 1.22 kohms A5-1 - A5-2 40°C (104°F) 0.80 to 1.00 kohms A5-1 - A5-2 45°C (113°F) 0.65 to 0.85 kohms A5-1 - A5-2 50°C (122°F) 0.50 to 0.70 kohms A5-1 - A5-2 55°C (131°F) 0.44 to 0.60 kohms A5-1 - A5-2 60°C (140°F) 0.36 to 0.50 kohms NOTE: Even slightly touching the sensor may change the resistance value. Be sure to hold the connector of the sensor. When measuring, the sensor temperature must be the same as the ambient temperature. HINT: As the temperature increases, the resistance decreases (see the graph). NG: REPLACE AMBIENT TEMPERATURE SENSOR OK: Go to Next Step
4. CHECK HARNESS AND CONNECTOR (AMBIENT TEMPERATURE SENSOR - A/C AMPLIFIER) Disconnect the ambient temperature sensor connector. Disconnect the A/C amplifier connector. Measure the resistance according to the value (s) in the table below. Standard resistance AMBIENT TEMPERATURE SENSOR - A/C AMPLIFIER Tester Connection Condition Specified Condition A5-2 - E1-5 (TAM) Always Below 1 ohms A5-1 - E1-13 (SG-2) Always Below 1 ohms E1-5 (TAM) - Body ground Always 10 kohms or higher E1-13 (SG-2) - Body ground Always 10 kohms or higher NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: REPLACE AIR CONDITIONING AMPLIFIER

The evaporator temperature sensor (A/C thermistor) is installed on the evaporator in the air conditioner unit. It detects the temperature of the cooled air that has passed through the evaporator and its signal is used to control the air conditioning. It sends a signal to the A/C amplifier. The resistance of the evaporator temperature sensor (A/C thermistor) changes in accordance with the temperature of the cooled air that has passed through the evaporator. As the temperature decreases, the resistance increases. As the temperature increases, the resistance decreases.

The A/C amplifier applies voltage (5 V) to the evaporator temperature sensor (A/C thermistor) and reads voltage changes as the resistance of the evaporator temperature sensor (A/C thermistor) changes. This sensor is used to prevent the evaporator from freezing.

DIAGNOSTIC TROUBLE CODE CHART

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1. READ VALUE OF INTELLIGENT TESTER Connect the intelligent tester to the DLC3. Turn the engine switch on (IG) and turn the intelligent tester main switch on. Select the item below in the DATA LIST, and read the display on the intelligent tester. DATA LIST / AIR CONDITIONER: DATA LIST Tester Display Measurement Item/Range Normal Condition Diagnostic Note EVAP FIN TEMP (Evaporator fin thermistor) Evaporator fin thermistor / Min.: -29.7°C (-21.46-F), Max.: 59.55°C (139.19°F) Actual evaporator temperature is displayed Open in circuit: -29.7°C (-21.46°F) Short in circuit: 59.55°C (139.19°F) OK: The display is as specified in the normal condition column. Result RESULT CHART Result Proceed to NG A OK (When troubleshooting according to the PROBLEM SYMPTOMS TABLE) B OK (When troubleshooting according to the DTC) C B: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-283108-S02001029892008041700000) C: REPLACE AIR CONDITIONING AMPLIFIER A: Go to Next Step
2. INSPECT AIR CONDITIONING HARNESS Remove the air conditioning harness (evaporator temperature sensor). Measure the resistance according to the value (s) in the table below. Standard resistance AIR CONDITIONING HARNESS Tester Connection Condition Specified Condition Y1-5 - Y1-6 -10°C (14°F) 7.30 to 9.10 kohms Y1-5 - Y1-6 -5°C (23°F) 5.65 to 6.95 kohms Y1-5 - Y1-6 0°C (32°F) 4.40 to 5.35 kohms Y1-5 - Y1-6 5°C (41°F) 3.40 to 4.15 kohms Y1-5 - Y1-6 10°C (50°F) 2.70 to 3.25 kohms Y1-5 - Y1-6 15°C (59°F) 2.14 to 2.58 kohms Y1-5 - Y1-6 20°C (68°F) 1.71 to 2.05 kohms Y1-5 - Y1-6 25°C (77°F) 1.38 to 1.64 kohms Y1-5 - Y1-6 30°C (86°F) 1.11 to 1.32 kohms NOTE: Even slightly touching the sensor may change the resistance value. Be sure to hold the connector of the sensor. When measuring, the sensor temperature must be the same as the ambient temperature. HINT: As the temperature increases, the resistance decreases (see graph in (Scheme 12) ). NG: REPLACE AIR CONDITIONING HARNESS OK: REPLACE AIR CONDITIONING AMPLIFIER

The smog ventilation sensor, which is installed on the front of the condenser, is used for automatic air inlet control. This sensor detects CO and HC in the emission gas and transmits signals to the A/C amplifier.

DIAGNOSTIC TROUBLE CODE CHART

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1. INSPECT FUSE (LH-IG) Remove the LH-IG fuse from the cowl side junction block LH. Measure the resistance according to the value (s) in the table below. Standard resistance FUSE (LH-IG) Tester Item Condition Specified Condition LH-IG fuse Always Below 1 ohms NG: REPLACE FUSE (LH-IG) OK: Go to Next Step
2. READ VALUE OF INTELLIGENT TESTER Connect the intelligent tester to the DLC3. Turn the engine switch on (IG) and turn the intelligent tester main switch on. Allow exhaust gas (HC, CO) to travel to the sensing portion of the smog ventilation sensor. Select the item below in the DATA LIST, and read the display on the intelligent tester. DATA LIST / AIR CONDITIONER: DATA LIST Tester Display Measurement Item/Range Normal Condition Diagnostic Note EMISS GAS SENS (Emission gas sensor) Emission gas / Min.: 0 V, Max.: 255 V Smog ventilation sensor value increases as gas amount increases - OK: The display is as specified in the normal condition column. Result RESULT CHART Result Proceed to NG A OK (When troubleshooting according to the PROBLEM SYMPTOMS TABLE) B OK (When troubleshooting according to the DTC) C B: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-283108-S02001029892008041700000) C: REPLACE AIR CONDITIONING AMPLIFIER A: Go to Next Step
3. CHECK HARNESS AND CONNECTOR (SMOG VENTILATION SENSOR - BODY GROUND) Disconnect the smog ventilation sensor connector. Measure the resistance according to the value (s) in the table below. Standard resistance SMOG VENTILATION SENSOR - BODY GROUND Tester Connection Condition Specified Condition A37-6 (E) - Body ground Always Below 1 ohms NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to Next Step
4. CHECK HARNESS AND CONNECTOR (SMOG VENTILATION SENSOR - BATTERY) Disconnect the smog ventilation sensor connector. Measure the voltage according to the value (s) in the table below. Standard voltage SMOG VENTILATION SENSOR - BATTERY Tester Connection Condition Specified Condition A37-3 (IG) - Body ground Engine switch on (IG) 10 to 14 V Engine switch off Below 1 V NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to Next Step
5. INSPECT SMOG VENTILATION SENSOR Remove the smog ventilation sensor. Apply battery voltage between terminals 3 (IG) and 6 (E). Allow exhaust gas (HC, CO) to travel to the sensing portion of the smog ventilation sensor, and measure the resistance between terminals 1 (SG) and 2 (DGS). OK: When the sensor is exposed to the exhaust gas, the resistance increases. HINT: The resistance before blowing exhaust gas is 10 kohms to 40 kohms. NG: REPLACE SMOG VENTILATION SENSOR OK: Go to Next Step
6. CHECK HARNESS AND CONNECTOR (SMOG VENTILATION SENSOR - A/C AMPLIFIER) Disconnect the smog ventilation sensor. Disconnect the A/C amplifier connector. Measure the resistance according to the value (s) in the table below. Standard resistance SMOG VENTILATION SENSOR - A/C AMPLIFIER Tester Connection Condition Specified Condition A37-1 (SG) - E1-13 (SG-2) Always Below 1 ohms A37-2 (DGS) - E1-6 (DGS) Always Below 1 ohms E1-13 (SG-2) - Body ground Always 10 kohms or higher E1-6 (DGS) - Body ground Always 10 kohms or higher NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: REPLACE AIR CONDITIONING AMPLIFIER

Scheme 19

The solar sensor, which is installed on the upper side of the instrument panel, detects sunlight and controls the air conditioning in AUTO mode. The output voltage from the solar sensor varies according to the amount of sunlight. When the sunlight increases, the output voltage increases. As the sunlight decreases, the output voltage decreases. The A/C amplifier detects voltage output from the solar sensor.

DIAGNOSTIC TROUBLE CODE CHART

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SYSTEM DESCRIPTION

The ECM sends an engine speed signal to the A/C amplifier via CAN communication.

The A/C amplifier reads the difference between compressor speed and engine speed. When the difference becomes too large, the A/C amplifier determines that the compressor locks, and turns the magnetic clutch off.

DIAGNOSTIC TROUBLE CODE CHART

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1. CHECK CAN COMMUNICATION SYSTEM Use the intelligent tester to check if the CAN Communication System is functioning normally. Result RESULT CHART Result Proceed to CAN DTC is not output A CAN DTC is output B B: GO TO CAN COMMUNICATION SYSTEM (See «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-283107-S06034118862008041700000) ) A: Go to Next Step
2. INSPECT AIR CONDITIONING AMPLIFIER Remove the A/C amplifier with the connectors still connected. Measure the waveform of the connector. WAVEFORM OF CONNECTOR Item Contents Tool setting 200 mV/DIV., 10ms./DIV. Vehicle condition Engine is running A/C switch: ON Blower switch: LO Standard AIR CONDITIONING AMPLIFIER Tester Connection (Symbols) Condition Specified Condition E1-8 (LOCK) - E1-13 (SG-2) Engine is running A/C switch: ON Blower switch: LO Pulse generation Result RESULT CHART Result Proceed to NG A OK (When troubleshooting according to the PROBLEM SYMPTOMS TABLE) B OK (When troubleshooting according to the DTC) C B: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-283108-S02001029892008041700000) C: REPLACE AIR CONDITIONING AMPLIFIER A: Go to Next Step
3. INSPECT COMPRESSOR AND MAGNETIC CLUTCH (A/C LOCK SENSOR) Disconnect the connector from the A/C compressor. Measure the resistance according to the value (s) in the table below. Standard resistance COMPRESSOR AND MAGNETIC CLUTCH (A/C LOCK SENSOR) Tester Connection Condition Specified Condition B2-1 (SSR+) - B2-2 (SSR-) Always (at 20°C (68°F)) 165 to 205 ohms NG: REPLACE COMPRESSOR AND MAGNETIC CLUTCH (A/C LOCK SENSOR) OK: Go to Next Step
4. CHECK HARNESS AND CONNECTOR (A/C AMPLIFIER - A/C LOCK SENSOR) Disconnect the connector from the A/C amplifier. Measure the resistance according to the value (s) in the table below. Standard resistance A/C AMPLIFIER - A/C LOCK SENSOR Tester Connection (Symbols) Condition Specified Condition E1-8 (LOCK) - B2-1 (SSR+) Always Below 1 ohms E1-13 (SG-2) - B2-2 (SSR-) Always Below 1 ohms E1-8 (LOCK) - Body ground Always 10 kohms or higher E1-13 (SG-2) - Body ground Always 10 kohms or higher NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: REPLACE AIR CONDITIONING AMPLIFIER

This DTC is output when refrigerant pressure is extremely low (0.19 MPa (2.0 kgf/cm 2 , 28 psi) or less) or extremely high (3.14 MPa (32.0 kgf/cm 2 ,455 psi) or more). The A/C pressure sensor, which is installed on the pipe of the high pressure side to detect refrigerant pressure, outputs a refrigerant pressure signal to the A/C amplifier. The A/C amplifier converts this signal to pressure according to the sensor characteristics to control the compressor.

HINT

Be sure to check the refrigerant volume first when this DTC is output because this DTC can also be output if there is no refrigerant in the system.

DIAGNOSTIC TROUBLE CODE CHART

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1. CHECK REFRIGERANT Check the sight glass of the cooler unit refrigerant liquid pipe. Prepare the vehicle according to the chart below. REFRIGERANT CHART Item Condition Vehicle Doors Fully open Temperature Setting MAX COLD Blower Speed HI A/C ON Compare the sight glass to the following chart. SIGHT GLASS REFERENCE CHART Item Symptom Amount of Refrigerant Corrective Actions 1 Bubbles visible Insufficient (1) Check for gas leakage and repair if necessary Recharge with proper amount of refrigerant (See «REPLACEMENT»(ref-283108-S11484630632008041700000) ) 2 No bubbles visible Empty, insufficient, or excessive Refer to 3 and 4 3 No temperature difference between compressor inlet and outlet Empty or nearly empty Check for gas leakage with gas leak detector and repair if necessary Evacuate A/C system and recharge with proper amount of refrigerant (See «REPLACEMENT»(ref-283108-S11484630632008041700000) ) 4 Considerable temperature difference between compressor inlet and outlet Proper or excessive Refer to 5 and 6 5 Immediately after air conditioning is turned OFF, refrigerant clears Excessive Recover refrigerant Evacuate A/C system and recharge with proper amount of refrigerant (See «REPLACEMENT»(ref-283108-S11484630632008041700000) ) 6 Immediately after air conditioning is turned OFF, refrigerant foams and then becomes clear Proper - (1) Bubbles in the sight glass with the vehicle interior temperature above 35°C (95°F) can be considered normal if cooling is sufficient. NG: CHARGE REFRIGERANT OK: Go to Next Step
2. CHECK HARNESS AND CONNECTOR (PRESSURE SENSOR - A/C AMPLIFIER) Disconnect the pressure sensor connector. Disconnect the A/C amplifier connector. Measure the resistance according to the value (s) in the table below. Standard resistance PRESSURE SENSOR - A/C AMPLIFIER Tester Connection Condition Specified Condition A1-2 (PR) - E1-9 (PRE) Always Below 1 ohms A1-3 (+) - E1-10 (S5-3) Always Below 1 ohms A1-1 (-) - E1-13 (SG-2) Always Below 1 ohms E1-9 (PRE) - Body ground Always 10 kohms or higher E1-10 (S5-3) - Body ground Always 10 kohms or higher E1-13 (SG-2) - Body ground Always 10 kohms or higher NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to Next Step
3. INSPECT PRESSURE SENSOR Install the manifold gauge set (See «ON-VEHICLE INSPECTION»(ref-283108-S07691190632008041700000) ). Connect the three 1.5 V dry cell batteries' positive (+) lead to terminal 3, and the negative (-) lead to terminal 1. Then connect the voltmeter's positive (+) lead to terminal 2, and the negative (-) lead to terminal 1. Measure the voltage. OK: The voltage changes according to refrigerant pressure, as shown in the graph. Result PRESSURE SENSOR Result Proceed to NG A OK (When troubleshooting according to the DTC) B OK (When troubleshooting according to the PROBLEM SYMPTOMS TABLE) C B: REPLACE AIR CONDITIONING AMPLIFIER C: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-283108-S02001029892008041700000) A: REPLACE PRESSURE SENSOR

The solar sensor, which is installed on the upper side of the instrument panel, detects sunlight and controls the air conditioning in AUTO mode. The output voltage from the solar sensor varies according to the amount of sunlight. When the sunlight increases, the output voltage increases. As the sunlight decreases, the output voltage decreases. The A/C amplifier detects output voltage from the solar sensor.

DIAGNOSTIC TROUBLE CODE CHART

Scheme 32

The air mix damper servo sends pulse signals to inform the air conditioning amplifier of the damper position. The air conditioning amplifier activates the motor (normal, reverse) based on the signals to move the air mix damper (passenger seat) to any position, which adjusts the amount of air passing the heater core after passing the evaporator to control the blowing temperature.

HINT

Confirm that no mechanical problem is present because this diagnostic code can be output when either a damper link or damper is mechanically locked.

DIAGNOSTIC TROUBLE CODE CHART

Scheme 33

The damper servo (air inlet control) sends pulse signals to inform the air conditioning amplifier of the damper position. The air conditioning amplifier activates the motor (normal, reverse) based on the signals to move the air inlet damper to any position, which controls the intake air settings (FRESH, FRESH/ RECIRCULATION, and RECIRCULATION).

HINT

Confirm that no mechanical problem is present because this diagnostic code can be output when either a damper link or damper is mechanically locked.

DIAGNOSTIC TROUBLE CODE CHART

Scheme 34

The mode damper servo sends pulse signals to inform the air conditioning amplifier of the damper position. The air conditioning amplifier activates the motor (normal, reverse) based on the signals to move the air outlet damper to any position, which controls the air outlet switching.

HINT

Confirm that no mechanical problem is present because this diagnostic code can be output when either a damper link or damper is mechanically locked.

DIAGNOSTIC TROUBLE CODE CHART

Scheme 35

The air mix damper servo sends pulse signals to inform the air conditioning amplifier of the damper position. The air conditioning amplifier activates the motor (normal, reverse) based on the signals to move the air mix damper (driver seat) to any position. As a result, the amount of air passing through the heater core after passing through the evaporator is adjusted, and the temperature of the air blowing toward the driver seat side is controlled.

HINT

Confirm that no mechanical problem is present because this diagnostic code can be output when either a damper link or damper is mechanically locked.

DIAGNOSTIC TROUBLE CODE CHART

Scheme 36

In this circuit, the compressor receives a refrigerant compression demand signal from the air conditioning amplifier.

Based on this signal, the compressor changes the amount of compressor output.

DIAGNOSTIC TROUBLE CODE CHART

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1. INSPECT A/C COMPRESSOR Disconnect the A/C compressor connector. Measure the resistance according to the value (s) in the table below. Standard resistance A/C COMPRESSOR Tester Connection Condition Specified Condition B1-2 (SOL+) - B1-1 (SOL-) 20°C (68°F) 10 to 11 ohms NG: REPLACE A/C COMPRESSOR OK: Go to Next Step
2. CHECK HARNESS AND CONNECTOR (A/C COMPRESSOR - BODY GROUND) Disconnect the A/C compressor connector. Measure the resistance according to the value (s) in the table below. Standard resistance A/C COMPRESSOR - BODY GROUND Tester Connection Condition Specified Condition B1-1 (SOL-) - Body ground Always Below 1 ohms NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to Next Step
3. CHECK HARNESS AND CONNECTOR (A/C COMPRESSOR - A/C AMPLIFIER) Disconnect the A/C compressor connector. Disconnect the A/C amplifier connector. Measure the resistance according to the value (s) in the table below. Standard resistance A/C COMPRESSOR - A/C AMPLIFIER Tester Connection Condition Specified Condition E1-2 (SOL+) - B1-2 (SOL+) Always Below 1 ohms E1-2 (SOL+) - Body ground Always 10 kohms or higher Result RESULT CHART Result Proceed to NG A OK (When troubleshooting according to the PROBLEM SYMPTOMS TABLE) B OK (When troubleshooting according to the DTC) C B: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-283108-S02001029892008041700000) C: REPLACE AIR CONDITIONING AMPLIFIER A: REPAIR OR REPLACE HARNESS OR CONNECTOR

The smog ventilation sensor detects NOx in the emission gas and transmits signals to the A/C amplifier. Based on the signals, the A/C amplifier performs automatic air inlet control (FRESH, FRESH/ RECIRCULATION, or RECIRCULATION mode).

DIAGNOSTIC TROUBLE CODE CHART

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1. INSPECT FUSE (LH-IG) Remove the LH-IG fuse from the cowl side junction block LH. Measure the resistance according to the value (s) in the table below. Standard resistance FUSE (LH-IG) Tester Item Condition Specified Condition LH-IG fuse Always Below 1 ohms NG: REPLACE FUSE (LH-IG) OK: Go to Next Step
2. READ VALUE OF INTELLIGENT TESTER Connect the intelligent tester to the DLC3. Turn the engine switch on (IG) and turn the intelligent tester main switch on. Allow exhaust gas (NOx) to travel to the sensing portion of the smog ventilation sensor. Select the item below in the DATA LIST, and read the display on the intelligent tester. DATA LIST / AIR CONDITIONER: DATA LIST Tester Display Measurement Item/Range Normal Condition Diagnostic Note NOX GAS SENS (Emission gas NOx sensor) Emission gas NOx sensor/ Min.: 0, Max.: 255 Smog ventilation sensor value increases as gas amount increases - OK: The display is as specified in the normal condition column. Result RESULT CHART Result Proceed to NG A OK (When troubleshooting according to the PROBLEM SYMPTOMS TABLE) B OK (When troubleshooting according to the DTC) C B: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-283108-S02001029892008041700000) C: REPLACE AIR CONDITIONING AMPLIFIER A: Go to Next Step
3. CHECK HARNESS AND CONNECTOR (SMOG VENTILATION SENSOR - BODY GROUND) Disconnect the smog ventilation sensor connector. Measure the resistance according to the value (s) in the table below. Standard resistance SMOG VENTILATION SENSOR - BODY GROUND Tester Connection Condition Specified Condition A37-6 (E) - Body ground Always Below 1 ohms NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to Next Step
4. CHECK HARNESS AND CONNECTOR (SMOG VENTILATION SENSOR - BATTERY) Disconnect the smog ventilation sensor connector. Measure the voltage according to the value (s) in the table below. Standard voltage SMOG VENTILATION SENSOR - BATTERY Tester Connection Condition Specified Condition A37-3 (IG) - Body ground Engine switch on (IG) 10 to 14 V Engine switch off Below 1 V NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to Next Step
5. INSPECT SMOG VENTILATION SENSOR Remove the smog ventilation sensor. Apply battery voltage between terminals 3 (IG) and 6 (E). Allow exhaust gas (NOx) to travel to the sensing portion of the smog ventilation sensor, and measure the resistance between terminals 1 (SG) and 4 (DGS1). OK: When the sensor is exposed to the exhaust gas, the resistance increases. HINT: The resistance before blowing exhaust gas is 10 kohms to 40 kohms. NG: REPLACE SMOG VENTILATION SENSOR OK: Go to Next Step
6. CHECK HARNESS AND CONNECTOR (SMOG VENTILATION SENSOR - A/C AMPLIFIER) Disconnect the exhaust gas sensor connector. Disconnect the A/C amplifier connector. Measure the resistance according to the value (s) in the table below. Standard resistance SMOG VENTILATION SENSOR - A/C AMPLIFIER Tester Connection Condition Specified Condition A37-1 (SG) - E1-13 (SG-2) Always Below 1 ohms A37-4 (DGS1) - E1-7 (DGS1) Always Below 1 ohms E1-13 (SG-2) - Body ground Always 10 kohms or higher E1-7 (DGS1) - Body ground Always 10 kohms or higher NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: REPLACE AIR CONDITIONING AMPLIFIER

The air conditioning harness connects the air conditioning amplifier and each servo motor. The air conditioning amplifier supplies power and sends operation instructions to each servo motor through the air conditioning harness. Each servo motor sends the damper position information to the air conditioning amplifier.

DIAGNOSTIC TROUBLE CODE CHART

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1. CHECK HARNESS AND CONNECTOR Remove the A/C amplifier. Disconnect the connector from the A/C amplifier. Measure the resistance according to the value (s) in the table below. Standard resistance A/C AMPLIFIER RESISTANCE Tester Connection Condition Specified Condition E1-14 (GND) - Body ground Always Below 1 ohms NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to Next Step
2. INSPECT AIR CONDITIONING AMPLIFIER Reconnect the connector to the A/C amplifier. Measure the resistance according to the value (s) in the table below. Standard resistance AIR CONDITIONING AMPLIFIER Tester Connection Condition Specified Condition Y1-2 (BUSG) - E1-14 (GND) Always Below 1 ohms NG: REPLACE AIR CONDITIONING AMPLIFIER OK: Go to Next Step
3. INSPECT AIR CONDITIONING AMPLIFIER Disconnect the connector (Y1) from the A/C amplifier. Measure the voltage according to the value (s) in the table below. Standard voltage AIR CONDITIONING AMPLIFIER Tester Connection Condition Specified Condition Y1-4 (B BUS) - Body ground Engine switch off Below 1 V Y1-4 (B BUS) - Body ground Engine switch on (IG) 10 to 14 V NG: REPLACE AIR CONDITIONING AMPLIFIER OK: Go to Next Step
4. REPLACE AIR CONDITIONING HARNESS Replace the air conditioning harness. HINT: Since the air conditioning harness cannot be inspected while it is removed from the vehicle, replace the air conditioning harness with a normal one and check that the condition returns to normal. Check for DTCs. Result AIR CONDITIONING HARNESS Result Proceed to DTC B1497/97 is output. A DTC B1497/97 is not output. B B: END A: REPLACE AIR CONDITIONING AMPLIFIER

DIAGNOSTIC TROUBLE CODE CHART

Battery voltage is supplied to the A/C control assembly through the A/C fuse and A/C No. 2 fuse.

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1. CHECK HARNESS AND CONNECTOR (IG+, B - BODY GROUND) Disconnect the connector from the A/C control assembly. Measure the voltage according to the value (s) in the table below. Standard voltage IG+, B - BODY GROUND Tester Connection (Symbols) Condition Specified Condition E3-2 (IG+) - Body ground Engine switch on (IG) 10 to 14 V E3-2 (IG+) - Body ground Engine switch off Below 1 V E3-1 (+B) - Body ground Always 10 to 14 V NG: GO TO SMART ACCESS SYSTEM WITH PUSH-BUTTON START (See «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-283102-S06411612392008041700000) ) OK: Go to Next Step
2. CHECK HARNESS AND CONNECTOR (GND - BODY GROUND) Measure the resistance according to the value (s) in the table below. Standard resistance GND - BODY GROUND Tester Connection (Symbols) Condition Specified Condition E3-18 (GND) - Body ground Always Below 1 ohms NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-283108-S02001029892008041700000)

When the A/C amplifier is turned on, a magnetic clutch ON signal is sent from the MGC terminal of the A/ C amplifier. Then, the MGC relay turns on to operate the magnetic clutch.

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1. CHECK CAN COMMUNICATION SYSTEM Use the intelligent tester to check if the CAN Communication System is functioning normally. Result CAN COMMUNICATION SYSTEM Result Proceed to CAN DTC is not output A CAN DTC is output B B: GO TO CAN COMMUNICATION SYSTEM (See «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-283107-S06034118862008041700000) ) A: Go to Next Step
2. READ VALUE OF INTELLIGENT TESTER Connect the intelligent tester to the DLC3. Turn the engine switch on (IG) and turn the intelligent tester main switch on. Turn the A/C switch on and off. Select the item below in the DATA LIST, and read the display on the intelligent tester. DATA LIST / ENGINE: DATA LIST Tester Display Measurement Item/Range Normal Condition Diagnostic Note A/C SIGNAL (A/C Signal) A/C signal / ON or OFF ON: A/C ON OFF: A/C OFF - OK: The display is as specified in the normal condition column. NG: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-283108-S02001029892008041700000) OK: Go to Next Step
3. PERFORM ACTIVE TEST BY INTELLIGENT TESTER Connect the intelligent tester to the DLC3. Turn the engine switch on (IG) and turn the intelligent tester main switch on. Select the item below in the ACTIVE TEST and check that the magnetic clutch relay operates. ACTIVE TEST / AIR CONDITIONER: ACTIVE TEST Tester Display Test Part Control Range A/C MAG CLUTCH (Magnetic clutch relay) Magnetic clutch relay / OFF, ON - OK: The magnetic clutch relay operates normally. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-283108-S02001029892008041700000) NG: Go to Next Step
4. INSPECT FUSE (A/C NO. 2) Remove the A/C No. 2 fuse from the instrument panel J/ B. Measure the resistance of the fuse. Standard resistance FUSE (A/C NO. 2) Tester Item Condition Specified Condition A/C No. 2 fuse Always Below 1 ohms Reconnect the A/C No. 2 fuse to the instrument panel J/ B. NG: REPLACE FUSE (A/C NO. 2) OK: Go to Next Step
5. INSPECT RELAY (MGC) Remove the MGC relay from the engine room R/B and J/ B. Measure the resistance according to the value (s) in the table below. Standard resistance RELAY (MGC) Tester Connection Specified Condition 3 - 5 10 kohms or higher 3 - 5 Below 1 ohms (when battery voltage is applied to terminals 1 and 2) Install the MGC relay to the engine room R/B and J/B. NG: REPLACE RELAY (MGC) OK: Go to Next Step
6. CHECK HARNESS AND CONNECTOR (A/C AMPLIFIER - BATTERY) Disconnect the connector from the A/C amplifier. Measure the voltage according to the value (s) in the table below. Standard voltage A/C AMPLIFIER - BATTERY VOLTAGE Tester Connection (Symbols) Condition Specified Condition E1-20 (MGC) - Body ground Engine switch off Below 1 V E1-20 (MGC) - Body ground Engine switch on (IG) 10 to 14 V NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to Next Step
7. INSPECT AIR CONDITIONING AMPLIFIER Reconnect the connector to the A/C amplifier. Measure the voltage according to the value (s) in the table below. Standard voltage AIR CONDITIONING AMPLIFIER VOLTAGE Tester Connection (Symbols) Condition Specified Condition E1-20 (MGC) - Body ground Engine switch on (IG) A/C switch: OFF 10 to 14 V E1-20 (MGC) - Body ground Engine switch on (IG) A/C switch: ON Below 1 V NG: REPLACE AIR CONDITIONING AMPLIFIER OK: Go to Next Step
8. INSPECT A/C COMPRESSOR Disconnect the connector from the A/C compressor. Disconnect the connector from the magnetic clutch. Measure the resistance according to the value (s) in the table below. Standard resistance A/C COMPRESSOR RESISTANCE Tester Connection (Symbols) Condition Specified Condition B2-3 (MG+) - A-1 Always Below 1 ohms B2-3 (MG+) - Body ground Always 10 kohms or higher NG: REPLACE A/C COMPRESSOR OK: Go to Next Step
9. INSPECT MAGNETIC CLUTCH Measure the resistance according to the value (s) in the table below. Standard resistance MAGNETIC CLUTCH RESISTANCE Tester Connection Condition Specified Condition A-1 - Body ground Always 3.4 to 3.8 ohms When connector terminal A-1 is connected to the positive (+) battery terminal, check that the following occurs: 1) the magnetic clutch's operating sound can be heard, and 2) the magnetic clutch's hub and rotor lock. NG: REPLACE MAGNETIC CLUTCH OK: Go to Next Step
10. CHECK HARNESS AND CONNECTOR (ENGINE ROOM R/B AND J/B - BATTERY) Remove the MGC relay from the engine room R/B and J/ B. Turn the engine switch on (IG). Measure the voltage according to the value (s) in the table below. Standard voltage ENGINE ROOM R/B AND J/B - BATTERY VOLTAGE Tester Connection Specified Condition Relay block MGC relay terminal 5 - Body ground 10 to 14 V Relay block MGC relay terminal 1 - Body ground 10 to 14 V NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: REPAIR OR REPLACE HARNESS OR CONNECTOR (ENGINE ROOM R/B AND J/B - A/C COMPRESSOR)

The main power source is supplied to the A/C amplifier when the engine switch is turned on (IG).

The power source is used for operating the A/C amplifier and servo motor, etc.

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The back-up power source circuit for the A/C amplifier is shown below. Power is supplied even when turning the engine switch off and is used for diagnostic trouble code memory, etc.

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1. INSPECT FUSE (A/C) Remove the A/C fuse from the instrument panel J/B. Measure the resistance according to the value (s) in the table below. Standard resistance FUSE (A/C) RESISTANCE Tester Item Condition Specified Condition A/C fuse Always Below 1 ohms NG: REPLACE FUSE (A/C) OK: Go to Next Step
2. INSPECT AIR CONDITIONING AMPLIFIER (AIR CONDITIONING AMPLIFIER - BODY GROUND) Disconnect the A/C amplifier connector. Measure the voltage according to the value (s) in the table below. Standard voltage AIR CONDITIONING AMPLIFIER (AIR CONDITIONING AMPLIFIER - BODY GROUND) VOLTAGE Tester Connection Condition Specified Condition E1-21 (B) - Body ground Always 10 to 14 V NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-283108-S02001029892008041700000)

The operation signal of a switch etc. is exchanged between terminal TX+ of the A/C control assembly and terminal LIN1 of the A/C amplifier.

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1. CHECK HARNESS AND CONNECTOR (A/C CONTROL ASSEMBLY - AIR CONDITIONING AMPLIFIER) Disconnect the connector from the A/C control assembly. Disconnect the connector from the A/C amplifier. Measure the resistance according to the value (s) in the table below. Standard resistance A/C CONTROL ASSEMBLY - AIR CONDITIONING AMPLIFIER RESISTANCE Tester Connection (Symbols) Condition Specified Condition E1-37 (LIN1) - E3-15 (TX1) Always Below 1 ohms E1-37 (LIN1) - Body ground Always 10 kohms or higher NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-283108-S02001029892008041700000)

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1. INSPECT REFRIGERANT VOLUME Check the sight glass on the air conditioning tube & accessory assembly. Prepare the vehicle according to the chart below. SIGHT GLASS ON AIR CONDITIONING TUBE & ACCESSORY ASSEMBLY Item Condition Vehicle door Fully open Temperature setting MAX COLD Blower speed HI A/C ON Compare the sight glass to the following chart. SIGHT GLASS REFERENCE CHART Item Symptom Amount of refrigerant Corrective Actions 1 Bubbles exist Insufficient (1) Check for gas leakage and repair if necessary Recharge with proper amount of refrigerant 2 No bubbles exist Empty, insufficient, or excessive Refer to 3 and 4 3 No temperature difference between compressor inlet and outlet Empty or nearly empty Check for gas leakage and repair if necessary Evacuate the AC system and recharge with the proper amount of refrigerant 4 Considerable temperature difference between compressor inlet and outlet Proper or excessive Refer to 5 and 6 5 Immediately after air conditioning is turned off, refrigerant remains clear Excessive Recover refrigerant Evacuate the AC system and recharge with the proper amount of refrigerant 6 Immediately after air conditioning is turned off, refrigerant foams and then becomes clear Proper - (1) Bubbles in the sight glass with the vehicle's interior temperature above 35°C (95°F) can be considered normal if cooling is sufficient.
2. INSPECT REFRIGERANT PRESSURE WITH MANIFOLD GAUGE SET HINT: This is a method where a manifold gauge set is used to help locate the problem. Read the manifold gauge pressure when the following conditions are established. Test conditions: Temperature at the air inlet with the switch set at RECIRC is 30 to 35°C (86 to 95°F). Engine is running at 1,500 rpm. Blower speed control switch is at "HI". Temperature control dial is at "COOL". A/C switch is ON. Doors are fully open. Ignition switch is in a position that enables the AC compressor to run. Normally functioning refrigeration system Gauge reading NORMALLY FUNCTIONING REFRIGERATION SYSTEM - GAUGE READING Pressure side Refrigerant volume Low 0.15 to 0.25 MPa (1.5 to 2.5 kgf/cm 2 , 21.3 to 35.5 psi) High 1.37 to 1.57 MPa (14 to 16 kgf/cm 2 , 199.1 to 227.5 psi) Moisture is present in refrigeration system. NORMALLY FUNCTIONING REFRIGERATION SYSTEM - MOISTURE IS PRESENT IN REFRIGERATION SYSTEM Symptom Probable Cause Diagnosis Corrective Actions During operation, pressure on low pressure side cycles between normal and vacuum Moisture in AC system will freeze at the expansion valve orifice, causing the refrigeration cycle to temporarily stop After the system stops, and warms up again, the ice will melt and normal operation will be temporarily restored Cooler dryer integrated into condenser tank in oversaturated state Moisture in refrigeration system freezes at expansion valve orifice and blocks circulation of refrigerant Replace cooler dryer Remove moisture in system by repeatedly evacuating air Supply a proper amount of new refrigerant Insufficient cooling NORMALLY FUNCTIONING REFRIGERATION SYSTEM - INSUFFICIANT COOLING Symptom Probable Cause Diagnosis Corrective Actions Pressure is low on both low and high pressure sides Bubbles are seen through sight glass continuously Insufficient cooling performance Gas leakage from the refrigeration system Insufficient refrigerant Refrigerant leaking Check for gas leakage and repair if necessary Supply a proper amount of new refrigerant If the gauge indicates a pressure of close to 0, then it will be necessary to evacuate the system after repairing the leak Poor circulation of refrigerant NORMALLY FUNCTIONING REFRIGERATION SYSTEM - POOR CIRCULATION OF REFRIGERANT Symptom Probable Cause Diagnosis Corrective Actions Pressure is low on both low and high pressure sides Frost exists on pipe from condenser to unit Refrigerant flow is obstructed by dirt inside the pipes of the condenser core Receiver is clogged Replace condenser Refrigerant does not circulate. NORMALLY FUNCTIONING REFRIGERATION SYSTEM - REFRIGERANT DOES NOT CIRCULATE Symptom Probable Cause Diagnosis Corrective Actions Vacuum is indicated on low pressure side and very low pressure is indicated on high pressure side Frost or condensation is seen on piping on both sides of receiver/drier or expansion valve Refrigerant flow is obstructed by moisture or dirt in refrigeration system Refrigerant flow is disrupted by gas leaking internally through the expansion valve Refrigerant does not circulate Check the expansion valve Replace expansion valve Replace condenser Evacuate air and supply a proper amount of new refrigerant For internal gas leak at expansion valve, replace expansion valve Refrigerant is overcharged or cooling effectiveness of condenser is insufficient. NORMALLY FUNCTIONING REFRIGERATION SYSTEM - REFRIGERANT IS OVERCHARGED OR COOLING EFFECTIVENESS IS INSUFFICIENT Symptom Probable Cause Diagnosis Corrective Actions Pressure is too high on both low and high pressure sides No air bubbles are seen through sight glass even when engine rpm lowers Unable to develop sufficient performance due to excessive use of refrigeration system Cooling effectiveness of condenser is insufficient Excessive refrigerant in cycle --> excessive refrigerant was added during recharging Condenser cooling effectiveness is insufficient --> condenser fins are clogged at cooling fan Clean condenser Check the operation of the condenser cooling fan If 1 and 2 are normal state, check the amount of refrigerant and supply proper amount of refrigerant Air is present in refrigeration system. NORMALLY FUNCTIONING REFRIGERATION SYSTEM - AIR PRESENT IN REFRIGERATION SYSTEM Symptom Probable Cause Diagnosis Corrective Actions Pressure is too high on both low and high pressure sides The low pressure piping is too hot to touch Bubbles can be seen through sight glass Air in system Air present in refrigeration system Insufficient vacuum purging Check compressor oil to see if it is dirty or insufficient Evacuate the system and recharge it with new or purified refrigerant Expansion valve malfunction NORMALLY FUNCTIONING REFRIGERATION SYSTEM - EXPANSION VALVE MALFUNCTION Symptom Probable Cause Diagnosis Corrective Actions Pressure is too high on both low and high pressure sides Frost or a large amount of condensation on piping on low pressure side Expansion valve may be sticking Excessive refrigerant in low pressure piping Expansion valve opened too wide Check expansion valve Insufficient compressor compression NORMALLY FUNCTIONING REFRIGERATION SYSTEM - INSUFFICIENT COMPRESSOR COMPRESSION Symptom Probable Cause Diagnosis Corrective Actions Pressure is too high both on low and high pressure sides Pressure is too low on high pressure side Internal leak in compressor Low compression Leak from a damaged valve, or parts may be broken Replace compressor Gauge readings (Reference)

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1. RECOVER REFRIGERANT FROM REFRIGERATION SYSTEM Start up the engine. Turn the A/C switch on. Operate the cooler compressor at an engine speed of approximately 1,000 rpm for 5 to 6 minutes to circulate the refrigerant. This causes most of the compressor oil from the various components of the A/C system to collect in the A/C compressor. Stop the engine. Recover the refrigerant from the A/C system using a refrigerant recovery unit.
2. CHARGE WITH REFRIGERANT Perform vacuum purging using a vacuum pump. Using SST charge with refrigerant HFC-134a (R134a). Standard: 470 to 530 g (16.6 to 18.7 oz.) SST 07110-58060 (07117-58060, 07117-58070, 07117-58080, 07117-58090, 07117-78050, 07117-88060, 07117-88070, 07117-88080) NOTE: Do not turn the A/C on before charging with refrigerant. Doing so will cause the cooler compressor to work without refrigerant, resulting in overheating of the cooler compressor. Approximately 100 g (3.53 oz.) of refrigerant may need to be charged after bubbles disappear. The refrigerant amount should be checked by quantity, not with the sight glass. HINT: Ensure that sufficient refrigerant is available to recharge the system when using a refrigerant recovery unit. Refrigerant recovery units are not always able to recover 100 % of the refrigerant from the A/C system.
3. WARM UP COMPRESSOR Keep the A/C switch on for at least 2 minutes to warm up the compressor. NOTE: Be sure to warm up the compressor when turning the A/C on after removing and installing the cooler refrigerant lines (including the compressor), to prevent damage to the compressor.
4. CHECK FOR LEAKAGE OF REFRIGERANT After recharging with refrigerant gas, check for leakage of refrigerant gas using a halogen leak detector. Carry out the test as follows: Turn the engine switch off. Secure good ventilation (the gas leak detector may react to volatile gases which are not refrigerant, such as evaporated gasoline and exhaust gas). Repeat the test 2 or 3 times. Make sure that there is some refrigerant remaining in the refrigeration system. When the compressor is off: approx. 392 to 588 kPa (4 to 6 kgf/cm 2 , 57 to 85 psi) Using a gas leak detector, check for leakage from the refrigerant lines. Bring the gas leak detector close to the drain hose with the detector's power off, and then turn the detector on. HINT: After the blower motor has stopped, let the cooling unit stand for more than 15 minutes. Bring the gas leak detector sensor under the drain hose. When bringing the gas leak detector close to the drain hose, make sure that the gas leak detector does not react to volatile gases. If it is not possible to avoid interference from volatile gases, the vehicle should be lifted up to allow testing. If a gas leak is not detected from the drain hose, remove the blower motor control from the cooling unit. Insert the gas leak detector sensor into the unit and perform the test. Disconnect the pressure switch connector and leave it for approximately 20 minutes. Bring the gas leak detector close to the pressure switch and perform the test.

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1. RECOVER REFRIGERANT FROM REFRIGERATION SYSTEM Start up the engine. Turn the A/C switch on. Operate the cooler compressor at an engine speed of approximately 1,000 rpm for 5 to 6 minutes to circulate the refrigerant. This causes most of the compressor oil from the various components of the A/C system to collect in the A/C compressor. Stop the engine. Recover the refrigerant from the A/C system using a refrigerant recovery unit.
2. ALIGN FRONT WHEELS FACING STRAIGHT AHEAD
3. DISCONNECT BATTERY NEGATIVE TERMINAL NOTE: Wait for 90 seconds after disconnecting the terminal to prevent the airbag from deploying (See «AIRBAG SYSTEM»(/lexus/es/xv40-2006-2009/remont/airbag/#supplemental-restraint-system) ).
4. REMOVE COOL AIR INTAKE DUCT SEAL (See «REMOVAL»(ref-283093-S19183759882008041700000) )
5. REMOVE HOOD HINGE COVER (for LH Side) (See «REMOVAL»(ref-283123-S18755761682008041700000) )
6. REMOVE HOOD HINGE COVER (for RH Side) (See «REMOVAL»(ref-283123-S18755761682008041700000) )
7. REMOVE ENGINE ROOM SIDE COVER LH (See «REMOVAL»(ref-283123-S18755761682008041700000) )
8. REMOVE ENGINE ROOM SIDE COVER RH (See «REMOVAL»(ref-283123-S18755761682008041700000) )
9. REMOVE AIR CLEANER CAP SUB-ASSEMBLY (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/testing-diagnostics/#engine-control-system) )
10. REMOVE AIR CLEANER FILTER ELEMENT SUB-ASSEMBLY
11. REMOVE FRONT SUSPENSION UPPER CENTER BRACE (See «REMOVAL»(ref-283090-S09785113182008041700000) )
12. REMOVE FRONT WIPER ARM AND BLADE ASSEMBLY LH (See «REMOVAL»(ref-283123-S18755761682008041700000) )
13. REMOVE FRONT WIPER ARM AND BLADE ASSEMBLY RH (See «REMOVAL»(ref-283123-S18755761682008041700000) )
14. REMOVE COWL TOP VENTILATOR LOUVER SUB-ASSEMBLY (See «REMOVAL»(ref-283123-S18755761682008041700000) )
15. REMOVE WINDSHIELD WIPER MOTOR AND LINK ASSEMBLY (See «REMOVAL»(ref-283123-S18755761682008041700000) )
16. DISCONNECT SUCTION PIPE SUB-ASSEMBLY Remove the bolt, and slide the hook connector. Disconnect the suction pipe sub-assembly. Remove the O-ring from the suction hose sub-assembly. NOTE: Seal the openings of the disconnected parts using vinyl tape to prevent entry of moisture and foreign matter.
17. DISCONNECT AIR CONDITIONER TUBE AND ACCESSORY Disconnect the air conditioner tube and accessory. Remove the O-ring from the air conditioner tube and accessory. NOTE: Seal the openings of the disconnected parts using vinyl tape to prevent entry of moisture and foreign matter.
18. DISCONNECT HEATER OUTLET WATER HOSE Using pliers, grip the claws of the clip and slide the clip to disconnect the heater outlet water hose. NOTE: Do not apply excessive force to the heater outlet water hose. Prepare a drain pan or cloth in case the coolant leaks.
19. DISCONNECT HEATER INLET WATER HOSE HINT: Disconnection procedure for the heater inlet water hose is the same as that for the heater outlet water hose.
20. REMOVE LOWER NO. 3 STEERING WHEEL COVER (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/airbag/#supplemental-restraint-system) )
21. REMOVE LOWER NO. 2 STEERING WHEEL COVER (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/airbag/#supplemental-restraint-system) )
22. REMOVE STEERING PAD (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/airbag/#supplemental-restraint-system) )
23. REMOVE STEERING WHEEL ASSEMBLY (See «REMOVAL»(ref-283089-S28153843412008041700000) )
24. REMOVE FRONT DOOR SCUFF PLATE LH (See «REMOVAL»(ref-283110-S29464350012008041700000) )
25. REMOVE FRONT DOOR OPENING TRIM COVER LH (See «REMOVAL»(ref-283110-S29464350012008041700000) )
26. REMOVE SIDE INSTRUMENT PANEL LH (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
27. REMOVE INSTRUMENT PANEL FINISH PANEL END LH (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
28. REMOVE LOWER INSTRUMENT PANEL SUB-ASSEMBLY (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
29. REMOVE STEERING COLUMN COVER (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
30. REMOVE TURN SIGNAL SWITCH ASSEMBLY WITH SPIRAL CABLE SUB-ASSEMBLY (See «REMOVAL»(ref-283089-S28153843412008041700000) )
31. REMOVE TILT & TELESCOPIC SWITCH (See «REMOVAL»(ref-283089-S28153843412008041700000) )
32. REMOVE INSTRUMENT CLUSTER FINISH PANEL SUB-ASSEMBLY (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
33. REMOVE COMBINATION METER ASSEMBLY (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
34. REMOVE NO. 1 SWITCH HOLE BASE (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
35. REMOVE INSTRUMENT PANEL FINISH PANEL END RH (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
36. REMOVE FRONT DOOR SCUFF PLATE RH (See «REMOVAL»(ref-283110-S29464350012008041700000) )
37. REMOVE FRONT DOOR OPENING TRIM COVER RH (See «REMOVAL»(ref-283110-S29464350012008041700000) )
38. REMOVE NO. 2 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
39. REMOVE SIDE INSTRUMENT PANEL RH (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
40. REMOVE FRONT PASSENGER SIDE KNEE AIRBAG ASSEMBLY (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/airbag/#supplemental-restraint-system) )
41. REMOVE LOWER INSTRUMENT PANEL RH (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
42. REMOVE SHIFT LEVER KNOB SUB-ASSEMBLY (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
43. REMOVE UPPER CONSOLE PANEL ASSEMBLY WITH FRONT ASH RECEPTACLE (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
44. REMOVE NO. 2 INSTRUMENT PANEL REGISTER ASSEMBLY (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
45. REMOVE INTEGRATION CONTROL PANEL WITH RADIO RECEIVER ASSEMBLY (w/o Navigation System) (See «REMOVAL»(ref-283118-S05330376912008041700000) )
46. REMOVE MULTI-DISPLAY WITH RADIO RECEIVER ASSEMBLY (w/ Navigation System) (See «REMOVAL»(ref-283118-S05330376912008041700000) )
47. REMOVE HEATER SEAT SWITCH CONSOLE BASE (w/o Seat Heater System) (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
48. REMOVE HEATER SEAT SWITCH CONSOLE BASE (w/ Seat Heater System) (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
49. REMOVE CONSOLE BOX POCKET (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
50. REMOVE CONSOLE BOX CARPET (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
51. REMOVE CONSOLE REAR END PANEL SUB-ASSEMBLY (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
52. REMOVE REAR CONSOLE BOX ASSEMBLY (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
53. REMOVE FRONT PILLAR GARNISH LH (See «REMOVAL»(ref-283110-S29464350012008041700000) )
54. REMOVE NO. 1 INSTRUMENT PANEL SPEAKER PANEL SUB-ASSEMBLY (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
55. REMOVE FRONT NO. 2 SPEAKER ASSEMBLY (for LH Side) (See «REMOVAL»(ref-283118-S31252883322008041700000) )
56. REMOVE NO. 1 INSTRUMENT PANEL REGISTER ASSEMBLY (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
57. REMOVE FRONT PILLAR GARNISH RH (See «REMOVAL»(ref-283110-S29464350012008041700000) )
58. REMOVE NO. 2 INSTRUMENT PANEL SPEAKER PANEL SUB-ASSEMBLY (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
59. REMOVE FRONT NO. 2 SPEAKER ASSEMBLY (for RH Side) (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
60. REMOVE NO. 3 INSTRUMENT PANEL REGISTER ASSEMBLY (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
61. REMOVE NO. 1 SPEAKER HOLE COVER (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
62. REMOVE FRONT STEREO COMPONENT SPEAKER ASSEMBLY (See «REMOVAL»(ref-283118-S24299402762008041700000) )
63. REMOVE NO. 1 INSTRUMENT PANEL MOUNTING BRACKET (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
64. REMOVE PUSH START SWITCH (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
65. DISCONNECT INSTRUMENT PANEL WIRE ASSEMBLY (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/airbag/#supplemental-restraint-system) )
66. REMOVE ROOM TEMPERATURE SENSOR (See «REMOVAL»(ref-283108-S29434752532008041700000) )
67. REMOVE INSTRUMENT PANEL SAFETY PAD ASSEMBLY (w/o DVD Player) (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
68. REMOVE INSTRUMENT PANEL SAFETY PAD ASSEMBLY (w/ DVD Player) (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
69. REMOVE FLOOR CARPET BRACKET LH Release the 2 claws. Turn back the floor carpet. Remove the 3 clips. Remove the floor carpet bracket LH.
70. REMOVE FLOOR CARPET BRACKET RH Release the 2 claws. Turn back the floor carpet. Remove the 3 clips. Remove the floor carpet bracket RH.
71. REMOVE NO. 2 CONSOLE BOX DUCT Remove the bolt and No. 2 console box duct.
72. REMOVE NO. 3 CONSOLE BOX DUCT Remove the bolt and No. 3 console box duct.
73. REMOVE NO. 1 CONSOLE BOX DUCT Remove the No. 1 console box duct.
74. REMOVE REAR NO. 2 AIR DUCT Release the 2 claws and remove the rear No. 2 air duct.
75. REMOVE REAR NO. 1 AIR DUCT Release the 2 claws and remove the rear No. 1 air duct.
76. REMOVE NO. 1 AIR DUCT SUB-ASSEMBLY (See «REMOVAL»(ref-283089-S28153843412008041700000) )
77. SEPARATE STEERING INTERMEDIATE SHAFT ASSEMBLY (See «REMOVAL»(ref-283089-S28153843412008041700000) )
78. REMOVE STEERING COLUMN ASSEMBLY (See «DISASSEMBLY»(ref-283089-S25061384542008041700000) )
79. REMOVE AIR CONDITIONING AMPLIFIER ASSEMBLY (See «REMOVAL»(ref-283108-S08681489852008041700000) )
80. REMOVE INSTRUMENT PANEL REINFORCEMENT ASSEMBLY Remove the 24 clamps, disconnect the 11 connectors, and then disconnect the wire harness. Remove the 8 nuts, 7 bolts, and junction block. Remove the cap and bolt from the engine compartment side. Remove the 3 bolts and nut. Using a "TORX" socket wrench (T40), remove the 5 "TORX" bolts. HINT: The "TORX" bolts on the passenger side can be removed with the collars for adjustment. Using a hexagon wrench 12 mm, remove the 2 collars and instrument panel reinforcement assembly with the air conditioner unit assembly. Remove the 3 bolts, 2 screws, and instrument panel reinforcement assembly.

Scheme 112

Scheme 113

Scheme 114

Scheme 115

Scheme 116

Scheme 117

Scheme 118

Scheme 119

Scheme 120

Scheme 121

Scheme 122

Scheme 123

Scheme 124

1. REMOVE NO. 2 AIR DUCT SUB-ASSEMBLY Release the 2 claws and remove the No. 2 air duct sub-assembly as shown in the illustration.
2. REMOVE BLOWER ASSEMBLY Disconnect the connector. Remove the 2 screws and blower assembly.
3. REMOVE NO. 6 HEATER TO REGISTER DUCT ASSEMBLY Release the 4 claws and remove the No. 6 heater to register duct assembly.
4. REMOVE DRAIN COOLER HOSE Remove the drain cooler hose from the air conditioning radiator assembly.
5. REMOVE AIR OUTLET CONTROL SERVO MOTOR Disconnect the 2 connectors and remove the air conditioner harness. Remove the 3 screws and then remove the air outlet control servo motor.
6. REMOVE AIR MIX CONTROL SERVO MOTOR Remove the 2 screws and air mix control servo motor.
7. REMOVE HEATER RADIATOR UNIT SUB-ASSEMBLY Remove the screw and clamp. Release the 4 claws and remove the clamp. Remove the heater radiator unit sub-assembly from the air conditioning radiator assembly. NOTE: Prepare a drain pan or cloth in case the cooling water leaks.
8. REMOVE COOLER EXPANSION VALVE Using a 4 mm hexagon wrench, remove the 2 hexagon bolts and cooler expansion valve.
9. REMOVE NO. 1 COOLER EVAPORATOR SUB-ASSEMBLY Remove the 6 screws, release the 5 claws, and remove the plate cover. Remove the clamp and No. 1 cooler thermistor. Remove the No. 1 cooler evaporator sub-assembly. Remove the 2 O-rings from the No. 1 cooler evaporator sub-assembly.

Scheme 125

Scheme 126

Scheme 127

Scheme 128

1. INSTALL NO. 1 COOLER THERMISTOR If using a new evaporator: Install the No. 1 cooler thermistor to the evaporator as shown in the illustration. If reusing the evaporator: Install the No. 1 cooler thermistor to the evaporator as shown in the illustration.
2. INSTALL NO. 1 COOLER EVAPORATOR SUB-ASSEMBLY Sufficiently apply compressor oil to 2 new O-rings and the fitting surfaces. Install the 2 O-rings to the No. 1 cooler evaporator sub-assembly. Compressor oil: ND-OIL 8 or equivalent Install the No. 1 cooler evaporator sub-assembly. Engage the 5 claws and install the plate cover with the 6 screws.
3. INSTALL COOLER EXPANSION VALVE Using a 4 mm hexagon wrench, install the cooler expansion valve with the 2 hexagon bolts. Torque: 3.5 N*m (35 kgf*cm, 30 in.*lbf)
4. INSTALL HEATER RADIATOR UNIT SUB-ASSEMBLY Install the heater radiator unit sub-assembly to the air conditioner radiator assembly. Install the clamp with the screw. Engage the 4 claws and install the heater clamp.
5. INSTALL AIR MIX CONTROL SERVO MOTOR Install the air mix control servo motor with the 2 screws.
6. INSTALL AIR OUTLET CONTROL SERVO MOTOR Install the air outlet control servo motor with the 3 screws. Connect the 2 connectors and install the air conditioner harness.
7. INSTALL DRAIN COOLER HOSE Install the drain cooler hose to the air conditioner radiator assembly.
8. INSTALL NO. 6 HEATER TO REGISTER DUCT ASSEMBLY Engage the 4 claws to install the No. 6 heater to register duct assembly.
9. INSTALL BLOWER ASSEMBLY Install the blower assembly with the 2 screws. Connect the connector.
10. INSTALL NO. 2 AIR DUCT SUB-ASSEMBLY Engage the 2 claws to install the No. 2 air duct sub-assembly.

Scheme 129

Scheme 130

Scheme 131

Scheme 132

Scheme 133

1. INSTALL INSTRUMENT PANEL REINFORCEMENT ASSEMBLY Install the conditioner unit assembly to the instrument panel reinforcement assembly with the 2 screws and 3 bolts. Torque: 9.8 N*m (100 kgf*cm, 87 in.*lbf) NOTE: Tighten the bolts and screws in the order shown in the illustration to install the air conditioner unit assembly. Driver seat: Using a "TORX" socket wrench (T40), install the instrument panel reinforcement assembly with the 3 "TORX" bolts. Torque: 17 N*m (173 kgf*cm, 13 ft.*lbf) Passenger seat: Using a 12 mm hexagon wrench, adjust the position of the 2 collars. Torque: 6.0 N*m (61 kgf*cm, 53 in.*lbf) Using a "TORX" socket wrench (T40), install the instrument panel reinforcement assembly with the 2 "TORX" bolts. Torque: 20 N*m (204 kgf*cm, 15 ft.*lbf) Install the instrument panel reinforcement assembly with the 3 bolts and nut. Torque: 9.8 N*m (100 kgf*cm, 87 in.*lbf) (NUT) Install the bolt and cap. Connect the connectors and clamps. Install the 8 nuts and 7 bolts.
2. INSTALL AIR CONDITIONING AMPLIFIER ASSEMBLY (See «REMOVAL»(ref-283108-S08681489852008041700000) )
3. INSTALL STEERING COLUMN ASSEMBLY (See «INSTALLATION»(ref-283089-S19903248562008041700000) )
4. CONNECT STEERING INTERMEDIATE SHAFT ASSEMBLY (See «INSTALLATION»(ref-283089-S19903248562008041700000) )
5. INSTALL NO. 1 AIR DUCT SUB-ASSEMBLY (See «INSTALLATION»(ref-283089-S19903248562008041700000) )
6. INSTALL REAR NO. 1 AIR DUCT Engage the 2 claws to install the rear No. 1 air duct.
7. INSTALL REAR NO. 2 AIR DUCT Engage the 2 claws to install the rear No. 2 air duct.
8. INSTALL NO. 1 CONSOLE BOX DUCT Install the No. 1 console box duct.
9. INSTALL NO. 3 CONSOLE BOX DUCT Install the bolt and No. 3 console box duct.
10. INSTALL NO. 2 CONSOLE BOX DUCT Install the bolt and No. 2 console box duct.
11. INSTALL FLOOR CARPET BRACKET RH
12. INSTALL FLOOR CARPET BRACKET LH
13. INSTALL INSTRUMENT PANEL SAFETY PAD ASSEMBLY (w/o DVD Player) (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) )
14. INSTALL INSTRUMENT PANEL SAFETY PAD ASSEMBLY (w/ DVD Player) (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) )
15. INSTALL ROOM TEMPERATURE SENSOR (See «INSTALLATION»(ref-283108-S41444453192008041700000) )
16. CONNECT INSTRUMENT PANEL WIRE ASSEMBLY (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/airbag/#supplemental-restraint-system) )
17. INSTALL PUSH START SWITCH (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) )
18. INSTALL NO. 1 INSTRUMENT PANEL MOUNTING BRACKET (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) )
19. INSTALL FRONT STEREO COMPONENT SPEAKER ASSEMBLY (See «INSTALLATION»(ref-283118-S07980423762008041700000) )
20. INSTALL NO. 1 SPEAKER HOLE COVER (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) )
21. INSTALL NO. 1 INSTRUMENT PANEL REGISTER ASSEMBLY (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) )
22. INSTALL FRONT NO. 2 SPEAKER ASSEMBLY (for LH Side) (See «INSTALLATION»(ref-283118-S04410051032008041700000) )
23. INSTALL NO. 1 INSTRUMENT PANEL SPEAKER PANEL SUB-ASSEMBLY (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) )
24. INSTALL FRONT PILLAR GARNISH LH (See «INSTALLATION»(ref-283110-S31613301962008041700000) )
25. INSTALL NO. 3 INSTRUMENT PANEL REGISTER ASSEMBLY (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) )
26. INSTALL FRONT NO. 2 SPEAKER ASSEMBLY (for RH Side) (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) )
27. INSTALL NO. 2 INSTRUMENT PANEL SPEAKER PANEL SUB-ASSEMBLY (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) )
28. INSTALL FRONT PILLAR GARNISH RH (See «INSTALLATION»(ref-283110-S31613301962008041700000) )
29. INSTALL REAR CONSOLE BOX ASSEMBLY (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) )
30. INSTALL CONSOLE REAR END PANEL SUB-ASSEMBLY (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) )
31. INSTALL CONSOLE BOX CARPET (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) )
32. INSTALL CONSOLE BOX POCKET (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) )
33. INSTALL HEATER SEAT SWITCH CONSOLE BASE (w/o Seat Heater System) (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) )
34. INSTALL HEATER SEAT SWITCH CONSOLE BASE (w/ Seat Heater System) (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) )
35. INSTALL INTEGRATION CONTROL PANEL WITH RADIO RECEIVER ASSEMBLY (w/o Navigation System) (See «INSTALLATION»(ref-283118-S03159211972008041700000) )
36. INSTALL MULTI-DISPLAY WITH RADIO RECEIVER ASSEMBLY (w/ Navigation System) (See «INSTALLATION»(ref-283118-S03159211972008041700000) )
37. INSTALL NO. 2 INSTRUMENT PANEL REGISTER ASSEMBLY (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) )
38. INSTALL UPPER CONSOLE PANEL ASSEMBLY WITH FRONT ASH RECEPTACLE (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) )
39. INSTALL SHIFT LEVER KNOB SUB-ASSEMBLY (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) )
40. INSTALL LOWER INSTRUMENT PANEL RH (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) )
41. INSTALL FRONT PASSENGER SIDE KNEE AIRBAG ASSEMBLY (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/airbag/#supplemental-restraint-system) )
42. INSTALL SIDE INSTRUMENT PANEL RH (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) )
43. INSTALL NO. 2 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) )
44. INSTALL FRONT DOOR OPENING TRIM COVER RH (See «INSTALLATION»(ref-283110-S31613301962008041700000) )
45. INSTALL FRONT DOOR SCUFF PLATE RH (See «INSTALLATION»(ref-283110-S31613301962008041700000) )
46. INSTALL INSTRUMENT PANEL FINISH PANEL END RH (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) )
47. INSTALL NO. 1 SWITCH HOLE BASE (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) )
48. INSTALL COMBINATION METER ASSEMBLY (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) )
49. INSTALL INSTRUMENT CLUSTER FINISH PANEL SUB-ASSEMBLY (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) )
50. INSTALL TURN SIGNAL SWITCH ASSEMBLY WITH SPIRAL CABLE (See «INSTALLATION»(ref-283089-S19903248562008041700000) )
51. INSTALL TILT & TELESCOPIC SWITCH (See «INSTALLATION»(ref-283089-S19903248562008041700000) )
52. INSTALL STEERING COLUMN COVER (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) )
53. ADJUST SPIRAL CABLE SUB-ASSEMBLY (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/airbag/#supplemental-restraint-system) )
54. INSTALL LOWER INSTRUMENT PANEL SUB-ASSEMBLY (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) )
55. INSTALL INSTRUMENT PANEL FINISH PANEL END LH (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) )
56. INSTALL SIDE INSTRUMENT PANEL LH (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) )
57. INSTALL FRONT DOOR OPENING TRIM COVER LH (See «INSTALLATION»(ref-283110-S31613301962008041700000) )
58. INSTALL FRONT DOOR SCUFF PLATE LH (See «INSTALLATION»(ref-283110-S31613301962008041700000) )
59. INSTALL STEERING WHEEL ASSEMBLY (See «INSTALLATION»(ref-283089-S19903248562008041700000) )
60. INSTALL STEERING PAD (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/airbag/#supplemental-restraint-system) )
61. INSTALL LOWER NO. 3 STEERING WHEEL COVER (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/airbag/#supplemental-restraint-system) )
62. INSTALL LOWER NO. 2 STEERING WHEEL COVER (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/airbag/#supplemental-restraint-system) )
63. INSTALL HEATER INLET WATER HOSE Install the water hose and attach the clip.
64. INSTALL HEATER OUTLET WATER HOSE Use the same procedure described for the heater inlet water hose.
65. INSTALL AIR CONDITIONER TUBE AND ACCESSORY Remove the attached vinyl tape from the tube. Sufficiently apply compressor oil to a new O-ring and fitting surface of the air conditioning tube assembly. Compressor oil: ND-OIL 8 or equivalent Install the O-ring on the air conditioner tube and accessory. Install the air conditioner tube and accessory.
66. INSTALL SUCTION HOSE SUB-ASSEMBLY Remove the attached vinyl tape from the hose. Sufficiently apply compressor oil to a new O-ring and the fitting surface of the suction hose sub-assembly. Compressor oil: ND-OIL 8 or equivalent Install the O-ring on the suction hose sub-assembly. Move the hook connector in the direction indicated by the arrow in the illustration. Insert the pipe joint into the fitting hole securely and tighten the bolt. Torque: 9.8 N*m (100 kgf*cm, 87 in.*lbf)
67. INSTALL WINDSHIELD WIPER MOTOR AND LINK ASSEMBLY (See «INSTALLATION»(ref-283123-S10239775612008041700000) )
68. INSTALL FRONT FENDER TO COWL SIDE SEAL RH (See «INSTALLATION»(ref-283123-S10239775612008041700000) )
69. INSTALL FRONT FENDER TO COWL SIDE SEAL LH (See «INSTALLATION»(ref-283123-S10239775612008041700000) )
70. INSTALL COWL TOP VENTILATOR LOUVER SUB-ASSEMBLY (See «INSTALLATION»(ref-283123-S10239775612008041700000) )
71. INSTALL FRONT WIPER ARM AND BLADE ASSEMBLY LH (See «INSTALLATION»(ref-283123-S10239775612008041700000) )
72. INSTALL FRONT WIPER ARM AND BLADE ASSEMBLY RH (See «INSTALLATION»(ref-283123-S10239775612008041700000) )
73. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
74. INSPECT STEERING PAD (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/airbag/#supplemental-restraint-system) )
75. INSPECT FRONT PASSENGER SIDE KNEE AIRBAG ASSEMBLY (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/airbag/#supplemental-restraint-system) )
76. INSPECT SRS WARNING LIGHT Inspect the SRS warning light (See «DIAGNOSIS SYSTEM»(/lexus/es/xv40-2006-2009/remont/airbag/#supplemental-restraint-system) ).
77. PERFORM INITIALIZATION NOTE: Some systems need initialization after reconnecting the negative battery terminal (See «INITIALIZATION»(ref-283083-S29543038892008041700000) ).
78. ADD ENGINE COOLANT (See «ON-VEHICLE INSPECTION»(/lexus/es/xv40-2006-2009/remont/cooling-fan/#engine-cooling-system) )
79. CHECK FOR ENGINE COOLANT LEAKS
80. CHARGE WITH REFRIGERANT (See «REPLACEMENT»(ref-283108-S11484630632008041700000) )
81. WARM UP COMPRESSOR (See «REPLACEMENT»(ref-283108-S11484630632008041700000) )
82. CHECK FOR REFRIGERANT LEAKS (See «REPLACEMENT»(ref-283108-S11484630632008041700000) )
83. INSTALL ENGINE ROOM SIDE COVER RH (See «INSTALLATION»(ref-283123-S10239775612008041700000) )
84. INSTALL ENGINE ROOM SIDE COVER LH (See «INSTALLATION»(ref-283123-S10239775612008041700000) )
85. INSTALL HOOD HINGE COVER (for RH Side) (See «INSTALLATION»(ref-283123-S10239775612008041700000) )
86. INSTALL HOOD HINGE COVER (for LH Side) (See «INSTALLATION»(ref-283123-S10239775612008041700000) )
87. INSTALL COOL AIR INTAKE DUCT SEAL (See «INSTALLATION»(ref-283116-S26519527622008041700000) )

Scheme 134

See also:
• AIRBAG SYSTEM
• REMOVAL
• REMOVAL
• INSTALLATION
• ON-VEHICLE INSPECTION