Air Conditioning: Diagnosis Lexus RX II рестайлинг

HOW TO PROCEED WITH TROUBLESHOOTING

The intelligent tester can be used in steps 2 , 5 , 6 , 7 and 10 .

1. VEHICLE BROUGHT TO WORKSHOP
2. CHECK AND CLEAR DTCS
3. PROBLEM SYMPTOM CONFIRMATION SYMPTOM DOES NOT OCCUR (GO TO STEP 4) SYMPTOM OCCURS (GO TO STEP 5 )
4. SYMPTOM SIMULATION
5. CHECK BODY MULTIPLEX COMMUNICATION SYSTEM Check for DTC outputs. MULTIPLEX DTC OUTPUT (PROCEED TO "BODY MULTIPLEX COMMUNICATION SYSTEM") NO MULTIPLEX DTC (GO TO STEP 6)
6. CHECK CAN COMMUNICATION SYSTEM CAN DTC OUTPUTS (PROCEED TO "CAN COMMUNICATION SYSTEM") NO CAN DTC (GO TO STEP 7)
7. DTC CHECK (OTHER THAN MULTIPLEX DTC) TROUBLE CODE (GO TO STEP 8) NORMAL SYSTEM CODE (GO TO STEP 9 )
8. DTC CHART GO TO STEP 10
9. PROBLEM SYMPTOMS TABLE
10. ACTUATOR CHECK
11. CIRCUIT INSPECTION
12. TERMINALS OF ECU
13. IDENTIFICATION OF PROBLEM
14. REPAIR OR REPLACE
15. CONFIRMATION TEST NEXT: END

PROBLEM SYMPTOMS TABLE

Air Conditioning System

AIR CONDITIONING SYSTEM PROBLEM SYMPTOMS CHART

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1. AIR CONDITIONING AMPLIFIER HINT: Check from the rear of the connector with it connected to the air conditioning amplifier assembly. AIR CONDITIONING AMPLIFIER CONNECTOR TERMINALS REFERENCE Terminal No. (Symbols) Wiring color Terminal Description Condition Specification A8-1 (IG+) - A8-6 (GND) Y - W-B Ignition switch signal Ignition switch: LOCK or ACC Below 1 V A8-1 (IG+) - A8-6 (GND) Y - W-B Ignition switch signal Ignition switch: ON 10 to 14 V A8-2 (B) - A8-6 (GND) SB - W-B Back-up power source Always 10 to 14 V A8-3 (MPX+) - A8-6 (GND) BR - W-B Terminal for BEAN Engine idling after engine warmed up Pulse generation A8-4 (MPX-) - A8-6 (GND) GR - W-B Terminal for BEAN Engine idling after engine warmed up Pulse generation A8-5 (WIP) - A8-6 (GND) W-W-B Wiper operation signal Ignition switch: ON Wiper stop position Below 1 V A8-5 (WIP) - A8-6 (GND) W-W-B Wiper operation signal Ignition switch: ON Other than wiper stop position (operating) 10 to 14 V A8-6 (GND) - Body ground W-B - Body ground Ground for main power supply Always Below 1 V A8-8 (FDEF) - A8-6 (GND) B - W-B Front deicer switch signal Ignition switch: ON Front deicer switch: OFF 10 to 14 V A8-8 (FDEF) - A8-6 (GND) B - W-B Front deicer switch signal Ignition switch: ON Front deicer switch: ON Below 1 V A8-9 (BLW) - A8-6 (GND) L - W-B Blower switch signal Ignition switch: ON Blower switch: ON Pulse generation (see a waveform 1) A8-10 (TSD) - A8-6 (GND) R - W-B Light sensor (Driver side) Ignition switch: ON Light sensor covered with a cloth Below 0.8 V A8-10 (TSD) - A8-6 (GND) R - W-B Light sensor (Driver side) Ignition switch: ON Light sensor exposed to electric light 0.8 to 4.3 V A8-11 (TSP) - A8-6 (GND) Y-W-B Light sensor (Passenger side) Ignition switch: ON Light sensor covered with a cloth Below 0.8 V A8-11 (TSP) - A8-6 (GND) Y - W-B Light sensor (Passenger side) Ignition switch: ON Light sensor exposed to electric light 0.8 to 4.3 V A8-18 (HR) - A8-6 (GND) W - W-B Blower switch signal Ignition switch: ON Blower switch: OFF 10 to 14 V A8-18 (HR) - A8-6 (GND) W - W-B Blower switch signal Ignition switch: ON Blower switch: ON Below 1 V A8-18 (HR) - A8-6 (GND) W - W-B Blower switch signal Ignition switch: OFF Blower switch: OFF Below 1 V A8-19 (DFG) - A8-6 (GND) G - W-B Rear defogger switch signal Ignition switch: ON Rear defogger switch: OFF 10 to 14 V A8-19 (DFG) - A8-6 (GND) G - W-B Rear defogger switch signal Rear defogger switch: ON Below 1 V A8-21 (TR) - A8-26 (SG-5) O-V Room temperature sensor signal Ignition switch: ON Cabin temperature: 25°C (77°F) 1.8 to 2.2 V A8-21 (TR) - A8-26 (SG-5) O-V Room temperature sensor signal Ignition switch: ON Cabin temperature: 40°C (105°F) 1.3 to 1.7 V A8-22 (S5) - A8-6 (GND) SB - W-B Power supply for humidity sensor Ignition switch: ON 4.5 to 5.5 V A8-24 (SSR+) - A8-6 (GND) P - W-B Humidity sensor signal Ignition switch: ON Cabin humidity: 40% 2.0 V A8-24 (SSR+) - A8-6 (GND) P - W-B Humidity sensor signal Ignition switch: ON Cabin humidity: 60% 2.5 V A8-26 (SG-5) - Body ground V - Body ground Ground for room temperature sensor Always Below 1 V A7-3 (AIR) - A8-6 (GND) R - W-B Recirculation/Fresh switch signal Ignition switch: ON Recirculation/Fresh switch: FRESH Below 1 V A7-3 (AIR) - A8-6 (GND) R - W-B Recirculation/Fresh switch signal Ignition switch: ON Recirculation/Fresh switch: RECIRCULATION 10 to 14 V A7-4 (AIF) - A8-6 (GND) G - W-B Recirculation/Fresh switch signal Ignition switch: ON Recirculation/Fresh switch: RECIRCULATION Below 1 V A7-4 (AIF) - A8-6 (GND) G - W-B Recirculation/Fresh switch signal Ignition switch: ON Recirculation/Fresh switch: FRESH 10 to 14 V A7-5 (AOF) - A8-6 (GND) W - W-B Mode switch signal Ignition switch: ON Mode switch: DEF Below 1 V A7-5 (AOF) - A8-6 (GND) W - W-B Mode switch signal Ignition switch: ON Mode switch: FACE 10 to 14 V A7-6 (AOD) - A8-6 (GND) B - W-B Mode switch signal Ignition switch: ON Mode switch: FACE Below 1 V A7-6 (AOD) - A8-6 (GND) B - W-B Mode switch signal Ignition switch: ON Mode switch: DEF 10 to 14 V A7-7 (TPI) - A7-17 (SG-4) BR - L Recirculation/Fresh switch signal Ignition switch: ON Recirculation/Fresh switch: RECIRCULATION Above 4 V A7-7 (TPI) - A7-17 (SG-4) BR - L Recirculation/Fresh switch signal Ignition switch: ON Recirculation/Fresh switch: FRESH Below 1 V A7-8 (TPO) - A7-18 (SG-3) Y - R Mode switch signal Ignition switch: ON Mode switch: FACE Below 1 V A7-8 (TPO) - A7-18 (SG-3) Y - R Mode switch signal Ignition switch: ON Mode switch: DEF Above 4 V A7-9 (TPD) - A7-20 (SG-1) P - BR Temperature switch signal (Driver side) Ignition switch: ON Temperature switch: MAX. COOL Above 4 V A7-9 (TPD) - A7-20 (SG-1) P - BR Temperature switch signal (Driver side) Ignition switch: ON Temperature switch: MAX. HOT Below 1 V A7-10 (TPP) - A7-19 (SG-2) V - W Temperature switch signal (Passenger side) Ignition switch: ON Temperature switch: MAX. COOL Above 4 V A7-10 (TPP) - A7-19 (SG-2) V - W Temperature switch signal (Passenger side) Ignition switch: ON Temperature switch: MAX. HOT Below 1 V A7-11 (SG) - Body ground L - Body ground Ground for evaporator temperature sensor Always Below 1 V A7-12 (TE) - A7-11 (SG) GR - L Evaporator temperature sensor signal Ignition switch: ON Evaporator temperature: 0°C (32°F) 2.2 to 2.6 V A7-12 (TE) - A7-11 (SG) GR - L Evaporator temperature sensor signal Ignition switch: ON Evaporator temperature: 15°C (59°F) 1.3 to 1.7 V A7-13 (S5-4) - A7-17 (SG-4) B - L Power supply for air inlet damper position sensor Ignition switch: ON 4.5 to 5.5 V A7-14 (AMDC) - A8-6 (GND) LG - W-B Temperature switch (Driver side) Ignition switch: ON Temperature switch: MAX. HOT Below 1 V A7-14 (AMDC) - A8-6 (GND) LG - W-B Temperature switch (Driver side) Ignition switch: ON Temperature switch: MAX. COOL 10 to 14 V A7-15 (AMDH) - A8-6 (GND) O - W-B Temperature switch (Driver side) Ignition switch: ON Temperature switch: MAX. COOL Below 1 V A7-15 (AMDH) - A8-6 (GND) O - W-B Temperature switch (Driver side) Ignition switch: ON Temperature switch: MAX. HOT 10 to 14 V A7-16 (AMPC) - A8-6 (GND) R - W-B Temperature switch (Passenger side) Ignition switch: ON Temperature switch: MAX. HOT Below 1 V A7-16 (AMPC) - A8-6 (GND) R - W-B Temperature switch (Passenger side) Ignition switch: ON Temperature switch: MAX. COOL 10 to 14 V A7-17 (SG-4) - Body ground L - Body ground Ground for air inlet damper position sensor Always Below 1 V A7-18 (SG-3) - Body ground R - Body ground Ground for air outlet damper position sensor Always Below 1 V A7-19 (SG-2) - Body ground W - Body ground Ground for air mix damper position sensor (Passenger side) Always Below 1 V A7-20 (SG-1) - Body ground BR - Body ground Ground for air mix damper position sensor (Driver side) Always Below 1 V A7-21 (S5-3) - A7-18 (SG-3) V - R Power supply for air outlet damper position sensor Ignition switch: ON 4.5 to 5.5 V A7-22 (S5-2) - A7-19 (SG-2) L - W Power supply for air mix damper position sensor (Passenger side) Ignition switch: ON 4.5 to 5.5 V A7-23 (S5-1) - A7-20 (SG-1) GR - BR Power supply for air mix damper position sensor (Driver side) Ignition switch: ON 4.5 to 5.5 V A7-24 (AMPH) - A8-6 (GND) G - W-B Temperature switch (Passenger side) Ignition switch: ON Temperature switch: MAX. COOL Below 1 V A7-24 (AMPH) - A8-6 (GND) G - W-B Temperature switch (Passenger side) Ignition switch: ON Temperature switch: MAX. HOT 10 to 14 V Waveform 1: Measure the waveform between terminal BLW (A8-9) of the A/C amplifier assembly and body ground. OK: Waveform appears as shown in the illustration. HINT: Waveform cycle varies with the blower level.
2. HYBRID VEHICLE CONTROL ECU HINT: Check from the rear of the connector with it connected to the hybrid vehicle control ECU. HYBRID VEHICLE CONTROL ECU CONNECTOR TERMINALS REFERENCE Terminal No. (Symbols) Wiring color Terminal Description Condition Specification H34-13 (PR2) - H34-20 (HP) L-W - L-B A/C Pressure sensor signal Ignition switch: ON A/C switch: ON Refrigerant pressure: 0.196 to 3.14 Mpa (32 kgf/ cm 2 ) Below 1 V H34-13 (PR2) - H34-20 (HP) L - W-L-B A/C Pressure sensor signal Ignition switch: ON A/C switch: ON Refrigerant pressure: Below 0.196 Mpa (2.0 kgf/ cm 2 ) or more than 3.14 Mpa 10 to 14 V H34-19 (TAM) - H32-28 (E2) Y-BR Ambient temperature sensor signal Ignition switch: ON at 25°C (77°F) 1.8 to 2.2 V H34-19 (TAM) - H32-28 (E2) Y - BR Ambient temperature sensor signal Ignition switch: ON at 40°C (104°F) 1.2 to 1.6 V H33-14 (CLK) - Body ground G - Body ground Compressor operation signal Ignition switch: ON Pulse generation (See a waveform A) H33-15 (ITE) - Body ground W - Body ground Compressor operation signal Ignition switch: ON Pulse generation (See b waveform B) H33-16 (ETI) - Body ground Y - Body ground Compressor operation signal Ignition switch: ON Pulse generation (See c waveform C) H33-18 (STB) - Body ground B - Body ground Compressor operation signal Ignition switch: ON 10 to 14 V H33-18 (STB)-Body ground B - Body ground Compressor operation signal Ignition switch: OFF Below 1 V H34-4 (WP) - Body ground L - Body ground Water pump operation signal Not operate the heater water pump 10 to 14 V H34-4 (WP) - Body ground L - Body ground Water pump operation signal Operate the heater water pump Below 1 V Waveform A: Measure the waveform between terminal CLK (H33-14) of the hybrid vehicle control ECU and body ground. OK: Waveform appears as shown in the illustration. HINT: Waveform cycle varies with the communication contents. Waveform B: Measure the waveform between terminal ITE (H33-15) of the hybrid vehicle control ECU and body ground. OK: Waveform appears as shown in the illustration. HINT: Waveform cycle varies with the communication contents. Waveform C: Measure the waveform between terminal ETI (H33-16) of the hybrid vehicle control ECU and body ground. OK: Waveform appears as shown in the illustration. HINT: Waveform cycle varies with the communication contents.
3. INTEGRATION CONTROL & PANEL ASSEMBLY HINT: Check from the rear of the connector with it connected to the integration control & panel assembly. INTEGRATION CONTROL & PANEL ASSEMBLY CONNECTOR TERMINALS REFERENCE Terminal No. (Symbols) Wiring color Terminal Description Condition Specification C4-1 (+B) - C4-7 (GND) O - W-B Main power supply Always 10 to 14 V C4-2 (ACC) - C4-7 (GND) GR - W-B ACC power supply Ignition switch: ACC 10 to 14 V C4-4 (LP) - C4-7 (GND) P - W-B Security indicator Security: Operate 10 to 14 V C4-5 (MPX+) - C4-7 (GND) L - W-B Terminal for BEAN Ignition switch: ON Pulse generation C4-7 (GND) - Body ground W-B - Body ground Ground for power supply Always Below 1 V C4-8 (ILL+) - C4-14 (ILL-) G - W Power supply for illumination Dimmer switch: OFF Below 1 V C4-8 (ILL+) - C4-14 (ILL-) G - W Power supply for illumination Dimmer switch: TAIL or HEAD 10 to 14 V C4-9 (IG+) - C4-7 (GND) LG - W-B IG power supply Ignition switch: ON 10 to 14 V C4-11 (F) - C4-7 (GND) V - W-B Hazard switch Hazard switch: OFF 10 to 14 V C4-11 (F) - C4-7 (GND) V - W-B Hazard switch Hazard switch: ON Below 1 V C4-12 (MPX-) - C4-7 (GND) R - W-B Terminal for BEAN Ignition switch: ON Pulse generation C4-14 (ILL-) - Body ground W - Body ground Ground for illumination Always Below 1 V
4. MULTI DISPLAY ASSEMBLY (See «TERMINALS OF ECU»(ref-283016-S13426757852008041400000) )

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1. LIST OF OPERATION METHODS By operating each of the A/C control switches as shown in the diagram below, it is possible to enter the diagnostic check mode.
2. DESCRIPTION When troubleshooting a vehicle with the diagnosis system, the only difference from the usual troubleshooting procedure is connecting the intelligent tester to the vehicle and reading various date output from the vehicle's air conditioning amplifier. The air conditioning amplifier records DTCs when the computer detects a malfunction in the computer itself or in its circuits. To check the DTCs, connect the intelligent tester to the DLC3 on the vehicle. The intelligent tester enables you to erase the DTCs, activate the various actuators, and check the freeze frame date and Data List.
3. CHECK THE DLC3 The air conditioning amplifier uses ISO 15765-4 for communication. The terminal arrangement of the DLC3 complies with SAE J1962 and matches the ISO 15765-4 format. DLC3 CONNECTOR TERMINALS REFERENCE Symbols (Terminal No.) Terminal Description Condition Specified Condition SILO (7) - SG (5) Bus "+" line During transmission Pulse generation CG (4) - Body ground Chassis ground Always Below 1 ohms SG (5) - Body ground Signal ground Always Below 1 ohms BAT (16) - Body ground Battery positive Always 11 to 14 V CANH (6) - CANL (14) CAN bus line Ignition switch off (1) 54 to 69 ohms CANH (6) - CG (4) HIGH-level CAN bus line Ignition switch off (1) 200 ohms or higher CANL (14) - CG (4) LOW-level CAN bus line Ignition switch off (1) 200 ohms or higher CANH (6) - BAT (16) HIGH-level CAN bus line Ignition switch off (1) 6 kohms or higher CANL (14) - BAT (16) LOW-level CAN bus line Ignition switch off (1) 6 kohms or higher NOTE: (1) Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not operate the ignition switch, any other switches or the doors. Connect the cable of the intelligent tester to the DLC3, turn the ignition switch to the ON position and attempt to use the tester. If the display indicates that a communication error has occurred, there is a problem either with the vehicle or with the tester. If communication is normal when the tester is connected to another vehicle, inspect the DLC3 on the original vehicle. If communication is still not possible when the tester is connected to another vehicle, the problem may be in the tester itself. Consult the Service Department listed in the tester's instruction manual.
4. INDICATOR CHECK Turn the ignition switch to the ON position while pressing the A/C control "AUTO" switch and "R/F" switch simultaneously. Check that the indicators come on and go off 4 times in succession at 1 second intervals. HINT: If a navigation system is installed, the indicator will blink and buzzer will sound. After the indicator check is completed, the system enters the DTC mode automatically. Press the "OFF" switch to cancel the check mode.

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1. DTC CHECK USING INTELLIGENT TESTER Connect the intelligent tester to the DLC3. Turn the ignition switch ON. Turn the tester ON. Enter the following menu items: DIAGNOSIS / OBD/ MOBD / DTC INFO / CURRENT CODES. HINT: Refer to the intelligent tester operator's manual for further details. Check the details of the DTCs. Clear the DTCs. HINT: After repairing the malfunctions, clear the DTC. Connect the intelligent tester to the DLC3. Turn the ignition switch ON. Enter the following menu items: DIAGNOSIS / OBD/MOBD / DTC INFO / CLEAR CODES. HINT: Refer to the intelligent tester operator's manual for further details. Press the YES button.
2. DTC CHECK (SENSOR CHECK) After the indicator check is completed, the system enters the DTC check mode automatically. Read the codes displayed on the panel. Refer to the list of codes when reading the codes. (Trouble codes are output on the temperature display.) HINT: Refer to the DTC chart (See «DIAGNOSTIC TROUBLE CODE CHART»(ref-283012-S09354068292008041400000) ) for details of the codes. If the slower display is desired, press the "UPDr" switch and change it to the operation. Each time the "UPDr" switch is pressed, the display changes by 1 step. Clear the DTCs. HINT: After repairing the malfunctions, clear the DTC. (1) During sensor check, press the "Fr. DEF" switch and "Rr. DEF" switch at the same time.

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1. DATA LIST HINT: From the DATA LIST displayed on the intelligent tester, you can read the value of the display, sensor, actuator and so on without parts removal. Reading the DATA LIST as the first step of troubleshooting is one way to shorten labor time. Connect the intelligent tester to the DLC3. Turn the ignition switch to the ON position. Turn the tester ON. Enter the following menus: DIAGNOSIS / OBD/ MOBD / AIR CONDITIONER / DATA LIST. Check the value(s) by referring to the table below. DATA LIST REFERENCE Item Measurement Item / Display (Range) Normal Condition Diagnostic Note ROOM TEMP Room temperature sensor / min.: -6.5°C (20.3°F) max.: 57.25°C (135.5°F) Actual cabin temperature is displayed Open in the circuit: -6.5°C (20.3°F) Short in the circuit: 57.25°C (135.05°F) AMBI TEMP SENS Ambient temperature sensor /min.: -29.7°C (-21.46°F) max.: 59.55°C (139.19°F) Actual ambient temperature is displayed Open in the circuit: -29.7°C (-21.46°F) Short in the circuit: 59.55°C (139.19°F) EVAP TEMP Evaporator temperature sensor /min.:- 29.7°C(-21.46°F) max.: 59.55°C (139.19°F) Actual evaporator temperature is displayed Open in the circuit: -29.7°C (-21.46°F) Short in the circuit: 59.55°C (139.19°F) SOLAR SENS-D Solar sensor (Driver side) / min.: 0 max.: 255 Increases as brightness increases Open in the circuit: 0 Short in the circuit: 255 SOLAR SENS-P Solar sensor (Passenger side) /min.: 0 max.: 255 Increases as brightness increases Open in the circuit: 0 Short in the circuit: 255 COOLANT TEMP Engine coolant temperature /min.: 1.3°C (34.34°F) max.: 90.55°C (194.99°F) Actual engine coolant temperature is displayed while the engine is warmed up - SET TEMP-D Set temperature (Driver side) /min.: 0 max.: 255 The same contents as a setting temperature display part are displayed - SET TEMP-P Set temperature (Passenger side) / min.: 0 max.: 255 The same contents as a setting temperature display part are displayed - ESTIMATE TEMP-D Estimated temperature (Driver side) / min.: -358.4°C (-613.12°F) max.: 358.4°C (677.12°F) Damper is at "MAX. COOL": -358.4°C (-613.12°F) Damper is at "MAX. HOT": 358.4°C (677.12°F) - ESTIMATE TEMP-P Estimated temperature (Passenger side) /min.: -358.4°C (-613.12°F) max.: 358.4°C (677.12°F) Damper is at "MAX. COOL": -358.4°C (-613.12°F) Damper is at "MAX. HOT": 358.4°C (677.12°F) - A/M DAMP POS-D Air mix damper position (Driver side) / min.: -14% max.: 113.5 % Damper is at "MAX. COOL": -5% Damper is at "MAX. HOT": 105% - A/M DAMP POS-P Air mix damper position (Passenger side) /min.: -14% max.: 113.5% Damper is at "MAX. COOL": -5% Damper is at "MAX. HOT": 105% - A/O DAMP POS Air outlet damper position /min.:-14% max.: 113.5% Damper is at "FACE": 0% Damper is at "FACE/FOOT": 33.5% Damper is at "FOOT" (Manual): 53.5% Damper is at "FOOT" (Auto): 53.5% Damper is at "FACE/DEF": 73.5% Damper is at "DEF": 100% Open in the circuit: 50.0% A/I DAMP POS Air inlet damper position /min.: -14% max.: 113.5% Damper is at "RECIRCULATION": -9% Damper is at "FRESH": 109% Damper is at "HALF-RECIRCULATION": 35 to 75% Open in the circuit: 50.0% A/M DAMP TARG-D Air mix damper target position (Driver side) /min.: -14% max.: 113.5% Damper is at "MAX. COOL": -5% Damper is at "MAX. HOT": 105% - A/M DAMP TARG-P Air mix damper target position (Passenger side) /min.: -14% max.: 113.5% Damper is at "MAX. COOL": -5% Damper is at "MAX. HOT": 105% - A/O DAMP TARG Air outlet damper target position /min.: -14% max.: 113.5% Damper is at "FACE": 0% Damper is at "FACE/FOOT": 33.5% Damper is at "FOOT" (Manual): 53.5% Damper is at "FOOT" (Auto): 53.5% Damper is at "FACE/DEF": 73.5% Damper is at "DEF": 100% Open in the circuit: 50.0% A/I DAMP TARG Air inlet damper target position /min.: -14% max.: 113.5% Damper is at "RECIRCULATION": -9% Damper is at "FRESH": 109% Damper is at "HALF-RECIRCULATION": 35 to 75% Open in the circuit: 50.0% HAND FREE TEL Handsfree telephone / OFF, ON - - BLOWER LEVEL Blower motor speed level / min.: Level 0 max.: 31 Customized value will be displayed - AMBI TEMP Adjusted ambient temperature /min.: -30.8°C (-23.44°F) max.: 50.8°C (123.44°F) Customized value will be displayed - SET TEMP SHIFT Shift set temperature / +2C, +1C, NORMAL, -1C, -2C Customized value will be displayed - AIR INLET MODE Air inlet mode /AUTO, MANUAL Customized value will be displayed - COMPRESSOR MODE Compressor mode /AUTO, MANUAL Customized value will be displayed - COMPRS/DEF OPER Compressor / DEF operation mode / LINK, NORMAL Customized value will be displayed - AUTO BLOW UP Foot / DEF automatic blow up function /ON, OFF Customized value will be displayed - FOOT/DEF MODE Foot / DEF auto mode / ON, OFF Customized value will be displayed - AMBIENT TMP SFT Ambient temperature shift / +3C, +2C, +1C, NORMAL, -1C, -2C, -3C Customized value will be displayed - DESTINATION Destination / DOMEST, USA, EUROPE, AUSTRAL, MIDEAST, NOINFO Changes with destinations - HUMIDITY SENS Humidity sensor / min.: 0% max.: 100% Actual cabin humidity is displayed - COMPRS SPD Compressor speed / min.: 0 max.: 65,535 rpm Displays actual rotation speed in the range between 0 rpm and 8,600 rpm - COMPRS TARG SPD Compressor target speed /min.: 0 max.: 65,535 rpm Displays actual rotation speed in the range between 0 rpm and 8,600 rpm - #CODES Number of trouble codes /min.: 0 max.: 255 Number of DTCs will be displayed
2. ACTIVE TEST HINT: Performing the ACTIVE TEST using the intelligent tester allows the relay, VSV, actuator and so on to operate without parts removal. Performing the ACTIVE TEST as the first step of troubleshooting is one way to shorten labor time. It is possible to display the DATA LIST on the intelligent tester during the ACTIVE TEST. Connect the intelligent tester to the DLC3. Turn the ignition switch to the ON position. Turn the tester ON. Enter the following menus: DIAGNOSIS / OBD / MOBD / AIR CONDITIONER / ACTIVE TEST. Check the value(s) by referring to the table below. ACTIVE TEST REFERENCE Item Test Details / Display (Range) Diagnostic Note BLOWER MOTOR Blower motor / min.: 0 max.: 31 - AIR MIX DAMP-D Air mix damper (Driver side) /min.: -14% max.: 113.5% - AIR MIX DAMP-P Air mix damper (Passenger side) /min.: -14% max.: 113.5% - A/O MODE DAMP-D Air outlet damper position (Driver side) /min.: -14% max.: 113.5% - A/I DAMP-LINEAR Air inlet damper position (linear) /min.: -14% max.: 113.5% - COMPRS TARG SPD Compressor target speed / min.: 0 max.: 65,535 - DEFOGGER RLY-R Defogger relay (Rear) / OFF, ON - DEICER RLY-F Deicer relay (Front) / OFF, ON - WATER PUMP Water pump / OFF, ON - ELECTRICAL FAN Electrical fan / OFF, ON - DEFOGGER RLY-R Defogger relay (Rear) / OFF, ON - DEICER RLY-F Deicer relay (Front) / OFF, ON - WATER PUMP Water pump / OFF, ON - ELECTRICAL FAN Electrical fan / OFF, ON

DIAGNOSTIC TROUBLE CODE CHART

DIAGNOSTIC TROUBLE CODE CHART

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1. ACTUATOR CHECK After entering the DTC check mode (Sensor Check Mode), press the "R/F" switch. At each damper, the motor and relay automatically operate the actuator check at 1 second intervals from step No.1 to No. 10 continuously, check the temperature and air flow visually and by hand. If the slower display is desired, press the "UPDr" switch and change it to step operation. Each time the "UPDr" switch is pressed, the display changes by 1 step. HINT: Codes are displayed from the smaller to the larger numbers in order. To cancel the check mode, press the "OFF" switch. DISPLAY CODE WITH CONDITIONS Step No. Display code Conditions Blower level Air flow vent Air inlet damper Air mix damper A/C compressor revolution speed (rpm) 1 0 0 FACE (0 %) FRESH (109 %) "COOL" side (-5 %) 0 2 1 1 FACE (0 %) FRESH (109 %) "COOL" side (-5 %) 0 3 2 17 FACE (0 %) R/F (50 %) "COOL" side (-5 %) 8,600 4 3 17 FACE (0 %) RECIRCULATION (-9 %) "COOL" side (-5 %) 8,600 5 4 17 B/L (33.5 %) FRESH (109 %) "COOL"/"HOT" (50.0% opened) 8,600 6 5 17 FOOT (AUTO) (53.5 %) FRESH (109%) "COOL"/"HOT" (50.0% opened) 5,000 7 6 17 FOOT (MANUAL) (53.5 %) FRESH (109%) "COOL"/"HOT" (50.0% opened) 5,000 8 7 17 FOOT (MANUAL) (53.5 %) FRESH (109%) "HOT" side (105%) 5,000 9 8 17 F/D (73.5 %) FRESH (109 %) "HOT" side (105%) 5,000 10 9 31 DEF (100 %) FRESH (109 %) "HOT" side (105%) 5,000

INSPECTION PROCEDURE

1. CHECK MULTIPLEX COMMUNICATION SYSTEM Use the intelligent tester to check if the Multiplex Communication System is functioning normally. Result RESULT REFERENCE Result Proceed to MPX DTC is not output A MPX DTC is output B B:GO TO «MULTIPLEX COMMUNICATION SYSTEM»(ref-282977-S11093581492008041400000) A: Go to next step
2. CHECK CAN COMMUNICATION SYSTEM Use the intelligent tester to check if the CAN Communication System is functioning normally. Result RESULT REFERENCE Result Proceed to CAN DTC is not output A CAN DTC is output B B: GO TO «CAN COMMUNICATION SYSTEM»(ref-282980-S07575635502008041400000) A: REPLACE W/MOTOR COMPRESSOR ASSEMBLY

Note. If DTC B1473/73 and B1498/98 (inverter local communication problem) are output simultaneously, perform inspection for B1498/98 first by following the flow chart.

Scheme 201

Scheme 202

Scheme 203

1. CHECK DIAGNOSTIC TROUBLE CODE Check if DTCs for the hybrid control system are output using the intelligent tester. Result RESULT REFERENCE Result Proceed to DTC is not output A DTC (P3108) is output A Except DTC (P3108) is output B B: GO TO «HYBRID CONTROL SYSTEM»(ref-282981-S38304048082008041400000) A: Go to next step
2. CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU - W/MOTOR COMPRESSOR ASSEMBLY) Disconnect the connector from hybrid vehicle control ECU and w/ motor compressor assembly. CAUTION: Do not disconnect the connector on the high-voltage side. Measure the resistance according to the value(s) in the table below. Resistance RESISTANCE SPECIFIED CONDITION Tester connection (Symbols) Condition Specified condition C18-4 (STB) - H33-18 (STB) Always Below 1 ohms C18-4 (STB) - Body ground Always 10 kohms or higher NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
3. INSPECT W/MOTOR COMPRESSOR ASSEMBLY Reconnect the connector to the w/ motor compressor assembly. Measure the voltage according to the value(s) in the table below. Voltage VOLTAGE SPECIFIED CONDITION Tester connection (Symbols) Condition Specified condition H33-18 (STB) - Body ground Ignition switch ON 10 to 14 V H33-18 (STB) - Body ground Ignition switch OFF Below 1 V NG: REPLACE W/MOTOR COMPRESSOR ASSEMBLY OK: Go to next step
4. INSPECT HYBRID VEHICLE CONTROL ECU Reconnect the connector to the hybrid vehicle control ECU. Turn the ignition switch ON. Measure the voltage according to the value(s) in the table below. Voltage VOLTAGE SPECIFIED CONDITION Tester connection Symbol Condition Specified condition H33-18 (STB) - Body ground Ignition switch: ON Below 1 V NG: REPLACE HYBRID VEHICLE CONTROL ECU OK: REPLACE W/MOTOR COMPRESSOR ASSEMBLY

1. CHECK MULTIPLEX COMMUNICATION SYSTEM Use the intelligent tester to check if the Multiplex Communication System is functioning normally. Result RESULT REFERENCE Result Proceed to MPX DTC is not output A MPX DTC is output B B:GO TO «MULTIPLEX COMMUNICATION SYSTEM»(ref-282977-S11093581492008041400000) A: Go to next step
2. CHECK CAN COMMUNICATION SYSTEM Use the intelligent tester to check if the CAN Communication System is functioning normally. Result RESULT REFERENCE Result Proceed to CAN DTC is not output A CAN DTC is output B B: GO TO «CAN COMMUNICATION SYSTEM»(ref-282980-S07575635502008041400000) A: REPLACE W/MOTOR COMPRESSOR ASSEMBLY

1. CHECK MULTIPLEX COMMUNICATION SYSTEM Use the intelligent tester to check if the Multiplex Communication System is functioning normally. Result RESULT REFERENCE Result Proceed to MPX DTC is not output A MPX DTC is output B B:GO TO «MULTIPLEX COMMUNICATION SYSTEM»(ref-282977-S11093581492008041400000) A: Go to next step
2. CHECK CAN COMMUNICATION SYSTEM Use the intelligent tester to check if the CAN Communication System is functioning normally. Result RESULT REFERENCE Result Proceed to CAN DTC is not output A CAN DTC is output B B: GO TO «CAN COMMUNICATION SYSTEM»(ref-282980-S07575635502008041400000) A: REPLACE W/MOTOR COMPRESSOR ASSEMBLY

1. CHECK DIAGNOSTIC TROUBLE CODE (DTC B1499/99) Clear the DTC (See «DTC CHECK / CLEAR»(ref-283012-S19503822572008041400000) ). Read the DTC (See «DTC CHECK / CLEAR»(ref-283012-S19503822572008041400000) ). Result RESULT REFERENCE Result Proceed to DTC (B1499/99) is not output A DTC (B1499/99) is output B B:GO TO «MULTIPLEX COMMUNICATION SYSTEM»(ref-282977-S11093581492008041400000) A: SYSTEM OK

ON-VEHICLE INSPECTION

1. INSPECT CONDENSER If the fins of the cooler condenser assembly are dirty, clean them with water and dry them with compressed air. NOTE: Do not damage the fins of the cooler condenser assembly. If the fins of the cooler condenser assembly are bent, straighten them using a screwdriver or pliers.
2. INSPECT CONDENSER FOR LEAKAGE OF REFRIGERANT Using a halogen leak detector, check the pipe joints for gas leakage. If a gas leakage is detected in a joint, check the torque of the joint.

Scheme 204

Scheme 205

Scheme 206

Scheme 207

Scheme 208

Scheme 209

Scheme 210

Scheme 211

Scheme 212

1. DISCHARGE REFRIGERANT FROM REFRIGERATION SYSTEM (See «REPLACEMENT»(ref-283012-S22067965302008041400000) )
2. REMOVE ENGINE ROOM SIDE LH COVER NO.2 (See «REMOVAL»(ref-282992-S02024628612008041400000) )
3. REMOVE COOL AIR INTAKE DUCT SEAL (See «REMOVAL»(ref-282992-S02024628612008041400000) )
4. REMOVE AIR CLEANER CAP W7 INLET (See «REMOVAL»(ref-282992-S02024628612008041400000) )
5. REMOVE FRONT BUMPER STAY CENTER (See «REMOVAL»(ref-283008-S27414458892008041400000) )
6. DISCONNECT COOLER REFRIGERANT DISCHARGE HOSE NO.1 Remove the bolt and disconnect the cooler refrigerant discharge hose No.1 from the cooler condenser assembly. Remove the O-ring from the cooler refrigerant discharge hose No. 1. NOTE: Seal the openings of the disconnected parts using vinyl tape to prevent moisture and foreign matter from entering.
7. DISCONNECT AIR CONDITIONING TUBE AND ACCESSORY ASSEMBLY Remove the bolt and disconnect the air conditioning tube and accessory assembly. Remove the O-ring from the air conditioning tube and accessory assembly. NOTE: Seal the openings of the disconnected parts using vinyl tape to prevent moisture and foreign matter from entering.
8. REMOVE RADIATOR SUPPORT UPPER SUB-ASSEMBLY Remove the bolt and raise the bracket as shown in the illustration. Remove the cap. Disconnect the connector. Remove the 5 bolts, nut and radiator support upper sub-assembly.
9. REMOVE RADIATOR SUPPORT UPPER LH SUB-ASSEMBLY Remove the 4 bolts and radiator support upper LH sub-assembly.
10. REMOVE RADIATOR SUPPORT UPPER RH SUB-ASSEMBLY Remove the 4 bolts and radiator support upper RH sub-assembly.
11. REMOVE COOLER CONDENSER ASSEMBLY Release the 4 clamps and wire harness. Remove the 4 bolts and disconnect sub with fan radiator assembly. Remove the 2 screws and cooler condenser assembly.

Scheme 213

Scheme 214

Scheme 215

1. REMOVE COOLER DRYER Using a hexagon wrench 14 mm, remove the cap and filter from the modulator. Remove the O-ring from the cap. Using needle nose pliers, remove the cooler dryer.

Scheme 216

Scheme 217

1. INSTALL COOLER DRYER Using needle nose pliers, install the cooler dryer. Install a new O-ring to the cap. Sufficiently apply compressor oil to the fitting surfaces of the O-ring and the cap. Compressor oil: ND-OIL 11 or equivalent NOTE: Do not use any compressor oil other than ND-OIL 11 or equivalent. If any compressor oil other than ND-OIL 11 or equivalent is used, compressor motor insulation performance may decrease, resulting in leakage of electric power. Using hexagon wrench 14 mm, install the cap to the cooler condenser assembly. Torque: 2.9 N*m (30 kgf*cm, 25 in.*lbf)

Scheme 218

Scheme 219

Scheme 220

Scheme 221

1. INSTALL COOLER CONDENSER ASSEMBLY Install the cooler condenser assembly with the 2 screws. Torque: 3.9 N*m (40 kgf*cm, 35 in.*lbf) HINT: If the condenser is replaced with a new one, add compressor oil to the new condenser. Capacity: 40 cc (1.4 fl.oz.) Compressor oil: ND-11 or equivalent
2. INSTALL RADIATOR SUPPORT UPPER RH SUB-ASSEMBLY Install the radiator support upper RH sub-assembly with the 4 bolts. Torque: Bolt A 5.0 N*m (51 kgf*cm, 44 in.*lbf) Bolt B 7.0 N*m (71 kgf*cm, 62 in.*lbf) Bolt C 3.9 N*m (40 kgf*cm, 35 in.*lbf)
3. INSTALL RADIATOR SUPPORT UPPER LH SUB-ASSEMBLY Install the radiator support upper LH sub-assembly with the 4 bolts. Torque: Bolt A 5.0 N*m (51 kgf*cm, 44 in.*lbf) Bolt B 7.0 N*m (71 kgf*cm, 62 in.*lbf) Bolt C 3.9 N*m (40 kgf*cm, 35 in.*lbf)
4. INSTALL RADIATOR SUPPORT UPPER SUB-ASSEMBLY Install the radiator support upper sub-assembly with the 5 bolts and nut. Torque: Bolt 7.0 N*m (71 kgf*cm, 62 in.*lbf) Nut 8.0 N*m (82 kgf*cm, 71 in.*lbf) Connect the connectors. Install the cap. Install the bracket with the bolt. Torque: 9.8 N*m (100 kgf*cm, 87 in.*lbf)
5. INSTALL AIR CONDITIONING TUBE AND ACCESSORY ASSEMBLY Remove the attached vinyl tape from the tube and connecting part of the cooler condenser assembly. Sufficiently apply compressor oil to the new O-ring and fitting surface of the pipe joint. Compressor oil: ND-OIL 11 or equivalent NOTE: Do not use any compressor oil other than ND-OIL 11 or equivalent. If any compressor oil other than ND-OIL 11 or equivalent is used, compressor motor insulation performance may decrease, resulting in leakage of electric power. Install the O-ring on the air conditioning tube and accessory assembly. Connect the air conditioning tube and accessory assembly to the cooler condenser assembly with the bolt. Torque: 9.8 N*m (100 kgf*cm, 87 in.*lbf)
6. INSTALL COOLER REFRIGERANT DISCHARGE HOSE NO.1 Remove the attached vinyl tape from the tube and connecting part of the cooler condenser assembly. Sufficiently apply compressor oil to a new O-ring and fitting surface of the pipe joint. Compressor oil: ND-OIL 11 or equivalent NOTE: Do not use any compressor oil other than ND-OIL 11 or equivalent. If any compressor oil other than ND-OIL 11 or equivalent is used, compressor motor insulation performance may decrease, resulting in leakage of electric power. Install the O-ring to the cooler refrigerant discharge hose No.1. Connect the cooler refrigerant discharge hose No.1 on the cooler condenser assembly with the bolt. Torque: 9.8 N*m (100 kgf*cm, 87 in.*lbf)
7. INSTALL FRONT BUMPER STAY CENTER
8. INSTALL AIR CLEANER CAP W/ INLET
9. INSTALL COOL AIR INTAKE DUCT SEAL
10. INSTALL ENGINE ROOM SIDE LH COVER NO.2
11. CHARGE WITH REFRIGERANT (See «REPLACEMENT»(ref-283012-S22067965302008041400000) )
12. WARM UP COMPRESSOR (See «REPLACEMENT»(ref-283012-S22067965302008041400000) )
13. INSPECT REFRIGERANT LEAK (See «REPLACEMENT»(ref-283012-S22067965302008041400000) )

Scheme 222

1. INSPECT A/C ROOM TEMPERATURE SENSOR Remove the A/C room temperature sensor. Disconnect the connector from the A/C room temperature sensor. Measure the resistance according to the value(s) in the table below. Resistance RESISTANCE SPECIFIED CONDITION Tester connection Condition Specified condition 1 (THR) - 2 (GND) 10°C (50°F) 3.00 to 3.73 kohms 1 (THR) - 2 (GND) 15°C (59°F) 2.45 to 2.88 kohms 1 (THR) - 2 (GND) 20°C (68°F) 1.95 to 2.30 kohms 1 (THR) - 2 (GND) 25°C (77°F) 1.60 to 1.80 kohms 1 (THR) - 2 (GND) 30°C (86°F) 1.28 to 1.47 kohms 1 (THR) - 2 (GND) 35°C (95°F) 1.00 to 1.22 kohms 1 (THR) - 2 (GND) 40°C (104°F) 0.80 to 1.00 kohms 1 (THR) - 2 (GND) 45°C (113°F) 0.65 to 0.85 kohms 1 (THR) - 2 (GND) 50°C (122°F) 0.50 to 0.70 kohms 1 (THR) - 2 (GND) 55°C (131°F) 0.44 to 0.60 kohms 1 (THR) - 2 (GND) 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).

Scheme 223

1. INSPECT A/C AMBIENT TEMPERATURE SENSOR Remove the A/C ambient temperature sensor. Disconnect the connector from A/C ambient temperature sensor. Measure the resistance according to the value(s) in the table below. Resistance RESISTANCE SPECIFIED CONDITION Tester connection Condition Specified condition 1 - 2 10°C (50°F) 3.00 to 3.73 kohms 1 - 2 15°C (59°F) 2.45 to 2.88 kohms 1 - 2 20°C (68°F) 1.96 to 2.30 kohms 1 - 2 25°C (77°F) 1.60 to 1.80 kohms 1 - 2 30°C (86°F) 1.28 to 1.47 kohms 1 - 2 35°C (95°F) 1.00 to 1.22 kohms 1 - 2 40°C (104°F) 0.80 to 1.00 kohms 1 - 2 45°C (113°F) 0.65 to 0.85 kohms 1 - 2 50°C (122°F) 0.50 to 0.70 kohms 1 - 2 55°C (131°F) 0.44 to 0.60 kohms 1 - 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).

Scheme 224

1. INSPECT A/C EVAPORATOR TEMPERATURE SENSOR Remove the A/C evaporator temperature sensor (A/ C thermistor). Disconnect the connector from the A/C evaporator temperature sensor (A/C thermistor). Measure the resistance according to the value(s) in the table below. Resistance RESISTANCE SPECIFIED CONDITION Tester connection Condition Specified condition 1 - 2 -10°C (14°F) 7.30 to 9.10 kohms 1 - 2 -5°C (23°F) 5.65 to 6.95 kohms 1 - 2 0°C (32°F) 4.40 to 5.35 kohms 1 - 2 5°C (41 °F) 3.40 to 4.15 kohms 1 - 2 10°C (50°F) 2.70 to 3.25 kohms 1 - 2 15°C (59°F) 2.14 to 2.58 kohms 1 - 2 20°C (68°F) 1.71 to 2.05 kohms 1 - 2 25°C (77°F) 1.38 to 1.64 kohms 1 - 2 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 the graph).

Scheme 225

Scheme 226

1. INSPECT A/C PRESSURE SWITCH Low and high pressure cut side: Inspect pressure switch operation. Set the manifold gauge. Connect the positive (+) lead from the ohmmeter to terminal 4 and the negative (-) lead to terminal 1. Check continuity between the terminals when refrigerant pressure is changed, as shown in the illustration. If operation is not as specified, replace the liquid tube sub-assembly. Middle pressure cut side: Inspect pressure switch operation. Set the manifold gauge. Connect the positive (+) lead from the ohmmeter to terminal 2 and the negative (-) lead to terminal 3. Check continuity between the terminals when refrigerant pressure is changed, as shown in the illustration. If operation is not specified, replace the liquid tube sub-assembly A.

Scheme 227

Scheme 228

Scheme 229

Scheme 230

Scheme 231

Scheme 232

Scheme 233

1. REMOVE ENGINE ROOM SIDE LH COVER NO.2 (See «REMOVAL»(ref-282992-S02024628612008041400000) )
2. REMOVE ENGINE ROOM COVER SIDE (See «REMOVAL»(ref-282992-S02024628612008041400000) )
3. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
4. REMOVE SERVICE PLUG GRIP (See «REMOVAL»(ref-283000-S30250630812008041400000) )
5. DRAIN COOLANT (for Inverter) (See «COOLANT (for Inverter)»(ref-282994-S20755861102008041400000) )
6. REMOVE FRONT WIPER ARM AND BLADE ASSEMBLY RH (See «REMOVAL»(ref-282998-S30117535582008041400000) )
7. REMOVE FRONT WIPER ARM AND BLADE ASSEMBLY LH (See «REMOVAL»(ref-282998-S30117535582008041400000) )
8. REMOVE COWL TOP VENTILATOR LOUVER SUB-ASSEMBLY (See «REMOVAL»(ref-282998-S30117535582008041400000) )
9. REMOVE WINDSHIELD WIPER MOTOR ASSEMBLY (See «REMOVAL»(ref-282998-S30117535582008041400000) )
10. REMOVE COWL TOP PANEL SUB-ASSEMBLY OUTER (See «REMOVAL»(ref-282992-S02024628612008041400000) )
11. REMOVE COOL AIR INTAKE DUCT SEAL (See «REMOVAL»(ref-282992-S02024628612008041400000) )
12. REMOVE AIR CLEANER CAP W/ INLET (See «REMOVAL»(ref-282992-S02024628612008041400000) )
13. REMOVE AIR CLEANER W/ RESONATOR (See «REMOVAL»(ref-282995-S32845695932008041400000) )
14. REMOVE INVERTER BRACKET NO. 5 (See «REMOVAL»(ref-283001-S03413214732008041400000) )
15. REMOVE POWER STEERING ECU ASSEMBLY (See «REMOVAL»(ref-283001-S03413214732008041400000) )
16. REMOVE CIRCUIT BREAKER SENSOR NO.1 (See «REMOVAL»(ref-282981-S11649468332008041400000) )
17. REMOVE ENGINE ROOM WIRE NO.2 (See «REMOVAL»(ref-282981-S11649468332008041400000) )
18. REMOVE INVERTER RESERVE TANK SUB-ASSEMBLY (See «REMOVAL»(ref-282981-S11649468332008041400000) )
19. DISCONNECT WATER HOSE (See «REMOVAL»(ref-282981-S11649468332008041400000) )
20. DISCONNECT POWER STEERING ECU BRACKET (See «REMOVAL»(ref-282981-S11649468332008041400000) )
21. REMOVE INVERTER COVER (See «REMOVAL»(ref-282981-S11649468332008041400000) )
22. VERIFY THAT VOLTAGE OF W/CONVERTER ASSEMBLY IS 0 V (See «REMOVAL»(ref-282981-S11649468332008041400000) )
23. REMOVE ENGINE WIRE NO.4 (See «REMOVAL»(ref-282981-S11649468332008041400000) )
24. DISCONNECT HIGH VOLTAGE CABLE OF THE FRONT MOTOR (See «REMOVAL»(ref-282981-S11649468332008041400000) )
25. DISCONNECT MG ECU CONNECTOR (See «REMOVAL»(ref-282981-S11649468332008041400000) )
26. DISCONNECT NO.3 WIRE FRAME (See «REMOVAL»(ref-282981-S11649468332008041400000) )
27. INSTALL INVERTER COVER (See «REMOVAL»(ref-282981-S11649468332008041400000) )
28. SEPARATE RELAY BLOCK ASSEMBLY ENGINE ROOM (See «REMOVAL»(ref-282981-S11649468332008041400000) )
29. REMOVE INVERTER BRACKET NO.4 (See «REMOVAL»(ref-282981-S11649468332008041400000) )
30. REMOVE W/CONVERTER INVERTER ASSEMBLY (See «REMOVAL»(ref-282981-S11649468332008041400000) )
31. REMOVE HEATER WATER PUMP ASSEMBLY Release the 2 clamps and wire harness protector. Using pliers, grip the claws of the clip and slide the clip to disconnect the 2 heater water hoses. NOTE: Do not apply any excessive force to the heater water hose. Prepare a drain pan or cloth for when the cooling water leaks. Release the connector. Remove the 2 bolts and heater water pump assembly.

Scheme 234

1. INSPECT HEATER WATER PUMP ASSEMBLY Remove the heater water pump assembly. Disconnect the connector from the heater water pump assembly. Connect the positive (+) lead terminal 2 of the heater water pump assembly connector and the negative (-) lead to terminal 1. OK: Heater water pump operates smoothly. NOTE: Complete operation within 10 seconds if there is no water in the heater water pump assembly.

1. INSPECT HEATER RELAY Remove the heater relay from the instrument panel J/B. Measure the resistance according to the value(s) in the table below. Resistance RESISTANCE SPECIFIED CONDITION Tester connection Condition Specified condition 3 - 4 Always Below 1 ohms 3 - 4 When battery voltage applied to terminals 1 and 2 10 kohms or higher 3 - 5 Always 10 kohms or higher 3 - 5 When battery voltage applied to terminals 1 and 2 Below 1 ohms If the resistance is not as specified, replace the heater relay. NOTE: While using the battery during inspection, do not bring the positive and negative tester probes too close to each other as a short circuit may occur.

Scheme 235

Scheme 236

1. REMOVE CONSOLE PANEL UPPER FRONT (See «REMOVAL»(ref-282983-S14613677712008041400000) )
2. REMOVE INSTRUMENT PANEL FINISH PANEL LOWER (See «REMOVAL»(ref-282983-S14613677712008041400000) )
3. REMOVE RADIO AND RECEIVER ASSEMBLY WITH BRACKET (See «REMOVAL»(ref-283015-S03132760252008041400000) )
4. REMOVE CENTER CLUSTER INTEGRATION SWITCH Remove the 2 bolts. Release the 6 clips. Disconnect the connector and remove center cluster integration switch.

Scheme 237

Scheme 238

Scheme 239

Scheme 240

Scheme 241

1. REMOVE HEATER CONTROL BASE BRACKET LH Remove the 2 bolts and heater control base bracket LH.
2. REMOVE HEATER CONTROL BASE BRACKET RH Remove the 2 bolts and heater control base bracket RH.
3. REMOVE HEATER CONTROL HOUSING SUB-ASSEMBLY Remove the 4 screws and heater control housing sub-assembly.
4. REMOVE MULTI INFORMATION DISPLAY SUB-ASSEMBLY Release the lock of the connector and disconnect the cable. Remove the 2 screws and multi information display sub-assembly.

Scheme 242

1. INSTALL MULTI INFORMATION DISPLAY SUB-ASSEMBLY Install the multi information display sub-assembly with the 2 screws. Install the cable with the connector.
2. INSTALL HEATER CONTROL HOUSING SUB-ASSEMBLY Install the heater control housing sub-assembly with the 4 screws.
3. INSTALL HEATER CONTROL BASE BRACKET RH Install the heater control base bracket RH with the 2 bolts.
4. INSTALL HEATER CONTROL BASE BRACKET LH Install the heater control base bracket LH with the 2 bolts.

Scheme 243

1. INSTALL CENTER CLUSTER INTEGRATION SWITCH Install the connector. Install the center cluster integration switch with the 2 bolts.
2. INSTALL RADIO AND RECEIVER ASSEMBLY WITH BRACKET (See «INSTALLATION»(ref-283015-S06499123572008041400000) )
3. INSTALL INSTRUMENT PANEL FINISH PANEL LOWER (See «INSTALLATION»(ref-282983-S36897133672008041400000) )
4. INSTALL CONSOLE PANEL UPPER FRONT (See «INSTALLATION»(ref-282983-S36897133672008041400000) )

Scheme 244

Scheme 245

1. REMOVE CABLE FROM NEGATIVE BATTERY TERMINAL
2. REMOVE FRONT DOOR SCUFF PLATE RH
3. REMOVE COWL SIDE TRIM RH SUB-ASSEMBLY
4. REMOVE INSTRUMENT PANEL UNDER COVER NO.2 SUB-ASSEMBLY (See «REMOVAL»(ref-282983-S14613677712008041400000) )
5. REMOVE GLOVE COMPARTMENT DOOR ASSEMBLY (See «REMOVAL»(ref-282983-S14613677712008041400000) )
6. REMOVE HYBRID VEHICLE CONTROL ECU (See «REMOVAL»(ref-282981-S18984371632008041400000) )
7. REMOVE AIR CONDITIONER AMPLIFIER ASSEMBLY Disconnect the connectors. Remove the 2 nuts and air conditioner amplifier assembly.