Air Conditioning: Diagnosis Lexus LS IV

HOW TO PROCEED WITH TROUBLESHOOTING

HINT

1. Use these procedures to troubleshoot the air conditioning system.
2. *: Use the Techstream.

1. VEHICLE BROUGHT TO WORKSHOP
2. INSPECT BATTERY VOLTAGE Standard voltage: 11 to 14 V If the voltage is below 11 V, recharge or replace the battery before proceeding.
3. INSPECT ELECTRIC POWER CONTROL SYSTEM* Using the Techstream, check the electric power control system's load control history (See «OPERATION CHECK»(ref-349751-S29657962842009120800000) ). CHECK COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM* Use the Techstream to check if the LIN communication system is functioning normally. Result RESULT CHART Result Proceed to LIN DTC is not output A LIN DTC is output B B: GO TO LIN COMMUNICATION SYSTEM (See «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-349747-S33852239962009120800000) ) A: Go to Next Step CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM* Use the Techstream 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-349742-S27214063842009120800000) ) A: Go to Next Step CHECK FOR DTC* Check for DTCs and note any codes that are output. Delete the DTC. Recheck for DTCs. Based on the DTCs output above, try to force output of the A/C system DTC by simulating the operation indicated by the DTC. Result RESULT CHART Result Proceed to DTC is not output A DTC is output B B: GO TO DTC CHART (See «DIAGNOSTIC TROUBLE CODE CHART»(ref-349723-S35097051462009120800000) ) A: Go to Next Step PROBLEM SYMPTOMS TABLE Refer to the problem symptoms table (see «PROBLEM SYMPTOMS TABLE»(ref-349723-S39777318562009120800000) ). Result RESULT CHART Result Proceed to Fault is not listed in problem symptoms table A Fault is listed in problem symptoms table B B: GO TO STEP g A: Go to Next Step OVERALL ANALYSIS AND TROUBLESHOOTING* Actuator Check (see «ACTUATOR CHECK»(ref-349723-S11484875882009120800000) ) DATA LIST/ACTIVE TEST (see «DATA LIST/ACTIVE TEST»(ref-349723-S05772573612009120800000) ) Terminals of ECU (see «TERMINALS OF ECU»(ref-349723-S16960025562009120800000) ) On-vehicle Inspection Inspection ADJUST, REPAIR OR REPLACE NEXT: END

PROBLEM SYMPTOMS TABLE

1. Use the table below to help determine the cause of the problem symptom. The potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
2. The electrical equipment operation may be limited by the load control of electric power control system. Follow the «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-349723-S38156422852009120800000) procedures.

Air conditioning system

AIR CONDITIONING SYSTEM CHART

Rear cooler unit

REAR COOLER UNIT REFERENCE CHART

Scheme 249

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Scheme 262

Scheme 263

1. CHECK AIR CONDITIONING AMPLIFIER Measure the voltage and resistance according to the value(s) in the table below. HINT: Check from the rear of the connector while it is connected to the air conditioning amplifier. TERMINAL DESCRIPTION CHART Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition L76-5 (IG+) - L76-1 (GND) V - W-B Ignition power supply Engine switch on (IG) 11 to 14 V Engine switch off Below 1 V L76-6 (+B1) - L76-1 (GND) L - W-B Battery power source Always 11 to 14 V L76-7 (+B2) - L76-1 (GND) L - W-B Battery power source Always 11 to 14 V L76-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 ohms L76-2 (FGND) - Body ground W-B - Body ground Ground Always Below 1 ohms L77-6 (RGND) - Body ground W-B - Body ground Ground Always Below 1 ohms L76-4 (SOL+) - L76-1 (GND) P - W-B A/C compressor operation signal Engine idling Blower switch LO A/C switch ON Pulse generation (see b waveform 1) L76-3 (BLW) - L76-1 (GND) W - W-B Blower motor control signal Engine switch on (IG) Blower switch LO Pulse generation (see c waveform 2) L77-22 (TFAR) - L77-11 (SG-3) R - L Duct sensor signal (for Passenger side) Engine switch on (IG) Passenger side duct sensor temperature: 25°C (77°F) 1.8 to 2.2 V Engine switch on (IG) Passenger side duct sensor temperature: 50°C (122°F) 0.8 to 1.2 V L77-21 (TFAL) - L77-12 (SG-2) G - Y Duct sensor signal (for Driver side) Engine switch on (IG) Passenger side duct sensor temperature: 25°C (77°F) 1.8 to 2.2 V Engine switch on (IG) Passenger side duct sensor temperature: 50°C (122°F) 0.8 to 1.2 V L77-7 (TSD) - L76-1 (GND) SB - W-B Driver side solar sensor signal Engine switch on (IG) Solar sensor subjected to electric light 0.8 to 4.3 V L77-8 (TSP) - L76-1 (GND) V - W-B Passenger side solar sensor signal Engine switch on (IG) Solar sensor subjected to electric light 0.8 to 4.3 V L77-9 (TR) - L77-32 (SG-1) Y - L Room temperature sensor signal (for Front) Engine switch on (IG) Front side interior temperature: 25°C (77°F) 1.8 to 2.2 V L77-32 (SG-1) - Body ground L - Body ground Ground for room temperature sensor (for Front) Always Below 1 ohms L77-3 (CANH) - L76-1 (GND) R - W-B Hi-level CAN bus line Engine switch on (IG) Pulse generation (see d waveform 3) L77-4 (CANL) - L76-1 (GND) G - W-B Lo-level CAN bus line Engine switch on (IG) Pulse generation (see e waveform 4) L76-27 (PTC1) - Body ground W - Body ground PTC1 heater relay operation signal Engine idling Set temperature: MAX HOT Engine coolant temperature: Below 65°C (149°F) Ambient temperature: Below 10°C (50°F) Blower switch OFF --> LO Below 1 V --> 11 to 14 V L76-26 (PTC2) - Body ground G - Body ground PTC2 heater relay operation signal Engine idling Set temperature: MAX HOT Engine coolant temperature: Below 65°C (149°F) Ambient temperature: Below 10°C (50°F) Blower switch OFF --> LO Below 1 V --> 11 to 14 V L76-35 (PTC3) - Body ground L - Body ground PTC3 heater relay operation signal Engine idling Set temperature: MAX HOT Engine coolant temperature: Below 65°C (149°F) Ambient temperature: Below 10°C (50°F) Blower switch OFF --> LO Below 1 V --> 11 to 14 V z1-12 (BUS) - z1-11 (BUSG) - BUS IC control signal (for Front) Engine switch on (IG) Pulse generation z1-13 (BBUS) - z1-11 (BUSG) - Power supply for BUS IC (for Front) Engine switch on (IG) 11 to 14 V z1-11 (BUSG) - Body ground - Ground for BUS IC (for Front) Always Below 1 ohms z1-2 (BUS) - z1-1 (BUSG) - BUS IC control signal (for Front) Engine switch on (IG) Pulse generation z1-3 (BBUS) - z1-1 (BUSG) - Power supply for BUS IC (for Front) Engine switch on (IG) 11 to 14 V z1-1 (BUSG) - Body ground - Ground for BUS IC (for Front) Always Below 1 ohms z1-9 (BUS) - z1-8 (BUSG) - BUS IC control signal (for Front) Engine switch on (IG) Pulse generation z1-10 (BBUS) - z1-8 (BUSG) - Power supply for BUS IC (for Front) Engine switch on (IG) 11 to 14 V z1-8 (BUSG) - Body ground - Ground for BUS IC (for Front) Always Below 1 ohms z1-6 (SG) - Body ground - Ground for evaporator temperature sensor Always Below 1 ohms Z1-7 (TE) - z1-6 (SG) - Evaporator temperature sensor signal Engine switch on (IG) Evaporator temperature: 15°C (59°F) 1.4 to 1.8 V L76-28 (LIN1) - L76-1 (GND) R - W-B LIN communication signal (for Infrared ray sensor) Engine switch on (IG) Pulse generation L76-21 (LIN3) - L76-1 (GND) R - W-B LIN communication signal (for Rear A/C switch) Engine switch on (IG) Pulse generation L76-17 (SBLW) - L76-1 (GND) G - W-B Blower motor control signal (for Rear) Engine switch on (IG) Blower switch LO Pulse generation (see f waveform 5) L76-13 (BURR) - L76-12 (BRRG) R - G BUS IC control signal (for Rear) Engine switch on (IG) Pulse generation L76-14 (BRRB) - L76-12 (BRRG) L - G Power supply for BUS IC (for Rear) Engine switch on (IG) 11 to 14 V L76-12 (BRRG) - Body ground G - Body ground Ground for BUS IC (for Rear) Always Below 1 ohms If the result is not as specified, there may be a malfunction on the wire harness side. Using an oscilloscope, check waveform 1. Compressor and pulley operation signal COMPRESSOR AND PULLEY OPERATION SIGNAL CHART Item Content Terminal No. (Symbols) L76-4 (SOL+) - L76-1 (GND) Tool Setting 5 V/DIV., 500 μsec./DIV. Condition Engine idling, Blower switch LO, A/C switch ON Using an oscilloscope, check waveform 2. Blower motor control signal BLOWER MOTOR CONTROL SIGNAL CHART Item Content Terminal No. (Symbols) L76-3 (BLW) - L76-1 (GND) Tool Setting 1 V/DIV., 500 μsec./DIV. Condition Engine switch on (IG), Blower switch LO HINT: When the blower level is increased, the duty ratio changes accordingly. Using an oscilloscope, check waveform 3. CAN communication signal CAN COMMUNICATION SIGNAL CHART Item Content Terminal No. (Symbols) L77-3 (CANH) - L76-1 (GND) Tool Setting 1 V/DIV., 10 μsec./DIV. Condition Engine switch on (IG) HINT: The waveform varies depending on the CAN communication signal. Using an oscilloscope, check waveform 4. CAN communication signal CAN COMMUNICATION SIGNAL CHART Item Content Terminal No. (Symbols) L77-4 (CANL) - L76-1 (GND) Tool Setting 1 V/DIV., 10 μsec./DIV. Condition Engine switch on (IG) HINT: The waveform varies depending on the CAN communication signal. Using an oscilloscope, check waveform 5. Rear blower motor control signal REAR BLOWER MOTOR CONTROL SIGNAL CHART Item Content Terminal No. (Symbols) L76-17 (SBLW) - L76-1 (GND) Tool Setting 1 V/DIV., 500 μsec./DIV. Condition Engine switch on (IG), Blower switch LO HINT: When the rear blower level is increased, the duty ratio changes accordingly.
2. CHECK FRONT LIGHT ECU (FRONT CONTROLLER) Measure the voltage and resistance according to the value(s) in the table below. HINT: Check from the rear of the connector while it is connected to the front light ECU (Front controller). TERMINAL DESCRIPTION CHART Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition B14-13 (PRS) - B14-14 (SG) W - B Air conditioning pressure sensor signal Refrigerant pressure: Normal 0.73 to 4.48 V Air conditioning pressure sensor signal Refrigerant pressure: Abnormal (less than 0.196 MPa [2.0 kgf/cm 2 , 28 psi]) Below 0.73 V Air conditioning pressure sensor signal Refrigerant pressure: Abnormal (more than 3.14 MPa [32 kgf/cm 2 , 455 psi]) 4.48 V or higher B14-12 (S5) - A50-2 (E) SB - W-B Power supply for pressure sensor Engine switch on (IG) 4.75 to 5.25 V B14-14 (SG) - Body ground B - Body ground Ground for pressure sensor Always Below 1 ohms B14-20 (TM) - B14-19 (TME) BR - G Ambient temperature sensor signal Engine switch on (IG) Ambient temperature: 25°C (77°F) 1.8 to 2.2 V Engine switch on (IG) Ambient temperature: 40°C (105°F) 1.2 to 1.6 V B14-9 (DGSE) - B14-11 (DGS) V - R Exhaust gas sensor signal (CO, HC) After 30 seconds from engine switch on (IG) and the sensor is exposed to the exhaust gas 1.0 to 4.5 V B14-9 (DGSE) - B14-10 (DGS1) V - BE Exhaust gas sensor signal (Nox) After 30 seconds from engine switch on (IG) and the sensor is exposed to the exhaust gas 1.0 to 4.5 V A52-1 (BATB) - A50-2 (E) P - W-B Power source Always 11 to 14 V A52-5 (ALTB) - A50-2 (E) L - W-B Power source Always 11 to 14 V A50-1 (FMB3) - A50-2 (E) LG - W-B Power source Always 11 to 14 V A50-2 (E) - Body ground W-B - Body ground Ground Always Below 1 ohms A50-5 (FMIG) - A50-2 (E) Y - W-B Power source Engine switch on (IG) 11 to 14 V Engine switch off Below 1 V A51-12 (RDEF) - A50-2 (E) W - W-B Rear defogger switch signal Engine switch on (IG) Rear defogger switch OFF 11 to 14 V Engine switch on (IG) Rear defogger switch ON Below 1 V A51-13 (FDEF) - A50-2 (E) L - W-B Window deicer switch signal Engine switch on (IG) Window deicer switch OFF 11 to 14 V Engine switch on (IG) Window deicer switch ON Below 1 V If the result is not as specified, there may be a malfunction on the wire harness side.
3. CHECK MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK) Disconnect the DA, L12 and L13 ECU connectors. Measure the resistance and voltage according to value(s) in the table below. TERMINAL DESCRIPTION CHART Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition DA-40 (GND2) - Body ground W-B - Body ground Ground Always Below 1 ohms DA-41 (GND2) - Body ground W-B - Body ground Ground Always Below 1 ohms L12-1 (AM2) - DA-40 (GND2) W - W-B Battery power supply Always 11 to 14 V L13-6 (AM1) - DA-40 (GND2) W - W-B Battery power supply Always 11 to 14 V If the result is not as specified, there may be a malfunction on the wire harness side.
4. CHECK LUGGAGE ROOM JUNCTION BLOCK (REAR JUNCTION BLOCK ECU) Measure the voltage and resistance according to the value(s) in the table below. HINT: Check from the rear of the connector while it is connected to the rear junction block ECU. TERMINAL DESCRIPTION CHART Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition S62-18 (TSD) - S62-26 (TSB) L - B Rear solar sensor signal Engine switch on (IG) 0.8 to 4.3 V Rear solar sensor subjected to electric light S62-7 (SMOK) - LA-43 (PGND) B - W-B Smoke sensor operation signal Engine switch on (IG) Rear A/C switch to AUTO Apply cigarette smoke 4.0 V or higher Engine switch on (IG) Rear A/C switch to AUTO No cigarette smoke Below 1 V S62-5 (RMGV) - LA-43 (PGND) L - W-B Rear magnetic valve operation voltage Engine switch on (IG) Rear A/C switch ON Below 1 V Engine switch on (IG) Rear A/C switch OFF 11 to 14 V If the result is not as specified, there may be a malfunction on the wire harness side.
5. CHECK REAR DOOR ECU LH Measure the voltage and resistance according to the value(s) in the table below. HINT: Check from the rear of the connector while it is connected to the rear door ECU LH. TERMINAL DESCRIPTION CHART Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition O15-13 (TRAD) - O15-26 (TRE) V - Y Rear room temperature sensor signal LH Engine switch on (IG) Rear LH side interior temperature: 25°C (77°F) 1.8 to 2.2 V O14-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 ohms O14-6 (BDR) - O14-1 (GND) L - W-B Battery power supply Always 11 to 14 V O14-11 (CPUB) - O14-1 (GND) R - W-B Battery power supply Always 11 to 14 V If the result is not as specified, there may be a malfunction on the wire harness side.
6. CHECK REAR DOOR ECU RH Measure the voltage and resistance according to the value(s) in the table below. HINT: Check from the rear of the connector while it is connected to the rear door ECU RH. TERMINAL DESCRIPTION CHART Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition O2-13 (TRAD) - O2-26 (TRE) V - Y Rear room temperature sensor signal RH Engine switch on (IG) Rear RH side interior temperature: 25°C (77°F) 1.8 to 2.2 V O3-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 ohms O3-6 (BDR) - O3-1 (GND) L - W-B Battery power supply Always 11 to 14 V O3-11 (CPUB) - O3-1 (GND) R - W-B Battery power supply Always 11 to 14 V If the result is not as specified, there may be a malfunction on the wire harness side.
7. CHECK MULTI-DISPLAY Disconnect the L59 multi-display connector. Measure the voltage and resistance according to the value(s) in the table below. TERMINAL DESCRIPTION CHART Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition L59-1 (+B1) - L59-10 (GND1) R - W-B Battery power source Always 11 to 14 V L59-3 (IG) - L59-10 (GND1) V - W-B Ignition power supply Engine switch on (IG) 11 to 14 V Engine switch off Below 1 V L59-10 (GND1) - Body ground W-B - Body ground Ground Always Below 1 ohms If the result is not as specified, there may be a malfunction on the wire harness side.
8. CHECK INTEGRATION CONTROL AND PANEL (w/o Multi-display) Disconnect the L35 integration control and panel connector. Measure the voltage and resistance according to the value(s) in the table below. TERMINAL DESCRIPTION CHART Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition L35-1 (+B1) - L35-10 (GND1) B - W-B Battery power source Always 11 to 14 V L35-3 (IG) - L35-10 (GND1) V - W-B Ignition power supply Engine switch on (IG) 11 to 14 V Engine switch off Below 1 V L35-10 (GND1) - Body ground W-B - Body ground Ground Always Below 1 ohms If the result is not as specified, there may be a malfunction on the wire harness side.
9. CHECK REAR POWER SEAT MODULE (w/o Ottoman) Disconnect the r2 rear power seat module connector. Measure the voltage and resistance according to the value(s) in the table below. TERMINAL DESCRIPTION CHART Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition r2-3 (E) - Body ground W-B - Body ground Ground Always Below 1 ohms r2-11 (B) - r2-3 (E) R - W-B Battery Always 11 to 14 V If the result is not as specified, there may be a malfunction on the wire harness side.
10. CHECK REAR POWER SEAT MODULE (w/ Ottoman) Disconnect the S15 rear power seat module connector. Measure the voltage and resistance according to the value(s) in the table below. TERMINAL DESCRIPTION CHART Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition S15-5 (E) - Body ground W-B - Body ground Ground Always Below 1 ohms S15-6 (B) - S15-5 (E) R - W-B Battery Always 11 to 14 V If the result is not as specified, there may be a malfunction on the wire harness side.
11. CHECK ELECTRIC POWER CONTROL ECU Disconnect the PA and A69 electric power control ECU connectors. Measure the voltage and resistance according to the value(s) in the table below. TERMINAL DESCRIPTION CHART Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition A69-18 (VB+) - Body ground BE - Body ground Battery power source Always 11 to 14 V PA-39 (GND) - Body ground W-B - Body ground Ground Always Below 1 ohms Reconnect the PA and A69 electric power control ECU connectors. Measure the voltage according to the value(s) in the table below. TERMINAL DESCRIPTION CHART Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition PK-1 (IG) - PA-39 (GND) G - W-B Ignition power supply Engine switch off Below 1 V Engine switch on (ACC) 11 to 14 V If the result is not as specified, there may be a malfunction on the wire harness side.

Scheme 264

Scheme 265

1. CHECK DTC Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical/(desired system)/Trouble Codes / Read the DTCs.
2. CLEAR DTC Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical/(desired system)/Trouble Codes / Erase the DTCs.
3. INDICATOR CHECK Press and hold the A/C control AUTO switch and Recirculation/Fresh switch simultaneously, and turn the engine switch on (IG). Continue holding the 2 switches until the panel diagnosis mode begins. Check that all indicators turn on and off 4 times in succession at 1 second intervals. HINT: After the indicator check is completed, the system enters the DTC mode automatically. Press the "OFF" switch to cancel the indicator check.

Scheme 266

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.

DATA LIST/ACTIVE TEST

1. DATA LIST HINT: Using the Techstream to read the Data List allows the values or states of switches, sensor, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may by discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time. NOTE: In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not. Warm up the engine. Turn the engine switch off. Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical/(desired menu)/Data List / According to the display on the Techstream, read the "Data List". Air Conditioner AIR CONDITIONER REFERENCE CHART Tester Display Measurement Item/Range Normal Condition Diagnostic Note Room Temperature Sensor Room temperature sensor / Min.: -6.5°C (20.3°F) Max.: 57.25°C (135.05°F) Actual room temperature for front seat is displayed Open in circuit: -6.5°C (20.3°F) Short in circuit: 57.25°C (135.05°F) Ambient Temp 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) 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) Evaporator Target Temp Target evaporator temperature Min=-327.68°C (-557.8°F) Max=327.67°C (621.8°F) Target evaporator temperature is displayed - Solar Sensor (D Side) Driver side solar sensor / Min.: 0, Max.: 255 Driver side solar sensor voltage increases as brightness increases Open in circuit: 0 Short in circuit: 255 Solar Sensor (P Side) Passenger side solar sensor / Min.: 0, Max.: 255 Passenger side solar sensor voltage increases as brightness increases Open in circuit: 0 Short in circuit: 255 Engine 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 engine is warmed up - Duct Sensor (D Side) Duct sensor (for driver side) / Min.: -12.7°C (9.14°F) Max.: 76.55°C (169.79°F) Actual duct temperature is displayed (for driver side) - Duct Sensor (P Side) Duct sensor (for passenger side) / Min.: -12.7°C (9.14°F) Max.: 76.55°C (169.79°F) Actual duct temperature is displayed (for passenger side) - Set Temperature (D Side) Driver side set temperature / Min.: MAX COLD (0°C (32°F)) Max.: MAX HOT (30°C (86°F)) Driver side actual set temperature is displayed - Set Temperature (P Side) Passenger side set temperature / Min.: MAX COLD (0°C (32°F)) Max.: MAX HOT (30°C (86°F)) Passenger side actual set temperature is displayed - Hand Free Telephone Handsfree telephone/OFF or ON ON: Handsfree telephone is used OFF: Handsfree telephone is not used - Blower Motor Speed Level Blower motor speed level / Min.: 0 level, Max.: 31 level Increases in range between 0 and 31 as blower motor speed increases - Adjusted Ambient Temp Adjusted ambient temperature / Min.: -30.8°C (-23.44°F) Max.: 50.8°C (123.44°F) Adjusted ambient temperature is displayed - Emission Gas Sensor Emission gas sensor / Min.: 0, Max.: 255 Increases as the gas amount increases - Air Inlet Damper Targ Pulse Air inlet damper target pulse / Min.: 0, Max.: 255 Customized value will be displayed - Cool Air Bypass Pulse Driver side cool air bypass servo motor target pulse / Min.: 0, Max.: 255 Customized value will be displayed - Rear Solar Sensor Rear solar sensor / Min.: 0, Max.: 255 Rear solar sensor voltage increases as brightness increases Open in circuit: 0 Short in circuit: 255 Emission Gas Nox Sensor Emission gas NOx sensor / Min.: 0, Max.: 255 Increases as gas amount increases - Regulator Pressure Sensor Refrigerant pressure sensor / Min.: 0 kgf/cm 2 G Max.: 38.25 kgf/cm 2 G Actual refrigerant pressure is displayed - Regulator Control Current Refrigerant control current / Min.: 0 A Max.: 0.997 A Value changes between 0 A and 0.997 A in accordance with compressor and magnetic clutch operation - Room Temp Sensor (Rear) Rear room temperature sensor (for LH seat) / Min.: -6.5°C (20.3°F) Max.: 57.25°C (135.05°F) Actual rear room temperature for LH seat is displayed Open circuit: -6.5°C (20.3°F) Short circuit: 57.25°C (135.05°F) Blower Motor Level (Rear) Rear blower motor speed level / Min.; 0, Max.: 31 Increases in range between 0 to 31 as rear blower motor speed increases - HOT A/M Servo Targ Pls (D) Driver side HOT air mix servo motor target pulse / Min.: 0, Max.: 255 Customized value will be displayed - COOL A/M Servo Targ Pls (D) Driver side COOL air mix servo motor target pulse / Min.: 0, Max.: 255 Customized value will be displayed - HOT A/M Servo Targ Pls (P) Passenger side HOT air mix servo motor target pulse / Min.: 0, Max.: 255 Customized value will be displayed - COOL A/M Servo Targ Pls (P) Passenger side COOL air mix servo motor target pulse / Min.: 0, Max.: 255 Customized value will be displayed - A/O Damper FACE Pos (D) Driver side FACE air outlet servo motor target pulse / Min.: 0, Max.: 255 Customized value will be displayed - A/O Damper FOOT/DEF Pos (D) Driver side FOOT/DEF air outlet servo motor target pulse / Min.: 0, Max.: 255 Customized value will be displayed - A/O Damper FACE Pos (P) Passenger side FACE air outlet servo motor target pulse / Min.: 0, Max.: 255 Customized value will be displayed - A/O Damper FOOT/DEF Pos (P) Passenger side FOOT/DEF air outlet servo motor target pulse / Min.: 0, Max.: 255 Customized value will be displayed - M/H Bypass HOT Targ Pis Max hot bypass servo motor HOT target pulse / Min.: 0, Max.: 255 Customized value will be displayed - M/H Bypass COOL Targ Pis Max hot bypass servo motor COOL target pulse / Min.: 0, Max.: 255 Customized value will be displayed - Air Mix Servo Targ Pls (F&R D) Driver side front A/C rear air flow air mix servo motor target pulse / Min.: 0, Max.: 255 Customized value will be displayed - Air Mix Servo Targ Pls (F&R P) Passenger side front A/C rear air flow air mix servo motor target pulse / Min.: 0, Max.: 255 Customized value will be displayed - Air Outlet Servo Pis (F&R D) Driver side front A/C rear air flow air outlet target pulse / Min.: 0, Max.: 255 Customized value will be displayed - Air Outlet Servo Pls (F&R P) Passenger side front A/C rear air flow air outlet target pulse / Min.: 0, Max.: 255 Customized value will be displayed - Air Outlet Servo Pulse (R) Rear air outlet servo motor target pulse (for LH side)/ Min.: 0, Max.: 255 Customized value will be displayed - Air Outlet Servo Pulse (RP) Rear air outlet servo motor target pulse (for RH side)/ Min.: 0, Max.: 255 Customized value will be displayed - COOL Bypass Target Pulse (P) Passenger side COOL air bypass servo motor target pulse / Min.: 0, Max.: 255 Customized value will be displayed - Emission Target Pulse (R) Rear exhaust mode servo motor target pulse (for emission) / Min.: 0, Max.: 255 Customized value will be displayed - Diffuse Target Pulse (R) Rear exhaust mode servo motor target pulse (for diffusion) / Min.: 0, Max.: 255 Customized value will be displayed - Room Temperature Sensor (RP) Rear room temperature sensor (for RH seat) / Min.: -6.5°C (20.3°F) Max.: 57.25°C (135.05°F) Actual rear room temperature for RH seat is displayed Open circuit: -6.5°C (20.3°F) Short circuit: 57.25°C (135.05°F) Set Temperature (Rear D side) Rear driver side set temperature / Min.: MAX COLD (0°C (32°F)) Max.: MAX HOT (30°C (86°F)) Rear driver side actual set temperature is displayed - Set Temperature (Rear P side) Rear passenger side set temperature / Min.: MAX COLD (0°C (32°F)) Max.: MAX HOT (30°C (86°F)) Rear passenger side actual set temperature is displayed - Pls Servo Test Sts Pulse servo motor test status/00, 01, 02 Customized value will be displayed - Shift Set Temperature Shift set temperature/+2 C, +1 C, NORMAL, -1 C, -2 C 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 - Compressor/DEF Mode Compressor/DEF mode/LINK, NORMAL Customized value will be displayed - Evaporator Control Evaporator control/AUTO, MANUAL Customized value will be displayed - Emission Gas Sensor Shift Emission gas sensor shift/MU MORE, MORE, LI MORE, NORMAL, LI LESS, LESS, MU LESS Customized value will be displayed - Button Press Buzzer Button press buzzer/ON, OFF Customized value will be displayed - Foot/DEF Auto Mode FOOT/DEF auto mode/ON, OFF Customized value will be displayed - Foot/DEF Auto Blow Up FOOT/DEF auto blower up function/ON, OFF Customized value will be displayed - Rear A/P HI Set Rear A/P HI Set auto mode/ON, OFF Customized value will be displayed - Filter Sensor Filter sensor/ LESS, NORMAL, MORE Customized value will be displayed - Ambient Temperature Shift Ambient temperature shift/+3 C, +2 C, +1 C, NORMAL, -1 C, -2 C, -3C Customized value will be displayed - Destination Destination/DOMEST, USA, EUROPE, AUSTRAL, MIDEAST, NO INFO Changes value with destinations - Number of Trouble Codes Number of trouble codes / Min.: 0, Max.: 255 Number of DTCs will be displayed - Engine ENGINE REFERENCE CHART Tester Display Measurement Item/Range Normal Condition Diagnostic Note A/C Signal A/C signal/ON or OFF ON: A/C ON OFF: A/C OFF
2. ACTIVE TEST HINT: Using the Techstream to Perform the Active Tests allows relays, VSVs and actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests. Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical/Air Conditioner/Active Test / According to the display on the Techstream, perform the "Active Test". Air Conditioner AIR CONDITIONER REFERENCE CHART Tester Display Test Part Control Range Diagnostic Note Blower Motor Blower motor Min.: 0, Max.: 31 - Magnetic Clutch Relay A/C magnetic clutch relay OFF, ON - Defogger Relay (Rear) Defogger relay (Rear) OFF, ON - Mirror Heater Relay Mirror heater relay OFF, ON - Deicer Relay (Front) Deicer relay (Front) OFF, ON - Heater Active Level Heater active level Min.: 0, Max.: 3 - Rear A/C Mag Valv Rear A/C magnetic valve OFF, ON - Air Inlet Damper Targ Pulse Air inlet damper target pulse Min.: 0, Max.: 255 - Cool Air Bypass Pulse Driver side cool air bypass pulse Min.: 0, Max.: 255 - Hot A/M Servo Pulse (D) HOT Air mix servo motor pulse (D side) Min.: 0, Max.: 255 - Cool A/M Servo Pulse (D) COOL Air mix servo motor pulse (D side) Min.: 0, Max.: 255 - Hot A/M Servo Pulse (P) HOT Air mix servo motor pulse (P side) Min.: 0, Max.: 255 - Cool A/M Servo Pulse (P) COOL Air mix servo motor pulse (P side) Min.: 0, Max.: 255 - Face A/O Servo Pulse (D) FACE Air outlet servo motor pulse (D side) Min.: 0, Max.: 255 - Foot A/O Servo Pulse (D) FOOT Air outlet servo motor pulse (D side) Min.: 0, Max.: 255 - Face A/O Servo Pulse (P) FACE Air outlet servo motor pulse (P side) Min.: 0, Max.: 255 - Foot A/O Servo Pulse (P) FOOT Air outlet servo motor pulse (P side) Min.: 0, Max.: 255 - M/H Bypass Hot Servo Pls M/H bypass HOT servo motor pulse Min.: 0, Max.: 255 - M/H Bypass Cool Servo Pls M/H bypass COOL servo motor pulse Min.: 0, Max.: 255 - A/M Servo Pulse (F&R D) Air mix servo motor pulse (Front A/C rear air flow D side) Min.: 0, Max.: 255 - A/M Servo Pulse (F&R P) Air mix servo motor pulse (Front A/C rear air flow P side) Min.: 0, Max.: 255 - A/O Servo Pulse (F&R D) Air outlet servo motor pulse (Front A/C rear air flow D side) Min.: 0, Max.: 255 - A/O Servo Pulse (F&R P) Air outlet servo motor pulse (Front A/C rear air flow P side) Min.: 0, Max.: 255 - A/O Servo Pulse (Rr D) Air outlet servo motor pulse (Rr D side) Min.: 0, Max.: 255 - A/O Servo Pulse (Rr P) Air outlet servo motor pulse (Rr P side) Min.: 0, Max.: 255 - Cool Air Bypass Pls (P) Cool air bypass pulse (P side) Min.: 0, Max.: 255 - Emission Pulse (R) Emission pulse (Rear) Min.: 0, Max.: 255 - Diffuse Pulse (R) Diffuse pulse (Rear) Min.: 0, Max.: 255 - Rear Blower Motor Rear blower motor Min.: 0, Max.: 31

DIAGNOSTIC TROUBLE CODE CHART

HINT

If a trouble code is displayed during the DTC check, inspect the trouble areas listed for that code. For details of the code, refer to the "DTC Code" below.

Air conditioning amplifier

AIR CONDITIONING AMPLIFIER REFERENCE CHART

Scheme 267

1. ACTUATOR CHECK Turn the engine switch on (IG) while pressing the A/ C control AUTO switch and Recirculation/Fresh switch simultaneously. Press the Recirculation/Fresh switch. As each damper, motor and relay automatically operate the actuator check at 1 second intervals from step No. 1 to No. 10 continuously, check the temperature and airflow visually and by hand. HINT: If a slower display is desired, press the driver temperature up switch and change the display in the step operation. Each time the driver temperature up switch is pressed, the display changes by 1 step. The buzzer sounds when the displayed trouble code changes. Codes are displayed from smaller to larger numbers in order. To cancel the check mode, press the "OFF" switch. Front air conditioning unit FRONT AIR CONDITIONING UNIT REFERENCE CHART Step No. Display Code Conditions Blower Level Air Mix Damper HOT Dr. Pa. Air Mix Damper COOL Dr. Pa. Air Mix Damper FrRr Dr. Pa. Airflow Vent Dr. Pa. Airflow Vent FrRr M/H Bypass Damper Air Inlet Damper Cool Air Bypass Damper Dr. Pa. Compressor 1 0 0 0% open 0% open 0% open FACE FACE M/C FRESH -14% OFF 2 1 1 0% open 0% open 0% open FACE FACE M/C FRESH -14% OFF 3 2 17 0% open 0% open 0% open FACE FACE M/C RECIRCULATION/FRESH -14% ON 4 3 17 0% open 0% open 0% open FACE FACE M/C RECIRCULATION 113.5% ON 5 4 17 50% open 50% open 50% open B/L B/L Temperature Control RECIRCULATION 113.5% ON 6 5 17 50% open 50% open 50% open B/L B/L Temperature Control RECIRCULATION 113.5% ON 7 6 17 50% open 50% open 50% open FOOT FOOT Temperature Control FRESH 113.5% ON 8 7 17 100% open 100% open 100% open FOOT-0 FOOT M/H FRESH 113.5% ON 9 8 17 100% open 100% open 100% open F/D FOOT M/H FRESH 113.5% ON 10 9 31 100% open 100% open 100% open DEF FOOT DEF FRESH 113.5% ON Rear cooler unit REAR COOLER UNIT REFERENCE CHART Step No. Display Code Conditions Rear Blower Level Rear Airflow Vent Dr. Pa. Rear Emission Rear Diffusion Rear Magnetic Valve 1 0 0 FACE Close Close OFF 2 1 3 FACE Close Close OFF 3 2 17 FACE Close Close ON 4 3 17 FACE Close Close ON 5 4 17 B/L Close Open OFF 6 5 17 B/L Close Open OFF 7 6 17 FOOT Open Close OFF 8 7 17 FOOT Open Close OFF 9 8 17 FOOT Open Close OFF 10 9 31 FOOT Open Close OFF

INSPECTION PROCEDURE

1. READ VALUE USING TECHSTREAM (HOT AIR MIX SERVO MOTOR TARGET PULSE (for Passenger Side)) Use the Data List to check if the servo motor is functioning properly. Air Conditioner AIR CONDITIONER REFERENCE CHART Tester Display Measurement Item/Range Normal Condition Diagnostic Note HOT A/M Servo Targ PLS (P) Passenger side HOT air mix servo motor target pulse / Min.: 0, Max.: 255 Customized value will be displayed - OK: The display is as specified in the normal condition. Result RESULT CHART Result Proceed to OK (Checking from the DTC) A OK (Checking from the PROBLEM SYMPTOMS TABLE) B NG C B: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See «PROBLEM SYMPTOMS TABLE»(ref-349723-S39777318562009120800000) ) C: REPLACE AIR CONDITIONING AMPLIFIER (See «REMOVAL»(ref-349723-S18821309652009120800000) ) A: Go to Next Step
2. REPLACE AIR MIX SERVO MOTOR (for Passenger Side HOT) HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one and check that the condition returns to normal (see «DISASSEMBLY»(ref-349723-S32545862472009120800000) ). OK: Same problem does not occur. NG: REPLACE AIR CONDITIONING HARNESS (See «DISASSEMBLY»(ref-349723-S32545862472009120800000) ) OK: END

1. READ VALUE USING TECHSTREAM (AIR INLET DAMPER TARGET PULSE) Use the Data List to check if the servo motor is functioning properly. Air Conditioner AIR CONDITIONER REFERENCE CHART Tester Display Measurement Item/Range Normal Condition Diagnostic Note Air Inlet Damper Target Pulse Air inlet damper target pulse / Min.: 0, Max.: 255 Customized value will be displayed - OK: The display is as specified in the normal condition. Result RESULT CHART Result Proceed to OK (Checking from the DTC) A OK (Checking from the PROBLEM SYMPTOMS TABLE) B NG C B: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See «PROBLEM SYMPTOMS TABLE»(ref-349723-S39777318562009120800000) ) C: REPLACE AIR CONDITIONING AMPLIFIER (See «REMOVAL»(ref-349723-S18821309652009120800000) ) A: Go to Next Step
2. REPLACE AIR INLET SERVO MOTOR HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one and check that the condition returns to normal (see «DISASSEMBLY»(ref-349723-S32545862472009120800000) ). OK: Same problem does not occur. NG: REPLACE AIR CONDITIONING HARNESS (See «DISASSEMBLY»(ref-349723-S32545862472009120800000) ) OK: END

1. READ VALUE USING TECHSTREAM (AIR OUTLET SERVO MOTOR TARGET PULSE (for Driver Side FACE)) Use the Data List to check if the servo motor is functioning properly. Air Conditioner AIR CONDITIONER REFERENCE CHART Tester Display Measurement Item/Range Normal Condition Diagnostic Note A/O Damper FACE Pos (D) Driver side FACE air outlet servo motor target pulse / Min.: 0, Max.: 255 Customized value will be displayed - OK: The display is as specified in the normal condition. Result RESULT CHART Result Proceed to OK (Checking from the DTC) A OK (Checking from the PROBLEM SYMPTOMS TABLE) B NG C B: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See «PROBLEM SYMPTOMS TABLE»(ref-349723-S39777318562009120800000) ) C: REPLACE AIR CONDITIONING AMPLIFIER (See «REMOVAL»(ref-349723-S18821309652009120800000) ) A: Go to Next Step
2. REPLACE AIR OUTLET SERVO MOTOR (for Driver Side FACE) HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one and check that the condition returns to normal (see «DISASSEMBLY»(ref-349723-S32545862472009120800000) ). OK: Same problem does not occur. NG: REPLACE AIR CONDITIONING HARNESS (See «DISASSEMBLY»(ref-349723-S32545862472009120800000) ) OK: END

1. READ VALUE USING TECHSTREAM (COOL AIR BYPASS SERVO MOTOR TARGET PULSE (for Driver Side)) Use the Data List to check if the servo motor is functioning properly. Air Conditioner AIR CONDITIONER REFERENCE CHART Tester Display Measurement Item/Range Normal Condition Diagnostic Note Cool Air Bypass Pulse Driver side cool air bypass servo motor target pulse / Min.: 0, Max.: 255 Customized value will be displayed - OK: The display is as specified in the normal condition. Result RESULT CHART Result Proceed to OK (Checking from the DTC) A OK (Checking from the PROBLEM SYMPTOMS TABLE) B NG C B: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See «PROBLEM SYMPTOMS TABLE»(ref-349723-S39777318562009120800000) ) C: REPLACE AIR CONDITIONING AMPLIFIER (See «REMOVAL»(ref-349723-S18821309652009120800000) ) A: Go to Next Step
2. REPLACE COOL AIR BYPASS SERVO MOTOR (for Driver Side) HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one and check that the condition returns to normal (see «DISASSEMBLY»(ref-349723-S32545862472009120800000) ). OK: Same problem does not occur. NG: REPLACE AIR CONDITIONING HARNESS (See «DISASSEMBLY»(ref-349723-S32545862472009120800000) ) OK: END

1. READ VALUE USING TECHSTREAM (COOL AIR BYPASS SERVO MOTOR TARGET PULSE) Use the Data List to check if the servo motor is functioning properly. Air Conditioner AIR CONDITIONER REFERENCE CHART Tester Display Measurement Item/Range Normal Condition Diagnostic Note Cool Bypass Target Pulse (P) Passenger side cool air bypass servo motor target pulse / Min.: 0, Max.: 255 Customized value will be displayed - OK: The display is as specified in the normal condition. Result RESULT CHART Result Proceed to OK (Checking from the DTC) A OK (Checking from the PROBLEM SYMPTOMS TABLE) B NG C B: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See «PROBLEM SYMPTOMS TABLE»(ref-349723-S39777318562009120800000) ) C: REPLACE AIR CONDITIONING AMPLIFIER (See «REMOVAL»(ref-349723-S18821309652009120800000) ) A: Go to Next Step
2. REPLACE COOL AIR BYPASS SERVO MOTOR (for Passenger Side) HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one and check that the condition returns to normal (see «DISASSEMBLY»(ref-349723-S32545862472009120800000) ). OK: Same problem does not occur. NG: REPLACE AIR CONDITIONING HARNESS (See «DISASSEMBLY»(ref-349723-S32545862472009120800000) ) OK: END

1. READ VALUE USING TECHSTREAM (AIR MIX SERVO MOTOR TARGET PULSE (for Driver Side HOT)) Use the Data List to check if the servo motor is functioning properly. Air Conditioner AIR CONDITIONER REFERENCE CHART Tester Display Measurement Item/Range Normal Condition Diagnostic Note HOT A/M Servo Targ Pls (D) Driver side HOT air mix servo motor target pulse / Min.: 0, Max.: 255 Customized value will be displayed - OK: The display is as specified in the normal condition. Result RESULT CHART Result Proceed to OK (Checking from the DTC) A OK (Checking from the PROBLEM SYMPTOMS TABLE) B NG C B: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See «PROBLEM SYMPTOMS TABLE»(ref-349723-S39777318562009120800000) ) C: REPLACE AIR CONDITIONING AMPLIFIER (See «REMOVAL»(ref-349723-S18821309652009120800000) ) A: Go to Next Step
2. REPLACE AIR MIX SERVO MOTOR (for Driver Side HOT) HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one and check that the condition returns to normal (see «DISASSEMBLY»(ref-349723-S32545862472009120800000) ). OK: Same problem does not occur. NG: REPLACE AIR CONDITIONING HARNESS (See «DISASSEMBLY»(ref-349723-S32545862472009120800000) ) OK: END

1. READ VALUE USING TECHSTREAM (AIR OUTLET SERVO MOTOR TARGET PULSE (for P Side FACE)) Use the Data List to check if the servo motor is functioning properly. Air Conditioner AIR CONDITIONER REFERENCE CHART Tester Display Measurement Item/Range Normal Condition Diagnostic Note A/O Damper FACE Pos (P) Passenger side FACE air outlet servo motor target pulse / Min.: 0, Max.: 255 Customized value will be displayed - OK: The display is as specified in the normal condition. Result RESULT CHART Result Proceed to OK (Checking from the DTC) A OK (Checking from the PROBLEM SYMPTOMS TABLE) B NG C B: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See «PROBLEM SYMPTOMS TABLE»(ref-349723-S39777318562009120800000) ) C: REPLACE AIR CONDITIONING AMPLIFIER (See «REMOVAL»(ref-349723-S18821309652009120800000) ) A: Go to Next Step
2. REPLACE AIR OUTLET SERVO MOTOR (for Passenger Side FACE) HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one and check that the condition returns to normal (see «DISASSEMBLY»(ref-349723-S32545862472009120800000) ). OK: Same problem does not occur. NG: REPLACE AIR CONDITIONING HARNESS (See «DISASSEMBLY»(ref-349723-S32545862472009120800000) ) OK: END

Note. If this DTC is output, perform the following procedures before beginning the INSPECTION PROCEDURE. Change the air outlet mode position for the rear LH and RH seats to "FOOT". Turn the engine switch off, and wait approximately 90 seconds. Turn the engine switch on (IG). Clear DTCs (see DTC CHECK/CLEAR ). With the air outlet mode position for the rear LH and RH seats on "FOOT", wait approximately 45 seconds. Check for DTCs (see DTC CHECK/CLEAR ). If this DTC is not output, there is no malfunction. If this DTC is output, perform the INSPECTION PROCEDURE below.

Scheme 268

1. READ VALUE USING TECHSTREAM (REAR AIR OUTLET SERVO MOTOR TARGET PULSE (for LH Side)) Use the Data List to check if the servo motor is functioning properly. Air Conditioner AIR CONDITIONER REFERENCE CHART Tester Display Measurement Item/Range Normal Condition Diagnostic Note Air Outlet Servo Pulse (R) Rear air outlet servo motor target pulse (for LH side)/ Min.: 0, Max.: 255 Customized value will be displayed - OK: The display is as specified in the normal condition. Result RESULT CHART Result Proceed to OK (Checking from the DTC) A OK (Checking from the PROBLEM SYMPTOMS TABLE) B NG C B: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See «PROBLEM SYMPTOMS TABLE»(ref-349723-S39777318562009120800000) ) C: REPLACE AIR CONDITIONING AMPLIFIER (See «REMOVAL»(ref-349723-S18821309652009120800000) ) A: Go to Next Step
2. CHECK HARNESS AND CONNECTOR (REAR AIR CONDITIONING HARNESS - AIR CONDITIONING AMPLIFIER) Disconnect the S28 rear air conditioning harness connector. Disconnect the L76 air conditioning amplifier connector. Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE REFERENCE CHART Tester Connection Condition Specified Condition S28-6 (BRRG) - L76-12 (BRRG) Always Below 1 ohms S28-7 (BURR) - L76-13 (BURR) Always Below 1 ohms S28-8 (BRRB) - L76-14 (BRRB) Always Below 1 ohms L76-12 (BRRG) - Body ground Always 10 kohms or higher L76-13 (BURR) - Body ground Always 10 kohms or higher L76-14 (BRRB) - Body ground Always 10 kohms or higher NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to Next Step
3. REPLACE REAR AIR OUTLET SERVO MOTOR (for LH Side) HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one and check that the condition returns to normal (see «DISASSEMBLY»(ref-349723-S03180860272009120800000) ). OK: Same problem does not occur. NG: REPLACE REAR AIR CONDITIONING HARNESS (See «DISASSEMBLY»(ref-349723-S03180860272009120800000) ) OK: END

1. READ VALUE USING TECHSTREAM (AIR MIX SERVO MOTOR TARGET PULSE (for Driver Side COOL)) Use the Data List to check if the servo motor is functioning properly. Air Conditioner AIR CONDITIONER REFERENCE CHART Tester Display Measurement Item/Range Normal Condition Diagnostic Note COOL A/M Servo Targ Pls (D) Driver side COOL air mix servo motor target pulse / Min.: 0, Max.: 255 Customized value will be displayed - OK: The display is as specified in the normal condition. Result RESULT CHART Result Proceed to OK (Checking from the DTC) A OK (Checking from the PROBLEM SYMPTOMS TABLE) B NG C B: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See «PROBLEM SYMPTOMS TABLE»(ref-349723-S39777318562009120800000) ) C: REPLACE AIR CONDITIONING AMPLIFIER (See «REMOVAL»(ref-349723-S18821309652009120800000) ) A: Go to Next Step
2. REPLACE AIR MIX SERVO MOTOR (for Driver Side COOL) HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one and check that the condition returns to normal (see «DISASSEMBLY»(ref-349723-S32545862472009120800000) ). OK: Same problem does not occur. NG: REPLACE AIR CONDITIONING HARNESS (See «DISASSEMBLY»(ref-349723-S32545862472009120800000) ) OK: END

1. READ VALUE USING TECHSTREAM (AIR MIX SERVO MOTOR TARGET PULSE (for Passenger Side COOL)) Use the Data List to check if the servo motor is functioning properly. Air Conditioner AIR CONDITIONER REFERENCE CHART Tester Display Measurement Item/Range Normal Condition Diagnostic Note COOL A/M Servo Targ Pls (P) Passenger side COOL air mix servo motor target pulse / Min.: 0, Max.: 255 Customized value will be displayed - OK: The display is as specified in the normal condition. Result RESULT CHART Result Proceed to OK (Checking from the DTC) A OK (Checking from the PROBLEM SYMPTOMS TABLE) B NG C B: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See «PROBLEM SYMPTOMS TABLE»(ref-349723-S39777318562009120800000) ) C: REPLACE AIR CONDITIONING AMPLIFIER (See «REMOVAL»(ref-349723-S18821309652009120800000) ) A: Go to Next Step
2. REPLACE AIR MIX SERVO MOTOR (for Passenger Side COOL) HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one and check that the condition returns to normal (see «DISASSEMBLY»(ref-349723-S32545862472009120800000) ). OK: Same problem does not occur. NG: REPLACE AIR CONDITIONING HARNESS (See «DISASSEMBLY»(ref-349723-S32545862472009120800000) ) OK: END

1. READ VALUE USING TECHSTREAM (AIR OUTLET SERVO MOTOR TARGET PULSE (for D Side FOOT/DEF)) Use the Data List to check if the servo motor is functioning properly. Air Conditioner AIR CONDITIONER REFERENCE CHART Tester Display Measurement Item/Range Normal Condition Diagnostic Note A/O Damper FOOT/DEF Pos (D) Driver side FOOT/DEF air outlet servo motor target pulse / Min.: 0, Max.: 255 Customized value will be displayed - OK: The display is as specified in the normal condition. Result RESULT CHART Result Proceed to OK (Checking from the DTC) A OK (Checking from the PROBLEM SYMPTOMS TABLE) B NG C B: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See «PROBLEM SYMPTOMS TABLE»(ref-349723-S39777318562009120800000) ) C: REPLACE AIR CONDITIONING AMPLIFIER (See «REMOVAL»(ref-349723-S18821309652009120800000) ) A: Go to Next Step
2. REPLACE AIR OUTLET SERVO MOTOR (for Driver Side FOOT/DEF) HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one and check that the condition returns to normal (see «DISASSEMBLY»(ref-349723-S32545862472009120800000) ). OK: Same problem does not occur. NG: REPLACE AIR CONDITIONING HARNESS (See «DISASSEMBLY»(ref-349723-S32545862472009120800000) ) OK: END

1. READ VALUE USING TECHSTREAM (AIR OUTLET SERVO MOTOR TARGET PULSE (for P Side FOOT/DEF)) Use the Data List to check if the servo motor is functioning properly. Air Conditioner AIR CONDITIONER REFERENCE CHART Tester Display Measurement Item/Range Normal Condition Diagnostic Note A/O Damper FOOT/DEF Pos (P) Passenger side FOOT/DEF air outlet servo motor target pulse / Min.: 0, Max.: 255 Customized value will be displayed - OK: The display is as specified in the normal condition. Result RESULT CHART Result Proceed to OK (Checking from the DTC) A OK (Checking from the PROBLEM SYMPTOMS TABLE) B NG C B: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See «PROBLEM SYMPTOMS TABLE»(ref-349723-S39777318562009120800000) ) C: REPLACE AIR CONDITIONING AMPLIFIER (See «REMOVAL»(ref-349723-S18821309652009120800000) ) A: Go to Next Step
2. REPLACE AIR OUTLET SERVO MOTOR (for Passenger Side FOOT/DEF) HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one and check that the condition returns to normal (see «DISASSEMBLY»(ref-349723-S32545862472009120800000) ). OK: Same problem does not occur. NG: REPLACE AIR CONDITIONING HARNESS (See «DISASSEMBLY»(ref-349723-S32545862472009120800000) ) OK: END

1. READ VALUE USING TECHSTREAM (AIR MIX SERVO MOTOR (for D Side Front A/C Rear Air Flow)) Use the Data List to check if the servo motor is functioning properly. Air Conditioner AIR CONDITIONER REFERENCE CHART Tester Display Measurement Item/Range Normal Condition Diagnostic Note Air Mix Servo Targ Pls (F&R D) Driver side front A/C rear air flow air mix servo motor target pulse / Min.: 0, Max.: 255 Customized value will be displayed - OK: The display is as specified in the normal condition. Result RESULT CHART Result Proceed to OK (Checking from the DTC) A OK (Checking from the PROBLEM SYMPTOMS TABLE) B NG C B: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See «PROBLEM SYMPTOMS TABLE»(ref-349723-S39777318562009120800000) ) C: REPLACE AIR CONDITIONING AMPLIFIER (See «REMOVAL»(ref-349723-S18821309652009120800000) ) A: Go to Next Step
2. REPLACE AIR MIX SERVO MOTOR (for Driver Side Front A/C Rear Air Flow) HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one and check that the condition returns to normal (see «DISASSEMBLY»(ref-349723-S32545862472009120800000) ). OK: Same problem does not occur. NG: REPLACE AIR CONDITIONING HARNESS (See «DISASSEMBLY»(ref-349723-S32545862472009120800000) ) OK: END

1. READ VALUE USING TECHSTREAM (AIR MIX SERVO MOTOR (for P Side Front A/C Rear Air Flow)) Use the Data List to check if the servo motor is functioning properly. Air Conditioner AIR CONDITIONER REFERENCE CHART Tester Display Measurement Item/Range Normal Condition Diagnostic Note HOT A/M Servo Targ PLS (P) Passenger side front A/C rear air flow air mix servo motor target pulse / Min.: 0, Max.: 255 Customized value will be displayed - OK: The display is as specified in the normal condition. Result RESULT CHART Result Proceed to OK (Checking from the DTC) A OK (Checking from the PROBLEM SYMPTOMS TABLE) B NG C B: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See «PROBLEM SYMPTOMS TABLE»(ref-349723-S39777318562009120800000) ) C: REPLACE AIR CONDITIONING AMPLIFIER (See «REMOVAL»(ref-349723-S18821309652009120800000) ) A: Go to Next Step
2. REPLACE AIR MIX SERVO MOTOR (for Passenger Side Front A/C Rear Air Flow) HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one and check that the condition returns to normal (see «DISASSEMBLY»(ref-349723-S32545862472009120800000) ). OK: Same problem does not occur. NG: REPLACE AIR CONDITIONING HARNESS (See «DISASSEMBLY»(ref-349723-S32545862472009120800000) ) OK: END

1. READ VALUE USING TECHSTREAM (MAX HOT BYPASS DAMPER SERVO MOTOR TARGET PULSE (for HOT)) Use the Data List to check if the servo motor is functioning properly. Air Conditioner AIR CONDITIONER REFERENCE CHART Tester Display Measurement Item/Range Normal Condition Diagnostic Note M/H Bypass HOT Targ Pls Max hot bypass servo motor HOT target pulse / Min.: 0, Max.: 255 Customized value will be displayed - OK: The display is as specified in the normal condition. Result RESULT CHART Result Proceed to OK (Checking from the DTC) A OK (Checking from the PROBLEM SYMPTOMS TABLE) B NG C B: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See «PROBLEM SYMPTOMS TABLE»(ref-349723-S39777318562009120800000) ) C: REPLACE AIR CONDITIONING AMPLIFIER (See «REMOVAL»(ref-349723-S18821309652009120800000) ) A: Go to Next Step
2. REPLACE MAX HOT BYPASS SERVO MOTOR (for HOT) HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one and check that the condition returns to normal (see «DISASSEMBLY»(ref-349723-S32545862472009120800000) ). OK: Same problem does not occur. NG: REPLACE AIR CONDITIONING HARNESS (See «DISASSEMBLY»(ref-349723-S32545862472009120800000) ) OK: END

1. READ VALUE USING TECHSTREAM (AIR OUTLET SERVO MOTOR (for D Side Front A/C Rear Air Flow)) Use the Data List to check if the servo motor is functioning properly. Air Conditioner AIR CONDITIONER REFERENCE CHART Tester Display Measurement Item/Range Normal Condition Diagnostic Note Air Outlet Servo Pls (F&R D) Driver side front A/C rear air flow air outlet servo motor target pulse / Min.: 0, Max.: 255 Customized value will be displayed - OK: The display is as specified in the normal condition. Result RESULT CHART Result Proceed to OK (Checking from the DTC) A OK (Checking from the PROBLEM SYMPTOMS TABLE) B NG C B: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See «PROBLEM SYMPTOMS TABLE»(ref-349723-S39777318562009120800000) ) C: REPLACE AIR CONDITIONING AMPLIFIER (See «REMOVAL»(ref-349723-S18821309652009120800000) ) A: Go to Next Step
2. REPLACE AIR OUTLET SERVO MOTOR (for Driver Side Front A/C Rear Air Flow) HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one and check that the condition returns to normal (see «DISASSEMBLY»(ref-349723-S32545862472009120800000) ). OK: Same problem does not occur. NG: REPLACE AIR CONDITIONING HARNESS (See «DISASSEMBLY»(ref-349723-S32545862472009120800000) ) OK: END

1. READ VALUE USING TECHSTREAM (AIR OUTLET SERVO MOTOR (for P Side Front A/C Rear Air Flow)) Use the Data List to check if the servo motor is functioning properly. Air Conditioner AIR CONDITIONER REFERENCE CHART Tester Display Measurement Item/Range Normal Condition Diagnostic Note Air Outlet Servo Pls (F&R P) Passenger side front A/C rear air flow air outlet servo motor target pulse / Min.: 0, Max.: 255 Customized value will be displayed - OK: The display is as specified in the normal condition. Result RESULT CHART Result Proceed to OK (Checking from the DTC) A OK (Checking from the PROBLEM SYMPTOMS TABLE) B NG C Techstream B: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See «PROBLEM SYMPTOMS TABLE»(ref-349723-S39777318562009120800000) ) C: REPLACE AIR CONDITIONING AMPLIFIER (See «REMOVAL»(ref-349723-S18821309652009120800000) ) A: Go to Next Step
2. REPLACE AIR OUTLET SERVO MOTOR (for Passenger Side Front A/C Rear Air Flow) HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one and check that the condition returns to normal (see «DISASSEMBLY»(ref-349723-S32545862472009120800000) ). OK: Same problem does not occur. NG: REPLACE AIR CONDITIONING HARNESS (See «DISASSEMBLY»(ref-349723-S32545862472009120800000) ) OK: END

Note. If this DTC is output, perform the following procedures before beginning the INSPECTION PROCEDURE. Change the air outlet mode position for the rear LH and RH seats to "FOOT". Turn the engine switch off, and wait approximately 90 seconds. Turn the engine switch on (IG). Clear DTCs (see DTC CHECK/CLEAR ). With the air outlet mode position for the rear LH and RH seats on "FOOT", wait approximately 45 seconds. Check for DTCs (see DTC CHECK/CLEAR ). If this DTC is not output, there is no malfunction. If this DTC is output, perform the INSPECTION PROCEDURE below.

1. READ VALUE USING TECHSTREAM (REAR AIR OUTLET SERVO MOTOR TARGET PULSE (for RH Side)) Use the Data List to check if the servo motor is functioning properly. Air Conditioner AIR CONDITIONER REFERENCE CHART Tester Display Measurement Item/Range Normal Condition Diagnostic Note Air Outlet Servo Pulse (RP) Rear air outlet servo motor target pulse (for RH side)/ Min.: 0, Max.: 255 Customized value will be displayed - OK: The display is as specified in the normal condition. Result RESULT CHART Result Proceed to OK (Checking from the DTC) A OK (Checking from the PROBLEM SYMPTOMS TABLE) B NG C B: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See «PROBLEM SYMPTOMS TABLE»(ref-349723-S39777318562009120800000) ) C: REPLACE AIR CONDITIONING AMPLIFIER (See «REMOVAL»(ref-349723-S18821309652009120800000) ) A: Go to Next Step
2. CHECK HARNESS AND CONNECTOR (REAR AIR CONDITIONING HARNESS - AIR CONDITIONING AMPLIFIER) Disconnect the S28 rear air conditioning harness connector. Disconnect the L76 air conditioning amplifier connector. Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE REFERENCE CHART Tester Connection Condition Specified Condition S28-6 (BRRG) - L76-12 (BRRG) Always Below 1 ohms S28-7 (BURR) - L76-13 (BURR) Always Below 1 ohms S28-8 (BRRB) - L76-14 (BRRB) Always Below 1 ohms L76-12 (BRRG) - Body ground Always 10 kohms or higher L76-13 (BURR) - Body ground Always 10 kohms or higher L76-14 (BRRB) - Body ground Always 10 kohms or higher NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to Next Step
3. REPLACE REAR AIR OUTLET SERVO MOTOR (for RH Side) HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one and check that the condition returns to normal (see «DISASSEMBLY»(ref-349723-S03180860272009120800000) ). OK: Same problem does not occur. NG: REPLACE REAR AIR CONDITIONING HARNESS (See «DISASSEMBLY»(ref-349723-S03180860272009120800000) ) OK: END

1. READ VALUE USING TECHSTREAM (MAX HOT BYPASS DAMPER SERVO MOTOR TARGET PULSE (for COOL)) Use the Data List to check if the servo motor is functioning properly. Air Conditioner AIR CONDITIONER REFERENCE CHART Tester Display Measurement Item/Range Normal Condition Diagnostic Note M/H Bypass COOL Targ Pls Max hot bypass servo motor COOL target pulse / Min.: 0, Max.: 255 Customized value will be displayed - OK: The display is as specified in the normal condition. Result RESULT CHART Result Proceed to OK (Checking from the DTC) A OK (Checking from the PROBLEM SYMPTOMS TABLE) B NG C B: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See «PROBLEM SYMPTOMS TABLE»(ref-349723-S39777318562009120800000) ) C: REPLACE AIR CONDITIONING AMPLIFIER (See «REMOVAL»(ref-349723-S18821309652009120800000) ) A: Go to Next Step
2. REPLACE MAX HOT BYPASS SERVO MOTOR (for COOL) HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one and check that the condition returns to normal (see «DISASSEMBLY»(ref-349723-S32545862472009120800000) ). OK: Same problem does not occur. NG: REPLACE AIR CONDITIONING HARNESS (See «DISASSEMBLY»(ref-349723-S32545862472009120800000) ) OK: END

Note. If this DTC is output, perform the following procedures before beginning the INSPECTION PROCEDURE. Turn the engine switch off, and wait approximately 90 seconds. Turn the engine switch on (IG). Clear DTCs (see DTC CHECK/CLEAR ). Check for DTCs (see DTC CHECK/CLEAR ). If this DTC is not output, there is no malfunction. If this DTC is output, perform the INSPECTION PROCEDURE below.

1. READ VALUE USING TECHSTREAM (REAR EXHAUST MODE SERVO MOTOR TARGET PULSE (for Emission)) Use the Data List to check if the servo motor is functioning properly. Air Conditioner AIR CONDITIONER REFERENCE CHART Tester Display Measurement Item/Range Normal Condition Diagnostic Note Emission Target Pulse (R) Rear exhaust mode servo motor target pulse (for emission)/ Min.: 0, Max.: 255 Customized value will be displayed - OK: The display is as specified in the normal condition. Result RESULT CHART Result Proceed to OK (Checking from the DTC) A OK (Checking from the PROBLEM SYMPTOMS TABLE) B NG C B: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See «PROBLEM SYMPTOMS TABLE»(ref-349723-S39777318562009120800000) ) C: REPLACE AIR CONDITIONING AMPLIFIER (See «REMOVAL»(ref-349723-S18821309652009120800000) ) A: Go to Next Step
2. CHECK HARNESS AND CONNECTOR (REAR AIR CONDITIONING HARNESS - AIR CONDITIONING AMPLIFIER) Disconnect the S28 rear air conditioning harness connector. Disconnect the L76 air conditioning amplifier connector. Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE REFERENCE CHART Tester Connection Condition Specified Condition S28-6 (BRRG) - L76-12 (BRRG) Always Below 1 ohms S28-7 (BURR) - L76-13 (BURR) Always Below 1 ohms S28-8 (BRRB) - L76-14 (BRRB) Always Below 1 ohms L76-12 (BRRG) - Body ground Always 10 kohms or higher L76-13 (BURR) - Body ground Always 10 kohms or higher L76-14 (BRRB) - Body ground Always 10 kohms or higher NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to Next Step
3. REPLACE REAR EXHAUST MODE SERVO MOTOR (for Emission) HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one and check that the condition returns to normal (see «DISASSEMBLY»(ref-349723-S03180860272009120800000) ). OK: Same problem does not occur. NG: REPLACE REAR AIR CONDITIONING HARNESS (See «DISASSEMBLY»(ref-349723-S03180860272009120800000) ) OK: END

Note. If this DTC is output, perform the following procedures before beginning the INSPECTION PROCEDURE. Turn the engine switch off, and wait approximately 90 seconds. Turn the engine switch on (IG). Clear DTCs (see DTC CHECK/CLEAR ). Check for DTCs (see DTC CHECK/CLEAR ). If this DTC is not output, there is no malfunction. If this DTC is output, perform the INSPECTION PROCEDURE below.

1. READ VALUE USING TECHSTREAM (REAR EXHAUST MODE SERVO MOTOR TARGET PULSE (for Diffusion)) Use the Data List to check if the servo motor is functioning properly. Air Conditioner AIR CONDITIONER REFERENCE CHART Tester Display Measurement Item/Range Normal Condition Diagnostic Note Diffuse Target Pulse (R) Rear exhaust mode servo motor target pulse (for diffusion)/ Min.: 0, Max.: 255 Customized value will be displayed - OK: The display is as specified in the normal condition. Result RESULT CHART Result Proceed to OK (Checking from the DTC) A OK (Checking from the PROBLEM SYMPTOMS TABLE) B NG C B: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See «PROBLEM SYMPTOMS TABLE»(ref-349723-S39777318562009120800000) ) C: REPLACE AIR CONDITIONING AMPLIFIER (See «REMOVAL»(ref-349723-S18821309652009120800000) ) A: Go to Next Step
2. CHECK HARNESS AND CONNECTOR (REAR AIR CONDITIONING HARNESS - AIR CONDITIONING AMPLIFIER) Disconnect the S28 rear air conditioning harness connector. Disconnect the L76 air conditioning amplifier connector. Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE REFERENCE CHART Tester Connection Condition Specified Condition S28-6 (BRRG) - L76-12 (BRRG) Always Below 1 ohms S28-7 (BURR) - L76-13 (BURR) Always Below 1 ohms S28-8 (BRRB) - L76-14 (BRRB) Always Below 1 ohms L76-12 (BRRG) - Body ground Always 10 kohms or higher L76-13 (BURR) - Body ground Always 10 kohms or higher L76-14 (BRRB) - Body ground Always 10 kohms or higher NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to Next Step
3. REPLACE REAR EXHAUST SERVO MOTOR (for Diffusion) HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one and check that the condition returns to normal (see «DISASSEMBLY»(ref-349723-S03180860272009120800000) ). OK: Same problem does not occur. NG: REPLACE REAR AIR CONDITIONING HARNESS (See «DISASSEMBLY»(ref-349723-S03180860272009120800000) ) OK: END

1. CHECK DTC Clear the DTC (see «DTC CHECK/CLEAR»(ref-349723-S42465002282009120800000) ). Check for the DTC (see «DTC CHECK/CLEAR»(ref-349723-S42465002282009120800000) ). Result RESULT CHART Result Proceed to DTC B1499/99 is output A DTC B1499/99 is not output B B: USE SIMULATION METHOD TO CHECK (See «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-349706-S05264741182009120800000) ) A: GO TO CAN COMMUNICATION SYSTEM (See «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-349742-S27214063842009120800000) )

Scheme 269

The blower motor is operated by signals from the air conditioning amplifier. Blower motor speed signals are transmitted by changes in the duty ratio.

Duty Ratio

The duty ratio is the ratio of the blower motor ON time (A) to the total of the blower motor ON and OFF time (A + B).

The blower motor controller controls the blower motor speed.

Scheme 270

Scheme 271

Scheme 272

Scheme 273

Scheme 274

Scheme 275

Scheme 276

1. PERFORM ACTIVE TEST USING TECHSTREAM (BLOWER MOTOR) Select the Active Test, using the Techstream to generate a control command, and then check that the blower motor operates. Air Conditioner AIR CONDITIONER REFERENCE CHART Tester Display Test Part Control Range Diagnostic Note Blower Motor Blower motor Min.: 0, Max.: 31 - Result RESULT CHART Result Proceed to NG (blower motor does not operate) A NG (blower motor operates but does not change speed) B OK C B: Go to step 6 C: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See «PROBLEM SYMPTOMS TABLE»(ref-349723-S39777318562009120800000) ) A: Go to Next Step
2. INSPECT FUSE (HTR) Remove the HTR H-fuse from the engine room No. 1 relay block. Measure the resistance of the fuse. Standard resistance RESISTANCE REFERENCE CHART Tester Connection Condition Specified Condition HTR H-fuse Always Below 1 ohms NG: REPLACE FUSE OK: Go to Next Step
3. CHECK HARNESS AND CONNECTOR (BLOWER MOTOR - BODY GROUND) Disconnect the A40*1 or v1*2 blower motor connector. Measure the resistance according to the value(s) in the table below. Standard resistance w/o Air Suspension RESISTANCE REFERENCE CHART Tester Connection Condition Specified Condition A40-1 (GND) - Body ground Always Below 1 ohms w/ Air Suspension RESISTANCE REFERENCE CHART Tester Connection Condition Specified Condition v1-1 (GND) - Body ground Always Below 1 ohms NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to Next Step
4. CHECK HARNESS AND CONNECTOR (BLOWER MOTOR - BATTERY) Disconnect the A40*1 or v1*2 blower motor connector. Measure the voltage according to the value(s) in the table below. Standard voltage w/o Air Suspension VOLTAGE REFERENCE CHART Tester Connection Condition Specified Condition A40-3 (+B) - Body ground Always 11 to 14 V w/ Air Suspension VOLTAGE REFERENCE CHART Tester Connection Condition Specified Condition v1-3 (+B) - Body ground Always 11 to 14 V NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to Next Step
5. CHECK BLOWER MOTOR (SI VOLTAGE) Disconnect the L76 air conditioning amplifier connector. Measure the voltage according to the value(s) in the table below. Standard voltage w/o Air Suspension VOLTAGE REFERENCE CHART Tester Connection Condition Specified Condition A40-2 (SI) - Body ground Engine switch on (IG) 4.5 to 5.5 V w/ Air Suspension VOLTAGE REFERENCE CHART Tester Connection Condition Specified Condition v1-2 (SI) - Body ground Engine switch on (IG) 4.5 to 5.5 V NG: Go to step 8 OK: Go to Next Step
6. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER - BLOWER MOTOR) Disconnect the L76 air conditioning amplifier connector. Measure the voltage according to the value(s) in the table below. Standard voltage VOLTAGE REFERENCE CHART Tester Connection Switch Condition Specified Condition L76-3 (BLW) - L76-1 (GND) Engine switch on (IG) Blower switch OFF 4.5 to 5.5 V NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to Next Step
7. CHECK AIR CONDITIONING AMPLIFIER (BLW SIGNAL) Remove the air conditioning amplifier with its connectors still connected (see «REMOVAL»(ref-349723-S18821309652009120800000) ). Turn the engine switch on (IG). Turn the blower switch ON (Lo). Using an oscilloscope, check the waveform. Waveform (Reference): WAVEFORM REFERENCE CHART Item Contents Test Connector BLW (L76-3) - GND (L76-1) Tool Setting 1 V/DIV., 500 μsec./DIV. Vehicle Condition Engine switch: on (IG) Blower switch: OFF --> ON OK: Waveform is as shown in the illustration. HINT: Waveform varies with the blower level. NG: REPLACE AIR CONDITIONING AMPLIFIER (See «REMOVAL»(ref-349723-S18821309652009120800000) ) OK: REPLACE BLOWER MOTOR (See «REMOVAL»(ref-349723-S28713306042009120800000) )
8. CHECK HARNESS AND CONNECTOR (BLOWER MOTOR - AIR CONDITIONING AMPLIFIER) Disconnect the L76 air conditioning amplifier connector. Disconnect the A40*1 or v1*2 blower motor connector. Measure the resistance according to the value(s) in the table below. Standard resistance w/o Air Suspension RESISTANCE REFERENCE CHART Tester Connection Condition Specified Condition A40-2 (SI) - L76-3 (BLW) Always Below 1 ohms A40-2 (SI) - Body ground Always 10 kohms or higher L76-3 (BLW) - Body ground Always 10 kohms or higher w/ Air Suspension RESISTANCE REFERENCE CHART Tester Connection Condition Specified Condition v1-2 (SI) - L76-3 (BLW) Always Below 1 ohms v1-2 (SI) - Body ground Always 10 kohms or higher L76-3 (BLW) - Body ground Always 10 kohms or higher NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: REPLACE BLOWER MOTOR (See «REMOVAL»(ref-349723-S28713306042009120800000) )

HINT

Start the engine before inspection. Check the P-IG1 relay or battery if the smart access system with pushbutton start does not start.

Scheme 277

Scheme 278

1. INSPECT FUSE (P-IG1-1) Remove the P-IG1-1 fuse from the passenger side junction block. Measure the resistance of the fuse. Standard resistance RESISTANCE REFERENCE CHART Tester Connection Condition Specified Condition P-IG1-1 fuse Always Below 1 ohms NG: REPLACE FUSE OK: Go to Next Step
2. CHECK AIR CONDITIONING AMPLIFIER (IG+ VOLTAGE) Remove the air conditioning amplifier with its connectors still connected (see «REMOVAL»(ref-349723-S18821309652009120800000) ). Turn the engine switch on (IG). Measure the voltage according to the value(s) in the table below. Standard voltage VOLTAGE REFERENCE CHART Tester Connection Switch Condition Specified Condition L76-5 (IG+) - L76-1 (GND) Engine switch on (IG) 11 to 14 V L76-5 (IG+) - L76-2 (FGND) Engine switch on (IG) 11 to 14 V L76-5 (IG+) - L77-6 (RGND) Engine switch on (IG) 11 to 14 V OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See «PROBLEM SYMPTOMS TABLE»(ref-349723-S39777318562009120800000) ) NG: Go to Next Step
3. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER - BATTERY AND BODY GROUND) Disconnect the L76 and L77 air conditioning amplifier connectors. Measure the voltage according to the value(s) in the table below. Standard voltage VOLTAGE REFERENCE CHART Tester Connection Switch Condition Specified Condition L76-5 (IG+) - Body ground Engine switch off Below 1 V Engine switch on (IG) 11 to 14 V Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE REFERENCE CHART Tester Connection Condition Specified Condition L76-1 (GND) - Body ground Always Below 1 ohms L76-2 (FGND) - Body ground Always Below 1 ohms L77-6 (RGND) - Body ground Always Below 1 ohms NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See «PROBLEM SYMPTOMS TABLE»(ref-349723-S39777318562009120800000) )

ON-VEHICLE INSPECTION

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

Scheme 279

Scheme 280

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Scheme 283

Scheme 284

Scheme 285

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Scheme 287

Scheme 288

Scheme 289

Scheme 290

Scheme 291

Scheme 292

Scheme 293

Scheme 294

1. REMOVE COWL TOP VENTILATOR LOUVER RH (See «REMOVAL»(ref-349732-S04425564642009120800000) )
2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation. NOTE: After the engine switch is turned off, the HDD navigation system requires approximately 6 minutes to record various types of memory and settings. As a result, after turning the engine switch off, wait 6 minutes or more before disconnecting the cable from the negative (-) battery terminal.
3. REMOVE ENGINE ROOM SIDE COVER LH (See «REMOVAL»(ref-349714-S31912998822009120800000) )
4. REMOVE ENGINE ROOM SIDE COVER RH (See «REMOVAL»(ref-349714-S31912998822009120800000) )
5. REMOVE AIR CLEANER INLET COVER SUB-ASSEMBLY
6. REMOVE COOL AIR INTAKE DUCT SEAL (See «REMOVAL»(ref-349716-S20016930692009120800000) )
7. REMOVE RADIATOR GRILLE ASSEMBLY (See «REMOVAL»(ref-349736-S03523530332009120800000) )
8. REMOVE FRONT FENDER WHEEL OPENING MOLDING LH (See «REMOVAL»(ref-349736-S01821793382009120800000) )
9. REMOVE FRONT FENDER WHEEL OPENING MOLDING RH HINT: Use the same procedures described for the LH side.
10. REMOVE FRONT WHEEL OPENING EXTENSION PAD LH Remove the 3 screws and extension pad.
11. REMOVE FRONT WHEEL OPENING EXTENSION PAD RH HINT: Use the same procedures described for the LH side.
12. REMOVE FRONT FENDER LINER LH Using a screwdriver, remove the 2 clips. Partially remove the fender liner. HINT: It is not necessary to fully remove the fender liner. Partially remove it so that the bumper cover can be removed later.
13. REMOVE FRONT FENDER LINER RH HINT: Use the same procedures described for the LH side.
14. REMOVE FRONT BUMPER COVER Put protective tape around the front bumper cover. Remove the 8 screws. Detach the clip and remove the bumper seal bracket. HINT: Use the same procedures for the RH side and LH side. Detach the 6 claws and remove the front bumper cover as shown in the illustration. HINT: Use the same procedures for the RH side and LH side. Disconnect the 2 fog light connectors. w/ Intuitive Parking Assist System: Disconnect the No. 4 engine room main wire connector.
15. REMOVE NO. 1 ENGINE UNDER COVER (See «COOLANT»(ref-349716-S00642260722009120800000) )
16. REMOVE V-BANK COVER SUB-ASSEMBLY (See «REMOVAL»(ref-349724-S31319866602009120800000) )
17. REMOVE NO. 1 AIR CLEANER INLET (See «REMOVAL»(ref-349724-S31319866602009120800000) )
18. REMOVE ECM OUTLET DUCT (See «INSTALLATION»(ref-349723-S34519730462009120800000) )
19. REMOVE MILLIMETER WAVE RADAR SENSOR ASSEMBLY (w/ Dynamic Radar Cruise Control System) Disconnect the connector. Remove the 3 bolts and sensor.
20. REMOVE HOOD LOCK CONTROL CABLE COVER Detach the claw, and remove the 3 screws and cover.
21. REMOVE HOOD LOCK ASSEMBLY (See «HOOD LOCK CONTROL CABLE ASSEMBLY»(ref-349743-S13619535392009120800000) )
22. REMOVE RADIATOR UPPER SUPPORT Disconnect the 3 connectors and detach the 2 clamps. Detach the 5 clamps and disconnect the wire harness. Remove the 5 bolts and upper support.
23. RECOVER REFRIGERANT FROM REFRIGERATION SYSTEM (See «REPLACEMENT»(ref-349723-S35523775142009120800000) )
24. DISCONNECT DISCHARGE HOSE SUB-ASSEMBLY Remove the bolt and disconnect the cooler refrigerant discharge hose from the cooler condenser. NOTE: When loosening the bolt, do not allow any tools to contact the hose. When loosening the bolt, hold a part of the hose near the connector. Remove the O-ring from the cooler refrigerant discharge hose. NOTE: Seal the openings of the disconnected parts using vinyl tape to prevent moisture and foreign matter from entering them.
25. DISCONNECT LIQUID TUBE SUB-ASSEMBLY Remove the bolt and disconnect the cooler refrigerant liquid tube from the cooler condenser. NOTE: When loosening the bolt, do not allow any tools to contact the tube. When loosening the bolt, hold a part of the tube near the connector. Remove the O-ring from the cooler refrigerant liquid tube. NOTE: Seal the openings of the disconnected parts using vinyl tape to prevent moisture and foreign matter from entering them.
26. REMOVE COOLER CONDENSER ASSEMBLY Remove the 4 bolts and cooler condenser.
27. REMOVE COOLER DRYER Using a 14 mm socket hexagon wrench, remove the cap from the modulator. Remove the O-ring from the cap. Using pliers, remove the cooler dryer.

Scheme 295

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Scheme 301

1. INSTALL COOLER DRYER Using pliers, install the cooler dryer. Apply a sufficient amount of compressor oil to the contact surfaces of a new O-ring and the cap. Compressor oil: ND-OIL 8 or equivalent Install the O-ring to the cap. Using a 14 mm socket hexagon wrench, install the cap to the modulator. Torque: 4.1 N*m (42 kgf*cm, 36 in.*lbf)
2. INSTALL COOLER CONDENSER ASSEMBLY Install the cooler condenser with the 4 bolts. Torque: 5.0 N*m (51 kgf*cm, 44 in.*lbf)
3. CONNECT LIQUID TUBE SUB-ASSEMBLY Remove the attached vinyl tape from the tube and the connecting part of the cooler condenser. Sufficiently apply compressor oil to a new O-ring and the fitting surface of the tube joint. Compressor oil: ND-OIL 8 or equivalent Install the O-ring to the cooler refrigerant liquid tube. Install the cooler refrigerant liquid tube to the cooler condenser with the bolt. Torque: 5.4 N*m (55 kgf*cm, 48 in.*lbf) NOTE: When tightening the bolt, do not allow any tools to contact the tube. When tightening the bolt, hold a part of the tube near the connector.
4. CONNECT DISCHARGE HOSE SUB-ASSEMBLY Remove the attached vinyl tape from the hose and the connecting part of the cooler condenser. Sufficiently apply compressor oil to a new O-ring and the fitting surface of the hose joint. Compressor oil: ND-OIL 8 or equivalent Install the O-ring to the cooler refrigerant discharge hose. Install the cooler refrigerant discharge hose to the cooler condenser with the bolt. Torque: 5.4 N*m (55 kgf*cm, 48 in.*lbf) NOTE: When tightening the bolt, do not allow any tools to contact the hose. When tightening the bolt, hold a part of the hose near the connector.
5. INSTALL RADIATOR UPPER SUPPORT Attach the wire harness to the upper support with the 5 clamps. Install the upper support with the 5 bolts. Torque: 8.0 N*m (82 kgf*cm, 71 in.*lbf) Attach the 2 clamps to the radiator support LH and RH side. Connect the 3 connectors.
6. INSTALL HOOD LOCK ASSEMBLY (See «INSTALLATION»(ref-349743-S08403688732009120800000) )
7. INSTALL HOOD LOCK CONTROL CABLE COVER Install the cover with the 3 screws and attach the claw.
8. INSTALL MILLIMETER WAVE RADAR SENSOR ASSEMBLY (w/ Dynamic Radar Cruise Control System) Install the sensor with the 3 bolts. Torque: 5.5 N*m (56 kgf*cm, 49 in.*lbf) Connect the connector.
9. INSTALL ECM OUTLET DUCT (See «CONDENSER»(ref-349723-S38482596162009120800000) )
10. INSTALL NO. 1 AIR CLEANER INLET (See «INSTALLATION»(ref-349724-S09859827162009120800000) )
11. INSTALL V-BANK COVER SUB-ASSEMBLY
12. INSTALL NO. 1 ENGINE UNDER COVER
13. INSTALL FRONT BUMPER COVER w/ Intuitive Parking Assist System: Connect the No. 4 engine room main wire connector. Connect the 2 fog light connectors. Attach the 6 claws to install the front bumper cover as shown in the illustration. HINT: Use the same procedures for the RH side and LH side. Attach the clip to install the bumper seal bracket. HINT: Use the same procedures for the RH side and LH side. Install the 8 screws.
14. INSTALL FRONT FENDER LINER LH Install the 2 clips.
15. INSTALL FRONT FENDER LINER RH HINT: Use the same procedures described for the LH side.
16. INSTALL FRONT WHEEL OPENING EXTENSION PAD LH Install the extension pad with the 3 screws.
17. INSTALL FRONT WHEEL OPENING EXTENSION PAD RH HINT: Use the same procedures described for the LH side.
18. INSTALL FRONT FENDER WHEEL OPENING MOLDING LH (See «INSTALLATION»(ref-349736-S35594191962009120800000) )
19. INSTALL FRONT FENDER WHEEL OPENING MOLDING RH HINT: Use the same procedures described for the LH side.
20. INSTALL RADIATOR GRILLE ASSEMBLY (See «INSTALLATION»(ref-349736-S28013553762009120800000) )
21. INSTALL COOL AIR INTAKE DUCT SEAL (See «INSTALLATION»(ref-349716-S01754793652009120800000) )
22. INSTALL AIR CLEANER INLET COVER SUB-ASSEMBLY
23. INSTALL ENGINE ROOM SIDE COVER LH (See «INSTALLATION»(ref-349714-S23488176532009120800000) )
24. INSTALL ENGINE ROOM SIDE COVER RH (See «INSTALLATION»(ref-349714-S23488176532009120800000) )
25. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
26. INSTALL COWL TOP VENTILATOR LOUVER RH (See «INSTALLATION»(ref-349732-S09051375432009120800000) )
27. ADD COMPRESSOR OIL (See «REPLACEMENT»(ref-349723-S35523775142009120800000) )
28. CHARGE REFRIGERANT (See «REPLACEMENT»(ref-349723-S35523775142009120800000) )
29. WARM UP ENGINE (See «REPLACEMENT»(ref-349723-S35523775142009120800000) )
30. CHECK FOR LEAKAGE OF REFRIGERANT (See «REPLACEMENT»(ref-349723-S35523775142009120800000) )
31. PERFORM INITIALIZATION Perform initialization (see «INITIALIZATION»(ref-349706-S07943075812009120800000) ). NOTE: Certain systems need to be initialized after disconnecting and reconnecting the cable from the negative (-) battery terminal.

Scheme 302

Scheme 303

1. REMOVE COWL TOP VENTILATOR LOUVER RH (See «REMOVAL»(ref-349732-S04425564642009120800000) )
2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation. NOTE: After the engine switch is turned off, the HDD navigation system requires approximately 6 minutes to record various types of memory and settings. As a result, after turning the engine switch off, wait 6 minutes or more before disconnecting the cable from the negative (-) battery terminal.
3. REMOVE INSTRUMENT SIDE PANEL LH (See «REMOVAL»(ref-349746-S04541701892009120800000) )
4. REMOVE NO. 1 INSTRUMENT CLUSTER MOLDING (See «REMOVAL»(ref-349746-S04541701892009120800000) )
5. REMOVE NO. 1 INSTRUMENT PANEL SAFETY PAD SUB-ASSEMBLY (See «REMOVAL»(ref-349746-S04541701892009120800000) )
6. REMOVE ROOM TEMPERATURE SENSOR Disconnect the duct. Disconnect the connector. Detach the claws and remove the sensor.

Scheme 304

1. INSPECT ROOM TEMPERATURE SENSOR Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE REFERENCE CHART 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) 1.95 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: Touching the sensor even slightly may change the resistance value. Hold the connector of the sensor. When measuring the resistance, the sensor temperature must be the same as the ambient temperature. HINT: As the temperature increases, the resistance decreases (see the graph above). If the result is not as specified, replace the sensor.

Scheme 305

1. INSTALL ROOM TEMPERATURE SENSOR Attach the claws to install the sensor. Connect the connector. Connect the duct.
2. INSTALL NO. 1 INSTRUMENT PANEL SAFETY PAD SUB-ASSEMBLY (See «INSTALLATION»(ref-349746-S09854143102009120800000) )
3. INSTALL NO. 1 INSTRUMENT CLUSTER MOLDING (See «INSTALLATION»(ref-349746-S09854143102009120800000) )
4. INSTALL INSTRUMENT SIDE PANEL LH (See «INSTALLATION»(ref-349746-S09854143102009120800000) )
5. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
6. REMOVE COWL TOP VENTILATOR LOUVER RH (See «INSTALLATION»(ref-349732-S09051375432009120800000) )
7. PERFORM INITIALIZATION Perform initialization (see «INITIALIZATION»(ref-349706-S07943075812009120800000) ). NOTE: Certain systems need to be initialized after disconnecting and reconnecting the cable from the negative (-) battery terminal.
8. CHECK SRS WARNING LIGHT Check the SRS warning light (see «DIAGNOSIS SYSTEM»(ref-349738-S23481667942009120800000) ).

Scheme 306

Scheme 307

1. REMOVE ROOM TEMPERATURE SENSOR Using a screwdriver, detach the 4 claws and remove the sensor, and then disconnect the connector.

Scheme 308

1. INSPECT ROOM TEMPERATURE SENSOR Remove the room temperature sensor (see «ROOM TEMPERATURE SENSOR (FOR REAR SIDE)»(ref-349723-S18882777602009120800000) ). Disconnect the connector from the room temperature sensor. Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE REFERENCE CHART 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) 1.95 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 above). If the resistance value is not as specified, replace the sensor.