HOW TO PROCEED WITH TROUBLESHOOTING
HINT
- Use the following procedure to troubleshoot the air conditioning system.
- *: Use the Techstream.
- VEHICLE BROUGHT TO WORKSHOP NEXT: Go to next step
- INSPECT BATTERY VOLTAGE Inspect the battery voltage with the power switch off. Standard Voltage 11 to 14 V If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step. NEXT: Go to next step
- CHECK COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM* Use the Techstream to check if the LIN communication system is functioning normally. Result Result Proceed to LIN DTC is not output A LIN DTC is output B B --> GO TO APPROPRIATE LIN COMMUNICATION SERVICE INFORMATION 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 Proceed to CAN DTC is not output A CAN DTC is output B B --> GO TO APPROPRIATE CAN COMMUNICATION SERVICE INFORMATION A: Go to next step
- CHECK FOR DTC* Check for DTCs and note any code that is output. Clear the DTCs. Recheck for DTCs. Based on the DTCs output above, try to force the A/C system to output DTCs by simulating the conditions indicated by the DTC. Result Result Proceed to DTC is output A DTC is not output B B --> Go to step 7 . A: Go to next step
- DIAGNOSTIC TROUBLE CODE CHART Find the output code in Diagnostic Trouble Code Chart. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-398247-S02993491322011051600000) . NEXT --> Go to step 9 .
- PROBLEM SYMPTOMS TABLE Refer to Problem Symptoms Table. Refer to «PROBLEM SYMPTOMS TABLE»(ref-398247-S14990846712011051600000) . Result Result Proceed to Fault is not listed in Problem Symptoms Table A Fault is listed in Problem Symptoms Table B B --> Go to step 9 . A: Go to next step
- OVERALL ANALYSIS AND TROUBLESHOOTING* Panel diagnosis (indicator check, sensor check). Refer to «DIAGNOSIS SYSTEM»(ref-398247-S30244029262011051600000) Data List / Active Test. Refer to «DATA LIST / ACTIVE TEST»(ref-398247-S35874264702011051600000) Terminals of ECU. Refer to «TERMINALS OF ECU»(ref-398247-S13429258932011051600000) On-vehicle Inspection Inspection NEXT: Go to next step
- ADJUST, REPAIR OR REPLACE NEXT --> END
PROBLEM SYMPTOMS TABLE
HINT
- Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, 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.
- Inspect the fuses and relays related to this system before inspecting the suspected areas below.
| Symptom | Suspected Area | See |
|---|---|---|
| All functions of the A/C system do not operate | IG power source circuit | Refer to IG Power Source Circuit |
| Back-up power source circuit | Refer to Back-up Power Source Circuit | |
| Air conditioning control panel circuit | Refer to Air Conditioning Control Panel Circuit | |
| Integration control and panel assembly | Refer to REMOVAL | |
| Air conditioning amplifier assembly | Refer to REMOVAL | |
| Air flow control: No blower operation | Blower motor circuit | Refer to Blower Motor Circuit |
| Air conditioning control panel circuit | Refer to Air Conditioning Control Panel Circuit | |
| Integration control and panel assembly | Refer to REMOVAL | |
| Air conditioning amplifier assembly | Refer to REMOVAL | |
| Air flow control (for front): No blower control | Blower motor circuit | Refer to Blower Motor Circuit |
| Air conditioning control panel circuit | Refer to Air Conditioning Control Panel Circuit | |
| Integration control and panel assembly | Refer to REMOVAL | |
| Air conditioning amplifier assembly | Refer to REMOVAL | |
| Air flow control (for rear): No blower control | A/C NO. 2 fuse | |
| Rear blower motor circuit | Refer to Rear Blower Motor Circuit | |
| Air flow control: Insufficient air flow | Blower motor circuit | Refer to Blower Motor Circuit |
| Air conditioning amplifier assembly | Refer to REMOVAL | |
| Temperature control: No cool air comes out | Refrigerant volume | Refer to ON-VEHICLE INSPECTION |
| Refrigerant pressure | Refer to ON-VEHICLE INSPECTION | |
| Air conditioning pressure sensor circuit | Refer to DTC B1423/23: Pressure Sensor Circuit | |
| Air mix damper control servo motor circuit (for Driver side) | Refer to DTC B1446/46: Air Mix Damper Control Servo Motor Circuit (Driver Side) | |
| Air mix damper control servo motor circuit (for Front passenger side) | Refer to DTC B1441/41: Air Mix Damper Control Servo Motor Circuit (Passenger Side) | |
| Evaporator temperature sensor circuit | Refer to DTC B1413/13: Evaporator Temperature Sensor Circuit | |
| Room temperature sensor circuit | Refer to DTC B1411/11: Room Temperature Sensor Circuit | |
| Room humidity sensor circuit | Refer to DTC B1462/62: Room Humidity Sensor Circuit | |
| Ambient temperature sensor circuit | Refer to DTC B1412/12: Ambient Temperature Sensor Circuit | |
| Air conditioning control panel circuit | Refer to Air Conditioning Control Panel Circuit | |
| Expansion valve | Refer to REMOVAL | |
| Integration control and panel assembly | Refer to REMOVAL | |
| CAN communication system | Refer to DIAGNOSIS SYSTEM | |
| Air conditioning amplifier assembly | Refer to REMOVAL | |
| NO. 2 engine wire | Refer to REMOVAL | |
| Compressor with motor assembly | Refer to REMOVAL | |
| Power management control ECU | Refer to REMOVAL | |
| Temperature control: No warm air comes out | Air mix damper control servo motor circuit (for Driver side) | Refer to DTC B1446/46: Air Mix Damper Control Servo Motor Circuit (Driver Side) |
| Air mix damper control servo motor circuit (for Front passenger side) | Refer to DTC B1441/41: Air Mix Damper Control Servo Motor Circuit (Passenger Side) | |
| Evaporator temperature sensor circuit | Refer to DTC B1413/13: Evaporator Temperature Sensor Circuit | |
| Room temperature sensor circuit | Refer to DTC B1411/11: Room Temperature Sensor Circuit | |
| Room humidity sensor circuit | Refer to DTC B1462/62: Room Humidity Sensor Circuit | |
| Ambient temperature sensor circuit | Refer to DTC B1412/12: Ambient Temperature Sensor Circuit | |
| Air conditioning control panel circuit | Refer to Air Conditioning Control Panel Circuit | |
| Integration control and panel assembly | Refer to REMOVAL | |
| Exhaust heat recirculation system | Refer to PROBLEM SYMPTOMS TABLE | |
| CAN communication system | Refer to DIAGNOSIS SYSTEM | |
| Air conditioning amplifier assembly | Refer to REMOVAL | |
| Hybrid Vehicle Control ECU | Refer to REMOVAL | |
| Temperature control: Output air is warmer or cooler than the set temperature or response is slow | Refrigerant volume | Refer to ON-VEHICLE INSPECTION |
| Refrigerant pressure | Refer to ON-VEHICLE INSPECTION | |
| Solar sensor circuit (for Driver side) | Refer to DTC B14A2: Driver Side Solar Sensor Short Circuit | |
| Solar sensor circuit (for Front passenger side) | Refer to DTC B14A3: Front Passenger Side Solar Sensor Short Circuit | |
| Room temperature sensor circuit | Refer to DTC B1411/11: Room Temperature Sensor Circuit | |
| Room humidity sensor circuit | Refer to DTC B1462/62: Room Humidity Sensor Circuit | |
| Ambient temperature sensor circuit | Refer to DTC B1412/12: Ambient Temperature Sensor Circuit | |
| Air mix damper control servo motor circuit (for Driver side) | Refer to DTC B1446/46: Air Mix Damper Control Servo Motor Circuit (Driver Side) | |
| Air mix damper control servo motor circuit (for Front passenger side) | Refer to DTC B1441/41: Air Mix Damper Control Servo Motor Circuit (Passenger Side) | |
| Air inlet damper control servo motor circuit | Refer to DTC B1442/42: Air Inlet Damper Control Servo Motor Circuit | |
| Air conditioning control panel circuit | Refer to Air Conditioning Control Panel Circuit | |
| Radiator unit sub-assembly | Refer to DISASSEMBLY | |
| Expansion valve | Refer to REMOVAL | |
| Integration control and panel assembly | Refer to REMOVAL | |
| Exhaust heat recirculation system | Refer to PROBLEM SYMPTOMS TABLE | |
| CAN communication system | Refer to DIAGNOSIS SYSTEM | |
| Air conditioning amplifier assembly | Refer to REMOVAL | |
| NO. 2 engine wire | Refer to REMOVAL | |
| Compressor with motor assembly | Refer to REMOVAL | |
| Power management control ECU | Refer to REMOVAL | |
| Temperature control: No temperature control (only Max. cool or Max. warm) | Air mix damper control servo motor circuit (for Driver side) | Refer to DTC B1446/46: Air Mix Damper Control Servo Motor Circuit (Driver Side) |
| Air mix damper control servo motor circuit (for Front Passenger side) | Refer to DTC B1441/41: Air Mix Damper Control Servo Motor Circuit (Passenger Side) | |
| Room temperature sensor circuit | Refer to DTC B1411/11: Room Temperature Sensor Circuit | |
| Room humidity sensor circuit | Refer to DTC B1462/62: Room Humidity Sensor Circuit | |
| Ambient temperature sensor circuit | Refer to DTC B1412/12: Ambient Temperature Sensor Circuit | |
| Evaporator temperature sensor circuit | Refer to DTC B1413/13: Evaporator Temperature Sensor Circuit | |
| Solar sensor circuit (for Driver side) | Refer to DTC B14A2: Driver Side Solar Sensor Short Circuit | |
| Solar sensor circuit (for Front passenger side) | Refer to DTC B14A3: Front Passenger Side Solar Sensor Short Circuit | |
| Air conditioning control panel circuit | Refer to Air Conditioning Control Panel Circuit | |
| Integration control and panel assembly | Refer to REMOVAL | |
| Air conditioning amplifier assembly | Refer to REMOVAL | |
| Heater performance is low (engine is stopped) | Heater water pump circuit | Refer to Heater Water Pump Circuit |
| Air conditioning amplifier assembly | Refer to REMOVAL | |
| No air inlet control | Air inlet damper control servo motor circuit | Refer to DTC B1442/42: Air Inlet Damper Control Servo Motor Circuit |
| Air conditioning control panel circuit | Refer to Air Conditioning Control Panel Circuit | |
| Integration control and panel assembly | Refer to REMOVAL | |
| Air conditioning amplifier assembly | Refer to REMOVAL | |
| No air flow mode control | Air outlet damper control servo motor circuit | Refer to DTC B1443/43: Air Outlet Damper Control Servo Motor Circuit |
| Air conditioning control panel circuit | Refer to Air Conditioning Control Panel Circuit | |
| Integration control and panel assembly | Refer to REMOVAL | |
| Air conditioning amplifier assembly | Refer to REMOVAL | |
| Auto recirculation control function does not operate normally. (w/ Navigation System) | Room temperature sensor circuit | Refer to DTC B1411/11: Room Temperature Sensor Circuit |
| Ambient temperature sensor circuit | Refer to DTC B1412/12: Ambient Temperature Sensor Circuit | |
| Air inlet damper control servo motor circuit | Refer to DTC B1442/42: Air Inlet Damper Control Servo Motor Circuit | |
| Air conditioning control panel circuit | Refer to Air Conditioning Control Panel Circuit | |
| Integration control and panel assembly | Refer to REMOVAL | |
| Air conditioning amplifier assembly | Refer to REMOVAL | |
| A/C memory call function does not operate normally. | CAN communication system | Refer to DIAGNOSIS SYSTEM |
| Air conditioning amplifier assembly | Refer to REMOVAL | |
| Main body ECU (multiplex network body ECU) | Refer to REMOVAL | |
| Certification ECU | ||
| Plasmacluster does not operate. (w/ Ion Generator) | Plasmacluster Circuit | Refer to DTC B14A1: Air Purifier Open Circuit |
| Air conditioning amplifier assembly | Refer to REMOVAL | |
| ECO MODE switch does not operate normally. | ECO mode switch circuit | Refer to ECO Switch Circuit |
| Air conditioning amplifier assembly | Refer to REMOVAL | |
| Diagnostic trouble codes (DTCs) are not stored. Set mode is cleared when power switch is off. | Back-up power source circuit | Refer to Back-up Power Source Circuit |
| Air conditioning amplifier assembly | Refer to REMOVAL |
AIR CONDITIONING SYSTEM
Scheme 161
Scheme 162
Scheme 163
Scheme 164
- AIR CONDITIONING AMPLIFIER ASSEMBLY HINT: Check from the rear of the connector while it is connected to the air conditioning amplifier assembly. Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition F47-1 (IG+) - F47-14 (GND) W - W-B Power source (IG) Power switch on (IG) 11 to 14 V Power switch off Below 1 V F47-5 (TAM) - F47-13 (SG-2) P - L Ambient temperature sensor signal Power switch on (IG) Ambient temperature: 25°C (77°F) 1.35 to 1.75 V Power switch on (IG) Ambient temperature: 40°C (104°F) 0.9 to 1.2 V F47-10 (S5-3) - F47-13 (SG-2) BR - L Power supply for A/C pressure sensor Power switch on (IG) A/C switch: on 4.75 to 5.25 V Power switch on (IG) A/C switch: off Below 1 V F47-11 (CANH) - F47-12 (CANL) B - W CAN communication system CAN communication circuit Pulse generation F47-13 (SG-2)*1 - Body ground L - Body ground Ground for A/C pressure sensor, A/C ambient temperature sensor, smog ventilation sensor Always Below 1 V F47-14 (GND) - Body ground W-B - Body ground Ground for main power supply Always Below 1 V F47-21 (B) - F47-14 (GND) GR - W-B Power source (Back-up) Always 11 to 14 V F47-23 (BLW) - F47-14 (GND) R - W-B Blower motor speed control signal Power switch on (IG) Blower switch: LO Pulse generation (See waveform 1 see scheme 19 ) F47-28 (RH) - F47-34 (SG-1) L - GR Room humidity sensor signal Power switch on (IG) Cabin humidity: 40% 1.61 to 2.24 V Power switch on (IG) Cabin humidity: 60% 2.26 to 2.66 V F47-29 (TR) - F47-34 (SG-1) R - GR Room temperature sensor signal Power switch on (IG) Cabin temperature: 25°C (77°F) 1.8 to 2.2 V Power switch on (IG) Cabin temperature: 40°C (104°F) 1.2 to 1.6 V F47-31 (S5-4) - F47-34 (SG-1) P - GR Power supply for room temperature sensor, room humidity sensor Power switch off Below 1 V Power switch on (IG) 4.5 to 5.5 V F47-32 (TSP) - F47-14 (GND) LG - W-B Solar sensor signal (for Front passenger side) Power switch on (IG) Solar sensor subjected to electric light 0.8 to 4.3 V Power switch on (IG) Solar sensor covered with a cloth Below 0.8 V F47-33 (TSD) - F47-14 (GND) V - W-B Solar sensor signal (for Driver side) Power switch on (IG) Solar sensor subjected to electric light 0.8 to 4.3 V Power switch on (IG) Solar sensor covered with a cloth Below 0.8 V F47-34 (SG-1) - Body ground GR - Body ground Ground for room temperature sensor, room humidity sensor Always Below 1 V F47-37 (LIN1) - F47-14 (GND) W - W-B LIN communication signal Power switch on (IG) Pulse generation F47-39 (PCD1) - Body ground L - Body ground Plasmacluster (ion generator) signal Plasmacluster (ion generator) not operated Below 1 V Plasmacluster (ion generator) operated 11 to 14 V F47-40 (PCD2) - Body ground P - Body ground Plasmacluster (ion generator) signal Plasmacluster (ion generator) not operated Below 1 V Plasmacluster (ion generator) operated 11 to 14 V F48-5 (PLSM) - Body ground Y - Body ground Power switch signal Power switch off Below 1 V Power switch on (IG) 11 to 14 V F48-16 (PRE) - F47-13 (SG-2) V - L A/C pressure sensor signal A/C system operating, Refrigerant pressure: Abnormal pressure (more than 3140 kPa (32.0 kgf/cm 2, 455 psi)) 4.84 V or higher A/C system operating, Refrigerant pressure: Abnormal pressure (less than 196 kPa (2.0 kgf/cm 2, 28 psi)) Below 0.73 V A/C system operating, Refrigerant pressure: Normal pressure (less than 3140 kPa (32.0 kgf/cm 2, 455 psi) and more than 196 kPa (2.0 kgf/cm 2, 28 psi)) 0.73 to 4.84 V F48-22 (BLWH) - Body ground G - Body ground Rear blower motor signal Power switch on (IG) Blower switch on: LO Pulse generation (See waveform 1 see scheme 19 ) z1-2 (BUS G) - Body ground - Ground for BUS IC Always Below 1 V z1-3 (BUS) - z1-2 (BUS G) - BUS IC control signal Power switch on (IG) Pulse generation z1-4 (B BUS) - z1-2 (BUS G) - Power supply for BUS IC Power switch off 11 to 14 V z1-5 (SGA) - Body ground - Ground for evaporator temperature sensor Always Below 1 V z1-6 (TEA) - z1-5 (SGA) - A/C evaporator temperature sensor signal Power switch on (IG) Evaporator temperature: 0°C (32°F) 2.0 to 2.4 V Power switch on (IG) Evaporator temperature: 15°C (59°F) 1.4 to 1.8 V *1: w/o Navigation System Waveform 1: Item Content Terminal No. F47-23 (BLW) - F47-14 (GND) Tool Setting 1 V/DIV., 500 μs/DIV. Vehicle Condition Power switch on (IG) Blower switch: LO
- INTEGRATION CONTROL AND PANEL ASSEMBLY (w/o Navigation System) HINT: Check from the rear of the connector while it is connected to the integration control and panel assembly. Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition F59-3 (GND) - Body ground W-B - Body ground Ground Always Below 1 ohms F59-8 (+B) - Body ground LG - Body ground Battery Power switch off 11 to 14 V F59-9 (IG+) - Body ground P - Body ground Power switch signal Power switch off Below 1 V Power switch on (IG) 11 to 14 V F59-11 (LIN1) - Body ground W - Body ground LIN communication signal Power switch on (IG) Pulse generation
- INTEGRATION CONTROL AND PANEL ASSEMBLY (w/ Navigation System) HINT: Check from the rear of the connector while it is connected to the integration control and panel assembly. Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition F57-3 (GND) - Body ground W-B - Body ground Ground Always Below 1 ohms F57-8 (+B) - Body ground LG - Body ground Battery Power switch off 11 to 14 V F57-9 (IG+) - Body ground P - Body ground Power switch signal Power switch off Below 1 V Power switch on (IG) 11 to 14 V F57-11 (LIN1) - Body ground W - Body ground LIN communication signal Power switch on (IG) Pulse generation
- POWER MANAGEMENT CONTROL ECU
- MULTI-DISPLAY ASSEMBLY (w/o Navigation System)
Scheme 165
Scheme 166
Scheme 167
Scheme 168
Scheme 169
Scheme 170
- DESCRIPTION Air conditioning system data and Diagnostic Trouble Codes (DTCs) can be read through the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be malfunctioning, use the Techstream to check for malfunctions and perform troubleshooting.
- CHECK DLC3 Check the DLC3. Refer to «GENERAL INFORMATION»(ref-398089-S21707799022011051600000) .
- LIST OF OPERATION METHODS By operating each of the air conditioning control switches as shown in the diagram below, it is possible to enter diagnostic check mode.
- INDICATOR CHECK Turn the power switch off. Turn the power switch on (ACC) and wait at least 5 seconds. Turn the power switch on (IG) while pressing the integration control and panel assembly "AUTO" switch and "Recirculation/Fresh" switch simultaneously. Hold both switches until the indicator check screen appears. TEXT IN ILLUSTRATION *1 Integration Control and Panel Assembly (w/o Navigation System) *2 Integration Control and Panel Assembly (w/ Navigation System) The indicator check is automatically performed when panel diagnosis is activated. Check that the indicators light up and go off 4 times at 1-second intervals continuously. HINT: The sensor check automatically starts when the indicator check is completed. Press the "OFF" switch to cancel the check mode. TEXT IN ILLUSTRATION *1 Display and Navigation Module Display (w/ Navigation System) *2 Integration Control and Panel Assembly (w/o Navigation System)
- SENSOR CHECK (DTC CHECK) Start the engine and warm it up. Perform the indicator check. HINT: After the indicator check is completed, the system enters DTC check mode automatically. Read the DTC displayed on the multi-display assembly*1 or the integration control and panel assembly*2. NOTE: In sensor check mode, which is automatically entered after indicator check mode, troubleshooting may be partially performed. Be sure to perform the sensor check again. HINT: Refer to Diagnostic Trouble Code Chart for details of the codes. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-398247-S02993491322011051600000) . When there are no problems, DTC 00 is output. As an example, the illustration shows that display DTC 12 is output. *1: w/ Navigation System *2: w/o Navigation System TEXT IN ILLUSTRATION *1 Display and Navigation Module Display (w/ Navigation System) *2 Multi-display Assembly (w/o Navigation System) *3 Diagnostic Trouble Code (DTC) If the steps are difficult to read because they change automatically, press the "FRONT DEF" switch to display the steps one at a time so that they can be read easily. The items are displayed step by step each time the "FRONT DEF" switch is pressed. HINT: Press the "OFF" switch to finish panel diagnosis. TEXT IN ILLUSTRATION *1 Integration Control and Panel Assembly (w/o Navigation System) *2 Integration Control and Panel Assembly (w/ Navigation System) Clear the DTC During the sensor check, press the "FRONT DEF" switch and "OFF" switch simultaneously. TEXT IN ILLUSTRATION *1 Integration Control and Panel Assembly (w/o Navigation System) *2 Integration Control and Panel Assembly (w/ Navigation System)
DTC CHECK / CLEAR
- DTC CHECK USING TECHSTREAM Turn the power switch off. Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Air Conditioner / DTC. Check for DTCs.
- DTC CLEAR USING TECHSTREAM Turn the power switch off. Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Air Conditioner / DTC. Clear the DTCs.
DATA LIST / ACTIVE TEST
- DATA LIST HINT: Using the Techstream to read the Data List allows the values or states of switches, sensors, 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 be 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. Turn the power switch off. Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Air Conditioner / Data List. Check the value(s) by referring to the table below. AIR CONDITIONER Tester Display Measurement Item/Range Normal Condition Room Temperature Sensor Room temperature sensor / Min.: -6.5°C (20.3°F) Max.: 57.25°C (135.05°F) Actual cabin temperature displayed Ambient Temp Sensor Ambient temperature sensor / Min.: -23.3°C (-9.94°F) Max.: 65.95°C (150.71°F) Actual ambient temperature displayed Adjusted Ambient Temp Adjusted ambient temperature / Min.: -30.8°C (-23.44°F) Max.: 50.8°C (123.44°F) - Evaporator Fin Thermistor Evaporator temperature sensor / Min.: -29.7°C (-21.46°F) Max.: 59.55°C (139.19°F) Actual evaporator temperature displayed Evaporator Target Temp Evaporator target temperature / Min.: -327.68°C (-557.82°F) Max.: 327.67°C (621.81°F) Evaporator target temperature displayed Solar Sensor (D side) Driver side solar sensor / Min.: 0 Max.: 255 Driver side solar sensor value increases as brightness increases Solar Sensor (P side) Passenger side solar sensor / Min.: 0 Max.: 255 Passenger side solar sensor value increases as brightness increases Engine Coolant Temp Engine coolant temperature sensor / Min.: 1.3°C (34.34°F) Max.: 90.55°C (194.99°F) Actual engine coolant temperature displayed Set Temperature (D side) Driver side set temperature / Min.: 17.5°C (63.5°F) Max.: 32.5°C (90.5°F) Driver side actual set temperature displayed Set Temperature (P side) Passenger side set temperature / Min.: 17.5°C (63.5°F) Max.: 32.5°C (90.5°F) Passenger side actual set temperature displayed Blower Motor Speed Level Blower motor speed level / Min.: 0 Max.: 31 Displayed speed level increases in range between 0 and 31 as blower motor speed increases Regulator Pressure Sensor Air conditioning pressure sensor / Min.: -0.45668 MPaG Max.: 3.29437 MPaG Actual regulator pressure displayed Humidity Sensor Humidity sensor / Min.: 0% Max.: 100% Actual cabin humidity displayed Air Mix Servo Targ Pulse (D) Driver side air mix servo motor target pulse / Min.: 0 Max.: 255 MAX. COLD: 92 (pulse) MAX. HOT: 5 (pulse) Air Mix Servo Actual Pulse (D) Driver side air mix servo motor actual pulse / Min.: 0 Max.: 255 MAX. COLD: 92 (pulse) MAX. HOT: 5 (pulse) Air Mix Servo Targ Pulse (P) Passenger side air mix servo motor target pulse / Min.: 0 Max.: 255 MAX. COLD: 6 (pulse) MAX. HOT: 93 (pulse) Air Mix Servo Actual Pulse (P) Passenger side air mix servo motor actual pulse / Min.: 0 Max.: 255 MAX. COLD: 6 (pulse) MAX. HOT: 93 (pulse) Air Outlet Servo Pulse (D) Air outlet servo motor target pulse / Min.: 0 Max.: 255 FACE: 47 (pulse) B/L: 37 (pulse) FOOT: 18 or 23 (pulse) FOOT/DEF: 9 (pulse) DEF: 5 (pulse) Air Outlet Servo Actu Pulse (D) Air outlet servo motor actual pulse / Min.: 0 Max.: 255 FACE: 47 (pulse) B/L: 37 (pulse) FOOT: 18 or 23 (pulse) FOOT/DEF: 9 (pulse) DEF: 5 (pulse) Air Inlet Damper Targ Pulse Air inlet servo motor target pulse / Min.: 0 Max.: 255 RECIRCULATION: 19 (pulse) FRESH: 7 (pulse) Air Inlet Damper Actual Pulse Air inlet servo motor actual pulse / Min.: 0 Max.: 255 RECIRCULATION: 19 (pulse) FRESH: 7 (pulse) Compressor Speed Compressor speed / Min.: 0 rpm Max.: 65535 rpm Actual rotation speed in the range between 0 rpm and 7500 rpm displayed Compressor Target Speed Compressor target speed / Min.: 0 rpm Max.: 65535 rpm Actual rotation speed in the range between 0 rpm and 7500 rpm displayed ECO Switch ECO MODE switch / OFF or ON OFF: ECO MODE switch off ON: ECO MODE switch on Pls Servo Test Sts Pulse servo motor test status / Move, Comp, Error, Stop Move: Servo motor now testing Comp: Servo motor test completed normally Error: Servo motor test completed abnormally Stop: Servo motor test interrupted Compressor Drive Check Compressor drive check / OK or NG NG: Compressor does not drive OK: Compressor drives Number of Trouble Codes Number of trouble codes / Min.: 0 Max.: 255 Number of DTCs displayed
- ACTIVE TEST HINT: Using the Techstream to perform Active Tests allows relays, VSVs, 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. Turn the power switch off. Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Air Conditioner / Active Test. Check the operation by referring to the table below. AIR CONDITIONER Tester Display Test Part Control Range Blower Motor Blower motor Min.: 0, Max.: 31 Compressor Target Speed Compressor target speed Min.: 0, Max.: 7500 Defogger Relay (Rear) Defogger relay (Rear) OFF, ON Deicer Relay (Front) Deicer relay (Front) OFF, ON Water Pump Water pump relay OFF, ON Electrical Fan Electrical fan OFF, ON Air Mix Servo Targ Pulse (D) Air mix servo motor pulse (D side) Min.: 0, Max.: 255 Air Mix Servo Targ Pulse (P) Air mix servo motor pulse (P side) Min.: 0, Max.: 255 Air Outlet Servo Pulse (D) Air outlet servo motor pulse Min.: 0, Max.: 255 Air Inlet Damper Targ Pulse Air inlet damper target pulse Min.: 0, Max.: 255 Air Purifier Mode Air purifier mode OFF, ON Assist Fan Assist fan Min.: 0, Max.: 31
DIAGNOSTIC TROUBLE CODE CHART
| DTC Code | Detection Item | Trouble Area | Memory | Diagnostic Note | See |
|---|---|---|---|---|---|
| B1411/11 | Room Temperature Sensor Circuit | 1. Room temperature sensor 2. Harness or connector between room temperature sensor and air conditioning amplifier assembly 3. Air conditioning amplifier assembly | Memorized (4 sec. or more) | The air conditioning amplifier assembly stores the DTC of the respective malfunction if it has occurred for the period of time indicated in the brackets. | Refer to DTC B1411/11: Room Temperature Sensor Circuit |
| B1412/12 | Ambient Temperature Sensor Circuit | 1. Ambient temperature sensor 2. Harness or connector between ambient temperature sensor and air conditioning amplifier assembly 3. Air conditioning amplifier assembly | Memorized (4 sec. or more) | The air conditioning amplifier assembly stores the DTC of the respective malfunction if it has occurred for the period of time indicated in the brackets. | Refer to DTC B1412/12: Ambient Temperature Sensor Circuit |
| B1413/13 | Evaporator Temperature Sensor Circuit | 1. Evaporator temperature sensor 2. Air conditioning harness 3. Air conditioning amplifier assembly | Memorized (4 sec. or more) | The air conditioning amplifier assembly stores the DTC of the respective malfunction if it has occurred for the period of time indicated in the brackets. | Refer to DTC B1413/13: Evaporator Temperature Sensor Circuit |
| B1423/23 | Pressure Sensor Circuit | 1. A/C pressure sensor 2. Harness or connector between A/C pressure sensor and air conditioning amplifier assembly 3. Air conditioning amplifier assembly 4. Expansion valve (blocked, stuck) 5. Condenser (blocked, deterioration of cooling capacity due to dirt) 6. Cooler dryer (moisture in the refrigerant cycle cannot be absorbed) 7. Cooling fan system (condenser cannot be cooled down) 8. A/C system (leaks, blocked) | Refer to DTC B1423/23: Pressure Sensor Circuit | ||
| B1441/41 | Air Mix Damper Control Servo Motor Circuit (Passenger Side) | 1. No. 1 air mix control servo motor (air mix control servo motor) 2. Air conditioning harness 3. Air conditioning amplifier assembly | Memorized (30 sec. or more) | The A/C amplifier assembly stores the DTC of the respective malfunction if it has occurred for the period of time indicated in the brackets. | Refer to DTC B1441/41: Air Mix Damper Control Servo Motor Circuit (Passenger Side) |
| B1442/42 | Air Inlet Damper Control Servo Motor Circuit | 1. Air inlet control servo motor 2. Air conditioning harness 3. Air conditioning amplifier assembly | Memorized (30 sec. or more) | The A/C amplifier assembly stores the DTC of the respective malfunction if it has occurred for the period of time indicated in the brackets. | Refer to DTC B1442/42: Air Inlet Damper Control Servo Motor Circuit |
| B1443/43 | Air Outlet Damper Control Servo Motor Circuit | 1. No. 1 air mix control servo motor (air outlet control servo motor) 2. Air conditioning harness 3. Air conditioning amplifier assembly | Memorized (30 sec. or more) | The A/C amplifier assembly stores the DTC of the respective malfunction if it has occurred for the period of time indicated in the brackets. | Refer to DTC B1443/43: Air Outlet Damper Control Servo Motor Circuit |
| B1446/46 | Air Mix Damper Control Servo Motor Circuit (Driver Side) | 1. No. 1 air mix control servo motor (air mix control servo motor) 2. Air conditioning harness 3. Air conditioning amplifier assembly | Memorized (30 sec. or more) | The air conditioning amplifier assembly stores the DTC of the respective malfunction if it has occurred for the period of time indicated in the brackets. | Refer to DTC B1446/46: Air Mix Damper Control Servo Motor Circuit (Driver Side) |
| B1462/62 | Room Humidity Sensor Circuit | 1. Room humidity sensor 2. Harness or connector between room humidity sensor and air conditioning amplifier assembly 3. Air conditioning amplifier assembly | Memorized (20 sec. or more) | The air conditioning amplifier assembly stores the DTC of the respective malfunction if it has occurred for the period of time indicated in the brackets. | Refer to DTC B1462/62: Room Humidity Sensor Circuit |
| B1471/71 | A/C Inverter High Voltage Power Resource System Malfunction | 1. Electric vehicle fuse 2. No. 2 engine wire (harness or connector between compressor with motor assembly and inverter with converter assembly) 3. Compressor with motor assembly 4. Hybrid control system 5. CAN communication system | Memorized | Refer to DTC B1471/71: A/C Inverter High Voltage Power Resource System Malfunction | |
| B1472/72 | A/C Inverter High Voltage Output System Malfunction | 1. Compressor with motor assembly 2. CAN communication system | Memorized | Refer to DTC B1472/72: A/C Inverter High Voltage Output System Malfunction | |
| B1473/73 | A/C Inverter Start-up Signal System Malfunction | 1. Harness or connector between power management control ECU and compressor with motor assembly 2. Compressor with motor assembly 3. Hybrid control system 4. CAN communication system | Refer to DTC B1473/73: A/C Inverter Start-up Signal System Malfunction | ||
| B1474/74 | A/C Inverter Malfunction | 1. Compressor with motor assembly 2. CAN communication system | Memorized | Refer to DTC B1474/74: A/C Inverter Malfunction | |
| B1475/75 | A/C Inverter Cooling / Heating System Malfunction | 1. Cooling fan system 2. Refrigerant volume 3. Compressor with motor assembly 4. CAN communication system | Memorized | Refer to DTC B1475/75: A/C Inverter Cooling / Heating System Malfunction | |
| B1476/76 | A/C Inverter Load System Malfunction | 1. Cooling fan system 2. Refrigerant volume 3. Compressor with motor assembly 4. CAN communication system | Memorized | Refer to DTC B1476/76: A/C Inverter Load System Malfunction | |
| B1477/77 | A/C Inverter Low Voltage Power Resource System Malfunction | 1. Compressor with motor assembly 2. CAN communication system | Memorized | Refer to DTC B1477/77: A/C Inverter Low Voltage Power Resource System Malfunction | |
| B1497/97 | BUS IC Communication Malfunction | 1. Air conditioning harness 2. Air conditioning amplifier assembly | Memorized (10 sec. or more) | The air conditioning amplifier assembly stores the DTC of the respective malfunction if it has occurred for the period of time indicated in the brackets. | Refer to DTC B1497/97: BUS IC Communication Malfunction |
| B1498/98 | Communication Malfunction (A/C Inverter Local) | 1. Harness or connector between power management control ECU and compressor with motor assembly 2. Harness or connector between compressor with motor assembly and body ground 3. Electric vehicle fuse 4. Power management control ECU 5. Compressor with motor assembly 6. No. 2 engine wire (harness or connector between compressor with motor assembly and inverter with converter assembly) 7. CAN communication system 8. Hybrid control system | Memorized | Refer to DTC B1498/98: Communication Malfunction (A/C Inverter Local) | |
| B14A1 | Air Purifier Open Circuit | 1. Plasmacluster (ion generator) 2. Harness or connector between plasmacluster (ion generator) and battery 3. Harness or connector between plasmacluster (ion generator) and battery 4. Harness or connector between plasmacluster (ion generator) and body ground 5. Air conditioning amplifier assembly | Memorized (4 sec. or more) | The air conditioning amplifier assembly stores the DTC of the respective malfunction if it has occurred for the period of time indicated in the brackets. | Refer to DTC B14A1: Air Purifier Open Circuit |
| B14A2 | Driver Side Solar Sensor Short Circuit | 1. Solar sensor 2. Harness or connector between solar sensor and air conditioning amplifier assembly 3. Harness or connector between solar sensor and main body ECU (multiplex network body ECU) 4. Main body ECU (multiplex network body ECU) 5. Air conditioning amplifier assembly | Memorized (4 sec. or more) | The air conditioning amplifier assembly stores the DTC of the respective malfunction if it has occurred for the period of time indicated in the brackets. | Refer to DTC B14A2: Driver Side Solar Sensor Short Circuit |
| B14A3 | Front Passenger Side Solar Sensor Short Circuit | 1. Solar sensor 2. Harness or connector between solar sensor and air conditioning amplifier assembly 3. Harness or connector between solar sensor and main body ECU (multiplex network body ECU) 4. Main body ECU (multiplex network body ECU) 5. Air conditioning amplifier assembly | Memorized (4 sec. or more) | The air conditioning amplifier assembly stores the DTC of the respective malfunction if it has occurred for the period of time indicated in the brackets. | Refer to DTC B14A3: Front Passenger Side Solar Sensor Short Circuit |
| U0100 | Lost Communication with ECM | 1. CAN communication system 2. ECM | Refer to DTC U0100: Lost Communication with ECM; DTC U0101: Lost Communication with TCM; DTC U0131: Lost Communication with Electric Power Steering ECU; DTC U0142: Lost Communication with Main Body ECU; DTC U0155: Lost Communication with Combination Meter; DTC U0293: Lost Communication with HV ECU | ||
| U0101 | Lost Communication with TCM | 1. CAN communication system 2. TCM | Refer to DTC U0100: Lost Communication with ECM; DTC U0101: Lost Communication with TCM; DTC U0131: Lost Communication with Electric Power Steering ECU; DTC U0142: Lost Communication with Main Body ECU; DTC U0155: Lost Communication with Combination Meter; DTC U0293: Lost Communication with HV ECU | ||
| U0131 | Lost Communication with Electric Power Steering ECU | 1. CAN communication system 2. Electric power steering ECU | Refer to DTC U0100: Lost Communication with ECM; DTC U0101: Lost Communication with TCM; DTC U0131: Lost Communication with Electric Power Steering ECU; DTC U0142: Lost Communication with Main Body ECU; DTC U0155: Lost Communication with Combination Meter; DTC U0293: Lost Communication with HV ECU | ||
| U0142 | Lost Communication with Main Body ECU | 1. CAN communication system 2. Main body ECU (multiplex network body ECU) | Refer to DTC U0100: Lost Communication with ECM; DTC U0101: Lost Communication with TCM; DTC U0131: Lost Communication with Electric Power Steering ECU; DTC U0142: Lost Communication with Main Body ECU; DTC U0155: Lost Communication with Combination Meter; DTC U0293: Lost Communication with HV ECU | ||
| U0155 | Lost Communication with Combination Meter | 1. CAN communication system 2. Combination meter | Refer to DTC U0100: Lost Communication with ECM; DTC U0101: Lost Communication with TCM; DTC U0131: Lost Communication with Electric Power Steering ECU; DTC U0142: Lost Communication with Main Body ECU; DTC U0155: Lost Communication with Combination Meter; DTC U0293: Lost Communication with HV ECU | ||
| U0293 | Lost Communication with HV ECU | 1. CAN communication system 2. Power management control ECU | Refer to DTC U0100: Lost Communication with ECM; DTC U0101: Lost Communication with TCM; DTC U0131: Lost Communication with Electric Power Steering ECU; DTC U0142: Lost Communication with Main Body ECU; DTC U0155: Lost Communication with Combination Meter; DTC U0293: Lost Communication with HV ECU |
AIR CONDITIONING SYSTEM
| DTC Code | Detection Item | Trouble Area | Memory | Diagnostic Note | See |
|---|---|---|---|---|---|
| P0AA6-611 | Hybrid Battery Voltage System Isolation Fault | 1. Compressor oil 2. Refrigerant pipe line 3. Compressor with motor assembly 4. CAN communication system | Refer to DTC P0AA6-611: Hybrid Battery Voltage System Isolation Fault |
HYBRID CONTROL SYSTEM