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 Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-551612-S08865931292013051500000) B --> GO TO «LIN COMMUNICATION SYSTEM»(ref-551612-S19663568812013051500000) 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 Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-551537-S08920306892013051500000) B --> GO TO «CAN COMMUNICATION SYSTEM»(ref-551537-S30138961892013051500000) 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 the diagnostic trouble code chart. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-551393-S41659840572013051500000) . NEXT --> Go to step 9
- PROBLEM SYMPTOMS TABLE Refer to Problem Symptoms Table. Refer to «PROBLEM SYMPTOMS TABLE»(ref-551393-S01699272352013051500000) . 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-551393-S18922547002013051500000) Data List / Active Test. Refer to «DATA LIST / ACTIVE TEST»(ref-551393-S21919716952013051500000) Terminals of ECU. Refer to «TERMINALS OF ECU»(ref-551393-S23273889332013051500000) Operation Check. Refer to «OPERATION CHECK»(ref-551393-S19398532012013051500000) (w/ Remote Air Conditioning System)) On-vehicle Inspection Inspection NEXT: Go to next step
- ADJUST, REPAIR OR REPLACE NEXT --> END
Scheme 19
- OPERATION CHECK OF REMOTE AIR CONDITIONING SYSTEM HINT: The remote air conditioning system does not operate unless the required operating conditions are met. Therefore, confirm that the operating conditions are met before performing the inspection. Refer to «SYSTEM DESCRIPTION»(ref-551393-S09072683782013051500000) . Activation Control Check Press and hold the remote A/C switch on the key (electrical transmitter) once for 1 seconds or more to start the air conditioning system. HINT: The wireless door lock system locks all doors before the remote air conditioning system is activated. Operation Check Check that the remote air conditioning system operates for a maximum of 3 minutes. HINT: The operating time differs depending on the HV battery state of charge. Stop Control Check Press the remote A/C switch on the key (electrical transmitter) twice briefly within 3 seconds to stop the remote air conditioning system. HINT: When any of the operating conditions are not met during remote air conditioning system operation, the remote air conditioning system will stop. When 3 minutes have elapsed after the remote air conditioning system was started, the remote air conditioning system will stop. Some operating conditions may result in the remote air conditioning system being stopped before 3 minutes elapses. Operation Check of the Remote A/C Switch on the Key (Electrical Transmitter) NOTE: Use 2 keys (electrical transmitters). Confirm that the wireless door lock functions operate normally. Prepare 2 registered keys (electrical transmitters), and label one of them key (electrical transmitter) A, and the other key (electrical transmitter) B. Operate the remote A/C switch on key (electrical transmitter) A and check that the remote air conditioning system can be operated. Operate the remote A/C switch on key (electrical transmitter) B and check that the remote air conditioning system can be operated. HINT: If the remote air conditioning system is not operated for both keys (electrical transmitters) A and B, the remote air conditioning system may have a malfunction. Refer to «PROBLEM SYMPTOMS TABLE»(ref-551393-S01699272352013051500000) . If the remote air conditioning system is not operated for one of the keys (electrical transmitter) A or B, the key (electrical transmitter) needs to be replaced because a malfunction of the remote A/C switch on the key (electrical transmitter) is suspected.
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 | |
| A/C amplifier | 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 | |
| A/C amplifier | Refer to REMOVAL | |
| Air flow control: No blower control | Blower motor circuit | Refer to Blower Motor Circuit |
| Air conditioning control panel circuit | Refer to Air Conditioning Control Panel Circuit | |
| A/C amplifier | Refer to REMOVAL | |
| Air flow control: Insufficient air flow | Blower motor circuit | Refer to Blower Motor Circuit |
| A/C amplifier | Refer to REMOVAL | |
| The blower motor operates by itself or the motor speed changes arbitrarily (Speed does not change in accordance with automatic or manual control settings)*1 | IG signal circuit | Refer to IG Signal Circuit |
| Solar ventilation ECU | Refer to REMOVAL | |
| Temperature control: No cool air comes out | Refrigerant volume | Refer to ON-VEHICLE INSPECTION - Step 1 |
| Refrigerant pressure | Refer to ON-VEHICLE INSPECTION - Step 2 | |
| Air conditioning pressure sensor circuit | Refer to DTC B1423/23: Pressure Sensor Circuit | |
| Air mix damper control servo motor circuit | 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 | |
| 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 DISASSEMBLY | |
| CAN communication system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING | |
| A/C amplifier | 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 | Refer to DTC B1441/41: Air Mix Damper Control Servo Motor Circuit (Passenger Side) |
| Engine coolant temperature sensor circuit | Refer to DTC P0115: Engine Coolant Temperature Circuit Malfunction; DTC P0117: Engine Coolant Temperature Circuit Low Input; DTC P0118: Engine Coolant Temperature Circuit High Input | |
| 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 | |
| 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 | |
| PTC heater circuit*2 | Refer to PTC Heater Circuit | |
| CAN communication system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING | |
| Radiator unit sub-assembly | Refer to DISASSEMBLY | |
| A/C amplifier | Refer to REMOVAL | |
| ECM | 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 - Step 1 |
| Refrigerant pressure | Refer to ON-VEHICLE INSPECTION - Step 2 | |
| Solar sensor circuit | Refer to DTC B14A2: Driver Side Solar Sensor Short Circuit | |
| 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 | |
| Evaporator temperature sensor circuit | Refer to DTC B1413/13: Evaporator Temperature Sensor Circuit | |
| Air mix damper control servo motor circuit | 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 | |
| PTC heater circuit*2 | Refer to PTC Heater Circuit | |
| Air conditioning control panel circuit | Refer to Air Conditioning Control Panel Circuit | |
| Radiator unit sub-assembly | Refer to DISASSEMBLY | |
| Expansion valve | Refer to DISASSEMBLY | |
| CAN communication system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING | |
| A/C amplifier | Refer to REMOVAL | |
| No. 2 engine wire | Refer to REMOVAL | |
| Compressor with motor assembly | Refer to REMOVAL | |
| ECM | 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 | 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 | |
| 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 | Refer to DTC B14A2: Driver Side Solar Sensor Short Circuit | |
| Air conditioning control panel circuit | Refer to Air Conditioning Control Panel Circuit | |
| A/C amplifier | 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 | |
| A/C amplifier | 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 | |
| A/C amplifier | Refer to REMOVAL | |
| Heater performance is low (engine is stopped)*2 | PTC heater circuit | Refer to PTC Heater Circuit |
| A/C amplifier | Refer to REMOVAL | |
| ECO MODE switch indicator does not come on (ECO MODE switch does not operate) | ECO switch circuit | Refer to ECO Switch Circuit |
| A/C amplifier | Refer to REMOVAL | |
| Micro dust and pollen filter mode does not operate (A/C system is operating normally) | Air inlet damper control servo motor circuit | Refer to DTC B1442/42: Air Inlet Damper Control Servo Motor Circuit |
| Air outlet damper control servo motor circuit | Refer to DTC B1443/43: Air Outlet Damper Control Servo Motor Circuit | |
| Blower motor circuit | Refer to Blower Motor Circuit | |
| Air conditioning control panel circuit | Refer to Air Conditioning Control Panel Circuit | |
| A/C amplifier | Refer to REMOVAL | |
| Unable to control A/C with the steering pad switch | Steering pad switch circuit | Refer to Steering Pad Switch Circuit |
| Air conditioning control panel circuit | Refer to Air Conditioning Control Panel Circuit | |
| A/C amplifier | Refer to REMOVAL | |
| Diagnostic trouble codes (DTCs) are not recorded. Set mode is cleared when power switch is off. | Back-up power source circuit | Refer to Back-up Power Source Circuit |
| A/C amplifier | Refer to REMOVAL |
AIR CONDITIONING SYSTEM
| Symptom | Suspected Area | See |
|---|---|---|
| The remote air conditioning system does not operate when the remote A/C switch on the key (electrical transmitter) is pressed. (air conditioning system is normal) | Wireless door lock control system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING |
| Data List (FL Door Courtesy, FR Door Courtesy, RL Door Courtesy SW, RR Door Courtesy SW, Back Door Courtesy SW) | Refer to DATA LIST / ACTIVE TEST | |
| Data List (Hood Courtesy SW) | Refer to DATA LIST / ACTIVE TEST | |
| Data List (Start Switch1, Start Switch2) | Refer to DATA LIST / ACTIVE TEST | |
| Data List (IG SW, ACC SW) | Refer to DATA LIST / ACTIVE TEST | |
| Data List (FL Door Lock Pos, FR Door Lock Pos, RL-Door Lock Pos SW, RR-Door Lock Pos SW) | Refer to DATA LIST / ACTIVE TEST | |
| Operation check (key (electrical transmitter)) | Refer to OPERATION CHECK | |
| Use simulation method to check | Refer to HOW TO PROCEED WITH TROUBLESHOOTING | |
| The remote air conditioning system does not operate even though a wireless door lock is performed when the remote A/C switch on the key (electrical transmitter) is pressed. (air conditioning system is normal) | Data List (FL Door Courtesy, FR Door Courtesy, RL Door Courtesy SW, RR Door Courtesy SW, Back Door Courtesy SW) | Refer to DATA LIST / ACTIVE TEST |
| Data List (Hood Courtesy SW) | Refer to DATA LIST / ACTIVE TEST | |
| Data List (Start Switch1, Start Switch2) | Refer to DATA LIST / ACTIVE TEST | |
| Data List (IG SW, ACC SW) | Refer to DATA LIST / ACTIVE TEST | |
| Data List (Stop Light Switch) | Refer to DATA LIST / ACTIVE TEST | |
| Data List (Shift Position) | Refer to DATA LIST / ACTIVE TEST | |
| Use simulation method to check | Refer to HOW TO PROCEED WITH TROUBLESHOOTING | |
| The remote air conditioning system stops operating shortly after the system starts. | Operation check | Refer to OPERATION CHECK |
| Use simulation method to check | Refer to HOW TO PROCEED WITH TROUBLESHOOTING | |
| The remote air conditioning system starts operating by itself. | Use simulation method to check | Refer to HOW TO PROCEED WITH TROUBLESHOOTING |
| Operation check (activation control, stop control, key (electrical transmitter)) | Refer to OPERATION CHECK | |
| Certification ECU | Refer to REMOVAL | |
| A/C amplifier | Refer to REMOVAL | |
| Power management control ECU | Refer to REMOVAL | |
| The remote air conditioning system cannot be stopped using the remote A/C switch on the key (electrical transmitter). | Customize (Stop Pre A/C) | Refer to CUSTOMIZE PARAMETERS |
| Operation check (stop control, key (electrical transmitter)) | Refer to OPERATION CHECK | |
| A/C amplifier | Refer to REMOVAL | |
| Power management control ECU | Refer to REMOVAL | |
| Certification ECU | Refer to REMOVAL |
REMOTE AIR CONDITIONING SYSTEM*3
- *1: w/ Solar Ventilation System
- *2: w/ PTC Heater Assembly
- *3: w/ Remote Air Conditioning System
Scheme 20
Scheme 21
Scheme 22
Scheme 23
- A/C AMPLIFIER HINT: Check from the rear of the connector while it is connected to the A/C amplifier. Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition L17-1 (IG+) - L17-14 (GND) B - W-B Power source (IG) Power switch on (IG) 11 to 14 V L17-1 (IG+) - L17-14 (GND) B - W-B Power source (IG) Power switch off Below 1 V L17-5 (TAM) - L17-13 (SG-2) BE - G Ambient temperature sensor signal Power switch on (IG) Ambient temperature: 25°C (77°F) 1.35 to 1.75 V L17-5 (TAM) - L17-13 (SG-2) BE - G Ambient temperature sensor signal Power switch on (IG) Ambient temperature: 40°C (104°F) 0.9 to 1.2 V L17-9 (PRE) - L17-13 (SG-2) L - G A/C pressure sensor signal Power switch on (READY) A/C system operating Refrigerant pressure: Abnormal pressure (more than 3140 kPa (32.0 kgf/cm 2, 455 psi)) 4.84 V or higher L17-9 (PRE) - L17-13 (SG-2) L - G A/C pressure sensor signal Power switch on (READY) A/C system operating Refrigerant pressure: Abnormal pressure (less than 196 kPa (2.0 kgf/cm 2, 28 psi)) Below 0.73 V L17-9 (PRE) - L17-13 (SG-2) L - G A/C pressure sensor signal Power switch on (READY) 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 L17-10 (S5-3) - L17-13 (SG-2) B - G Power supply for A/C pressure sensor Power switch on (IG) A/C switch on 4.75 to 5.25 V L17-10 (S5-3) - L17-13 (SG-2) B - G Power supply for A/C pressure sensor Power switch on (IG) A/C switch off Below 1 V L17-11 (CANH) Y CAN communication system - - L17-12 (CANL) BR CAN communication system - - L17-13 (SG-2) - Body ground G - Body ground Ground for A/C pressure sensor, ambient temperature sensor Always Below 1 V L17-14 (GND) - Body ground W-B - Body ground Ground for main power supply Always Below 1 V L17-15 (ECOS) - L17-14 (GND) G - W-B ECO MODE switch signal Power switch on (IG) ECO MODE switch off 11 to 14 V L17-15 (ECOS) - L17-14 (GND) G - W-B ECO MODE switch signal Power switch on (IG) ECO MODE switch on Below 1 V L17-16 (PTC3) - L17-14 (GND)*1 BR - W-B PTC heater operation signal Engine is running (1250 RPM or higher) Temperature setting: MAX. HOT Ambient temperature: 10°C (50°F) or lower Engine coolant temperature: 65°C (149°F) or lower Light control switch off Blower switch on 11 to 14 V L17-18 (PTC1) - L17-14 (GND)*1 W - W-B PTC heater operation signal Engine is running (1250 RPM or higher) Temperature setting: MAX. HOT Ambient temperature: 10°C (50°F) or lower Engine coolant temperature: 75°C (167°F) or lower Light control switch off Blower switch on 11 to 14 V L17-21 (B) - L17-14 (GND) Y - W-B Power source (Back-up) Power switch off 11 to 14 V L17-23 (BLW) - L17-14 (GND) W - W-B Blower motor speed control signal Power switch on (IG) Blower switch LO Pulse generation (See waveform 1 see scheme 19 ) L17-25 (PVSW) - L17-14 (GND)*2 P - W-B Solar ventilation switch signal Solar ventilation switch off 4.5 to 5.5 V L17-25 (PVSW) - L17-14 (GND)*2 P - W-B Solar ventilation switch signal Solar ventilation switch on Below 1 V L17-26 (SSLR) - L17-14 (GND)*2 L - W-B Solar ventilation ECU status signal Power switch on (IG) SBI terminal: 7 V or higher Solar ventilation system: off Pulse generation (See waveform 2 (Scheme 19) ) L17-27 (IDH) - L17-14 (GND)*1 L - W-B Inverter with converter assembly current over signal Power switch on (IG) Pulse generation L17-29 (TR) - L17-34 (SG-1) B - W Room temperature sensor signal Power switch on (IG) Cabin temperature: 25°C (77°F) 1.8 to 2.2 V L17-29 (TR) - L17-34 (SG-1) B - W Room temperature sensor signal Power switch on (IG) Cabin temperature: 40°C (104°F) 1.2 to 1.6 V L17-33 (TS) - L17-14 (GND) BR - W-B Solar sensor signal Power switch on (IG) Solar sensor subjected to electric light 0.8 to 4.3 V L17-33 (TS) - L17-14 (GND) BR - W-B Solar sensor signal Power switch on (IG) Solar sensor covered with a cloth Below 0.8 V L17-34 (SG-1) - Body ground W - Body ground Ground for room temperature sensor Always Below 1 V L17-37 (LIN1) - L17-14 (GND) V - W-B LIN communication signal Power switch on (IG) Pulse generation L17-38 (PTC2) - L17-14 (GND)*1 B - W-B PTC heater operation signal Engine is running (1250 RPM or higher) Temperature setting: MAX. HOT Ambient temperature: 10°C (50°F) or lower Engine coolant temperature: 65°C (149°F) to 70°C (158°F) Light control switch off Blower switch on 11 to 14 V z11-2 (BUS G) - Body ground - Ground for BUS IC Always Below 1 V z11-3 (BUS) - z11-2 (BUS G) - BUS IC control signal Power switch on (IG) Pulse generation z11-4 (B BUS) - z11-2 (BUS G) - Power supply for BUS IC Power switch off 11 to 14 V z11-5 (SGA) - Body ground - Ground for evaporator temperature sensor Always Below 1 V z11-6 (TEA) - z11-5 (SGA) - A/C evaporator temperature sensor signal Power switch on (IG) Evaporator temperature: 0°C (32°F) 1.7 to 2.1 V z11-6 (TEA) - z11-5 (SGA) - A/C evaporator temperature sensor signal Power switch on (IG) Evaporator temperature: 15°C (59°F) 0.9 to 1.3 V *1: w/ PTC Heater Assembly *2: w/ Solar Ventilation System Waveform 1: Item Content Terminal No. L17-23 (BLW) - L17-14 (GND) Tool Setting 1 V/DIV., 500 μs/DIV. Vehicle Condition Power switch on (IG) Blower switch LO HINT: The waveform varies with the blower speed. Waveform 2: Item Content Terminal No. L17-26 (SSLR) - L17-14 (GND) Tool Setting 1 V/DIV., 100 ms/DIV. Vehicle Condition Power switch on (IG) SBI terminal: 7 V or higher Solar ventilation system: off HINT: The waveform varies with the communication content.
- A/C CONTROL ASSEMBLY HINT: Check from the rear of the connector while it is connected to the A/C control assembly. Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition L152-2 (TX+) - L152-8 (GND) V - W-B LIN communication signal Power switch on (IG) Pulse generation L152-3 (SWO) - L152-8 (GND) L - W-B Steering pad switch assembly signal No switch pushed --> R/F switch pushed --> TEMP+ switch pushed --> TEMP- switch pushed 4.44 to 5.43 V --> 1.19 to 1.49 V --> 2.09 to 2.54 V --> 3.2 to 3.88 V L152-5 (IG+) - L152-8 (GND) B - W-B Power source (IG) Power switch off Below 1 V L152-5 (IG+) - L152-8 (GND) B - W-B Power source (IG) Power switch on (IG) 11 to 14 V L152-6 (ILL+) - L152-7 (ILL-) G - W-B Light control switch signal Light control switch off Below 1 V L152-6 (ILL+) - L152-7 (ILL-) G - W-B Light control switch signal Light control switch tail or head 11 to 14 V L152-8 (GND) - Body ground W-B - Body ground Ground for front A/C control assembly Always Below 1 V
Scheme 24
Scheme 25
Scheme 26
Scheme 27
Scheme 28
Scheme 29
- DESCRIPTION Air conditioning system data and the 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-551389-S40560400582013051500000) .
- 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 for at least 5 seconds. Turn the power switch on (IG) while pressing the A/C control assembly "AUTO" switch and "Recirculation/Fresh" switch simultaneously. Hold both switches until the indicator check screen appears. TEXT IN ILLUSTRATION *1 A/C Control Assembly 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 A/C Control Assembly
- SENSOR CHECK (DTC CHECK) Start the hybrid system 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 A/C control assembly. 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-551393-S41659840572013051500000) . When there are no problems, DTC 00 is output. As an example, the illustration shows that display DTC 12 is output. TEXT IN ILLUSTRATION *1 A/C Control Assembly *2 Diagnostic Trouble Code (DTC) If the DTCs are difficult to read because they change automatically, press the "MODE" switch to display the DTCs one at a time so that they can be read easily. The DTCs are displayed step by step each time the "MODE" switch is pressed. HINT: Press the "OFF" switch to finish panel diagnosis. TEXT IN ILLUSTRATION *1 A/C Control Assembly Clear the DTC During the sensor check, press the "FRONT DEF" switch and "MODE" switch simultaneously. TEXT IN ILLUSTRATION *1 A/C Control Assembly
DTC CHECK / CLEAR
- DTC CHECK USING TECHSTREAM Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Air Conditioner / Trouble Codes. Check for DTCs.
- DTC CLEAR USING TECHSTREAM Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Air Conditioner / Trouble Codes. Clear the DTCs by pressing the YES button on the Techstream display.
DATA LIST / ACTIVE TEST
- DATA LIST 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. 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 Diagnostic Note Room Temperature Sensor Room temperature sensor / Min.: -6.50°C (20.30°F) Max.: 57.25°C (135.05°F) Actual cabin temperature displayed - Ambient Temp Sensor Ambient temperature sensor / Min.: -23.30°C (-9.94°F) Max.: 65.95°C (150.71°F) Actual ambient temperature displayed - Adjusted Ambient Temp Adjusted ambient temperature / Min.: -30.80°C (-23.44°F) Max.: 50.80°C (123.44°F) - - Evaporator Fin Thermistor Evaporator temperature sensor / Min.: -29.70°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) Solar sensor / Min.: 0 Max.: 255 Solar sensor value increases as brightness increases - Engine Coolant Temp Engine coolant temperature sensor / Min.: 1.30°C (34.34°F) Max.: 90.55°C (194.99°F) Actual engine coolant temperature displayed - Set Temperature (D Side) Set temperature / Min.: MAX COLD Max.: MAX HOT 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 - Air Mix Servo Targ Pulse(D) Air mix servo motor target pulse / Min.: 0 Max.: 255 MAX. COLD: 6 (pulse) MAX. HOT: 93 (pulse) - Air Mix Servo Actual Pulse(D) 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: 17(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: 17 (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) - Electric Heater Count*1 Maximum heater operation level / Min.: 0 Max.: 3 Maximum possible operation level of quick heater assembly displayed - Electric Heater Active Level*1 Actual heater operation level / Min.: 0 Max.: 2 Actual operation level of quick heater assembly displayed - Compressor Speed Compressor speed / Min.: 0 RPM Max.: 65535 RPM Displays actual rotation speed in the range between 0 RPM and 10000 RPM - Compressor Target Speed Compressor target speed / Min.: 0 RPM Max.: 65535 RPM Displays actual rotation speed in the range between 0 RPM and 10000 RPM - Shift Set Temperature Shift set temperature / 2C decr, 1C decr, Normal, 1C incr, 2C incr Customized value displayed - Air Inlet Mode*3 Air inlet mode / Auto or Manual Customized value displayed - Compressor Mode Compressor mode / Auto or Manual Customized value displayed - Noise and Vibration Reduction Noise and vibration reduction / OFF or ON Customized value displayed - ECO MODE Cancel ECO MODE Cancel / OFF or ON Customized value displayed - ECO Switch ECO MODE switch / OFF or ON OFF: ECO MODE switch off ON: ECO MODE switch on - Foot/DEF Auto Mode Foot/DEF Auto Mode / ON or OFF Customized value displayed - Foot/DEF Auto Blow Up Foot/DEF Auto blower speed increase / ON or OFF Customized value displayed - Ambient Temperature Shift Ambient temperature shift / 3C decr, 2C decr, 1C decr, Normal, 1C incr, 2C incr, 3C incr Customized value displayed - Compressor Drive Check Compressor drive check / OK or NG NG: Compressor does not drive OK: Compressor drives - Solar Ventilation Switch*2 Solar ventilation switch (switch recognition value at A/C amplifier side) / OFF or ON OFF: Solar ventilation switch off ON: Solar ventilation switch on - Number of Trouble Codes Number of trouble codes / Min.: 0 Max.: 255 Number of DTCs displayed - *1: w/ PTC Heater Assembly *2: w/ Solar Ventilation System *3: for Korea and Mexico Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Main Body / Data List. Check the value(s) by referring to the table below. MAIN BODY Tester Display Measurement Item/Range Normal Condition Diagnostic Note Hood Courtesy SW*4 Engine hood courtesy signal / OFF or ON ON: Engine hood open OFF: Engine hood closed - *4: w/ Remote Air Conditioning System
- ACTIVE TEST 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. 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 Diagnostic Note Blower Motor Blower motor Min.: 0, Max.: 31 - Compressor Target Speed Compressor with motor assembly Min.: 0, Max.: 10000 - Water Pump Engine water pump OFF or ON - Electrical Fan Electrical fan OFF or ON - Heater Active Level*1 Heater active level Min.: 0, Max.: 3 - Defogger Relay (Rear) Defogger relay (Rear) OFF or ON - Mirror Heater Relay (Front) Mirror heater relay (Front) OFF or ON - Air Mix Servo Targ Pulse(D) Air mix servo motor pulse 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 - *1: w/ PTC Heater Assembly
DIAGNOSTIC TROUBLE CODE CHART
HINT
When the air conditioning system functions properly, DTC 00 is output.
| DTC Code | Detection Item | Trouble Area | Memory*3 | See |
|---|---|---|---|---|
| B1411/11*1 | Room Temperature Sensor Circuit | 1. Room temperature sensor 2. Harness or connector between room temperature sensor and A/C amplifier 3. A/C amplifier | Memorized (4 sec. or more) | Refer to DTC B1411/11: Room Temperature Sensor Circuit |
| B1412/12*2 | Ambient Temperature Sensor Circuit | 1. Ambient temperature sensor 2. Harness or connector between ambient temperature sensor and A/C amplifier 3. A/C amplifier | Memorized (4 sec. or more) | Refer to DTC B1412/12: Ambient Temperature Sensor Circuit |
| B1413/13 | Evaporator Temperature Sensor Circuit | 1. Evaporator temperature sensor 2. Air conditioning harness 3. A/C amplifier | Memorized (4 sec. or more) | 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 A/C amplifier 3. A/C amplifier 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. Air mix control servo motor 2. Air conditioning harness 3. A/C amplifier | Memorized (30 sec. or more) | 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. A/C amplifier | Memorized (30 sec. or more) | Refer to DTC B1442/42: Air Inlet Damper Control Servo Motor Circuit |
| B1443/43 | Air Outlet Damper Control Servo Motor Circuit | 1. Air outlet control servo motor 2. Air conditioning harness 3. A/C amplifier | Memorized (30 sec. or more) | Refer to DTC B1443/43: Air Outlet Damper Control Servo Motor 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. Power management control ECU 4. Hybrid control system 5. 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. Refrigerant volume 2. Compressor with motor assembly 3. Cooling fan system 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. A/C amplifier | Memorized (10 sec. or more) | 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, compressor with motor assembly and body ground 2. Power management control ECU 3. Compressor with motor assembly 4. No. 2 engine wire (harness or connector between compressor with motor assembly and inverter with converter assembly) 5. Electric vehicle fuse 6. CAN communication system 7. Hybrid control system | Memorized | Refer to DTC B1498/98: Communication Malfunction (A/C Inverter Local) |
| B14A2 | Driver Side Solar Sensor Short Circuit | 1. Solar sensor (automatic light control sensor) 2. Harness or connector between solar sensor (automatic light control sensor) and A/C amplifier 3. Harness or connector between solar sensor (automatic light control sensor) and main body ECU 4. Main body ECU 5. A/C amplifier | Memorized (4 sec. or more) | Refer to DTC B14A2: Driver 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 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 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 | Refer to DTC U0100: Lost Communication with ECM; 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 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 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 | 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
- *1: If the cabin temperature is approximately -18.6°C (-1.48°F) or lower, DTC B1411/11 may be output even though the system is normal.
- *2: If the ambient temperature is approximately -52.9°C (-63.22°F) or lower, DTC B1412/12 may be output even though the system is normal.
- *3: The A/C amplifier stores the DTC of the respective malfunction if it has occurred for the period of time indicated in the brackets.