Air Conditioning System (Diagnostic Codes & Circuit Tests): Other Lexus LX J200 рестайлинг

PROCEDURE

1. READ VALUE USING TECHSTREAM (FRONT ROOM TEMPERATURE SENSOR) Use the Data List to check if the front room temperature sensor is functioning properly. Refer to «DATA LIST / ACTIVE TEST [01/2012 - ]»(ref-603931-S00063631292014031100000) . AIR CONDITIONER Tester Display Measurement Item/Range Normal Condition Diagnostic Note Room Temperature Sensor Front room temperature sensor / Min.: -6.5°C (20.3°F) Max.: 57.25°C (135.05°F) Actual room temperature for front seat displayed Open in the circuit: -6.5°C (20.3°F). Short in the circuit: 57.25°C (135.05°F). OK The display is as specified in the normal condition. NG --> See step 2 OK --> See step 4
2. INSPECT FRONT ROOM TEMPERATURE SENSOR Remove the front room temperature sensor. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S24340715572014031100000) . Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 1 - 2 10°C (50°F) 3.00 to 3.73 kohms 15°C (59°F) 2.45 to 2.88 kohms 20°C (68°F) 1.95 to 2.30 kohms 25°C (77°F) 1.60 to 1.80 kohms 30°C (86°F) 1.28 to 1.47 kohms 35°C (95°F) 1.00 to 1.22 kohms 40°C (104°F) 0.80 to 1.00 kohms 45°C (113°F) 0.65 to 0.85 kohms 50°C (122°F) 0.50 to 0.70 kohms 55°C (131°F) 0.44 to 0.60 kohms 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 in illustration). NG --> See step 5 OK: Go to next step
3. CHECK HARNESS AND CONNECTOR (ROOM TEMPERATURE SENSOR - AIR CONDITIONING AMPLIFIER) Disconnect the E32 sensor connector. Disconnect the E35 amplifier connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition E32-1 - E35-9 (TR) Always Below 1 ohms E32-2 - E35-32 (SG-1) E35-9 (TR) - Body ground Always 10 kohms or higher E35-32 (SG-1) - Body ground E35-9 (TR) - E35-32 (SG-1) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 4
4. REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S36487855842014031100000)
5. REPLACE FRONT ROOM TEMPERATURE SENSOR. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S24340715572014031100000)

1. READ VALUE USING TECHSTREAM (AMBIENT TEMPERATURE SENSOR) Use the Data List to check if the ambient temperature sensor is functioning properly. Refer to «DATA LIST / ACTIVE TEST [01/2012 - ]»(ref-603931-S00063631292014031100000) . AIR CONDITIONER Tester Display Measurement Item/Range Normal Condition Diagnostic Note Ambient Temp Sensor Ambient temperature sensor / Min: -23.3°C (-9.94°F) Max: 65.95°C (150.71°F) Actual ambient temperature displayed Open in the circuit: -23.3°C (-9.94°F). Short in the circuit: 65.95°C (150.71°F). OK The display is as specified in the normal condition. NG --> See step 2 OK --> See step 6
2. INSPECT AMBIENT TEMPERATURE SENSOR Remove the ambient temperature sensor. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S15558060002014031100000) . Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 1 - 2 10°C (50°F) 3.00 to 3.73 kohms 15°C (59°F) 2.45 to 2.88 kohms 20°C (68°F) 1.95 to 2.30 kohms 25°C (77°F) 1.60 to 1.80 kohms 30°C (86°F) 1.28 to 1.47 kohms 35°C (95°F) 1.00 to 1.22 kohms 40°C (104°F) 0.80 to 1.00 kohms 45°C (113°F) 0.65 to 0.85 kohms 50°C (122°F) 0.50 to 0.70 kohms 55°C (131°F) 0.44 to 0.60 kohms 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 in illustration). NG --> See step 5 OK: Go to next step
3. CHECK HARNESS AND CONNECTOR (AMBIENT TEMPERATURE SENSOR - AIR CONDITIONING AMPLIFIER) Disconnect the A14 sensor connector. Disconnect the E35 amplifier connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition A14-1 - E35-10 (TAM) Always Below 1 ohms A14-2 - E35-16 (SG-2) E35-10 (TAM) - Body ground Always 10 kohms or higher E35-16 (SG-2) - Body ground E35-10 (TAM) - E35-16 (SG-2) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 4
4. REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S36487855842014031100000)
5. REPLACE AMBIENT TEMPERATURE SENSOR. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S15558060002014031100000)
6. REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S36487855842014031100000)

1. READ VALUE USING TECHSTREAM (NO. 1 COOLER THERMISTOR) Use the Data List to check if the No. 1 cooler thermistor is functioning properly. Refer to «DATA LIST / ACTIVE TEST [01/2012 - ]»(ref-603931-S00063631292014031100000) . AIR CONDITIONER Tester Display Measurement Item/Range Normal Condition Diagnostic Note Evaporator Fin Thermistor No. 1 cooler thermistor / Min.: -29.7°C (-21.46°F) Max.: 59.55°C (139.19°F) Actual evaporator temperature displayed Open in the circuit: -29.7°C (-21.46°F). Short in the circuit: 59.55°C (139.19°F). OK The display is as specified in the normal condition. NG --> See step 2 OK --> See step 4
2. INSPECT NO. 1 COOLER THERMISTOR Remove the No. 1 cooler thermistor. Refer to «DISASSEMBLY [01/2012 - ]»(ref-603919-S40855695462014031100000) . Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 1 - 2 -10°C (14°F) 7.30 to 9.10 kohms -5°C (23°F) 5.65 to 6.95 kohms 0°C (32°F) 4.40 to 5.35 kohms 5°C (41°F) 3.40 to 4.15 kohms 10°C (50°F) 2.70 to 3.25 kohms 15°C (59°F) 2.14 to 2.58 kohms 20°C (68°F) 1.71 to 2.05 kohms 25°C (77°F) 1.38 to 1.64 kohms 30°C (86°F) 1.11 to 1.32 kohms NOTE: Even slightly touching the sensor may change the resistance value. Be sure to hold the connector of the sensor. When measuring, the sensor temperature must be the same as the ambient temperature. HINT: As the temperature increases, the resistance decreases (See the graph in illustration). NG --> See step 3 OK --> See step 5
3. REPLACE NO. 1 COOLER THERMISTOR. Refer to «DISASSEMBLY [01/2012 - ]»(ref-603919-S40855695462014031100000)
4. REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S36487855842014031100000)
5. REPLACE AIR CONDITIONING HARNESS ASSEMBLY. Refer to «DISASSEMBLY [01/2012 - ]»(ref-603919-S42724894142014031100000)

1. INSPECT FUSE (A/C IG) Remove the A/C IG fuse from the cowl side junction block LH. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition A/C IG fuse Always Below 1 ohms NG --> REPLACE FUSE OK: Go to next step
2. READ VALUE USING TECHSTREAM (SMOG VENTILATION SENSOR) Use the Data List to check if the smog ventilation sensor is functioning properly. Refer to «DATA LIST / ACTIVE TEST [01/2012 - ]»(ref-603931-S00063631292014031100000) . AIR CONDITIONER Tester Display Measurement Item / Range Normal Condition Diagnostic Note Emission Gas Sensor Smog ventilation sensor / Min.: 0, Max.: 255 Decreases as the gas amount increases - OK The display is as specified in the normal condition. NG --> See step 3 OK --> See step 9
3. CHECK HARNESS AND CONNECTOR (SMOG VENTILATION SENSOR - BODY GROUND) Disconnect the A45 smog ventilation sensor connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition A45-6 (E) - Body ground Always Below 1 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
4. CHECK HARNESS AND CONNECTOR (SMOG VENTILATION SENSOR - BATTERY) Disconnect the A45 smog ventilation sensor connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition A45-3 (IG) - Body ground Engine switch on (IG) 11 to 14 V NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
5. INSPECT SMOG VENTILATION SENSOR Remove the smog ventilation sensor. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S34157427132014031100000) . After applying battery voltage to terminals 3 (IG) and 6 (E) for more than 30 seconds, measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 1 (SG) - 2 (DGS) 15 to 25°C (59 to 77°F) 15 to 40 kohms HINT: When the sensor is exposed to the exhaust gas, the resistance decreases. NG --> See step 8 OK: Go to next step
6. CHECK HARNESS AND CONNECTOR (SMOG VENTILATION SENSOR - AIR CONDITIONING AMPLIFIER) Disconnect the A45 smog ventilation sensor connector. Disconnect the E35 amplifier connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition A45-1 (SG) - E35-30 (SG-4) Always Below 1 ohms A45-2 (DGS) - E35-23 (DGS) E35-30 (SG-4) - Body ground Always 10 kohms or higher E35-23 (DGS) - Body ground E35-30 (SG-4) - E35-23 (DGS) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 7
7. REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S36487855842014031100000)
8. REPLACE SMOG VENTILATION SENSOR. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S34157427132014031100000)
9. REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S36487855842014031100000)

1. READ VALUE USING TECHSTREAM (REAR ROOM TEMPERATURE SENSOR LH) Use the Data List to check if the rear room temperature sensor LH is functioning properly. Refer to «DATA LIST / ACTIVE TEST [01/2012 - ]»(ref-603931-S00063631292014031100000) . AIR CONDITIONER Tester Display Measurement Item/Range Normal Condition Diagnostic Note Room Temp Sensor (Rear) Rear room temperature sensor LH / Min.: -6.5°C (20.3°F) Max.: 57.25°C (135.05°F) Actual rear room temperature for LH seat displayed Open in the circuit: -6.5°C (20.3°F). Short in the circuit: 57.25°C (135.05°F). OK The display is as specified in the normal condition. NG --> See step 2 OK --> See step 5
2. INSPECT REAR ROOM TEMPERATURE SENSOR LH Remove the rear room temperature sensor LH. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S33015171232014031100000) . Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 1 - 2 10°C (50°F) 3.00 to 3.73 kohms 15°C (59°F) 2.45 to 2.88 kohms 20°C (68°F) 1.95 to 2.30 kohms 25°C (77°F) 1.60 to 1.80 kohms 30°C (86°F) 1.28 to 1.47 kohms 35°C (95°F) 1.00 to 1.22 kohms 40°C (104°F) 0.80 to 1.00 kohms 45°C (113°F) 0.65 to 0.85 kohms 50°C (122°F) 0.50 to 0.70 kohms 55°C (131°F) 0.44 to 0.60 kohms 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. HINT: As the temperature increases, the resistance decreases (See the graph in illustration). NG --> See step 6 OK: Go to next step
3. CHECK HARNESS AND CONNECTOR (REAR ROOM TEMPERATURE SENSOR LH - AIR CONDITIONING AMPLIFIER) Disconnect the z38 sensor connector. Disconnect the E35 amplifier connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition z38-1 - E35-18 (TR) Always Below 1 ohms z38-2 - E35-2 (SG-6) E35-18 (TR) - Body ground Always 10 kohms or higher E35-2 (SG-6) - Body ground E35-18 (TR) - E35-2 (SG-6) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 4
4. REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S36487855842014031100000)
5. REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S36487855842014031100000)
6. REPLACE REAR ROOM TEMPERATURE SENSOR LH. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S33015171232014031100000)

1. CHECK CAN COMMUNICATION SYSTEM Use the Techstream to check if the CAN communication system is functioning normally. Refer to «DIAGNOSIS SYSTEM [01/2012 - ]»(ref-603947-S06484156272014031100000) . RESULT Result Proceed to CAN DTC is not output A CAN DTC is output B B --> See step 5 A: Go to next step
2. INSPECT AIR CONDITIONING AMPLIFIER ASSEMBLY Remove the air conditioning amplifier assembly with its connectors still connected. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S36487855842014031100000) . Measure the waveform of the connector. MEASUREMENT CONDITION Item Content Terminal No. (Symbol) E35-28 (LOCK) - E35-29 (SG-5) Tool Setting 200 mV/DIV., 10 ms/DIV. Condition Engine idling, A/C switch: On (magnet clutch on), Blower switch: Lo OK Waveform is as shown in the illustration. NG --> See step 3 OK --> See step 6
3. INSPECT COOLER COMPRESSOR ASSEMBLY Disconnect the C37 cooler compressor assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition C37-1 (SSR+) - C37-2 (SSR-) 20°C (68°F) 65 to 125 ohms NG --> See step 7 OK: Go to next step
4. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER - COOLER COMPRESSOR) Disconnect the E35 amplifier connector. Disconnect the C37 cooler compressor assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition E35-28 (LOCK) - C37-1 (SSR+) Always Below 1 ohms E35-29 (SG-5) - C37-2 (SSR-) E35-28 (LOCK) - Body ground Always 10 kohms or higher E35-29 (SG-5) - Body ground E35-28 (LOCK) - E35-29 (SG-5) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 8
5. GO TO CAN COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [01/2012 - ]»(ref-603947-S38607857192014031100000)
6. REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S36487855842014031100000)
7. REPLACE COOLER COMPRESSOR ASSEMBLY. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S13304099942014031100000)
8. REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S36487855842014031100000)

1. CHECK AIR CONDITIONER PRESSURE SENSOR Disconnect the A13 air conditioner pressure sensor connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition A13-3 (+) - Body ground Engine switch on (IG) 4.75 to 5.25 V NG --> See step 5 OK: Go to next step
2. CHECK AIR CONDITIONER PRESSURE SENSOR Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition A13-1 (-) - Body ground Always Below 1 ohms NG --> See step 6 OK: Go to next step
3. CHECK AIR CONDITIONER PRESSURE SENSOR Reconnect the A13 air conditioner pressure sensor connector. Remove the air conditioning amplifier assembly with its connectors still connected. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S36487855842014031100000) . Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition E35-20 (PRE) - Body ground Engine switch on (IG) A/C switch off 0.7 to 4.8 V HINT: If the measured voltage is not within the normal range, there may be a malfunction in the air conditioning amplifier assembly, air conditioner pressure sensor, or wire harness. It is also possible that the amount of refrigerant may not be appropriate. NG --> See step 7 OK: Go to next step
4. CHECK AIR CONDITIONER PRESSURE SENSOR Measure the voltage when the following conditions are satisfied. MEASUREMENT CONDITION Item Condition Engine Speed 1500 rpm Vehicle Doors Fully open Temperature Setting Lo Blower Speed Hi A/C Switch On R/F Switch Recirculation Interior Temperature 25 to 35°C (77 to 95°F) NOTE: If refrigerant pressure on the high pressure side becomes extremely high during the inspection (if the voltage exceeds 4.8 V), the fail-safe function stops compressor operation. Therefore, measure the voltage before the fail-safe operation. It is necessary to measure the voltage for a certain amount of time (approximately 10 minutes) because the problem symptom may recur after a while. HINT: When the outside air temperature is low (below -1.5°C [29.3°F]), the compressor stops due to operation of the ambient temperature and the evaporator temperature sensor to prevent the evaporator from freezing. In this case, perform the inspection in a warm indoor environment. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition E35-20 (PRE) - Body ground Engine switch on (IG) A/C switch: On 0.7 to 4.8 V NG --> See step 13 OK --> See step 19
5. CHECK HARNESS AND CONNECTOR (PRESSURE SENSOR - AIR CONDITIONING AMPLIFIER) Disconnect the E35 air conditioning amplifier assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition A13-3 (+) - E35-27 (S5-1) Always Below 1 ohms E35-27 (S5-1) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 19
6. CHECK HARNESS AND CONNECTOR (PRESSURE SENSOR - AIR CONDITIONING AMPLIFIER) Disconnect the E35 air conditioning amplifier assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition A13-1 (-) - E35-16 (SG-2) Always Below 1 ohms E35-16 (SG-2) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 19
7. CHECK HARNESS AND CONNECTOR (PRESSURE SENSOR - AIR CONDITIONING AMPLIFIER) Disconnect the E35 air conditioning amplifier assembly connector. Disconnect the A13 air conditioner pressure sensor connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition A13-2 (PR) - E35-20 (PRE) Always Below 1 ohms E35-20 (PRE) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
8. CHECK FOR AIR CONDITIONING SYSTEM LEAK Install the manifold gauge set. Recover the refrigerant from the air conditioning system using a refrigerant recovery unit. Refer to «REPLACEMENT [01/2012 - ]»(ref-603919-S05753392842014031100000) . Evacuate the air conditioning system and check that vacuum can be maintained in it. OK Vacuum can be maintained in the air conditioning system. HINT: If vacuum cannot be maintained in the air conditioning system, refrigerant may be leaking from it. In this case, it is necessary to repair or replace the leaking part of the air conditioning system. NG --> See step 12 OK: Go to next step
9. CHARGE REFRIGERANT Add an appropriate amount of refrigerant. Refer to «REPLACEMENT [01/2012 - ]»(ref-603919-S05753392842014031100000) . NEXT: Go to next step
10. RECHECK DTC Recheck for the DTC when the following conditions are satisfied. Refer to «DTC CHECK / CLEAR [01/2012 - ]»(ref-603931-S33121550902014031100000) . MEASUREMENT CONDITION Item Condition Engine Speed 1500 rpm Vehicle Doors Fully open Temperature Setting Lo Blower Speed Hi A/C Switch On R/F Switch Recirculation Interior Temperature 25 to 35°C (77 to 95°F) NOTE: If refrigerant pressure on the high pressure side becomes high, the DTC will be stored. Therefore, it is necessary to measure the voltage for a certain amount of time (approximately 10 minutes) because the DTC may be stored after the air conditioning system operates for a while. HINT: When the outside air temperature is low (below -1.5°C [29.3°F]), the compressor stops due to operation of the ambient temperature sensor and the evaporator temperature sensor to prevent the evaporator from freezing. In this case, perform the inspection in a warm indoor environment. OK DTC B1423/23 is not output. NOTE: If the DTC was stored due to an insufficient or excessive amount of refrigerant, the problem may have been solved after performing the previous step. However, the root cause of insufficient refrigerant may be refrigerant leaks. The root cause of excessive refrigerant may be adding refrigerant when the level was insufficient. Therefore, identify and repair the area where refrigerant leaks as necessary. NG --> See step 11 OK --> END
11. CHECK AIR CONDITIONER PRESSURE SENSOR Install the manifold gauge set. Refer to «ON-VEHICLE INSPECTION [01/2012 - ]»(ref-603919-S40981634982014031100000) . Reconnect the A13 air conditioner pressure sensor connector. Reconnect the E35 air conditioning amplifier assembly connector. Remove the air conditioning amplifier assembly with its connectors still connected. Turn the engine switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition E35-20 (PRE) - E35-16 (SG-2) Refrigerant pressure: Normal pressure (less than 3.0732 MPa [31.4 kgf/cm 2 , 445 psi] and more than 0.1762 MPa [1.8 kgf/cm 2 , 25 psi]) 1.0 to 4.8 V Refrigerant pressure: Abnormal (less than 0.1762 MPa [1.8 kgf/cm 2 , 25 psi]) Below 1 V Refrigerant pressure: Abnormal (more than 3.0732 MPa [31.4 kgf/cm 2 , 445 psi]) 4.8 V or higher NG --> See step 20 OK --> See step 19
12. REPAIR AIR CONDITIONING SYSTEM LEAK Identify the area where refrigerant leaks. Refer to «REPLACEMENT [01/2012 - ]»(ref-603919-S05753392842014031100000) . Repair the identified area of the air conditioning system. Evacuate the air conditioning system. NEXT --> See step 21
13. CHECK CONDENSER FAN Check that the condenser fan operates normally. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S24756010672014031100000) . NG --> See step 22 OK: Go to next step
14. CHARGE REFRIGERANT Use a refrigerant recovery unit to recover refrigerant. Evacuate the air conditioning system. Add an appropriate amount of refrigerant. Refer to «REPLACEMENT [01/2012 - ]»(ref-603919-S05753392842014031100000) . HINT: If refrigerant is added and the system has not been properly evacuated (insufficient vacuum time), moisture in the air remaining in the system will freeze in the expansion valve, blocking the flow on the high pressure side. Therefore, in order to confirm the problem, recover the refrigerant and properly evacuate the system. Add an appropriate amount of refrigerant, and check for the DTC. NEXT: Go to next step
15. RECHECK DTC Recheck for the DTC when the following conditions are satisfied. Refer to «DTC CHECK / CLEAR [01/2012 - ]»(ref-603931-S33121550902014031100000) . MEASUREMENT CONDITION Item Condition Engine Speed 1500 rpm Vehicle Doors Fully open Temperature Setting Lo Blower Speed Hi A/C Switch On R/F Switch Recirculation Interior Temperature 25 to 35°C (77 to 95°F) NOTE: If refrigerant pressure on the high pressure side becomes high, the DTC will be stored. Therefore, it is necessary to measure the voltage for a certain amount of time (approximately 10 minutes) because the DTC may be stored after the air conditioning system operates for a while. HINT: When the outside air temperature is low (below -1.5°C [29.3°F]), the compressor stops due to operation of the ambient temperature sensor and the evaporator temperature sensor to prevent the evaporator from freezing. In this case, perform the inspection in a warm indoor environment. If refrigerant is added and the system has not been properly evacuated (insufficient vacuum time), moisture in the air remaining in the system will freeze in the expansion valve, blocking the flow on the high pressure side. Therefore, in order to confirm the problem, recover the refrigerant and properly evacuate the system. Add an appropriate amount of refrigerant, and check for the DTC. If the DTC is not output after this procedure, it indicates that the cooler dryer in the cooler condenser assembly is not able to absorb moisture in the refrigerant cycle. In this case, to complete the repair it is necessary to replace the cooler dryer. OK DTC B1423/23 is not output. NG --> See step 16 OK --> See step 23
16. REPLACE COOLER EXPANSION VALVE Replace the cooler expansion valve with a normal one. Refer to «DISASSEMBLY [01/2012 - ]»(ref-603919-S42724894142014031100000) . HINT: Replace the cooler expansion valve with a normal one because the cooler expansion valve is either stuck or clogged. NEXT: Go to next step
17. CHARGE REFRIGERANT Add an appropriate amount of refrigerant. Refer to «REPLACEMENT [01/2012 - ]»(ref-603919-S05753392842014031100000) . NEXT: Go to next step
18. RECHECK DTC Recheck for the DTC when the following conditions are satisfied. Refer to «DTC CHECK / CLEAR [01/2012 - ]»(ref-603931-S33121550902014031100000) . MEASUREMENT CONDITION Item Condition Engine Speed 1500 rpm Vehicle Doors Fully open Temperature Setting Lo Blower Speed Hi A/C Switch On R/F Switch Recirculation Interior Temperature 25 to 35°C (77 to 95°F) NOTE: If refrigerant pressure on the high pressure side becomes high, the DTC will be stored. Therefore, it is necessary to measure the voltage for a certain amount of time (approximately 10 minutes) because the DTC may be stored after the air conditioning system operates for a while. HINT: When the outside air temperature is low (below -1.5°C [29.3°F]), the compressor stops due to operation of the ambient temperature sensor and the evaporator temperature sensor to prevent the evaporator from freezing. In this case, perform the inspection in a warm indoor environment. If refrigerant pressure is not normal after replacing the expansion valve with a normal one, the cooler condenser assembly or pipes may be clogged due to dirt, dust or other contaminants. In this case, clean or replace the cooler condenser assembly or pipes. OK DTC B1423/23 is not output. NG --> See step 24 OK --> END
19. REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S36487855842014031100000)
20. REPLACE AIR CONDITIONER PRESSURE SENSOR. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S12402692822014031100000)
21. CHARGE REFRIGERANT. Refer to «REPLACEMENT [01/2012 - ]»(ref-603919-S05753392842014031100000)
22. REPLACE CONDENSER FAN. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S24756010672014031100000)
23. REPLACE COOLER DRYER. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S04395701962014031100000)
24. REPLACE COOLER CONDENSER ASSEMBLY. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S04395701962014031100000)

1. READ VALUE USING TECHSTREAM (FRONT AIR MIX DAMPER SERVO MOTOR) Use the Data List to check if the servo motor is functioning properly. Refer to «DATA LIST / ACTIVE TEST [01/2012 - ]»(ref-603931-S00063631292014031100000) . AIR CONDITIONER Tester Display Measurement Item/Range Normal Condition Diagnostic Note Air Mix Servo Targ Pulse (P) Front air mix damper servo motor (for front passenger side) target pulse / Min.: 8, Max.: 90 MAX COOL: 8 (pulse) MAX HOT: 90 (pulse) - OK The display is as specified in the normal condition. NG --> See step 2 OK --> See step 5
2. REPLACE FRONT AIR MIX DAMPER SERVO MOTOR Replace the front air mix damper servo motor (for front passenger side). Refer to «DISASSEMBLY [01/2012 - ]»(ref-603919-S42724894142014031100000) . HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one. NEXT: Go to next step
3. CHECK FOR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR [01/2012 - ]»(ref-603931-S33121550902014031100000) . Check for DTCs. Refer to «DTC CHECK / CLEAR [01/2012 - ]»(ref-603931-S33121550902014031100000) . OK DTC B1441/41 is not output. NG --> See step 6 OK --> See step 4
4. REPLACE FRONT AIR MIX DAMPER SERVO MOTOR. Refer to «DISASSEMBLY [01/2012 - ]»(ref-603919-S42724894142014031100000)
5. REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S36487855842014031100000)
6. REPLACE AIR CONDITIONING HARNESS ASSEMBLY. Refer to «DISASSEMBLY [01/2012 - ]»(ref-603919-S42724894142014031100000)

1. READ VALUE USING TECHSTREAM (REC/FRS DAMPER SERVO MOTOR) Use the Data List to check if the servo motor is functioning properly. Refer to «DATA LIST / ACTIVE TEST [01/2012 - ]»(ref-603931-S00063631292014031100000) . AIR CONDITIONER Tester Display Measurement Item/Range Normal Condition Diagnostic Note Air Inlet Damper Targ Pulse REC/FRS damper servo motor target pulse / Min.: 9, Max.: 37 RECIRCULATION: 37 (pulse) FRESH: 9 (pulse) - OK The display is as specified in the normal condition. NG --> See step 2 OK --> See step 5
2. REPLACE REC/FRS DAMPER SERVO MOTOR Replace the REC/FRS damper servo motor. Refer to «DISASSEMBLY [01/2012 - ]»(ref-603919-S42782376802014031100000) . HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one. NEXT: Go to next step
3. CHECK FOR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR [01/2012 - ]»(ref-603931-S33121550902014031100000) . Check for DTCs. Refer to «DTC CHECK / CLEAR [01/2012 - ]»(ref-603931-S33121550902014031100000) . OK DTC B1442/42 is not output. NG --> See step 6 OK --> See step 4
4. REPLACE REC/FRS DAMPER SERVO MOTOR. Refer to «DISASSEMBLY [01/2012 - ]»(ref-603919-S42782376802014031100000)
5. REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S36487855842014031100000)
6. REPLACE AIR CONDITIONING HARNESS ASSEMBLY. Refer to «DISASSEMBLY [01/2012 - ]»(ref-603919-S42724894142014031100000)

1. READ VALUE USING TECHSTREAM (AIR OUTLET DAMPER SERVO MOTOR) Use the Data List to check if the servo motor is functioning properly. Refer to «DATA LIST / ACTIVE TEST [01/2012 - ]»(ref-603931-S00063631292014031100000) . AIR CONDITIONER Tester Display Measurement Item/Range Normal Condition Diagnostic Note A/O Damper FACE Pos(D) Air outlet damper servo motor (for driver side mode) target pulse / Min.: 6, Max.: 117 FACE: 109 (pulse) FACE2: 109 (pulse) FACE3: 117 (pulse) B/L1: 93 (pulse) B/L2: 81 (pulse) FOOT-D: 52 (pulse) FOOT-R: 41 (pulse) FOOT: 41 (pulse) F/D: 18 (pulse) DEF: 6 (pulse) - OK The display is as specified in the normal condition. NG --> See step 2 OK --> See step 5
2. REPLACE AIR OUTLET DAMPER SERVO MOTOR Replace the air outlet damper servo motor (for driver side mode). Refer to «DISASSEMBLY [01/2012 - ]»(ref-603919-S42724894142014031100000) . HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one. NEXT: Go to next step
3. CHECK FOR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR [01/2012 - ]»(ref-603931-S33121550902014031100000) . Check for DTCs. Refer to «DTC CHECK / CLEAR [01/2012 - ]»(ref-603931-S33121550902014031100000) . OK DTC B1443/43 is not output. NG --> See step 6 OK --> See step 4
4. REPLACE AIR OUTLET DAMPER SERVO MOTOR. Refer to «DISASSEMBLY [01/2012 - ]»(ref-603919-S42724894142014031100000)
5. REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S36487855842014031100000)
6. REPLACE AIR CONDITIONING HARNESS ASSEMBLY. Refer to «DISASSEMBLY [01/2012 - ]»(ref-603919-S42724894142014031100000)

1. READ VALUE USING TECHSTREAM (COOL AIR BYPASS DAMPER SERVO MOTOR) Use the Data List to check if the servo motor is functioning properly. Refer to «DATA LIST / ACTIVE TEST [01/2012 - ]»(ref-603931-S00063631292014031100000) . AIR CONDITIONER Tester Display Measurement Item/Range Normal Condition Diagnostic Note Cool Air Bypass Pulse Cool air bypass damper servo motor target pulse / Min.: 6, Max.: 57 Shut: 6 (pulse) Open: 57 (pulse) - OK The display is as specified in the normal condition. NG --> See step 2 OK --> See step 5
2. REPLACE COOL AIR BYPASS DAMPER SERVO MOTOR Replace the cool air bypass damper servo motor. Refer to «DISASSEMBLY [01/2012 - ]»(ref-603919-S42724894142014031100000) . HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one. NEXT: Go to next step
3. CHECK FOR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR [01/2012 - ]»(ref-603931-S33121550902014031100000) . Check for DTCs. Refer to «DTC CHECK / CLEAR [01/2012 - ]»(ref-603931-S33121550902014031100000) . OK DTC B1445/45 is not output. NG --> See step 6 OK --> See step 4
4. REPLACE COOL AIR BYPASS DAMPER SERVO MOTOR. Refer to «DISASSEMBLY [01/2012 - ]»(ref-603919-S42724894142014031100000)
5. REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S36487855842014031100000)
6. REPLACE AIR CONDITIONING HARNESS ASSEMBLY. Refer to «DISASSEMBLY [01/2012 - ]»(ref-603919-S42724894142014031100000)

1. READ VALUE USING TECHSTREAM (FRONT AIR MIX DAMPER SERVO MOTOR) Use the Data List to check if the servo motor is functioning properly. Refer to «DATA LIST / ACTIVE TEST [01/2012 - ]»(ref-603931-S00063631292014031100000) . AIR CONDITIONER Tester Display Measurement Item/Range Normal Condition Diagnostic Note Air Mix Servo Targ Pulse(D) Front air mix damper servo motor (for driver side) target pulse / Min.: 8, Max.: 90 MAX COOL: 90 (pulse) MAX HOT: 8 (pulse) - OK The display is as specified in the normal condition. NG --> See step 2 OK --> See step 5
2. REPLACE FRONT AIR MIX DAMPER SERVO MOTOR Replace the front air mix damper servo motor (for driver side). Refer to «DISASSEMBLY [01/2012 - ]»(ref-603919-S42724894142014031100000) . HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one. NEXT: Go to next step
3. CHECK FOR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR [01/2012 - ]»(ref-603931-S33121550902014031100000) . Check for DTCs. Refer to «DTC CHECK / CLEAR [01/2012 - ]»(ref-603931-S33121550902014031100000) . OK DTC B1446/46 is not output. NG --> See step 6 OK --> See step 4
4. REPLACE FRONT AIR MIX DAMPER SERVO MOTOR. Refer to «DISASSEMBLY [01/2012 - ]»(ref-603919-S42724894142014031100000)
5. REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S36487855842014031100000)
6. REPLACE AIR CONDITIONING HARNESS ASSEMBLY. Refer to «DISASSEMBLY [01/2012 - ]»(ref-603919-S42724894142014031100000)

1. READ VALUE USING TECHSTREAM (REAR AIR MIX DAMPER SERVO MOTOR LH) Use the Data List to check if the servo motor is functioning properly. Refer to «DATA LIST / ACTIVE TEST [01/2012 - ]»(ref-603931-S00063631292014031100000) . AIR CONDITIONER Tester Display Measurement Item/Range Normal Condition Diagnostic Note A/M Servo Targ Pulse (Rear D) Rear air mix damper servo motor LH target pulse / Min.: 9, Max.: 54 MAX COOL: 9 (pulse) MAX HOT: 54 (pulse) - OK The display is as specified in the normal condition. NG --> See step 2 OK --> See step 6
2. CHECK HARNESS AND CONNECTOR (NO. 2 AIR CONDITIONING HARNESS - AIR CONDITIONING AMPLIFIER) Disconnect the K19 No. 2 air conditioning harness assembly connector. Disconnect the E36 amplifier connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition K19-2 (RBUG) - E36-12 (RBUG) Always Below 1 ohms K19-3 (RBUS) - E36-13 (RBUS) K19-4 (RBBU) - E36-14 (RBBU) E36-12 (RBUG) - Body ground Always 10 kohms or higher E36-13 (RBUS) - Body ground E36-14 (RBBU) - Body ground NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
3. REPLACE REAR AIR MIX DAMPER SERVO MOTOR LH Replace the air mix damper servo motor LH. Refer to «DISASSEMBLY [01/2012 - ]»(ref-603919-S02745817992014031100000) . HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one. NEXT: Go to next step
4. CHECK FOR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR [01/2012 - ]»(ref-603931-S33121550902014031100000) . Check for DTCs. Refer to «DTC CHECK / CLEAR [01/2012 - ]»(ref-603931-S33121550902014031100000) . OK DTC B1447/47 is not output. NG --> See step 7 OK --> See step 5
5. REPLACE REAR AIR MIX DAMPER SERVO MOTOR LH. Refer to «DISASSEMBLY [01/2012 - ]»(ref-603919-S02745817992014031100000)
6. REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S36487855842014031100000)
7. REPLACE NO. 2 AIR CONDITIONING HARNESS ASSEMBLY. Refer to «DISASSEMBLY [01/2012 - ]»(ref-603919-S02745817992014031100000)

1. READ VALUE USING TECHSTREAM (AIR OUTLET DAMPER SERVO MOTOR) Use the Data List to check if the servo motor is functioning properly. Refer to «DATA LIST / ACTIVE TEST [01/2012 - ]»(ref-603931-S00063631292014031100000) . AIR CONDITIONER Tester Display Measurement Item/Range Normal Condition Diagnostic Note A/O Damper FACE Pos(P) Air outlet damper servo motor (for front passenger side mode) target pulse / Min.: 6, Max.: 117 FACE1: 117 (pulse) FACE2: 109 (pulse) B/L1: 93 (pulse) B/L2: 81 (pulse) FOOT-F: 41 (pulse) FOOT-R: 41 (pulse) FOOT-D: 52 (pulse) F/D: 18 (pulse) DEF: 6 (pulse) - OK The display is as specified in the normal condition. NG --> See step 2 OK --> See step 5
2. REPLACE AIR OUTLET DAMPER SERVO MOTOR Replace the air outlet damper servo motor (for front passenger side mode). Refer to «DISASSEMBLY [01/2012 - ]»(ref-603919-S42724894142014031100000) . HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one. NEXT: Go to next step
3. CHECK FOR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR [01/2012 - ]»(ref-603931-S33121550902014031100000) . Check for DTCs. Refer to «DTC CHECK / CLEAR [01/2012 - ]»(ref-603931-S33121550902014031100000) . OK DTC B1448/48 is not output. NG --> See step 6 OK --> See step 4
4. REPLACE AIR OUTLET DAMPER SERVO MOTOR. Refer to «DISASSEMBLY [01/2012 - ]»(ref-603919-S42724894142014031100000)
5. REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S36487855842014031100000)
6. REPLACE AIR CONDITIONING HARNESS ASSEMBLY. Refer to «DISASSEMBLY [01/2012 - ]»(ref-603919-S42724894142014031100000)

1. READ VALUE USING TECHSTREAM (REAR AIR OUTLET DAMPER SERVO MOTOR) Use the Data List to check if the servo motor is functioning properly. Refer to «DATA LIST / ACTIVE TEST [01/2012 - ]»(ref-603931-S00063631292014031100000) . AIR CONDITIONER Tester Display Measurement Item/Range Normal Condition Diagnostic Note Air Outlet Servo Pulse (R) Rear air outlet damper servo motor target pulse / Min.: 7, Max.: 83 FOOT: 7 (pulse) B/L: 42 (pulse) FACE: 83 (pulse) - OK The display is as specified in the normal condition. NG --> See step 2 OK --> See step 6
2. CHECK HARNESS AND CONNECTOR (NO. 2 AIR CONDITIONING HARNESS - AIR CONDITIONING AMPLIFIER) Disconnect the K19 No. 2 air conditioning harness assembly connector. Disconnect the E36 amplifier connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition K19-2 (RBUG) - E36-12 (RBUG) Always Below 1 ohms K19-3 (RBUS) - E36-13 (RBUS) K19-4 (RBBU) - E36-14 (RBBU) E36-12 (RBUG) - Body ground Always 10 kohms or higher E36-13 (RBUS) - Body ground E36-14 (RBBU) - Body ground NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
3. REPLACE REAR AIR OUTLET DAMPER SERVO MOTOR Replace the rear air outlet damper servo motor. Refer to «DISASSEMBLY [01/2012 - ]»(ref-603919-S02745817992014031100000) . HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one. NEXT: Go to next step
4. CHECK FOR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR [01/2012 - ]»(ref-603931-S33121550902014031100000) . Check for DTCs. Refer to «DTC CHECK / CLEAR [01/2012 - ]»(ref-603931-S33121550902014031100000) . OK DTC B1449/49 is not output. NG --> See step 7 OK --> See step 5
5. REPLACE REAR AIR OUTLET DAMPER SERVO MOTOR. Refer to «DISASSEMBLY [01/2012 - ]»(ref-603919-S02745817992014031100000)
6. REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S36487855842014031100000)
7. REPLACE NO. 2 AIR CONDITIONING HARNESS ASSEMBLY. Refer to «DISASSEMBLY [01/2012 - ]»(ref-603919-S02745817992014031100000)

1. READ VALUE USING TECHSTREAM (FRONT AIR MIX DAMPER SERVO MOTOR) Use the Data List to check if the servo motor is functioning properly. Refer to «DATA LIST / ACTIVE TEST [01/2012 - ]»(ref-603931-S00063631292014031100000) . AIR CONDITIONER Tester Display Measurement Item/Range Normal Condition Diagnostic Note Air Mix Servo Targ Pls(F&R D) Front air mix damper servo motor (for driver side rear air flow) target pulse / Min.: 13, Max.: 41 MAX COOL: 13 (pulse) MAX HOT: 41 (pulse) - OK The display is as specified in the normal condition. NG --> See step 2 OK --> See step 5
2. REPLACE FRONT AIR MIX DAMPER SERVO MOTOR Replace the front air mix damper servo motor (for driver side rear air flow). Refer to «DISASSEMBLY [01/2012 - ]»(ref-603919-S42724894142014031100000) . HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one. NEXT: Go to next step
3. CHECK FOR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR [01/2012 - ]»(ref-603931-S33121550902014031100000) . Check for DTCs. Refer to «DTC CHECK / CLEAR [01/2012 - ]»(ref-603931-S33121550902014031100000) . OK DTC B1457/57 is not output. NG --> See step 6 OK --> See step 4
4. REPLACE FRONT AIR MIX DAMPER SERVO MOTOR. Refer to «DISASSEMBLY [01/2012 - ]»(ref-603919-S42724894142014031100000)
5. REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S36487855842014031100000)
6. REPLACE AIR CONDITIONING HARNESS ASSEMBLY. Refer to «DISASSEMBLY [01/2012 - ]»(ref-603919-S42724894142014031100000)

1. READ VALUE USING TECHSTREAM (FRONT AIR MIX DAMPER SERVO MOTOR) Use the Data List to check if the servo motor is functioning properly. Refer to «DATA LIST / ACTIVE TEST [01/2012 - ]»(ref-603931-S00063631292014031100000) . AIR CONDITIONER Tester Display Measurement Item/Range Normal Condition Diagnostic Note Air Mix Servo Targ Pls(F&R P) Front air mix damper servo motor (for front passenger side rear air flow) target pulse / Min.: 5, Max.: 33 MAX COOL: 33 (pulse) MAX HOT: 5 (pulse) - OK The display is as specified in the normal condition. NG --> See step 2 OK --> See step 5
2. REPLACE FRONT AIR MIX DAMPER SERVO MOTOR Replace the front air mix damper servo motor (for front passenger side rear air flow). Refer to «DISASSEMBLY [01/2012 - ]»(ref-603919-S42724894142014031100000) . HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one. NEXT: Go to next step
3. CHECK FOR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR [01/2012 - ]»(ref-603931-S33121550902014031100000) . Check for DTCs. Refer to «DTC CHECK / CLEAR [01/2012 - ]»(ref-603931-S33121550902014031100000) . OK DTC B1458/58 is not output. NG --> See step 6 OK --> See step 4
4. REPLACE FRONT AIR MIX DAMPER SERVO MOTOR. Refer to «DISASSEMBLY [01/2012 - ]»(ref-603919-S42724894142014031100000)
5. REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S36487855842014031100000)
6. REPLACE AIR CONDITIONING HARNESS ASSEMBLY. Refer to «DISASSEMBLY [01/2012 - ]»(ref-603919-S42724894142014031100000)

1. INSPECT FUSE (A/C IG) Remove the A/C IG fuse from the cowl side junction block LH. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition A/C IG fuse Always Below 1 ohms NG --> REPLACE FUSE OK: Go to next step
2. READ VALUE USING TECHSTREAM (SMOG VENTILATION SENSOR) Use the Data List to check if the smog ventilation sensor is functioning properly. Refer to «DATA LIST / ACTIVE TEST [01/2012 - ]»(ref-603931-S00063631292014031100000) . AIR CONDITIONER Tester Display Measurement Item / Range Normal Condition Diagnostic Note Emission Gas Nox Sensor Smog ventilation sensor/ Min.: 0, Max.: 255 Increases as the gas amount increases - OK The display is as specified in the normal condition. NG --> See step 3 OK --> See step 7
3. CHECK HARNESS AND CONNECTOR (SMOG VENTILATION SENSOR - BODY GROUND) Disconnect the A45 smog ventilation sensor connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition A45-6 (E) - Body ground Always Below 1 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
4. CHECK HARNESS AND CONNECTOR (SMOG VENTILATION SENSOR - BATTERY) Disconnect the A45 smog ventilation sensor connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition A45-3 (IG) - Body ground Engine switch on (IG) 11 to 14 V NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
5. INSPECT SMOG VENTILATION SENSOR Remove the smog ventilation sensor. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S34157427132014031100000) . After applying battery voltage to terminals 3 (IG) and 6 (E) for more than 30 seconds, measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 1 (SG) - 4 (DGS1) 15 to 25°C (59 to 77°F) 2.5 to 40 kohms HINT: When the sensor is exposed to the exhaust gas, the resistance increases. NG --> See step 8 OK: Go to next step
6. CHECK HARNESS AND CONNECTOR (SMOG VENTILATION SENSOR - AIR CONDITIONING AMPLIFIER) Disconnect the A45 smog ventilation sensor connector. Disconnect the E35 amplifier connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition A45-1 (SG) - E35-30 (SG-4) Always Below 1 ohms A45-4 (DGS1) - E35-24 (DGS1) E35-24 (DGS1) - Body ground Always 10 kohms or higher E35-30 (SG-4) - Body ground E35-24 (DGS1) - E35-30 (SG-4) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 9
7. REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S36487855842014031100000)
8. REPLACE SMOG VENTILATION SENSOR. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S34157427132014031100000)
9. REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S36487855842014031100000)

1. READ VALUE USING TECHSTREAM (DUCT SENSOR LH) Use the Data List to check if the duct sensor LH (for driver side) is functioning properly. Refer to «DATA LIST / ACTIVE TEST [01/2012 - ]»(ref-603931-S00063631292014031100000) . AIR CONDITIONER Tester Display Measurement Item/Range Normal Condition Diagnostic Note Foot Duct Sensor (Rear D) Duct sensor / Min.: -12.7°C (9.14°F) Max.: 76.55°C (169.79°F) Actual temperature measured by duct sensor LH displayed Open in the circuit: -12.7°C (9.14°F). Short in the circuit: 76.55°C (169.79°F). OK The display is as specified in the normal condition. NG --> See step 2 OK --> See step 4
2. CHECK DUCT SENSOR LH Remove the duct sensor LH. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S27276915152014031100000) . Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 1 - 2 10°C (50°F) 9.4 to 10.5 kohms 15°C (59°F) 7.5 to 8.3 kohms 20°C (68°F) 6.0 to 6.5 kohms 25°C (77°F) 4.8 to 5.2 kohms 30°C (86°F) 3.8 to 4.2 kohms 35°C (95°F) 3.1 to 3.4 kohms 40°C (104°F) 2.5 to 2.8 kohms 45°C (113°F) 2.0 to 2.3 kohms 50°C (122°F) 1.6 to 2.0 kohms 55°C (131°F) 1.3 to 1.6 kohms 60°C (140°F) 1.1 to 1.4 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 in illustration). If the resistance value is not as specified, replace the sensor. NG --> See step 5 OK: Go to next step
3. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER - DUCT SENSOR) Disconnect the K21 sensor connector. Disconnect the E35 amplifier connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition E35-25 (TR3) - K21-1 Always Below 1 ohms E35-34 (SGND) - K21-2 E35-25 (TR3) - Body ground Always 10 kohms or higher E35-34 (SGND) - Body ground E35-25 (TR3) - E35-34 (SGND) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 4
4. REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S36487855842014031100000)
5. REPLACE DUCT SENSOR LH. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S27276915152014031100000)

1. READ VALUE USING TECHSTREAM (AIR OUTLET DAMPER SERVO MOTOR) Use the Data List to check if the servo motor is functioning properly. Refer to «DATA LIST / ACTIVE TEST [01/2012 - ]»(ref-603931-S00063631292014031100000) . AIR CONDITIONER Tester Display Measurement Item/Range Normal Condition Diagnostic Note Air Outlet Servo Pls(F&R D) Air outlet damper servo motor (for rear seat mode) target pulse / Min.: 9, Max.: 79 FACE1: 9 (pulse) FACE2: 9 (pulse) B/L1: 28 (pulse) B/L2: 34 (pulse) FOOT-O: 41 (pulse) FOOT-D: 41 (pulse) FOOT-R: 41 (pulse) FOOT-F: 58 (pulse) F/D: 67 (pulse) DEF: 79 (pulse) - OK The display is as specified in the normal condition. NG --> See step 2 OK --> See step 5
2. REPLACE AIR OUTLET DAMPER SERVO MOTOR Replace the air outlet damper servo motor (for rear seat mode). Refer to «DISASSEMBLY [01/2012 - ]»(ref-603919-S42724894142014031100000) . HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one. NEXT: Go to next step
3. CHECK FOR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR [01/2012 - ]»(ref-603931-S33121550902014031100000) . Check for DTCs. Refer to «DTC CHECK / CLEAR [01/2012 - ]»(ref-603931-S33121550902014031100000) . OK DTC B1486/86 is not output. NG --> See step 6 OK --> See step 4
4. REPLACE AIR OUTLET DAMPER SERVO MOTOR. Refer to «DISASSEMBLY [01/2012 - ]»(ref-603919-S42724894142014031100000)
5. REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S36487855842014031100000)
6. REPLACE AIR CONDITIONING HARNESS ASSEMBLY. Refer to «DISASSEMBLY [01/2012 - ]»(ref-603919-S42724894142014031100000)

1. READ VALUE USING TECHSTREAM (REAR AIR MIX DAMPER SERVO MOTOR RH) Use the Data List to check if the servo motor is functioning properly. Refer to «DATA LIST / ACTIVE TEST [01/2012 - ]»(ref-603931-S00063631292014031100000) . AIR CONDITIONER Tester Display Measurement Item/Range Normal Condition Diagnostic Note A/M Servo Targ Pulse (Rear P) Rear air mix damper servo motor RH target pulse / Min.: 8, Max.: 53 MAX COOL: 53 (pulse) MAX HOT: 8 (pulse) - OK The display is as specified in the normal condition. NG --> See step 2 OK --> See step 6
2. CHECK HARNESS AND CONNECTOR (NO. 2 AIR CONDITIONING HARNESS - AIR CONDITIONING AMPLIFIER) Disconnect the K19 No. 2 air conditioning harness assembly connector. Disconnect the E36 amplifier connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition K19-2 (RBUG) - E36-12 (RBUG) Always Below 1 ohms K19-3 (RBUS) - E36-13 (RBUS) K19-4 (RBBU) - E36-14 (RBBU) E36-12 (RBUG) - Body ground Always 10 kohms or higher E36-13 (RBUS) - Body ground E36-14 (RBBU) - Body ground NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
3. REPLACE REAR AIR MIX DAMPER SERVO MOTOR RH Replace the rear air mix damper servo motor RH. Refer to «DISASSEMBLY [01/2012 - ]»(ref-603919-S02745817992014031100000) . HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one. NEXT: Go to next step
4. CHECK FOR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR [01/2012 - ]»(ref-603931-S33121550902014031100000) . Check for DTCs. Refer to «DTC CHECK / CLEAR [01/2012 - ]»(ref-603931-S33121550902014031100000) . OK DTC B1489/89 is not output. NG --> See step 7 OK --> See step 5
5. REPLACE REAR AIR MIX DAMPER SERVO MOTOR RH. Refer to «DISASSEMBLY [01/2012 - ]»(ref-603919-S02745817992014031100000)
6. REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S36487855842014031100000)
7. REPLACE NO. 2 AIR CONDITIONING HARNESS ASSEMBLY. Refer to «DISASSEMBLY [01/2012 - ]»(ref-603919-S02745817992014031100000)

1. READ VALUE USING TECHSTREAM (DRIVER SIDE SOLAR SENSOR) Use the Data List to check if the driver side solar sensor is functioning properly. Refer to «DATA LIST / ACTIVE TEST [01/2012 - ]»(ref-603931-S00063631292014031100000) . AIR CONDITIONER Tester Display Measurement Item/Range Normal Condition Diagnostic Note Solar Sensor (D Side) Driver side solar sensor / Min.: 0, Max.: 255 Driver side solar sensor voltage increases as brightness increases Open in the circuit: 0. Short in the circuit: 255. OK The display is as specified in the normal condition. NG --> See step 2 OK --> See step 5
2. CHECK HARNESS AND CONNECTOR (AUTOMATIC LIGHT CONTROL SENSOR - AIR CONDITIONING AMPLIFIER) Disconnect the F9 sensor connector. Disconnect the E35 amplifier connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition F9-1 (TSL) - E35-7 (TSD) Always Below 1 ohms E35-7 (TSD) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
3. INSPECT AUTOMATIC LIGHT CONTROL SENSOR (TSL - CLTE VOLTAGE) Remove the automatic light control sensor. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S41760857212014031100000) . Apply battery voltage to terminals 6 (CLTB) and 3 (CLTE) of the solar sensor. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition 1 (TSL) - 3 (CLTE) Sensor exposed to electric light 0.8 to 4.3 V Sensor covered with a cloth Below 0.8 V HINT: As the inspection light is moved away from the sensor, the voltage decreases. Use an incandescent light for inspection. Bring it about 300 mm (11.8 in.) from the solar sensor. NG --> See step 6 OK: Go to next step
4. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - AUTOMATIC LIGHT CONTROL SENSOR) Disconnect the E2 ECU connector. Disconnect the F9 sensor connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition E2-20 (CLTB) - F9-6 (CLTB) Always Below 1 ohms E2-19 (CLTS) - F9-5 (CLTS) E2-18 (CLTE) - F9-3 (CLTE) E2-20 (CLTB) - Body ground Always 10 kohms or higher E2-19 (CLTS) - Body ground E2-18 (CLTE) - Body ground NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> REPLACE MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH)
5. REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S36487855842014031100000)
6. REPLACE AUTOMATIC LIGHT CONTROL SENSOR. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S41760857212014031100000)

1. READ VALUE USING TECHSTREAM (FRONT PASSENGER SIDE SOLAR SENSOR) Use the Data List to check if the front passenger side solar sensor is functioning properly. Refer to «DATA LIST / ACTIVE TEST [01/2012 - ]»(ref-603931-S00063631292014031100000) . AIR CONDITIONER Tester Display Measurement Item/Range Normal Condition Diagnostic Note Solar Sensor (P Side) Front passenger side solar sensor / Min.: 0, Max.: 255 Front passenger side solar sensor voltage increases as brightness increases Open in the circuit: 0. Short in the circuit: 255. OK The display is as specified in the normal condition. NG --> See step 2 OK --> See step 5
2. CHECK HARNESS AND CONNECTOR (AUTOMATIC LIGHT CONTROL SENSOR - AIR CONDITIONING AMPLIFIER) Disconnect the F9 sensor connector. Disconnect the E35 amplifier connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition F9-2 (TSR) - E35-8 (TSP) Always Below 1 ohms E35-8 (TSP) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
3. INSPECT AUTOMATIC LIGHT CONTROL SENSOR (TSR - CLTE VOLTAGE) Remove the automatic light control sensor. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S41760857212014031100000) . Apply battery voltage between terminals 6 (CLTB) and 3 (CLTE) of the solar sensor. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition 2 (TSR) - 3 (CLTE) Sensor exposed to electric light 0.8 to 4.3 V Sensor covered with a cloth Below 0.8 V HINT: As the inspection light is moved away from the sensor, the voltage decreases. Use an incandescent light for inspection. Bring it about 300 mm (11.8 in.) from the solar sensor. NG --> See step 6 OK: Go to next step
4. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - AUTOMATIC LIGHT CONTROL SENSOR) Disconnect the E2 ECU connector. Disconnect the F9 sensor connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition E2-20 (CLTB) - F9-6 (CLTB) Always Below 1 ohms E2-19 (CLTS) - F9-5 (CLTS) E2-18 (CLTE) - F9-3 (CLTE) E2-20 (CLTB) - Body ground Always 10 kohms or higher E2-19 (CLTS) - Body ground E2-18 (CLTE) - Body ground NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> REPLACE MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH)
5. REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S36487855842014031100000)
6. REPLACE AUTOMATIC LIGHT CONTROL SENSOR. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S41760857212014031100000)

1. CHECK CAN COMMUNICATION SYSTEM Use the intelligent tester to check if the CAN communication system is functioning normally. Refer to «DIAGNOSIS SYSTEM [01/2012 - ]»(ref-603947-S06484156272014031100000) . RESULT Result Proceed to CAN DTC is not output A CAN DTC is output B B --> See step 2 A --> See step 3
2. GO TO CAN COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [01/2012 - ]»(ref-603947-S38607857192014031100000)
3. USE SIMULATION METHOD TO CHECK. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [01/2012 - ]»(ref-603789-S02048416482014031100000)

1. INSPECT FUSE (A/C IG) Remove the A/C IG fuse from the cowl side junction block LH. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition A/C IG fuse Always Below 1 ohms NG --> REPLACE FUSE OK: Go to next step
2. CHECK HARNESS AND CONNECTOR (NO. 1 COOLER WIRING HARNESS - BATTERY) Disconnect the No. 1 cooler wiring harness sub-assembly connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition 1 (B) - Body ground Engine switch off Below 1 V Engine switch on (IG) 11 to 14 V NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
3. CHECK HARNESS AND CONNECTOR (NO. 1 COOLER WIRING HARNESS - BODY GROUND) Disconnect the No. 1 cooler wiring harness sub-assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 6 (L) - Body ground Always Below 1 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
4. CHECK NO. 1 COOLER WIRING HARNESS SUB-ASSEMBLY (OPERATION) Replace the No. 1 cooler wiring harness sub-assembly with a normal one and check that the condition returns to normal. OK Same problem does not occur. NG --> See step 5 OK --> REPLACE NO. 1 COOLER WIRING HARNESS SUB-ASSEMBLY
5. CHECK COOLER MAGNETIC VALVE (OPERATION) Replace the cooler magnetic valve. Refer to «DISASSEMBLY [01/2012 - ]»(ref-603940-S12932537562014031100000) . HINT: Since the cooler magnetic valve cannot be inspected while it is removed from the vehicle, replace the cooler magnetic valve with a normal one and check that the condition returns to normal. OK Same problem does not occur. NG --> See step 6 OK --> See step 7
6. REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY (for Cool Box). Refer to «DISASSEMBLY [01/2012 - ]»(ref-603940-S12932537562014031100000)
7. REPLACE COOLER MAGNETIC VALVE. Refer to «DISASSEMBLY [01/2012 - ]»(ref-603940-S12932537562014031100000)

1. INSPECT FUSE (A/C IG) Remove the A/C IG fuse from the cowl side junction block LH. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition A/C IG fuse Always Below 1 ohms NG --> REPLACE FUSE OK: Go to next step
2. CHECK HARNESS AND CONNECTOR (NO. 1 COOLER WIRING HARNESS - BATTERY) Disconnect the No. 1 cooler wiring harness sub-assembly connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition 1 (B) - Body ground Engine switch off Below 1 V Engine switch on (IG) 11 to 14 V NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
3. CHECK HARNESS AND CONNECTOR (NO. 1 COOLER WIRING HARNESS - BODY GROUND) Disconnect the No. 1 cooler wiring harness sub-assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 6 (L) - Body ground Always Below 1 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
4. CHECK NO. 1 COOLER WIRING HARNESS SUB-ASSEMBLY (OPERATION) Replace the No. 1 cooler wiring harness sub-assembly with a normal one and check that the condition returns to normal. OK Same problem does not occur. NG --> See step 5 OK --> REPLACE NO. 1 COOLER WIRING HARNESS SUB-ASSEMBLY
5. INSPECT COOL BOX BLOWER WITH FAN MOTOR SUB-ASSEMBLY Remove the cool box blower with fan motor sub-assembly. Refer to «DISASSEMBLY [01/2012 - ]»(ref-603940-S12932537562014031100000) . Connect the positive (+) lead from the battery to terminal 2 and negative (-) lead to terminal 1, then check that the motor operates smoothly. OK Cool box blower with fan motor sub-assembly operates smoothly. NG --> See step 6 OK --> See step 7
6. REPLACE COOL BOX BLOWER WITH FAN MOTOR SUB-ASSEMBLY. Refer to «DISASSEMBLY [01/2012 - ]»(ref-603940-S12932537562014031100000)
7. REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY (for Cool Box). Refer to «DISASSEMBLY [01/2012 - ]»(ref-603940-S12932537562014031100000)

1. INSPECT FUSE (PANEL, A/C IG, ECU-B1) Remove the PANEL and A/C IG fuses from the cowl side junction block LH. Remove the ECU-B1 fuse from the engine room relay block. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition PANEL fuse Always Below 1 ohms ECU-B1 fuse Always Below 1 ohms A/C IG fuse Always Below 1 ohms NG --> REPLACE FUSE OK: Go to next step
2. CHECK HARNESS AND CONNECTOR (NO. 1 COOLER WIRING HARNESS - BATTERY) Disconnect the No. 1 cooler wiring harness sub-assembly connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition 4 (+B) - Body ground Always 11 to 14 V 3 (ILL+) - Body ground Engine switch off Below 1 V Engine switch on (IG) 11 to 14 V 1 (B) - Body ground Engine switch off Below 1 V Engine switch on (IG) 11 to 14 V NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
3. CHECK HARNESS AND CONNECTOR (NO. 1 COOLER WIRING HARNESS - BODY GROUND) Disconnect the No. 1 cooler wiring harness sub-assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 6 (L) - Body ground Always Below 1 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
4. CHECK NO. 1 COOLER WIRING HARNESS SUB-ASSEMBLY (OPERATION) Replace the No. 1 cooler wiring harness sub-assembly with a normal one and check that the condition returns to normal. OK Same problem does not occur. NG --> See step 5 OK --> REPLACE NO. 1 COOLER WIRING HARNESS SUB-ASSEMBLY
5. INSPECT COOLER CONTROL SWITCH SUB-ASSEMBLY Remove the cooler control switch sub-assembly. Refer to «DISASSEMBLY [01/2012 - ]»(ref-603940-S12932537562014031100000) . Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition 1 - 2 On Below 1 ohms 1 - 2 Off 10 kohms or higher Apply battery voltage to the cooler control switch connector and check that the cooler control switch illuminates. OK Measurement Condition Specified Condition Battery positive (+) --> Terminal 3 Battery negative (-) --> Terminal 4 LED illuminates Battery positive (+) --> Terminal 5 Battery negative (-) --> Terminal 6 LED illuminates NG --> See step 6 OK --> See step 7
6. REPLACE COOLER CONTROL SWITCH SUB-ASSEMBLY. Refer to «DISASSEMBLY [01/2012 - ]»(ref-603940-S12932537562014031100000)
7. REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY (for Cool Box). Refer to «DISASSEMBLY [01/2012 - ]»(ref-603940-S12932537562014031100000)

1. INSPECT FUSE (A/C IG, ECU-B1) Remove the A/C IG fuse from the cowl side junction block LH. Remove the ECU-B1 fuse from the engine room relay block. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition ECU-B1 fuse Always Below 1 ohms A/C IG fuse NG --> REPLACE FUSE OK: Go to next step
2. CHECK HARNESS AND CONNECTOR (NO. 1 COOLER WIRING HARNESS - BATTERY) Disconnect the No. 1 cooler wiring harness sub-assembly connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition 4 (+B) - Body ground Always 11 to 14 V 1 (B) - Body ground Engine switch off Below 1 V Engine switch on (IG) 11 to 14 V NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
3. CHECK HARNESS AND CONNECTOR (NO. 1 COOLER WIRING HARNESS - BODY GROUND) Disconnect the No. 1 cooler wiring harness sub-assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 6 (L) - Body ground Always Below 1 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
4. CHECK NO. 1 COOLER WIRING HARNESS SUB-ASSEMBLY (OPERATION) Replace the No. 1 cooler wiring harness sub-assembly with a normal one and check that the condition returns to normal. OK Same problem does not occur. NG --> See step 5 OK --> REPLACE NO. 1 COOLER WIRING HARNESS SUB-ASSEMBLY
5. CHECK NO. 3 COOLER THERMISTOR Remove the No. 3 cooler thermistor. Refer to «DISASSEMBLY [01/2012 - ]»(ref-603940-S12932537562014031100000) . Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 1 (+) - 2 (-) -10°C (14°F) 7.30 to 9.10 kohms -5°C (23°F) 5.65 to 6.95 kohms 0°C (32°F) 4.40 to 5.35 kohms 5°C (41°F) 3.40 to 4.15 kohms 10°C (50°F) 2.70 to 3.25 kohms 15°C (59°F) 2.14 to 2.58 kohms 20°C (68°F) 1.71 to 2.05 kohms 25°C (77°F) 1.38 to 1.64 kohms 30°C (86°F) 1.11 to 1.32 kohms NOTE: Even slightly touching the sensor may change the resistance value. Be sure to hold the connector of the sensor. When measuring, the sensor temperature must be the same as the ambient temperature. HINT: As the temperature increases, the resistance decreases (See the graph in illustration). NG --> See step 6 OK --> See step 7
6. REPLACE NO. 3 COOLER THERMISTOR. Refer to «DISASSEMBLY [01/2012 - ]»(ref-603940-S12932537562014031100000)
7. REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY (for Cool Box). Refer to «DISASSEMBLY [01/2012 - ]»(ref-603940-S12932537562014031100000)

Scheme 295

The blower with fan motor sub-assembly is operated by signals from the air conditioning amplifier assembly. The blower with fan motor sub-assembly speed signals are transmitted by changes in the duty ratio.

Duty Ratio

The duty ratio is the ratio of the blower with fan motor sub-assembly OPEN time (T1) to the total of the blower with fan motor sub-assembly OPEN and LO time (T2).

The air conditioning amplifier assembly controls the blower with fan motor sub-assembly speed.

Scheme 296

Scheme 297

1. PERFORM ACTIVE TEST USING TECHSTREAM (BLOWER MOTOR SUB-ASSEMBLY) Select the Active Test, use the Techstream to generate a control command, and then check that the blower motor operates. Refer to «DATA LIST / ACTIVE TEST [01/2012 - ]»(ref-603931-S00063631292014031100000) . AIR CONDITIONER Tester Display Test Part Control Range Diagnostic Note Blower Motor Blower with fan motor sub-assembly Min.: 0, Max.: 31 - RESULT Result Proceed to Blower motor operates normally A Blower motor does not operate B Blower motor operates but does not change speed C B --> See step 2 C --> See step 6 A --> See step 9
2. CHECK HARNESS AND CONNECTOR (BLOWER MOTOR - BODY GROUND) Disconnect the A29 motor connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition A29-1 (GND) - Body ground Always Below 1 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
3. CHECK HARNESS AND CONNECTOR (BLOWER MOTOR - BATTERY) Disconnect the A29 motor connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition A29-3 (+B) - Body ground Always 11 to 14 V NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
4. CHECK BLOWER WITH FAN MOTOR SUB-ASSEMBLY (SI VOLTAGE) Disconnect the E36 amplifier connector. Reconnect the A29 motor connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition A29-2 (SI) - Body ground Engine switch on (IG) 4.5 to 5.5 V NG --> See step 8 OK: Go to next step
5. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER - BLOWER MOTOR) Disconnect the E36 amplifier connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition E36-3 (BLW) - E36-1 (GND) Engine switch on (IG) Blower switch off 4.5 to 5.5 V NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 10
6. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER - BLOWER MOTOR) Disconnect the E36 amplifier connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition E36-3 (BLW) - E36-1 (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 ASSEMBLY (BLW SIGNAL) Remove the air conditioning amplifier assembly with its connectors still connected. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S36487855842014031100000) . Using an oscilloscope, check the waveform. MEASUREMENT CONDITION Item Content Terminal No. (Symbol) E36-3 (BLW) - E36-1 (GND) Tool Setting 1 V/DIV., 500 μs/DIV. Condition Engine switch on (IG) Blower switch off --> lo OK Waveform is as shown in the illustration. HINT: Waveform varies with the blower level. NG --> See step 10 OK --> See step 8
8. REPLACE BLOWER WITH FAN MOTOR SUB-ASSEMBLY. Refer to «DISASSEMBLY [01/2012 - ]»(ref-603919-S42782376802014031100000)
9. PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE [01/2012 - ]»(ref-603931-S31954577002014031100000)
10. REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S36487855842014031100000)

1. INSPECT FUSE (ECU-IG No. 2) Remove the ECU-IG No. 2 fuse from the cowl side junction block LH. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition ECU-IG No. 2 fuse Always Below 1 ohms NG --> REPLACE FUSE OK: Go to next step
2. CHECK HARNESS AND CONNECTOR (NO. 2 AIR CONDITIONING CONTROL - BODY BATTERY AND GROUND) Disconnect the E55 No. 2 air conditioning control assembly connector. Measure the resistance and voltage according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition E55-1 (E) - Body ground Always Below 1 ohms Standard Voltage Tester Connection Switch Condition Specified Condition E55-6 (IG) - Body ground Engine switch on (IG) 11 to 14 V NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
3. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER - NO. 2 AIR CONDITIONING CONTROL) Disconnect the E55 No. 2 air conditioning control assembly connector. Disconnect the E36 amplifier connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition E36-21 (RLIN) - E55-4 (RLIN) Always Below 1 ohms E55-4 (RLIN) - Body ground Always 10 kohms or higher E36-21 (RLIN) - Body ground NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
4. CHECK NO. 2 AIR CONDITIONING CONTROL ASSEMBLY (OPERATION) Replace the No. 2 air conditioning control assembly with a new or properly functioning one. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S42675436862014031100000) . Operate the No. 2 air conditioning control assembly to check that it functions properly. OK No. 2 air conditioning control assembly function operates normally. NG --> See step 5 OK --> See step 6
5. REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S36487855842014031100000)
6. REPLACE NO. 2 AIR CONDITIONING CONTROL ASSEMBLY. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S42675436862014031100000)

1. PERFORM ACTIVE TEST USING TECHSTREAM (REAR BLOWER WITH FAN MOTOR SUB-ASSEMBLY) Select the Active Test, use the Techstream to generate a control command, and then check that the rear blower motor operates. Refer to «DATA LIST / ACTIVE TEST [01/2012 - ]»(ref-603931-S00063631292014031100000) . AIR CONDITIONER Tester Display Test Part Control Range Diagnostic Note Rear Blower Motor Rear blower with fan motor sub-assembly Min.: 0, Max.: 31 - RESULT Result Proceed to Rear blower motor operates normally A Rear blower motor does not operate B Rear blower motor operates but does not change speed C B --> See step 2 C --> See step 5 A --> See step 10
2. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING WIRING HARNESS - BODY GROUND) Disconnect the air conditioning wiring harness sub-assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 4 (GND) - Body ground Always Below 1 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
3. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING WIRING HARNESS - BATTERY) Disconnect the air conditioning wiring harness sub-assembly connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition 1 (+B) - Body ground Always 11 to 14 V NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
4. CHECK AIR CONDITIONING WIRING HARNESS SUB-ASSEMBLY (SI VOLTAGE) Disconnect the E36 amplifier connector. Reconnect the air conditioning wiring harness sub-assembly connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition 8 (SI) - Body ground Engine switch on (IG) 4.5 to 5.5 V NG --> See step 7 OK: Go to next step
5. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER - AIR CONDITIONING WIRING HARNESS) Disconnect the E36 amplifier connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition E36-17 (BLWH) - E36-1 (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
6. CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY (BLWH SIGNAL) Remove the air conditioning amplifier assembly with its connectors still connected. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S36487855842014031100000) . Using an oscilloscope, check the waveform. MEASUREMENT CONDITION Item Content Terminal No. (Symbol) E36-17 (BLWH) - E36-1 (GND) Tool Setting 1 V/DIV., 500 μs/DIV. 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 --> See step 11 OK: Go to next step
7. CHECK AIR CONDITIONING WIRING HARNESS SUB-ASSEMBLY (OPERATION) Replace the air conditioning wiring harness sub-assembly with a normal one and check that the condition returns to normal. OK Same problem does not occur. NG --> See step 8 OK --> REPLACE AIR CONDITIONING WIRING HARNESS SUB-ASSEMBLY
8. INSPECT REAR BLOWER WITH FAN MOTOR SUB-ASSEMBLY Disconnect the z31 motor connector. Connect the positive (+) lead of the battery to terminal 2 and the negative (-) lead to terminal 1, then check that the rear blower motor operates smoothly. OK The rear blower motor operates smoothly. NG --> See step 9 OK --> See step 12
9. REPLACE REAR BLOWER WITH FAN MOTOR SUB-ASSEMBLY. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S23354179822014031100000)
10. PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE [01/2012 - ]»(ref-603931-S31954577002014031100000)
11. REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S36487855842014031100000)
12. REPLACE BLOWER MOTOR CONTROL. Refer to «REMOVAL [01/2012 - ]»(ref-604051-S19648740492014031100000)

1. PERFORM ACTIVE TEST USING TECHSTREAM (REAR COOLING UNIT EXPANSION VALVE) Select the Active Test, use the Techstream to generate a control command, and then check that the rear cooling unit expansion valve operates. Refer to «DATA LIST / ACTIVE TEST [01/2012 - ]»(ref-603931-S00063631292014031100000) . AIR CONDITIONER Tester Display Test Part Control Range Diagnostic Note Rear A/C Mag Valve Rear Cooling Unit Expansion Valve ON or OFF - OK Rear magnetic valve operates normally. NG --> See step 2 OK --> See step 7
2. INSPECT FUSE (A/C IG) Remove the A/C IG fuse from the cowl side junction block LH. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition A/C IG fuse Always Below 1 ohms NG --> REPLACE FUSE OK: Go to next step
3. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING WIRING HARNESS - BATTERY) Disconnect the air conditioning wiring harness sub-assembly connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition 2 (+S) - Body ground Engine switch off Below 1 V Engine switch on (IG) 11 to 14 V NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
4. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING WIRING HARNESS - AIR CONDITIONING AMPLIFIER) Disconnect the air conditioning wiring harness sub-assembly connector. Disconnect the E36 amplifier connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 3 (RMGV) - E36-19 (RMGV) Always Below 1 ohms 3 (RMGV) - Body ground Always 10 kohms or higher E36-19 (RMGV) - Body ground NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
5. CHECK REAR COOLING UNIT EXPANSION VALVE (OPERATION) Replace the rear cooling unit expansion valve. Refer to «DISASSEMBLY [01/2012 - ]»(ref-603919-S02745817992014031100000) . HINT: Since the rear cooling unit expansion valve cannot be inspected while it is removed from the vehicle, replace the rear cooling unit expansion valve with a normal one and check that the condition returns to normal. OK Same problem does not occur. NG --> See step 6 OK --> See step 8
6. CHECK AIR CONDITIONING WIRING HARNESS SUB-ASSEMBLY (OPERATION) Replace the air conditioning wiring harness sub-assembly with a normal one and check that the condition returns to normal. OK Same problem does not occur. NG --> See step 9 OK --> REPLACE AIR CONDITIONING WIRING HARNESS SUB-ASSEMBLY
7. REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S36487855842014031100000)
8. REPLACE REAR COOLING UNIT EXPANSION VALVE. Refer to «DISASSEMBLY [01/2012 - ]»(ref-603919-S02745817992014031100000)
9. REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [01/2012 - ]»(ref-603919-S36487855842014031100000)

1. INSPECT FUSE (A/C IG) Remove the A/C IG fuse from the cowl side junction block LH. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition A/C IG fuse Always Below 1 ohms NG --> REPLACE FUSE OK: Go to next step
2. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER - BATTERY AND BODY GROUND) Disconnect the E35 amplifier connector. Disconnect the E36 amplifier connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition E36-5 (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 Tester Connection Condition Specified Condition E36-1 (GND) - Body ground Always Below 1 ohms E36-2 (E1) - Body ground E35-6 (E2) - Body ground NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 3
3. REPLACE PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE [01/2012 - ]»(ref-603931-S31954577002014031100000)

1. INSPECT FUSE (A/C) Remove the A/C fuse from the cowl side junction block LH. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition A/C fuse Always Below 1 ohms NG --> REPLACE FUSE OK: Go to next step
2. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER - BATTERY) Disconnect the E36 amplifier connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition E36-6 (+B1) - Body ground Always 11 to 14 V E36-7 (+B2) - Body ground NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 3
3. REPLACE PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE [01/2012 - ]»(ref-603931-S31954577002014031100000)