Controller (Heating, Ventilation & Air Conditioning): Other Hyundai Genesis I

Connector Pin Function

CONNECTOR PIN FUNCTION CHART

Scheme 70

1. Self-diagnosis process The F.A.T.C. module self test feature will detect electrical malfunction and provide error codes for system components with suspected failures. NOTE: DTC data can be retrieved from the control panel directly or from the DLC using the Hi-Scan Pro.
2. How to read self-diagnostic code After the display panel flickers three times every 0.5 second, the corresponding fault code flickers on the setup temperature display panel every 0.5 second and will show two figures. Codes are displayed in numerical format.

Fault code

FAULT CODE CHART

DIAGNOSTIC TROUBLE CODES CHART

Scheme 71

Scheme 72

Scheme 73

1. 3. Fault code display Continuance operation : DTC code is one Continuance operation : DTC code is more two Step operation Normal or one fault code is same a continuance DTC code is more two
2. 4. If fault codes are displayed during the check, Inspect malfunction causes by referring to «FAULT CODES»(ref-345976-S20781941392009102300000) .
3. 5. Fail safe In-car temperature sensor: Control with the value of 25°C (77°F) Ambient temperature sensor: Control with the value of 20°C (67°F) Evaporator temperature sensor: Control with the value of -2°C (28.4°F) Temperature control actuator (Air mix potentiometer): If temperature setting 17°C-24.5°C, fix at maximum cooling position. If temperature setting 25°C-32°C, fix at maximum heating position Mode control actuator (Direction potentiometer): Fix vent position, while selecting vent mode. Fix defrost position, while selecting all except vent mode. Intake control actuator: Fix fresh position, while selecting fresh mode. Fix recirculation position, while selecting recirculation mode. AQS sensor: AQS operation OFF. Intake position : The position before selecting AQS switch. Photo sensor: Control with the value 0w/m2 Console temp switch : When the console temperature S/W voltage is less than 0.1 V; Fix cool position. When the console temperature S/W voltage is more than 4.9 V; Fix warm position. Console vent potentiometer: When the console temperature S/W voltage is less than 2.5 V; Fix cool position. When the console temperature S/W voltage is more than 2.5 V; Fix warm position. Console temp potentiometer: When the console temperature S/W voltage is less than 2.5 V; Fix cool position. When the console temperature S/W voltage is more than 2.5 V; Fix warm position. Console door potentiometer: Fix close position, while selecting vent mode. Fix open position, while selecting all except vent mode. Auto defog sensor: Control with the value of 0%.

Scheme 74

Scheme 75

Scheme 76

Scheme 77

Scheme 78

1. Disconnect the negative (-) battery terminal.
2. Remove the cluster garnish (A).
3. Remove the center garnish (A).
4. Remove the heater & A/C controller (A) after loosening 4 screws.
5. Disconnect the connector (A) and then remove the center facia panel.
6. Remove the heater & A/C controller (A) from center facia panel.
7. Installation is the reverse order of removal.

Scheme 79

CONNECTOR PIN FUNCTION CHART

CONNECTOR PIN FUNCTION CHART

Scheme 80

Scheme 81

1. Disconnect the negative (-) battery terminal.
2. Remove the crash pad. (Refer to «CRASH PAD»(ref-345931-S27758735332009102300000) )
3. Disconnect the control unit connector (A).
4. Remove the control unit (A).
5. Installation is the reverse order of removal.

Scheme 82

Check passenger air mix actuator

1. Ignition "OFF"
2. Disconnect passenger air mix actuator and A/C control unit main harness connector.
3. Connect (+) terminal of battery to WARM (+) of passenger air mix actuator and (-) terminal to COOL (-). (Component side)
4. Verify that the temperature actuator operates to the cool position
5. Verify that the temperature actuator operates to the warm position with reverse connecting. (WARM (+) and COOL (-)). (Component side) Specification: Refer the specifications in chart below) Actuator harness WARM (+) COOL (-) Door position Battery terminal 12 V ground Max.warm ground 12 V Max. cool see scheme 1) Function of the actuator motor according to terminal connection type, (observe safety regulations)
6. Is "Door position" display near the specified value? YES Go to " «CHECK POTENTIOMETER»(ref-345976-S15118294522009102300000) " procedure. NO Substitute with a known-good passenger air mix actuator and check for proper operation. If the problem is corrected, replace passenger air mix actuator and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S01806188052009102300000) " procedure.

Check potentiometer

1. Ignition "OFF"
2. Connect passenger air mix actuator and A/C control unit main harness connector.
3. Ignition "ON"
4. Measure voltage between Signal (F/B) terminal of passenger air mix actuator harness connector and Sensor ground (-) terminal of A/C-ECU harness connector. (Component side) Specification: Refer the specifications in chart below) Door position Voltage Max. cool 0.3 ± 0.15V 7Max. warm 4.7 ± 0.15V (Scheme 70)) Voltage value of Air Mix potentiometer as a function of temp door position.
5. Is "voltage" display near the specified value? YES Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S01806188052009102300000) " procedure. NO Substitute with a known-good passenger air mix actuator and check for proper operation. If the problem is corrected, replace passenger air mix actuator and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S01806188052009102300000) " procedure.

Verification of Vehicle Repair

After a repair, it is essential to verify that the fault has been corrected.

1. Connect scantool and select "Diagnostic Trouble Codes (DTCs)" mode and then clear DTC.
2. Operate the vehicle and monitor the DTC on the scantool.
3. Are any DTCs present? YES Go to the applicable troubleshooting procedure. NO System is performing to specification at this time.

1. Ignition "OFF"
2. Disconnect passenger air mix actuator and A/C control unit main harness connector.
3. Connect (+) terminal of battery to WARM (+) of passenger air mix actuator and (-) terminal to COOL (-). (Component side)
4. Verify that the temperature actuator operates to the cool position
5. Verify that the temperature actuator operates to the warm position with reverse connecting. (WARM (+) and COOL (-)). (Component side) Specification: Refer the specifications in chart below) Actuator harness WARM (+) COOL (-) Door position Battery terminal 12 V ground Max.warm ground 12 V Max.cool see scheme 1) Function of the actuator motor according to terminal connection type, (observe safety regulations)
6. Is "Door position" display near the specified value? YES Go to " «CHECK POTENTIOMETER»(ref-345976-S22504515652009102300000) " procedure. NO Substitute with a known-good passenger air mix actuator and check for proper operation. If the problem is corrected, replace passenger air mix actuator and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S01806188052009102300000) " procedure.

1. Ignition "OFF"
2. Connect passenger air mix actuator and A/C control unit main harness connector.
3. Ignition "ON"
4. Measure voltage between Signal (F/B) terminal of passenger air mix actuator harness connector and Sensor ground (-) terminal of A/C-ECU harness connector. (Component side) Specification: Refer the specifications in chart below) Door position Voltage Max. cool 0.3 ± 0.15V Max. warm 4.7 ± 0.15V (Scheme 70)) Voltage value of Air Mix potentiometer as a function of temp door position.
5. Is "voltage" display near the specified value? YES Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S01806188052009102300000) " procedure. NO Substitute with a known-good passenger air mix actuator and check for proper operation. If the problem is corrected, replace passenger air mix actuator and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S01806188052009102300000) " procedure.

After a repair, it is essential to verify that the fault has been corrected.

1. Connect scantool and select "Diagnostic Trouble Codes (DTCs)" mode and then clear DTC.
2. Operate the vehicle and monitor the DTC on the scantool.
3. Are any DTCs present? YES Go to the applicable troubleshooting procedure. NO System is performing to specification at this time.

Scheme 83

Check Intake actuator

1. Ignition "OFF"
2. Disconnect Intake actuator and A/C control unit main harness connector.
3. Connect (+) terminal of battery to FRE (+) of intake actuator and (-) terminal to REC (-). (Component side)
4. Verify that the actuator operates to the REC position
5. Verify that the temperature actuator operates to the FRE position with reverse connecting. (REC (-) and FRE (+)) (Component side) Specification: Refer the specifications in chart below) Actuator harness FRE (+) REC (-) Door position Battery terminal 12 V ground FRE ground 12 V REC see scheme 1) Function of the actuator motor according to terminal connection type, (observe safety regulations)
6. Is "Door position" display near the specified value? YES Go to " «CHECK POTENTIOMETER»(ref-345976-S28512219312009102300000) " procedure. NO Substitute with a known-good Intake actuator and check for proper operation. If the problem is corrected, replace Intake actuator and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S11245013762009102300000) " procedure.

1. Ignition "OFF"
2. Disconnect Intake actuator and A/C control unit main harness connector.
3. Ignition "ON" (ENGINE "OFF").
4. Measure voltage between Signal (F/B) terminal of Intake actuator harness connector and chassis ground. (Component side) Specification: Refer the specifications in chart below) Door position Voltage FRE 0.3 ± 0.15V REC 4.7 ± 0.15V (Scheme 70)) Voltage value of intake potentiometer as a function of intake door position.
5. Is "voltage" display near the specified value? YES Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S11245013762009102300000) " procedure. NO Substitute with a known-good Intake actuator and check for proper operation. If the problem is corrected, replace Intake actuator and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S11245013762009102300000) " procedure.

After a repair, it is essential to verify that the fault has been corrected.

1. Connect scantool and select "Diagnostic Trouble Codes (DTCs)" mode and then clear DTC.
2. Operate the vehicle and monitor the DTC on the scantool.
3. Are any DTCs present? YES Go to the applicable troubleshooting procedure. NO System is performing to specification at this time.

1. Ignition "OFF"
2. Disconnect Intake actuator and A/C control unit main harness connector.
3. Connect (+) terminal of battery to FRE (+) of intake actuator and (-) terminal to REC (-). (Component side)
4. Verify that the actuator operates to the REC position
5. Verify that the temperature actuator operates to the FRE position with reverse connecting. (REC (-) and FRE (+)) (Component side) Specification: Refer the specifications in chart below) Actuator harness FRE (+) REC (-) Door position Battery terminal 12 V ground FRE ground 12 V REC see scheme 1) Function of the actuator motor according to terminal connection type, (observe safety regulations)
6. Is "Door position" display near the specified value? YES Go to " «CHECK POTENTIOMETER»(ref-345976-S37525543732009102300000) " procedure. NO Substitute with a known-good Intake actuator and check for proper operation. If the problem is corrected, replace Intake actuator and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S00011278182009102300000) " procedure.

1. Ignition "OFF"
2. Disconnect Intake actuator and A/C control unit main harness connector.
3. Ignition "ON" (ENGINE "OFF").
4. Measure voltage between Signal (F/B) terminal of Intake actuator harness connector and chassis ground. (Component side) Specification: Refer the specifications in chart below) Door position Voltage FRE 0.3 ± 0.15V REC 4.7 ± 0.15V (Scheme 70)) Voltage value of intake potentiometer as a function of intake door position.
5. Is "voltage" display near the specified value? YES Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S00011278182009102300000) " procedure. NO Substitute with a known-good Intake actuator and check for proper operation. If the problem is corrected, replace Intake actuator and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S00011278182009102300000) " procedure.

After a repair, it is essential to verify that the fault has been corrected.

1. Connect scantool and select "Diagnostic Trouble Codes (DTCs)" mode and then clear DTC.
2. Operate the vehicle and monitor the DTC on the scantool.
3. Are any DTCs present? YES Go to the applicable troubleshooting procedure. NO System is performing to specification at this time.

Scheme 84

Check Incar temp.sensor

1. Ignition "OFF"
2. Disconnect Incar temp.sensor and Connect A/C control unit main harness connector.
3. Measure resistance between Signal (+) terminal of Incar temp.sensor harness connector and Sensor ground harness connector. (Component side) Specification: Refer the specifications in chart below) Temperature (°C/°F) Resistance (kohms) Temperature (°C/°F) Resistance (kohms) -20/-4 285.6 20/68 37.4 -10/14 169 30/86 24.1 0/32 97.7 40/104 15.9 10/50 59.67 50/122 10.8 see scheme 1) Specifications: Resistance value of incar sensor as a function of temperature. The actual value may differ from it according to various engine condition.
4. Is "resistance" display near the specified value? YES Go to " «CHECK A/C-ECU»(ref-345976-S00606385312009102300000) " procedure. NO Substitute with a known-good Incar temp.sensor and check for proper operation. If the problem is corrected, replace Incar temp.sensor and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S20472857552009102300000) " procedure.

Check A/C-ECU

1. Ignition "OFF"
2. Disconnect Incar temp.sensor and Connect A/C control unit main harness connector.
3. Ignition "ON" (ENGINE "OFF").
4. Measure voltage between Signal (+) terminal of Incar temp.sensor harness connector and chassis ground. (Component side) Specification: approx. 5V
5. Is "voltage" display near the specified value? YES Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S20472857552009102300000) " procedure. NO Substitute with a known-good A/C-ECU and check for proper operation. If the problem is corrected, replace A/C-ECU and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S20472857552009102300000) " procedure.

After a repair, it is essential to verify that the fault has been corrected.

1. Connect scantool and select "Diagnostic Trouble Codes (DTCs)" mode and then clear DTC.
2. Operate the vehicle and monitor the DTC on the scantool.
3. Are any DTCs present? YES Go to the applicable troubleshooting procedure. NO System is performing to specification at this time.

Monitor Scantool data

1. Connect scantool with diagnostic connector.
2. Warm up the engine to normal engine temperature after engine starts.
3. Select and monitor "In-car temperature sensor" parameter.
4. Is the Incar temperature sensor normal? YES Go to Inspection and Repair procedure. NO This is a intermittent problem caused by poor contact of component or Control Unit Thoroughly check the looseness, poor connection, bent, corrosion, contamination, deformation or damage of connector. Repair or replace as necessary and then, go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S26298915932009102300000) " procedure.

1. Ignition "OFF"
2. Disconnect Incar temp.sensor and Connect A/C control unit main harness connector.
3. Measure resistance between Signal (+) terminal of Incar temp.sensor harness connector and Sensor ground harness connector. (Component side) Specification: Refer the specifications in chart below) Temperature (°C/°F) Resistance (kohms) Temperature (°C/°F) Resistance (kohms) -20/-4 285.6 20/68 37.4 -27/-17 169 30/86 24.1 0/32 97.7 40/104 15.9 10/50 59.67 50/122 10.8 see scheme 1) Specifications: Resistance value of incar sensor as a function of temperature. The actual value may differ from it according to various engine condition.
4. Is "resistance" display near the specified value? YES Go to " «CHECK A/C-ECU»(ref-345976-S38178171912009102300000) " procedure. NO Substitute with a known-good Incar temp.sensor and check for proper operation. If the problem is corrected, replace Incar temp.sensor and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S26298915932009102300000) " procedure.

1. Ignition "OFF"
2. Disconnect Incar temp.sensor and Connect A/C control unit main harness connector.
3. Ignition "ON" (ENGINE "OFF").
4. Measure voltage between Signal (+) terminal of Incar temp.sensor harness connector and chassis ground. (Component side) Specification: approx. 5V
5. Is "voltage" display near the specified value? YES Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S26298915932009102300000) " procedure. NO Substitute with a known-good A/C-ECU and check for proper operation. If the problem is corrected, replace A/C-ECU and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S26298915932009102300000) " procedure.

After a repair, it is essential to verify that the fault has been corrected.

1. Connect scantool and select "Diagnostic Trouble Codes (DTCs)" mode and then clear DTC.
2. Operate the vehicle and monitor the DTC on the scantool.
3. Are any DTCs present? YES Go to the applicable troubleshooting procedure. NO System is performing to specification at this time.

Scheme 85

Check ambient sensor

1. Ignition "OFF"
2. Disconnect ambient sensor and Connect A/C control unit main harness connector.
3. Measure resistance between Signal (+) terminal of ambient sensor harness connector and Sensor ground harness connector. (Component side) Specification: Refer the specifications in chart below) Temperature (°C/°F) Resistance (kohms) Temperature (°C/°F) Resistance (kohms) -20/-4 271.4 50/122 11 0/32 95.1 60/140 7.58 25/77 30 see scheme 1) Specifications: Resistance value of ambient sensor as a function of temperature. The actual value may differ from it according to various engine condition.
4. Is "resistance" display near the specified value? YES Go to " «CHECK A/C-ECU»(ref-345976-S01857888892009102300000) " procedure. NO Substitute with a known-good ambient sensor and check for proper operation. If the problem is corrected, replace ambient sensor and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S25189622202009102300000) " procedure.

1. Ignition "OFF"
2. Disconnect Ambient Temp, sensor (+) and Connect A/C control unit main harness connector.
3. Ignition "ON" (ENGINE "OFF").
4. Measure voltage between Signal (+) terminal of Ambient Temp, sensor (+) harness connector and chassis ground. (Component side) Specification: approx. 5V
5. Is "voltage" display near the specified value? YES Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S25189622202009102300000) " procedure. NO Substitute with a known-good A/C-ECU and check for proper operation. If the problem is corrected, replace A/C-ECU and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S25189622202009102300000) " procedure.

After a repair, it is essential to verify that the fault has been corrected.

1. Connect scantool and select "Diagnostic Trouble Codes (DTCs)" mode and then clear DTC.
2. Operate the vehicle and monitor the DTC on the scantool.
3. Are any DTCs present? YES Go to the applicable troubleshooting procedure. NO System is performing to specification at this time.

1. Connect scantool with diagnostic connector.
2. Warm up the engine to normal engine temperature after engine starts.
3. Select and monitor "Ambient Air Temperature sensor" parameter.
4. Is the ambient sensor normal? YES Go to Inspection and Repair procedure. NO This is a intermittent problem caused by poor contact of component or Control Unit Thoroughly check the looseness, poor connection, bent, corrosion, contamination, deformation or damage of connector. Repair or replace as necessary and then, go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S18287490742009102300000) " procedure.

1. Ignition "OFF"
2. Disconnect ambient sensor and Connect A/C control unit main harness connector.
3. Measure resistance between Signal (+) terminal of ambient sensor harness connector and Sensor ground harness connector. (Component side) Specification: Refer the specifications in chart below) Temperature (°C/°F) Resistance (kohms) Temperature (°C/°F) Resistance (kohms) -20/-4 271.4 50/122 11 0/32 95.1 60/140 7.58 25/77 30 see scheme 1) Specifications: Resistance value of ambient sensor as a function of temperature. The actual value may differ from it according to various engine condition.
4. Is "resistance" display near the specified value? YES Go to " «CHECK A/C-ECU»(ref-345976-S11231849752009102300000) " procedure. NO Substitute with a known-good ambient sensor and check for proper operation. If the problem is corrected, replace ambient sensor and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S18287490742009102300000) " procedure.

1. Ignition "OFF"
2. Disconnect Ambient Temp, sensor (+) and Connect A/C control unit main harness connector.
3. Ignition "ON" (ENGINE "OFF").
4. Measure voltage between Signal (+) terminal of Ambient Temp, sensor (+) harness connector and chassis ground. (Component side) Specification: approx. 5V
5. Is "voltage" display near the specified value? YES Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S18287490742009102300000) " procedure. NO Substitute with a known-good A/C-ECU and check for proper operation. If the problem is corrected, replace A/C-ECU and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S18287490742009102300000) " procedure.

After a repair, it is essential to verify that the fault has been corrected.

1. Connect scantool and select "Diagnostic Trouble Codes (DTCs)" mode and then clear DTC.
2. Operate the vehicle and monitor the DTC on the scantool.
3. Are any DTCs present? YES Go to the applicable troubleshooting procedure. NO System is performing to specification at this time.

Scheme 86

Check Evaporator sensor

1. Ignition "OFF"
2. Disconnect Evaporator sensor and Connect A/C control unit main harness connector.
3. Measure resistance between Signal (+) terminal of Evaporator sensor harness connector and Sensor ground harness connector. (Component side) Specification: Refer the specifications in chart below) Temperature (°C/°F) Resistance (kohms) Temperature (°C/°F) Resistance (kohms) -20/-4 43.3 20/68 12.1 0/32 27.6 30/86 8.3 10/50 18 40/104 5.8 see scheme 1) Specifications: Resistance value of Evaporator sensor as a function of temperature. The actual value may differ from it according to various engine condition.
4. Is "resistance" display near the specified value? YES Go to " «CHECK A/C-ECU»(ref-345976-S26186166172009102300000) " procedure. NO Substitute with a known-good Evaporator sensor and check for proper operation. If the problem is corrected, replace Evaporator sensor and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S36629718942009102300000) " procedure.

1. Ignition "OFF"
2. Disconnect Evaporator sensor and Connect A/C control unit main harness connector.
3. Ignition "ON" (ENGINE "OFF").
4. Measure voltage between Signal (+) terminal of Evaporator sensor harness connector and chassis ground. (Component side) Specification: approx. 5V
5. Is "voltage" display near the specified value? YES Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S36629718942009102300000) " procedure. NO Substitute with a known-good A/C-ECU and check for proper operation. If the problem is corrected, replace A/C-ECU and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S36629718942009102300000) " procedure.

After a repair, it is essential to verify that the fault has been corrected.

1. Connect scantool and select "Diagnostic Trouble Codes (DTCs)" mode and then clear DTC.
2. Operate the vehicle and monitor the DTC on the scantool.
3. Are any DTCs present? YES Go to the applicable troubleshooting procedure. NO System is performing to specification at this time.

1. Connect scantool with diagnostic connector.
2. Warm up the engine to normal engine temperature after engine starts.
3. Select and monitor "Evaporator sensor" parameter on scantool.
4. Is the Evaporator Sensor normal? YES Go to Inspection and Repair procedure. NO This is a intermittent problem caused by poor contact of component or Control Unit Thoroughly check the looseness, poor connection, bent, corrosion, contamination, deformation or damage of connector. Repair or replace as necessary and then, go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S38968510302009102300000) " procedure.

1. Ignition "OFF"
2. Disconnect Evaporator sensor and Connect A/C control unit main harness connector.
3. Measure resistance between Signal (+) terminal of Evaporator sensor harness connector and Sensor ground harness connector. (Component side) Specification: Refer the specifications in chart below) Temperature (°C/°F) Resistance (kohms) Temperature (°C/°F) Resistance (kohms) -20/-4 43.3 20/68 12.1 0/32 27.6 30/86 8.3 10/50 18 40/104 5.8 see scheme 1) Specifications: Resistance value of Evaporator sensor as a function of temperature. The actual value may differ from it according to various engine condition.
4. Is "resistance" display near the specified value? YES Go to " «CHECK A/C-ECU»(ref-345976-S17053794112009102300000) " procedure. NO Substitute with a known-good Evaporator sensor and check for proper operation. If the problem is corrected, replace Evaporator sensor and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S38968510302009102300000) " procedure.

1. Ignition "OFF"
2. Disconnect Evaporator sensor and Connect A/C control unit main harness connector.
3. Ignition "ON" (ENGINE "OFF").
4. Measure voltage between Signal (+) terminal of Evaporator sensor harness connector and chassis ground. (Component side) Specification: approx. 5V
5. Is "voltage" display near the specified value? YES Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S38968510302009102300000) " procedure. NO Substitute with a known-good A/C-ECU and check for proper operation. If the problem is corrected, replace A/C-ECU and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S38968510302009102300000) " procedure.

After a repair, it is essential to verily that the fault has been corrected.

1. Connect scantool and select "Diagnostic Trouble Codes (DTCs)" mode and then clear DTC.
2. Operate the vehicle and monitor the DTC on the scantool.
3. Are any DTCs present? YES Go to the applicable troubleshooting procedure. NO System is performing to specification at this time.

Scheme 87

Check Driver air mix actuator

1. Ignition "OFF"
2. Disconnect Driver air mix actuator and A/C control unit main harness connector.
3. Connect (+) terminal of battery to WARM (+) of Driver air mix actuator and (-) terminal to COOL (-). (Component side)
4. Verify that the temperature actuator operates to the cool position
5. Verify that the temperature actuator operates to the warm position with reverse connecting. (WARM (+) and COOL (-)). (Component side) Specification: Refer the specifications in chart below) Actuator harness WARM (+) COOL (-) Door position Battery terminal 12 V ground Max.warm ground 12 V Max.cool see scheme 1) Function of the actuator motor according to terminal connection type, (observe safety regulations)
6. Is "Door position" display near the specified value? YES Go to " «CHECK POTENTIOMETER»(ref-345976-S28612590652009102300000) " procedure. NO Substitute with a known-good Driver air mix actuator and check for proper operation. If the problem is corrected, replace Driver air mix actuator and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S42867259662009102300000) " procedure.

1. Ignition "OFF"
2. Connect Driver air mix actuator and A/C control unit main harness connector.
3. Ignition "ON"
4. Measure voltage between Signal (F/B) terminal of Driver air mix actuator harness connector and Sensor ground (-) terminal of A/C-ECU harness connector. (Component side) Specification: Refer the specifications in chart below) Door position Voltage Max. cool 0.3 ± 0.15V Max. warm 4.7 ± 0.15V (Scheme 70)) Voltage value of Air Mix potentiometer as a function of temp door position.
5. Is "voltage" display near the specified value? YES Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S42867259662009102300000) " procedure. NO Substitute with a known-good Driver air mix actuator and check for proper operation. If the problem is corrected, replace Driver air mix actuator and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S42867259662009102300000) " procedure.

After a repair, it is essential to verify that the fault has been corrected.

1. Connect scantool and select "Diagnostic Trouble Codes (DTCs)" mode and then clear DTC.
2. Operate the vehicle and monitor the DTC on the scantool.
3. Are any DTCs present? YES Go to the applicable troubleshooting procedure. NO System is performing to specification at this time.

1. Ignition "OFF"
2. Disconnect Driver air mix actuator and A/C control unit main harness connector.
3. Connect (+) terminal of battery to WARM (+) of Driver air mix actuator and (-) terminal to COOL (-). (Component side)
4. Verify that the temperature actuator operates to the cool position
5. Verify that the temperature actuator operates to the warm position with reverse connecting. (WARM (+) and COOL (-)). (Component side) Specification: Refer the specifications in chart below) Actuator harness WARM (+) COOL (-) Door position Battery terminal 12V ground Max.warm ground 12V Max. cool see scheme 1) Function of the actuator motor according to terminal connection type, (observe safety regulations)
6. Is "Door position" display near the specified value? YES Go to " «CHECK POTENTIOMETER»(ref-345976-S14403217502009102300000) " procedure. NO Substitute with a known-good Driver air mix actuator and check for proper operation. If the problem is corrected, replace Driver air mix actuator and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S19382092092009102300000) " procedure.

1. Ignition "OFF"
2. Connect Driver air mix actuator and A/C control unit main harness connector.
3. Ignition "ON"
4. Measure voltage between Signal (F/B) terminal of Driver air mix actuator harness connector and Sensor ground (-) terminal of A/C-ECU harness connector. (Component side) Specification: Refer the specifications in chart below) Door position Voltage Max. cool 0.3 ± 0.15V Max. warm 4.7 ± 0.15V (Scheme 70)) Voltage value of Air Mix potentiometer as a function of temp door position.
5. Is "voltage" display near the specified value? YES Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S19382092092009102300000) " procedure. NO Substitute with a known-good Driver air mix actuator and check for proper operation. If the problem is corrected, replace Driver air mix actuator and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S19382092092009102300000) " procedure.

After a repair, it is essential to verify that the fault has been corrected.

1. Connect scantool and select "Diagnostic Trouble Codes (DTCs)" mode and then clear DTC.
2. Operate the vehicle and monitor the DTC on the scantool.
3. Are any DTCs present? YES Go to the applicable troubleshooting procedure. NO System is performing to specification at this time.

Scheme 88

Check Driver Direction actuator

1. Ignition "OFF"
2. Disconnect Driver Direction actuator and A/C control unit main harness connector.
3. Connect (+) terminal of battery to WARM (+) of Driver Direction actuator and (-) terminal to COOL (-). (Component side)
4. Verify that the temperature actuator operates to the cool position
5. Verify that the temperature actuator operates to the warm position with reverse connecting. (WARM (+) and COOL (-)). (Component side) Specification: Refer the specifications in chart below) Actuator harness WARM (+) COOL (-) Door position Battery terminal 12 V ground VENT. Mode ground 12 V DEF.Mode see scheme 1) Function of the actuator motor according to terminal connection type, (observe safety regulations)
6. Is "Door position" display near the specified value? YES Go to " «CHECK POTENTIOMETER»(ref-345976-S39157633872009102300000) " procedure. NO Substitute with a known-good Driver Direction actuator and check for proper operation. If the problem is corrected, replace Driver Direction actuator and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S21610764982009102300000) " procedure.

1. Ignition "OFF"
2. Connect Driver Direction actuator and A/C control unit main harness connector.
3. Ignition "ON"
4. Measure voltage between Signal (F/B) terminal of Driver Direction actuator harness connector and Sensor ground (-) terminal of A/C-ECU harness connector. (Component side) Specification: Refer the specifications in chart below) Mode Door Position Voltage VENT 0.3 ± 0.15V BI-LEVEL 1.4 ± 0.4V FLOOR 2.5 ± 0.4V MIX 3.6 ± 0.4V DEF 4.7 ± 0.15V (Scheme 70)) Voltage value of Direction potentiometer as a function of position of mode switch
5. Is "voltage" display near the specified value? YES Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S21610764982009102300000) " procedure. NO Substitute with a known-good Driver Direction actuator and check for proper operation. If the problem is corrected, replace Driver Direction actuator and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S21610764982009102300000) " procedure.

After a repair, it is essential to verify that the fault has been corrected.

1. Connect scantool and select "Diagnostic Trouble Codes (DTCs)" mode and then clear DTC.
2. Operate the vehicle and monitor the DTC on the scantool.
3. Are any DTCs present? YES Go to the applicable troubleshooting procedure. NO System is performing to specification at this time.

1. Ignition "OFF"
2. Disconnect Driver Direction actuator and A/C control unit main harness connector.
3. Connect (+) terminal of battery to WARM (+) of Driver Direction actuator and (-) terminal to COOL (-). (Component side)
4. Verify that the temperature actuator operates to the cool position
5. Verify that the temperature actuator operates to the warm position with reverse connecting. (WARM (+) and COOL (-)). (Component side) Specification: Refer the specifications in chart below) Actuator harness WARM (+) COOL (-) Door position Battery terminal 12 V ground VENT. Mode ground 12 V DEF.Mode see scheme 1) Function of the actuator motor according to terminal connection type, (observe safety regulations)
6. Is "Door position" display near the specified value? YES Go to " «CHECK POTENTIOMETER»(ref-345976-S02213227882009102300000) " procedure. NO Substitute with a known-good Driver Direction actuator and check for proper operation. If the problem is corrected, replace Driver Direction actuator and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S05252641652009102300000) " procedure.

1. Ignition "OFF"
2. Connect Driver Direction actuator and A/C control unit main harness connector.
3. Ignition "ON"
4. Measure voltage between Signal (F/B) terminal of Driver Direction actuator harness connector and Sensor ground (-) terminal of A/C-ECU harness connector. (Component side) Specification: Refer the specifications in chart below) Mode Door Position Voltage VENT 0.3 ± 0.15V BI-LEVEL 1.4 ± 0.4V FLOOR 2.5 ± 0.4V MIX 3.6 ± 0.4V DEF 4.7 ± 0.15V (Scheme 70)) Voltage value of Direction potentiometer as a function of position of mode switch
5. Is "voltage" display near the specified value? YES Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S05252641652009102300000) " procedure. NO Substitute with a known-good Driver Direction actuator and check for proper operation. If the problem is corrected, replace Driver Direction actuator and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S05252641652009102300000) " procedure.

After a repair, it is essential to verify that the fault has been corrected.

1. Connect scantool and select "Diagnostic Trouble Codes (DTCs)" mode and then clear DTC.
2. Operate the vehicle and monitor the DTC on the scantool.
3. Are any DTCs present? YES Go to the applicable troubleshooting procedure. NO System is performing to specification at this time.

Scheme 89

Check AQS sensor

1. Ignition "OFF"
2. Connect AQS sensor and Connect A/C control unit main harness connector.
3. Ignition "ON"
4. Measure voltage between Signal (F/B) terminal of AQS sensor harness connector and chassis ground. (Component side) Specification: Refer the specifications in chart below) Operating condition Voltage Note Right after IGN "ON" 2.5V ± 0.3V Stay at Pre-Position normal 4.3V ± 0.3V Intake door: REC Gas detected 0.9V ± 0.3V Intake door: FRE Preheating Time: (35 ± 2sec) see scheme 1) Voltage value of AQS sensor as a function of position of operating condition.
5. Is the measured voltage within specification? YES Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S37533513792009102300000) " procedure. NO Substitute with a known-good AQS sensor and check for proper operation. If the problem is corrected, replace AQS sensor and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S37533513792009102300000) " procedure.

After a repair, it is essential to verify that the fault has been corrected.

1. Connect scantool and select "Diagnostic Trouble Codes (DTCs)" mode and then clear DTC.
2. Operate the vehicle and monitor the DTC on the scantool.
3. Are any DTCs present? YES Go to the applicable troubleshooting procedure. NO System is performing to specification at this time.

1. Connect scantool with diagnostic connector.
2. Warm up the engine to normal engine temperature after engine starts.
3. Select and monitor "AQS sensor" parameter on scantool.
4. Is the AQS sensor normal? YES Go to Inspection and Repair procedure. NO This is a intermittent problem caused by poor contact of component or Control Unit Thoroughly check the looseness, poor connection, bent, corrosion, contamination, deformation or damage of connector. Repair or replace as necessary and then, go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S20746534892009102300000) " procedure.

1. Ignition "OFF"
2. Connect AQS sensor and Connect A/C control unit main harness connector.
3. Ignition "ON"
4. Measure voltage between Signal (F/B) terminal of AQS sensor harness connector and chassis ground. (Component side) Specification: Refer the specifications in chart below) Operating condition Voltage Note Right after IGN "ON" 2.5V ± 0.3V Stay at Pre-Position normal 4.3V ± 0.3V Intake door: REC Gas detected 0.9V ± 0.3V Intake door: FRE Preheating Time: (35 ± 2sec) see scheme 1) Voltage value of AQS sensor as a function of position of operating condition.
5. Is the measured voltage within specification? YES Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S20746534892009102300000) " procedure. NO Substitute with a known-good AQS sensor and check for proper operation. If the problem is corrected, replace AQS sensor and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S20746534892009102300000) " procedure.

After a repair, it is essential to verify that the fault has been corrected.

1. Connect scantool and select "Diagnostic Trouble Codes (DTCs)" mode and then clear DTC.
2. Operate the vehicle and monitor the DTC on the scantool.
3. Are any DTCs present? YES Go to the applicable troubleshooting procedure. NO System is performing to specification at this time.

1. Connect scantool with diagnostic connector.
2. Warm up the engine to normal engine temperature after engine starts.
3. Select and monitor "AQS sensor" parameter on scantool.
4. Is the AQS sensor normal? YES Go to Inspection and Repair procedure. NO This is a intermittent problem caused by poor contact of component or Control Unit Thoroughly check the looseness, poor connection, bent, corrosion, contamination, deformation or damage of connector. Repair or replace as necessary and then, go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S36392474442009102300000) " procedure.

1. Ignition "OFF"
2. Connect AQS sensor and Connect A/C control unit main harness connector.
3. Ignition "ON"
4. Measure voltage between Signal (F/B) terminal of AQS sensor harness connector and chassis ground. (Component side) Specification: Refer the specifications in chart below) Operating condition Voltage Note Right after IGN "ON" 2.5V ± 0.3V Stay at Pre-Position normal 4.3V ± 0.3V Intake door: REC Gas detected 0.9V ± 0.3V Intake door: FRE Preheating Time: (35 ± 2sec) see scheme 1) Voltage value of AQS sensor as a function of position of operating condition.
5. Is the measured voltage within specification? YES Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S36392474442009102300000) " procedure. NO Substitute with a known-good AQS sensor and check for proper operation. If the problem is corrected, replace AQS sensor and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S36392474442009102300000) " procedure.

After a repair, it is essential to verify that the fault has been corrected.

1. Connect scantool and select "Diagnostic Trouble Codes (DTCs)" mode and then clear DTC.
2. Operate the vehicle and monitor the DTC on the scantool.
3. Are any DTCs present? YES Go to the applicable troubleshooting procedure. NO System is performing to specification at this time.

Scheme 90

Check Console temp actuator

1. Ignition "OFF"
2. Disconnect Console temp actuator and A/C control unit main harness connector.
3. Connect (+) terminal of battery to WARM (+) of Console temp actuator and (-) terminal to COOL (-). (Component side)
4. Verify that the temperature actuator operates to the cool position
5. Verify that the temperature actuator operates to the warm position with reverse connecting. (WARM (+) and COOL (-)). (Component side) Specification: Refer the specifications in chart below) Actuator harness WARM (+) COOL (-) Door position Battery terminal 12 V ground Max.warm ground 12 V Max. cool see scheme 1) Function of the actuator motor according to terminal connection type, (observe safety regulations)
6. Is "Door position" display near the specified value? YES Go to " «CHECK POTENTIOMETER»(ref-345976-S21998202012009102300000) " procedure. NO Substitute with a known-good Console temp actuator and check for proper operation. If the problem is corrected, replace Console temp actuator and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S23152144642009102300000) " procedure.

1. Ignition "OFF"
2. Connect Console temp actuator and A/C control unit main harness connector.
3. Ignition "ON"
4. Measure voltage between Signal (F/B) terminal of Console temp actuator harness connector and Sensor ground (-) terminal of A/C-ECU harness connector. (Component side) Specification: Refer the specifications in chart below) Door position Voltage COOL 1.18 ± 0.15V WARM 3.82 ± 0.15V (Scheme 70)) Voltage value of Console temp actuator as a function of position of mode switch
5. Is "voltage" display near the specified value? YES Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S23152144642009102300000) " procedure. NO Substitute with a known-good Console temp actuator and check for proper operation. If the problem is corrected, replace Console temp actuator and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S23152144642009102300000) " procedure.

After a repair, it is essential to verify that the fault has been corrected.

1. Connect scantool and select "Diagnostic Trouble Codes (DTCs)" mode and then clear DTC.
2. Operate the vehicle and monitor the DTC on the scantool.
3. Are any DTCs present? YES Go to the applicable troubleshooting procedure. NO System is performing to specification at this time.

1. Ignition "OFF"
2. Disconnect Console temp actuator and A/C control unit main harness connector.
3. Connect (+) terminal of battery to WARM (+) of Console temp actuator and (-) terminal to COOL (-). (Component side)
4. Verify that the temperature actuator operates to the cool position
5. Verify that the temperature actuator operates to the warm position with reverse connecting. (WARM (+) and COOL (-)). (Component side) Specification: Refer the specifications in chart below) Actuator harness WARM (+) COOL (-) Door position Battery terminal 12 V ground Max.warm ground 12 V Max.cool see scheme 1) Function of the actuator motor according to terminal connection type, (observe safety regulations)
6. Is "Door position" display near the specified value? YES Go to " «CHECK POTENTIOMETER»(ref-345976-S03883362792009102300000) " procedure. NO Substitute with a known-good Console temp actuator and check for proper operation. If the problem is corrected, replace Console temp actuator and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S32135200692009102300000) " procedure.

1. Ignition "OFF"
2. Connect Console temp actuator and A/C control unit main harness connector.
3. Ignition "ON"
4. Measure voltage between Signal (F/B) terminal of Console temp actuator harness connector and Sensor ground (-) terminal of A/C-ECU harness connector. (Component side) Specification: Refer the specifications in chart below) Door position Voltage COOL 1.18 ± 0.15V WARM 3.82 ± 0.15V (Scheme 70)) Voltage value of Console temp actuator as a function of position of mode switch
5. Is "voltage" display near the specified value? YES Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S32135200692009102300000) " procedure. NO Substitute with a known-good Console temp actuator and check for proper operation. If the problem is corrected, replace Console temp actuator and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S32135200692009102300000) " procedure.

After a repair, it is essential to verify that the fault has been corrected.

1. Connect scantool and select "Diagnostic Trouble Codes (DTCs)" mode and then clear DTC.
2. Operate the vehicle and monitor the DTC on the scantool.
3. Are any DTCs present? YES Go to the applicable troubleshooting procedure. NO System is performing to specification at this time.

Check Console temp A_actuator

1. Ignition "OFF"
2. Disconnect Console temp actuator "A" and A/C control unit main harness connector.
3. Connect (+) terminal of battery to WARM (+) of Console temp actuator "A" and (-) terminal to COOL (-). (Component side)
4. Verify that the temperature actuator operates to the cool position
5. Verify that the temperature actuator operates to the warm position with reverse connecting. (WARM (+) and COOL (-)). (Component side) Specification: Refer the specifications in chart below) Actuator harness WARM (+) COOL (-) Door position Battery terminal 12 V ground Max.warm ground 12 V Max. cool see scheme 1) Function of the actuator motor according to terminal connection type, (observe safety regulations)
6. Is "Door position" display near the specified value? YES Go to " «CHECK POTENTIOMETER»(ref-345976-S40637387842009102300000) " procedure. NO Substitute with a known-good Console temp actuator "A" and check for proper operation. If the problem is corrected, replace Console temp actuator "A" and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S27731184332009102300000) " procedure.

1. Ignition "OFF"
2. Connect Console temp actuator "A" and A/C control unit main harness connector.
3. Ignition "ON"
4. Measure voltage between Signal (F/B) terminal of Console temp actuator "A" harness connector and Sensor ground (-) terminal of A/C-ECU harness connector. (Component side) Specification: Refer the specifications in chart below) Door position Voltage COOL 1.18 ± 0.15V WARM 3.82 ± 0.15V (Scheme 70)) Voltage value of Console temp actuator "A" as a function of position of mode switch
5. Is "voltage" display near the specified value? YES Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S27731184332009102300000) " procedure. NO Substitute with a known-good Console temp actuator and check for proper operation. If the problem is corrected, replace Console temp actuator and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S27731184332009102300000) " procedure.

After a repair, it is essential to verify that the fault has been corrected.

1. Connect scantool and select "Diagnostic Trouble Codes (DTCs)" mode and then clear DTC.
2. Operate the vehicle and monitor the DTC on the scantool.
3. Are any DTCs present? YES Go to the applicable troubleshooting procedure. NO System is performing to specification at this time.

1. Ignition "OFF"
2. Disconnect Console temp actuator "A" and A/C control unit main harness connector.
3. Connect (+) terminal of battery to WARM (+) of Console temp actuator "A" and (-) terminal to COOL (-). (Component side)
4. Verify that the temperature actuator operates to the cool position
5. Verify that the temperature actuator operates to the warm position with reverse connecting. (WARM (+) and COOL (-)). (Component side) Specification: Refer the specifications in chart below) Actuator harness WARM (+) COOL (-) Door position Battery terminal 12 V ground Max.warm ground 12 V Max. cool see scheme 1) Function of the actuator motor according to terminal connection type, (observe safety regulations)
6. Is "Door position" display near the specified value? YES Go to " «CHECK POTENTIOMETER»(ref-345976-S24656603842009102300000) " procedure. NO Substitute with a known-good Console temp actuator "A" and check for proper operation. If the problem is corrected, replace Console temp actuator "A" and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S26069105352009102300000) " procedure.

1. Ignition "OFF"
2. Connect Console temp actuator "A" and A/C control unit main harness connector.
3. Ignition "ON"
4. Measure voltage between Signal (F/B) terminal of Console temp actuator "A" harness connector and Sensor ground (-) terminal of A/C-ECU harness connector. (Component side) Specification: Refer the specifications in chart below) Door position Voltage COOL 1.18 ± 0.15V WARM 3.82 ± 0.15V (Scheme 70)) Voltage value of Console temp actuator "A" as a function of position of mode switch
5. Is "voltage" display near the specified value? YES Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S26069105352009102300000) " procedure. NO Substitute with a known-good Console temp actuator and check for proper operation. If the problem is corrected, replace Console temp actuator and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S26069105352009102300000) " procedure.

After a repair, it is essential to verify that the fault has been corrected.

1. Connect scantool and select "Diagnostic Trouble Codes (DTCs)" mode and then clear DTC.
2. Operate the vehicle and monitor the DTC on the scantool.
3. Are any DTCs present? YES Go to the applicable troubleshooting procedure. NO System is performing to specification at this time.

1. Ignition "OFF"
2. Connect Console temperature actuator & Switch and A/C control unit main harness connector.
3. Ignition "ON"
4. Measure voltage between Signal (F/B) terminal of Console temperature actuator & Switch harness connector and Sensor ground (-) terminal of A/C-ECU harness connector. (Component side) Specification: Refer the specifications in chart below) Console Switch Voltage COOL 0.3 ± 0.15V WARM 4.7 ± 0.15V see scheme 1) Voltage changes according to Console temperature control switch position
5. Is "voltage" display near the specified value? YES Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S23414135392009102300000) " procedure. NO Substitute with a known-good Console temperature actuator & Switch and check for proper operation. If the problem is corrected, replace Console temperature actuator & Switch and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S23414135392009102300000) " procedure.

After a repair, it is essential to verify that the fault has been corrected.

1. Connect scantool and select "Diagnostic Trouble Codes (DTCs)" mode and then clear DTC.
2. Operate the vehicle and monitor the DTC on the scantool.
3. Are any DTCs present? YES Go to the applicable troubleshooting procedure. NO System is performing to specification at this time.

1. Connect scantool with diagnostic connector.
2. Warm up the engine to normal temperature after engine starts
3. Check that the value of Console temperature actuator and switch is changeable according to changing direction with switch. Specification: 1. COOL Position : About below 5.5%. 2. Warm Position : About 90%.
4. Is the value of the Console air mix switch potentiometer normal? YES This is a intermittent problem caused by poor contact of component or Control Unit Thoroughly check the looseness, poor connection, bent, corrosion, contamination, deformation or damage of connector. Repair or replace as necessary and then, go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S14196690372009102300000) " procedure. NO Go to Inspection and Repair procedure.

1. Ignition "OFF"
2. Connect Console temperature actuator & Switch and A/C control unit main harness connector.
3. Ignition "ON"
4. Measure voltage between Signal (F/B) terminal of Console temperature actuator & Switch harness connector and Sensor ground (-) terminal of A/C-ECU harness connector. (Component side) Specification: Refer the specifications in chart below) Console Switch Voltage COOL 0.3 ± 0.15V WARM 4.7 ± 0.15V see scheme 1) Voltage changes according to Console temperature control switch position
5. Is "voltage" display near the specified value? YES Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S14196690372009102300000) " procedure. NO Substitute with a known-good Console temperature actuator & Switch and check for proper operation. If the problem is corrected, replace Console temperature actuator & Switch and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S14196690372009102300000) " procedure.

After a repair, it is essential to verify that the fault has been corrected.

1. Connect scantool and select "Diagnostic Trouble Codes (DTCs)" mode and then clear DTC.
2. Operate the vehicle and monitor the DTC on the scantool.
3. Are any DTCs present? YES Go to the applicable troubleshooting procedure. NO System is performing to specification at this time.

Scheme 91

After a repair, it is essential to verify that the fault has been corrected.

1. Connect scantool and select "Diagnostic Trouble Codes (DTCs)" mode and then clear DTC.
2. Operate the vehicle and monitor the DTC on the scantool.
3. Are any DTCs present? YES Go to the applicable troubleshooting procedure. NO System is performing to specification at this time.

1. Connect scantool with diagnostic connector.
2. Warm up the engine to normal temperature after engine starts
3. Select and monitor "Auto defogger humidity sensor" parameter on scantool.
4. Is the defogger sensor normal? YES Go to Inspection and Repair procedure. NO This is a intermittent problem caused by poor contact of component or Control Unit Thoroughly check the looseness, poor connection, bent, corrosion, contamination, deformation or damage of connector. Repair or replace as necessary and then, go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S07712357602009102300000) " procedure.

Check Auto Defog sensor

1. Connect scantool with Diagnostic Connector.
2. Warm up the engine to normal temperature after engine starts.
3. Select and monitor "Auto defogger sensor" parameter with scantool.
4. Check frequency or the value of auto Defog sensor is changed on the scantool by increasing or decreasing humidity near the defog sensor Specification: Refer the specifications in chart below) (%RH) (Hz) (%RH) (Hz) 0 37.19 60 34.8 20 36.4 80 34 40 35.6 100 33.2 see scheme 1) The frequency of auto defog sensor according to the humidity
5. Is the measured value within the specification? YES Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S07712357602009102300000) " procedure. NO Substitute with a known-good Auto Defog sensor and check for proper operation. If the problem is corrected, replace Auto Defog sensor and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S07712357602009102300000) " procedure.

After a repair, it is essential to verify that the fault has been corrected.

1. Connect scantool and select "Diagnostic Trouble Codes (DTCs)" mode and then clear DTC.
2. Operate the vehicle and monitor the DTC on the scantool.
3. Are any DTCs present? YES Go to the applicable troubleshooting procedure. NO System is performing to specification at this time.

Scheme 92

Check Auto Defog actuator

1. Ignition "OFF"
2. Disconnect Auto Defog actuator and A/C control unit main harness connector.
3. Connect (+) terminal of battery to OPEN (+) of Auto Defog actuator and (-) terminal to CLOSE (-). (Component side)
4. Verify that the Auto Defog actuator operates to the OPEN position.
5. Verify that the Auto Defog actuator operates to the OPEN position with reverse connecting. (OPEN (+) and CLOSE (-)). (Component side) Specification: Refer the specifications in chart below) Actuator harness OPEN (+) CLOSE (-) Door position Battery terminal 12V ground OPEN ground 12V CLOSE see scheme 1) Function of the actuator motor according to terminal connection type, (observe safety regulations)
6. Is "Door position" display near the specified value? YES "Check potentiometer" procedure. NO Substitute with a known-good Auto Defog actuator and check for proper operation. If the problem is corrected, replace Auto Defog actuator and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S13814708132009102300000) " procedure.

1. Ignition "OFF"
2. Connect Auto Defog actuator and A/C control unit main harness connector.
3. Ignition "ON"
4. Measure voltage between Signal (F/B) terminal of Auto Defog actuator harness connector and Sensor ground (-) terminal of A/C-ECU harness connector. (Component side) Specification: Refer the specifications in chart below) Door position Voltage CLOSE (VENT, B/L) About 4.7V FLOOR About 3.94V MIX About 3.29V OPEN (DEF) About 1V (Scheme 70)) Voltage value of Auto Defog actuator as a function of position of mode switch.
5. Is "voltage" display near the specified value? YES Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S13814708132009102300000) " procedure. NO Substitute with a known-good Auto Defog actuator and check for proper operation. If the problem is corrected, replace Auto Defog actuator and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S13814708132009102300000) " procedure.

After a repair, it is essential to verify that the fault has been corrected.

1. Connect scantool and select "Diagnostic Trouble Codes (DTCs)" mode and then clear DTC.
2. Operate the vehicle and monitor the DTC on the scantool.
3. Are any DTCs present? YES Go to the applicable troubleshooting procedure. NO System is performing to specification at this time.

1. Ignition "OFF"
2. Disconnect Auto Defog actuator and A/C control unit main harness connector.
3. Connect (+) terminal of battery to OPEN (+) of Auto Defog actuator and (-) terminal to CLOSE (-). (Component side)
4. Verify that the Auto Defog actuator operates to the OPEN position.
5. Verify that the Auto Defog actuator operates to the OPEN position with reverse connecting. (OPEN (+) and CLOSE (-)). (Component side) Specification: Refer the specifications in chart below) Actuator harness OPEN (+) CLOSE (-) Door position Battery terminal 12V ground OPEN ground 12V CLOSE see scheme 1) Function of the actuator motor according to terminal connection type, (observe safety regulations)
6. Is "Door position" display near the specified value? YES Go to " «CHECK POTENTIOMETER»(ref-345976-S39560941752009102300000) " procedure. NO Substitute with a known-good Auto Defog actuator and check for proper operation. If the problem is corrected, replace Auto Defog actuator and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S16042635522009102300000) " procedure.

1. Ignition "OFF"
2. Connect Auto Defog actuator and A/C control unit main harness connector.
3. Ignition "ON"
4. Measure voltage between Signal (F/B) terminal of Auto Defog actuator harness connector and Sensor ground (-) terminal of A/C-ECU harness connector. (Component side) Specification: Refer the specifications in chart below) Door position Voltage CLOSE (VENT, B/L) About 4.7V FLOOR About 3.94V MIX About 3.29V OPEN (DEF) About 1V (Scheme 70)) Voltage value of Auto Defog actuator as a function of position of mode switch.
5. Is "voltage" display near the specified value? YES Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S16042635522009102300000) " procedure. NO Substitute with a known-good Auto Defog actuator and check for proper operation. If the problem is corrected, replace Auto Defog actuator and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S16042635522009102300000) " procedure.

After a repair, it is essential to verify that the fault has been corrected.

1. Connect scantool and select "Diagnostic Trouble Codes (DTCs)" mode and then clear DTC.
2. Operate the vehicle and monitor the DTC on the scantool.
3. Are any DTCs present? YES Go to the applicable troubleshooting procedure. NO System is performing to specification at this time.

1. Ignition "OFF"
2. Disconnect Auto Defog actuator and A/C control unit main harness connector.
3. Connect (+) terminal of battery to OPEN (+) of Auto Defog actuator and (-) terminal to CLOSE (-). (Component side)
4. Verify that the Auto Defog actuator operates to the OPEN position.
5. Verify that the Auto Defog actuator operates to the OPEN position with reverse connecting. (OPEN (+) and CLOSE (-)). (Component side) Specification: Refer the specifications in chart below) Actuator harness OPEN (+) CLOSE (-) Door position Battery terminal 12 V ground OPEN ground 12 V CLOSE see scheme 1) Function of the actuator motor according to terminal connection type, (observe safety regulations)
6. Is "Door position" display near the specified value? YES Go to " «CHECK POTENTIOMETER»(ref-345976-S00820265202009102300000) " procedure. NO Substitute with a known-good Auto Defog actuator and check for proper operation. If the problem is corrected, replace Auto Defog actuator and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S17900245182009102300000) " procedure.

1. Ignition "OFF"
2. Connect Auto Defog actuator and A/C control unit main harness connector.
3. Ignition "ON"
4. Measure voltage between Signal (F/B) terminal of Auto Defog actuator harness connector and Sensor ground (-) terminal of A/C-ECU harness connector. (Component side) Specification: Refer the specifications in chart below) Door position Voltage CLOSE (VENT, B/L) About 4.7V FLOOR About 3.94V MIX About 3.29V OPEN (DEF) About 1V (Scheme 70)) Voltage value of Auto Defog actuator as a function of position of mode switch.
5. Is "voltage" display near the specified value? YES Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S17900245182009102300000) " procedure. NO Substitute with a known-good Auto Defog actuator and check for proper operation. If the problem is corrected, replace Auto Defog actuator and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S17900245182009102300000) " procedure.

After a repair, it is essential to verify that the fault has been corrected.

1. Connect scantool and select "Diagnostic Trouble Codes (DTCs)" mode and then clear DTC.
2. Operate the vehicle and monitor the DTC on the scantool.
3. Are any DTCs present? YES Go to the applicable troubleshooting procedure. NO System is performing to specification at this time.

After a repair, it is essential to verify that the fault has been corrected.

1. Connect scantool and select "Diagnostic Trouble Codes (DTCs)" mode and then clear DTC.
2. Operate the vehicle and monitor the DTC on the scantool.
3. Are any DTCs present? YES Go to the applicable troubleshooting procedure. NO System is performing to specification at this time.

1. Connect scantool with diagnostic connector.
2. Check that there is DTC on the VDC side.
3. Check VDC first if there is any DTC on the VDC side and confirm that it is erasable
4. If no DTC, select "Wheel Speed sensor" parameter on the VDC side.
5. Check that the value of wheel speed sensor is changeable with driving the vehicle Check wheel speed is changeable together with vehicle speed changes
6. Is the wheel speed sensor normal? YES Check that there is any CAN related DTC and then, repair or replace as necessary. Finally, check that is possible to clear this DTC This is a intermittent problem caused by poor contact of Control Module Thoroughly check the looseness, poor connection, bent, corrosion, contamination, deformation or damage of connector. Repair or replace as necessary and then, go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S38645396812009102300000) " procedure. NO Check wheel speed sensor, circuit, or related component. Repair or replace as necessary and then, go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S38645396812009102300000) " procedure.

After a repair, it is essential to verify that the fault has been corrected.

1. Connect scantool and select "Diagnostic Trouble Codes (DTCs)" mode and then clear DTC.
2. Operate the vehicle and monitor the DTC on the scantool.
3. Are any DTCs present? YES Go to the applicable troubleshooting procedure. NO System is performing to specification at this time.

After a repair, it is essential to verify that the fault has been corrected.

1. Connect scantool and select "Diagnostic Trouble Codes (DTCs)" mode and then clear DTC.
2. Operate the vehicle and monitor the DTC on the scantool.
3. Are any DTCs present? YES Go to the applicable troubleshooting procedure. NO System is performing to specification at this time.

Scheme 93

1. Ignition "OFF"
2. Disconnect Driver air mix actuator and A/C control unit main harness connector.
3. Connect (+) terminal of battery to WARM (+) of Driver air mix actuator and (-) terminal to COOL (-). (Component side)
4. Verify that the temperature actuator operates to the cool position
5. Verify that the temperature actuator operates to the warm position with reverse connecting. (WARM (+) and COOL (-)). (Component side) Specification: Refer the specifications in chart below) Actuator harness WARM (+) COOL (-) Door position Battery terminal 12V ground Max.warm ground 12V Max.cool see scheme 1) Function of the actuator motor according to terminal connection type, (observe safety regulations)
6. Is "Door position" display near the specified value? YES Go to " «CHECK POTENTIOMETER»(ref-345976-S39353053582009102300000) " procedure. NO Substitute with a known-good Driver air mix actuator and check for proper operation. If the problem is corrected, replace Driver air mix actuator and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S07721381362009102300000) " procedure.

1. Ignition "OFF"
2. Connect Driver air mix actuator and A/C control unit main harness connector.
3. Ignition "ON"
4. Measure voltage between Signal (F/B) terminal of Driver air mix actuator harness connector and Sensor ground (-) terminal of A/C-ECU harness connector. (Component side) Specification: Refer the specifications in chart below) Door position Voltage Max. cool 0.3 ± 0.15V Max. warm 4.7 ± 0.15V (Scheme 70)) Voltage value of Air Mix potentiometer as a function of temp door position.
5. Is "voltage" display near the specified value? YES Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S07721381362009102300000) " procedure. NO Substitute with a known-good Driver air mix actuator and check for proper operation. If the problem is corrected, replace Driver air mix actuator and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S07721381362009102300000) " procedure.

After a repair, it is essential to verify that the fault has been corrected.

1. Connect scantool and select "Diagnostic Trouble Codes (DTCs)" mode and then clear DTC.
2. Operate the vehicle and monitor the DTC on the scantool.
3. Are any DTCs present? YES Go to the applicable troubleshooting procedure. NO System is performing to specification at this time.

Scheme 94

1. Ignition "OFF"
2. Disconnect Intake actuator and A/C control unit main harness connector.
3. Connect (+) terminal of battery to FRE (+) of intake actuator and (-) terminal to REC (-). (Component side)
4. Verify that the actuator operates to the REC position
5. Verify that the temperature actuator operates to the FRE position with reverse connecting. (REC (-) and FRE (+)) (Component side) Specification: Refer the specifications in chart below) Actuator harness FRE (+) REC (-) Door position Battery terminal 12V ground FRE ground 12V REC see scheme 1) Function of the actuator motor according to terminal connection type, (observe safety regulations)
6. Is "Door position" display near the specified value? YES GO to " «CHECK POTENTIOMETER»(ref-345976-S01351110562009102300000) " procedure. NO Substitute with a known-good Intake actuator and check for proper operation. If the problem is corrected, replace Intake actuator and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S41839993292009102300000) " procedure.

1. Ignition "OFF"
2. Disconnect Intake actuator and A/C control unit main harness connector.
3. Ignition "ON" (ENGINE "OFF").
4. Measure voltage between Signal (F/B) terminal of Intake actuator harness connector and chassis ground. (Component side) Specification: Refer the specifications in chart below) Door position Voltage FRE 0.3 ± 0.15V REC 4.7 ± 0.15V (Scheme 70)) Voltage value of intake potentiometer as a function of intake door position.
5. Is "voltage" display near the specified value? YES Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S41839993292009102300000) " procedure. NO Substitute with a known-good Intake actuator and check for proper operation. If the problem is corrected, replace Intake actuator and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S41839993292009102300000) " procedure.

After a repair, it is essential to verify that the fault has been corrected.

1. Connect scantool and select "Diagnostic Trouble Codes (DTCs)" mode and then clear DTC.
2. Operate the vehicle and monitor the DTC on the scantool.
3. Are any DTCs present? YES Go to the applicable troubleshooting procedure. NO System is performing to specification at this time.

Scheme 95

1. Ignition "OFF"
2. Disconnect Driver Direction actuator and A/C control unit main harness connector.
3. Connect (+) terminal of battery to WARM (+) of Driver air mix actuator and (-) terminal to COOL (-). (Component side)
4. Verify that the temperature actuator operates to the cool position
5. Verify that the temperature actuator operates to the warm position with reverse connecting. (WARM (+) and COOL (-)). (Component side) Specification: Refer the specifications in chart below) Actuator harness WARM (+) COOL (-) Door position Battery terminal 12V ground VENT. Mode ground 12V DEF.Mode see scheme 1) Function of the actuator motor according to terminal connection type, (observe safety regulations)
6. Is "Door position" display near the specified value? YES Go to " «CHECK POTENTIOMETER»(ref-345976-S36470394702009102300000) " procedure. NO Substitute with a known-good Driver air mix actuator and check for proper operation. If the problem is corrected, replace Driver air mix actuator and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S03854880392009102300000) " procedure.

1. Ignition "OFF"
2. Connect Driver Direction actuator and A/C control unit main harness connector.
3. Ignition "ON"
4. Measure voltage between Signal (F/B) terminal of Driver Direction actuator harness connector and Sensor ground (-) terminal of A/C-ECU harness connector. (Component side) Specification: Refer the specifications in chart below) Mode Door Position Voltage VENT 0.3 ± 0.15V BI-LEVEL 1.4 ± 0.4V FLOOR 2.5 ± 0.4V MIX 3.6 ± 0.4V DEF 4.7 ± 0.15V (Scheme 70)) Voltage value of Direction potentiometer as a function of position of mode switch
5. Is "voltage" display near the specified value? YES Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S03854880392009102300000) " procedure. NO Substitute with a known-good Driver air mix actuator and check for proper operation. If the problem is corrected, replace Driver air mix actuator and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S03854880392009102300000) " procedure.

After a repair, it is essential to verify that the fault has been corrected.

1. Connect scantool and select "Diagnostic Trouble Codes (DTCs)" mode and then clear DTC.
2. Operate the vehicle and monitor the DTC on the scantool.
3. Are any DTCs present? YES Go to the applicable troubleshooting procedure. NO System is performing to specification at this time.

Scheme 96

1. Ignition "OFF"
2. Disconnect passenger air mix actuator and A/C control unit main harness connector.
3. Connect (+) terminal of battery to WARM (+) of passenger air mix actuator and (-) terminal to COOL (-). (Component side)
4. Verify that the temperature actuator operates to the cool position
5. Verify that the temperature actuator operates to the warm position with reverse connecting. (WARM (+) and COOL (-)). (Component side) Specification: Refer the specifications in chart below) Actuator harness WARM (+) COOL (-) Door position Battery terminal 12V ground Max.warm ground 12V Max.cool see scheme 1) Function of the actuator motor according to terminal connection type, (observe safety regulations)
6. Is "Door position" display near the specified value? YES Go to " «CHECK POTENTIOMETER»(ref-345976-S11684740382009102300000) " procedure. NO Substitute with a known-good passenger air mix actuator and check for proper operation. If the problem is corrected, replace passenger air mix actuator and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S32170369392009102300000) " procedure.

1. Ignition "OFF"
2. Connect passenger air mix actuator and A/C control unit main harness connector.
3. Ignition "ON"
4. Measure voltage between Signal (F/B) terminal of passenger air mix actuator harness connector and Sensor ground (-) terminal of A/C-ECU harness connector. (Component side) Specification: Refer the specifications in chart below) Door position Voltage Max. cool 0.3 ± 0.15V Max. warm 4.7 ± 0.15V (Scheme 70)) Voltage value of Air Mix potentiometer as a function of temp door position.
5. Is "voltage" display near the specified value? YES Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S32170369392009102300000) " procedure. NO Substitute with a known-good passenger air mix actuator and check for proper operation. If the problem is corrected, replace passenger air mix actuator and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S32170369392009102300000) " procedure.

After a repair, it is essential to verify that the fault has been corrected.

1. Connect scantool and select "Diagnostic Trouble Codes (DTCs)" mode and then clear DTC.
2. Operate the vehicle and monitor the DTC on the scantool.
3. Are any DTCs present? YES Go to the applicable troubleshooting procedure. NO System is performing to specification at this time.

Scheme 97

1. Ignition "OFF"
2. Disconnect Console temp actuator and A/C control unit main harness connector.
3. Connect (+) terminal of battery to WARM (+) of Console temp actuator and (-) terminal to COOL (-). (Component side)
4. Verify that the temperature actuator operates to the cool position
5. Verify that the temperature actuator operates to the warm position with reverse connecting. (WARM (+) and COOL (-)). (Component side) Specification: Refer the specifications in chart below) Actuator harness WARM (+) COOL (-) Door position Battery terminal 12V ground Max. warm ground 12V Max.cool see scheme 1) Function of the actuator motor according to terminal connection type, (observe safety regulations)
6. Is "Door position" display near the specified value? YES Go to " «CHECK POTENTIOMETER»(ref-345976-S41168155972009102300000) " procedure. NO Substitute with a known-good Console temp actuator and check for proper operation. If the problem is corrected, replace Console temp actuator and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S29367591902009102300000) " procedure.

1. Ignition "OFF"
2. Connect Console temp actuator and A/C control unit main harness connector.
3. Ignition "ON"
4. Measure voltage between Signal (F/B) terminal of Console temp actuator harness connector and Sensor ground (-) terminal of A/C-ECU harness connector. (Component side) Specification: Refer the specifications in chart below) Door position Voltage COOL 1.18 ± 0.15V WARM 3.82 ± 0.15V (Scheme 70)) Voltage value of Console temp actuator as a function of position of mode switch
5. Is "voltage" display near the specified value? YES Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S29367591902009102300000) " procedure. NO Substitute with a known-good Console temp actuator and check for proper operation. If the problem is corrected, replace Console temp actuator and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S29367591902009102300000) " procedure.

After a repair, it is essential to verify that the fault has been corrected.

1. Connect scantool and select "Diagnostic Trouble Codes (DTCs)" mode and then clear DTC.
2. Operate the vehicle and monitor the DTC on the scantool.
3. Are any DTCs present? YES Go to the applicable troubleshooting procedure. NO System is performing to specification at this time.

1. Ignition "OFF"
2. Disconnect Console temp actuator "A" and A/C control unit main harness connector.
3. Connect (+) terminal of battery to WARM (+) of Console temp actuator "A" and (-) terminal to COOL (-). (Component side)
4. Verify that the temperature actuator operates to the cool position
5. Verify that the temperature actuator operates to the warm position with reverse connecting. (WARM (+) and COOL (-)). (Component side) Specification: Refer the specifications in chart below) Actuator harness WARM (+) COOL (-) Door position Battery terminal 12V ground Max.warm ground 12V Max.cool see scheme 1) Function of the actuator motor according to terminal connection type, (observe safety regulations)
6. Is "Door position" display near the specified value? YES Go to " «CHECK POTENTIOMETER»(ref-345976-S42297967872009102300000) " procedure. NO Substitute with a known-good Console temp actuator "A" and check for proper operation. If the problem is corrected, replace Console temp actuator "A" and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S13564632372009102300000) " procedure.

1. Ignition "OFF"
2. Connect Console temp actuator "A" and A/C control unit main harness connector.
3. Ignition "ON"
4. Measure voltage between Signal (F/B) terminal of Console temp actuator "A" harness connector and Sensor ground (-) terminal of A/C-ECU harness connector. (Component side) Specification: Refer the specifications in chart below) Door position Voltage COOL 1.18 ± 0.15V WARM 3.82 ± 0.15V (Scheme 70)) Voltage value of Console temp actuator "A" as a function of position of mode switch
5. Is "voltage" display near the specified value? YES Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S13564632372009102300000) " procedure. NO Substitute with a known-good Console temp actuator "A" and check for proper operation. If the problem is corrected, replace Console temp actuator "A" and then go to " «VERIFICATION OF VEHICLE REPAIR»(ref-345976-S13564632372009102300000) " procedure.

After a repair, it is essential to verify that the fault has been corrected.

1. Connect scantool and select "Diagnostic Trouble Codes (DTCs)" mode and then clear DTC.
2. Operate the vehicle and monitor the DTC on the scantool.
3. Are any DTCs present? YES Go to the applicable troubleshooting procedure. NO System is performing to specification at this time.