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Air Conditioning System Diagnosis: Specifications Kia Rio III

Automatic HVAC System 38 illustrations ~2516 words

Specification

Voltage value of Intake potentiometer as a function of position of Intake door

Door positionVoltage
FRE0.4V
REC4.6V

Scheme 80

Scheme 80: Diagnostic Circuit Diagram

Scheme 81

Scheme 81: Monitor GDS data
  1. Check Actuation Test Connect GDS with diagnostic connector. Warm up the engine to normal temperature after engine start. Select "Intake Potentiometer" parameter on the current data with GDS. Perform Actuation Test for Air Inlet Mode Selection - Recirculation/Fresh in order. With performing Actuation test, check that the value of each position sensors are changing. Specification : Recirculation: About 90%, Fresh: About 10%. Are the value of each position sensors changed when performing actuation test? 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-536160-S12014404302013031400000) " procedure. NO Go to " «Inspection Repair»(ref-536160-S28919598732013031400000) " procedure.

Voltage value of Intake potentiometer as a function of position of Intake door

Door positionVoltage
FRE0.4V
REC4.6V

Scheme 82

Scheme 82: Diagnostic Circuit Diagram

Scheme 83

Scheme 83: Monitor GDS data
  1. Check Actuation Test Connect GDS with diagnostic connector. Warm up the engine to normal temperature after engine start. Select "Intake Potentiometer" parameter on the current data with GDS. Perform Actuation Test for Air Inlet Mode Selection - Recirculation/Fresh in order. With performing Actuation test, check that the value of each position sensors are changing. Specification : Recirculation: About 90%, Fresh: About 10%. Are the value of each position sensors changed when performing actuation test? 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-536160-S40387827582013031400000) " procedure. NO Go to " «Inspection/Repair»(ref-536160-S30864743722013031400000) " procedure.

Resistance value of incar temp sensor as a function of temperature. ±1.2%

Temperature(°C/°F)Resistance(kohms)Temperature(°C/°F)Resistance(kohms)
20/-428420/6837
10/-1416430/8624
0/329740/10416
10/505950/12210

Scheme 84

Scheme 84: Diagnostic Circuit Diagram

Scheme 85

Scheme 85: Monitor GDS data
  1. Connect GDS 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 This is a intermittent problem caused by poor contact of component or A/C 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-536160-S34750348202013031400000) " procedure. NO Substitute with a known good In-Car Temp. Sensor and check for proper operation. If the problem is corrected, replace In-Car Temp. Sensor and then go to " «Verification of Vehicle Repair»(ref-536160-S34750348202013031400000) " procedure.

Resistance value of incar temp sensor as a function of temperature.

Temperature(°C/°F)Resistance(kohms)Temperature(°C/°F)Resistance(kohms)
20/-428420/6837
10/-1416430/8624
0/329740/10416
10/505950/12210

Scheme 86

Scheme 86: Diagnostic Circuit Diagram

Scheme 87

Scheme 87: Monitor GDS data
  1. Connect GDS 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 This is a intermittent problem caused by poor contact of component or A/C 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-536160-S00760530502013031400000) " procedure. NO Substitute with a known good In-Car Temp. Sensor and check for proper operation. If the problem is corrected, replace In-Car Temp. Sensor and then go to " «Verification of Vehicle Repair»(ref-536160-S00760530502013031400000) " procedure.

Resistance value of incar temp sensor as a function of temperature.±3%

Temperature(°C/°F)Resistance(kohms)Temperature(°C/°F)Resistance(kohms)
20/-4284.550/12210.8
0/3297.570/1585.2
25/7730

Scheme 88

Scheme 88: Diagnostic Circuit Diagram

Scheme 89

Scheme 89: Monitor GDS data
  1. Connect GDS 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 abnormal? YES Go to " «Inspection/Repair»(ref-536160-S08731132352013031400000) " 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-536160-S41782365302013031400000) " procedure.

Resistance value of incar temp sensor as a function of temperature.±3%

Temperature(°C/°F)Resistance(kohms)Temperature(°C/°F)Resistance(kohms)
20/-4284.550/12210.8
0/3297.570/1585.2
25/7730

Scheme 90

Scheme 90: Diagnostic Circuit Diagram

Scheme 91

Scheme 91: Monitor GDS data
  1. Connect GDS 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 abnormal? YES Go to " «Inspection/Repair»(ref-536160-S25597849622013031400000) " 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-536160-S41631139092013031400000) " procedure.

Voltage value of Air Mix potentiometer as a function of temp door position.

Door positionVoltage
Max. cool0.4 V±0.3V
Max. warm4.6 V±0.3V

Scheme 92

Scheme 92: Diagnostic Circuit Diagram

Scheme 93

Scheme 93: Monitor GDS data
  1. Actuation Test Connect GDS with diagnostic connector. Warm up the engine to normal engine temperature after engine starts. Select and monitor "Air Mix Door Potentioner-Driver" parameter on GDS. Select and perform Actuation test Air Mix Door Potentioner-Driver - 0%/50%/100% in order. With performing Actuation test, check that the value of Air Mix Door Potentiometer follows and close to the value of Actuation Test. Specification : Check that the value of Air Mix Door Potentiometer at current data should be close to the value of the acuration test. Does the value of current data follow in accordance with the each actuation test? 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-536160-S31405890922013031400000) " procedure. NO Go to " «Inspection/Repair»(ref-536160-S33536196202013031400000) " procedure.

Voltage value of potentiometer as a function of mode door position.

Mode Door PositionVoltage
VENT0.9±0.3V
BI-LEVEL0.9±0.3V
FLOOR4.1±0.3V
MIX4.1±0.3V
DEF4.1±0.3V

Scheme 94

Scheme 94: Diagnostic Circuit Diagram

Scheme 95

Scheme 95: Monitor GDS data
  1. Actuation Test Connect GDS with diagnostic connector. Warm up the engine to normal engine temperature after engine starts. Select and monitor "Direction Potention" parameter on GDS. Select and perform Actuation test Driver Mode Door - Face/Foot/Defrost in order. Check that the value of all the parameters are changed when performing the actuation test. Specification : Face - About below 10%, Foot: About 50%, Defrost: About 90%. Does the position sensor data change when performing the actuation test? 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-536160-S31498862322013031400000) " procedure. NO Go to " «Inspection/Repair»(ref-536160-S16721235552013031400000) " procedure.

Resistance value of evaporator sensor as a function of temperature.±1%

Temperature(°C/°F)Resistance(kohms)Temperature(°C/°F)Resistance(kohms)
10/-141820/684.8
0/321130/863.3
10/507.340/1042.3

Scheme 96

Scheme 96: Diagnostic Circuit Diagram

Scheme 97

Scheme 97: Monitor GDS data
  1. Connect GDS with diagnostic connector.
  2. Warm up the engine to normal engine temperature after engine starts.
  3. Select and monitor "Evaporator sensor" parameter on GDS.
  4. Is the Evaporator Sensor abnormal? YES Go to " «Inspection/Repair»(ref-536160-S12731341202013031400000) " 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-536160-S09773968272013031400000) " procedure.

Resistance value of evaporator sensor as a function of temperature.±1%

Temperature(°C/°F)Resistance(kohms)Temperature(°C/°F)Resistance(kohms)
10/-141820/684.8
0/321130/863.3
10/507.340/1042.3

Scheme 98

Scheme 98: Diagnostic Circuit Diagram

Scheme 99

Scheme 99: Monitor GDS data
  1. Connect GDS with diagnostic connector.
  2. Warm up the engine to normal engine temperature after engine starts.
  3. Select and monitor "Evaporator sensor" parameter on GDS.
  4. Is the Evaporator Sensor normal? YES Go to " «Inspection/Repair»(ref-536160-S38954987372013031400000) " 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-536160-S14458580922013031400000) " procedure.

Voltage value of Air Mix potentiometer as a function of temp door position.

Door positionVoltage
Max. cool0.4 V±0.3V
Max. warm4.6 V±0.3V

Scheme 100

Scheme 100: Diagnostic Circuit Diagram

Scheme 101

Scheme 101: Monitor GDS data
  1. Actuation Test Connect GDS with diagnostic connector. Warm up the engine to normal engine temperature after engine starts. Select and monitor "Air Mix Door Potentioner-Driver" parameter on GDS. Select and perform Actuation test Air Mix Door Potentioner-Driver - 0%/50%/100% in order. With performing Actuation test, check that the value of Air Mix Door Potentiometer follows is changed and close to the value of Actuation Test. Specification : Check that the value of Air Mix Door Potentiometer at current data should be close to the value of the actuation test. Does the value of current data follow in accordance with the each actuation test? 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-536160-S09065016542013031400000) " procedure. NO Go to " «Inspection/Repair»(ref-536160-S22415601162013031400000) " procedure.

Voltage value of potentiometer as a function of mode door position.

Mode Door PositionVoltage
VENT0.9±0.3V
BI-LEVEL0.9±0.3V
FLOOR4.1±0.3V
MIX4.1±0.3V
DEF4.1±0.3V

Scheme 102

Scheme 102: Diagnostic Circuit Diagram

Scheme 103

Scheme 103: Monitor GDS data
  1. Actuation Test Connect GDS with diagnostic connector. Warm up the engine to normal engine temperature after engine starts. Select and monitor "Direction Potention" parameter on GDS. Select and perform Actuation test Driver Mode Door - Face/Foot/Defrost in order. Check that the value of all the parameters are changed when performing the actuation test. Specification : Face - About below 10%, Foot: About 50%, Defrost: About 90%. Does the position sensor data change when performing the actuation test? 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-536160-S21280037422013031400000) " procedure. NO Go to " «Inspection/Repair»(ref-536160-S20436704132013031400000) " procedure.

Defogger sensor according to Class Temp

Temp(°C)Resistance(kohms)Temp(°C)Resistance(kohms)
40188.50±4%2012.09±1.2%
2067.8±3%405.83±1.6%
027.28±2%801.67±2.5%

Scheme 104

Scheme 104: Diagnostic Circuit Diagram

Scheme 105

Scheme 105: Monitor GDS data
  1. Connect GDS with diagnostic connector.
  2. Warm up the engine to normal temperature after engine starts.
  3. Select and monitor "Auto defogger humidity sensor" parameter on GDS.
  4. Is the defogger sensor abnormal? YES Go to " «Inspection/Repair»(ref-536160-S12341247132013031400000) " 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-536160-S24777057772013031400000) " procedure.

Voltage output according to Actuator position

Mode Door PositionVoltage
VENT0.9±0.3V
BI-LEVEL0.9±0.3V
FLOOR4.1±0.3V
MIX4.1±0.3V
DEF4.1±0.3V

Scheme 106

Scheme 106: Diagnostic Circuit Diagram

Scheme 107

Scheme 107: Monitor GDS data
  1. Actuation Test Connect GDS with diagnostic connector. Warm up the engine to normal temperature after engine start. Select and monitor "Auto defoger mode direction potentioner" parameter on current data. Perform Actuation Test for "Auto Defoger Mode Door -0%(close)/50%/100%(open)" in order. Check that the value of auto defoger mode actuator is changed with performing actuation test. Specification : 0%(close): About 90%, 50%: About 55%, 100%(open): About 20%. Does the value of auto defoger mode actuator follow the specification? 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-536160-S32899484252013031400000) " procedure. NO Go to " «Inspection/Repair»(ref-536160-S01154753232013031400000) " procedure.

Voltage output according to Actuator position

Mode Door PositionVoltage
VENT0.9±0.3V
BI-LEVEL0.9±0.3V
FLOOR4.1±0.3V
MIX4.1±0.3V
DEF4.1±0.3V

Scheme 108

Scheme 108: Diagnostic Circuit Diagram

Scheme 109

Scheme 109: Monitor GDS data
  1. Actuation Test Connect GDS with diagnostic connector. Warm up the engine to normal temperature after engine start. Select and monitor "Auto defoger mode direction potentioner" parameter on current data. Perform Actuation Test for "Auto Defoger Mode Door -0%(close)/50%/100%(open)" in order. Check that the value of auto defoger mode actuator is changed with performing actuation test. Specification : 0%(close): About 90%, 50%: About 55%, 100%(open): About 20%. Does the value of auto defoger mode actuator follow the specification? 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-536160-S21111280102013031400000) " procedure. NO Go to " «Inspection/Repair»(ref-536160-S35298235732013031400000) " procedure.

* The voltage of auto defoger mode actuator in accordance with position

Mode Door PositionVoltage
VENT0.9±0.3V
BI-LEVEL0.9±0.3V
FLOOR4.1±0.3V
MIX4.1±0.3V
DEF4.1±0.3V

Scheme 110

Scheme 110: Diagnostic Circuit Diagram

Scheme 111

Scheme 111: Monitor GDS data
  1. Actuation Test Connect GDS with diagnostic connector. Warm up the engine to normal temperature after engine start. Select and monitor Auto defoger mode actuator" parameter on current data. Perform Actuation Test for "auto defoger actuator -0%(close)/50%/100%(open)" in order. Check that the value of auto defoger mode actuator is changed with performing actuation test. Specification : 0%(close): About 90%, 50%: About 55%, 100%(open): About 20%. Does the value of auto defoger mode actuator follow the specification? 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-536160-S22201530382013031400000) " procedure. NO Go to " «Inspection/Repair»(ref-536160-S31138416142013031400000) " procedure.

Voltage value of Air Mix potentiometer as a function of temp door position.

Door positionVoltage
Max. cool0.4 V±0.3V
Max. warm4.6 V±0.3V

Scheme 112

Scheme 112: Diagnostic Circuit Diagram

Scheme 113

Scheme 113: Monitor GDS data
  1. Actuation Test Connect GDS with diagnostic connector. Warm up the engine to normal engine temperature after engine starts. Select and monitor "Air Mix Door Potentioner-Driver" parameter on GDS. Select and perform Actuation test Air Mix Door Potentioner-Driver - 0%/50%/100% in order. Check that the value of all the parameters are changed when performing the actuation test. Specification : Check that the value of Air Mix Door Potentiometer at current data should be close to the value of the occultation test. Does the value of current data follow in accordance with the each actuation test? 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-536160-S00335348682013031400000) " procedure. NO Go to " «Inspection/Repair»(ref-536160-S40634034202013031400000) " procedure.

Voltage value of Intake potentiometer as a function of position of Intake door

Door positionVoltage
FRE0.4V
REC4.6V

Scheme 114

Scheme 114: Diagnostic Circuit Diagram

Scheme 115

Scheme 115: Monitor GDS data
  1. Check Actuation Test Connect GDS with diagnostic connector. Warm up the engine to normal temperature after engine start Select "Intake Potentiometer" parameter on the current data with GDS. Perform Actuation Test for Air Inlet Mode Selection - Recirculation/Fresh in order. With performing Actuation test, check that the value of each position sensors are changing. Specification : Recirculation: About 90%, Fresh: About 10%. Does the position sensor data change when performing the actuation test? 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-536160-S25337339292013031400000) " procedure. NO Go to " «Inspection/Repair»(ref-536160-S30351556182013031400000) " procedure.

Voltage value of potentiometer as a function of mode door position.

Mode Door PositionVoltage
VENT0.9±0.3V
BI-LEVEL0.9±0.3V
FLOOR4.1±0.3V
MIX4.1±0.3V
DEF4.1±0.3V

Scheme 116

Scheme 116: Diagnostic Circuit Diagram

Scheme 117

Scheme 117: Monitor GDS data
  1. Actuation Test Connect GDS with diagnostic connector. Warm up the engine to normal engine temperature after engine starts. Select and monitor "Direction Potention" parameter on GDS. Select and perform Actuation test Driver Mode Door - Face/Foot/Defrost in order. Check that the value of all the parameters are changed when performing the actuation test. Specification : Face - About below 10%, Foot: About 50%, Defrost: About 90%. Does the position sensor data change when performing the actuation test? 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-536160-S28895708272013031400000) " procedure. NO Go to " «Inspection/Repair»(ref-536160-S38123337822013031400000) " procedure.