{"id":9177,"date":"2022-03-10T20:30:45","date_gmt":"2022-03-10T20:30:45","guid":{"rendered":"https:\/\/www.hexorcism.com\/19BP\/sm2335678\/"},"modified":"2022-03-10T20:30:45","modified_gmt":"2022-03-10T20:30:45","slug":"sm2335678","status":"publish","type":"page","link":"https:\/\/www.hexorcism.com\/19BP\/sm2335678\/","title":{"rendered":"AIR FROM VENTS NOT COLD ENOUGH [FULL-AUTO AIR CONDITIONER]"},"content":{"rendered":"
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AIR FROM VENTS NOT COLD ENOUGH [FULL-AUTO AIR CONDITIONER]<\/h3>\n<\/div>\n

SM2335678<\/p>\n

<\/p>\n
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\n
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id0703c1700800<\/p>\n

\n\n\n\n\n\n\n
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Troubleshooting item<\/p>\n<\/th>\n

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Air from vents not cold enough<\/p>\n<\/th>\n<\/tr>\n<\/thead>\n

\n
Description<\/span><\/div>\n<\/td>\n
\n
\u2022 Insufficient cooled-airflow even if airflow temperature setting is MAX COLD<\/div>\n
\u2022 Excessive time required to cool to set temperature<\/div>\n<\/td>\n<\/tr>\n
\n
Possible cause<\/span><\/div>\n<\/td>\n
\n
\n
\n
Note<\/div>\n<\/dd>\n
\n
\u2022 If the engine coolant temperature increases due to a cooling system malfunction, the fail-safe function disables the A\/C operation.<\/div>\n<\/dd>\n<\/dl>\n
\u2022 Blower unit or air filter blockage<\/div>\n
\u2022 Drive belt malfunction<\/div>\n
\u2022 Refrigerant pressure sensor malfunction<\/div>\n
\u2022 Cooling fan operation malfunction<\/div>\n
\u2022 Condenser fin blockage<\/div>\n
\u2022 Expansion valve malfunction<\/div>\n
\u2022 Insufficient compressor oil<\/div>\n
\u2022 Poor installation of air mix link and air mix door for A\/C unit<\/div>\n
\u2022 Air mix actuator malfunction<\/div>\n
\u2022 System piping malfunction<\/div>\n
\n
\n
\u2015 Crushed piping<\/div>\n
\u2015 Gas leakage from connecting area (improper installation, O-ring malfunction)<\/div>\n<\/dd>\n<\/dl>\n
\u2022 Condenser malfunction<\/div>\n
\u2022 Poor A\/C compressor compression<\/div>\n
\u2022 Evaporative temperature sensor malfunction<\/div>\n
\u2022 Poor evaporator temperature sensor installation<\/div>\n
\u2022 Receiver\/drier malfunction<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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Diagnostic Procedure<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
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Step<\/p>\n<\/th>\n

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Inspection<\/p>\n<\/th>\n

\n

Action<\/p>\n<\/th>\n<\/tr>\n<\/thead>\n

\n
1<\/div>\n<\/td>\n
\n
INSPECT BLOWER UNIT AND AIR FILTER<\/div>\n
\u2022 Are the blower unit intake or air filter clogged? (See AIR FILTER INSPECTION<\/a>.)<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
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Remove the cause of the blockage.<\/div>\n
Replace the air filter if it is clogged.<\/div>\n
(See AIR FILTER REMOVAL\/INSTALLATION [(US)]<\/a>.)<\/div>\n
After performing the repair, perform the repair completion verification.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
\n
2<\/div>\n<\/td>\n
\n
INSPECT REFRIGERANT PRESSURE<\/div>\n
\u2022 Inspect the refrigerant pressure. (See REFRIGERANT PRESSURE CHECK [(US)]<\/a>.)<\/div>\n
\u2022 Is the refrigerant pressure normal?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Record the inspection results.<\/div>\n
\u2022 If the refrigerant pressures on the high pressure and low pressure side are both high, go to Step 6.<\/div>\n
\u2022 If the refrigerant pressures on the high pressure and low pressure sides are almost same, go to Step 9.<\/div>\n
\u2022 If the refrigerant pressures on the high pressure and low pressure sides are both low, go to Step 11.<\/div>\n
\u2022 If vacuum on the low pressure side and the refrigerant pressure on the high pressure side is extremely low, go to Step 12.<\/div>\n
\u2022 If the refrigerant pressure on the high pressure side is low and the refrigerant pressure on the low pressure side is high, replace the A\/C compressor, then perform the repair completion verification. (See A\/C COMPRESSOR REMOVAL\/INSTALLATION [SKYACTIV-G 2.0, SKYACTIV-G 2.5]<\/a>.)<\/div>\n
\u2022 If the refrigerant pressure condition is under any condition other than the above, go to Step 14.<\/div>\n<\/td>\n<\/tr>\n
\n
3<\/div>\n<\/td>\n
\n
PERFORM AIR-CONDITIONING SYSTEM PERFORMANCE TEST<\/div>\n
\u2022 Perform the air-conditioning system performance test. (See REFRIGERANT SYSTEM PERFORMANCE TEST [(US)]<\/a>.)<\/div>\n
\u2022 Is the airflow temperature within the specified range?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Perform the repair completion verification.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
\n
4<\/div>\n<\/td>\n
\n
INSPECT DRIVE BELT<\/div>\n
\u2022 Inspect the drive belt. (See DRIVE BELT INSPECTION [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (US))]<\/a>.) (See DRIVE BELT INSPECTION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))]<\/a>.)<\/div>\n
\u2022 Is the drive belt condition normal?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
After adjusting the drive belt tension, go to the next step.<\/div>\n
(See DRIVE BELT REMOVAL\/INSTALLATION [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (US))]<\/a>.)<\/div>\n
(See DRIVE BELT REMOVAL\/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))]<\/a>.)<\/div>\n<\/td>\n<\/tr>\n
\n
5<\/div>\n<\/td>\n
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INSPECT A\/C PRESSURE SENSOR<\/div>\n
\u2022 Inspect the A\/C pressure sensor. (See REFRIGERANT PRESSURE SENSOR INSPECTION [FULL-AUTO AIR CONDITIONER (US)]<\/a>.)<\/div>\n
\u2022 Is the A\/C pressure sensor normal?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Replace the refrigerant pressure sensor.<\/div>\n
(See CLIMATE CONTROL UNIT REMOVAL\/INSTALLATION [MANUAL AIR CONDITIONER (US)]<\/a>.)<\/div>\n
After performing the repair, perform the repair completion verification.<\/div>\n<\/td>\n<\/tr>\n
\n
6<\/div>\n<\/td>\n
\n
INSPECT COOLING FAN<\/div>\n
\u2022 Verify the cooling fan operation. (See COOLING FAN MOTOR INSPECTION [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (US))]<\/a>.) (See COOLING FAN MOTOR INSPECTION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))]<\/a>.)<\/div>\n
\u2022 Is the cooling fan operation normal?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Repair or replace the malfunctioning location according to the inspection results.<\/div>\n
After performing the repair, perform the repair completion verification.<\/div>\n<\/td>\n<\/tr>\n
\n
7<\/div>\n<\/td>\n
\n
INSPECT CONDENSER<\/div>\n
\u2022 Inspect the condenser. (See CONDENSER INSPECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5]<\/a>.)<\/div>\n
\u2022 Is it normal?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Repair or replace the malfunctioning location according to the inspection results.<\/div>\n
(See CONDENSER REMOVAL\/INSTALLATION [SKYACTIV-G 2.0, SKYACTIV-G 2.5]<\/a>.)<\/div>\n
After performing the repair, perform the repair completion verification.<\/div>\n<\/td>\n<\/tr>\n
\n
8<\/div>\n<\/td>\n
\n
INSPECT SYSTEM PIPING<\/div>\n
\u2022 Is the hose on the low pressure side hot to the touch?<\/div>\n<\/td>\n
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Yes<\/div>\n<\/td>\n
\n
Replace the refrigerant.<\/div>\n
After vacuum discharging for 1 h and charging with refrigerant to the specified level, perform the repair completion verification.<\/div>\n
(See REFRIGERANT CHARGING [(US)]<\/a>.)<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Replace the refrigerant.<\/div>\n
After vacuum discharging for 15 min<\/span> and charging with refrigerant to the specified level, perform the repair completion verification.<\/div>\n
(See REFRIGERANT CHARGING [(US)]<\/a>.)<\/div>\n<\/td>\n<\/tr>\n
\n
9<\/div>\n<\/td>\n
\n
INSPECT EXPANSION VALVE<\/div>\n
\u2022 Remove the expansion valve and verify its condition. (See EXPANSION VALVE REMOVAL\/INSTALLATION [(US)]<\/a>.)<\/div>\n
\u2022 Is there refrigerant leakage or valve blockage?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
If there is foreign matter blockage the valve, remove the foreign matter.<\/div>\n
If there is refrigerant leakage or blockage, replace the expansion valve.<\/div>\n
(See EXPANSION VALVE REMOVAL\/INSTALLATION [(US)]<\/a>.)<\/div>\n
Perform the repair completion verification.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
\n
10<\/div>\n<\/td>\n
\n
DETERMINE IF MALFUNCTION CAUSE IS A\/C COMPRESSOR OR AIR MIX ACTUATOR<\/div>\n
\u2022 Start the engine and idle it.<\/div>\n
\u2022 Access the following dash-electrical supply unit PIDs using the M-MDS: (See PID\/DATA MONITOR INSPECTION<\/a>.)<\/div>\n
\n
\n
\u2015 AIR MIX_R<\/div>\n
\u2015 AIR MIX_L<\/div>\n<\/dd>\n<\/dl>\n
\u2022 Are PID values normal?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
After adjusting the compressor oil to the specified level, perform the repair completion verification.<\/div>\n
(See A\/C COMPRESSOR REMOVAL\/INSTALLATION [SKYACTIV-G 2.0, SKYACTIV-G 2.5]<\/a>.)<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Verify the air mix link and air mix door installation conditions on the side where the PID is not normal.<\/div>\n
(See A\/C UNIT REMOVAL\/INSTALLATION [(US)]<\/a>.)<\/div>\n
Securely and correctly installed to positions<\/span><\/div>\n
Replace the air mix actuator.<\/div>\n
(See AIR MIX ACTUATOR REMOVAL [FULL-AUTO AIR CONDITIONER (US)]<\/a>.)<\/div>\n
(See AIR MIX ACTUATOR INSTALLATION [FULL-AUTO AIR CONDITIONER (US)]<\/a>.)<\/div>\n
Not securely and correctly installed to positions<\/span><\/div>\n
Repair the air mix link and air mix door installation conditions.<\/div>\n
(See A\/C UNIT DISASSEMBLY\/ASSEMBLY [(US)]<\/a>.)<\/div>\n
Perform the repair completion verification.<\/div>\n<\/td>\n<\/tr>\n
\n
11<\/div>\n<\/td>\n
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INSPECT SYSTEM PIPING<\/div>\n
\u2022 Verify if there is gas leakage from the system piping using the gas leak tester.<\/div>\n
\u2022 Is the system piping normal?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Replace the crushed system piping or the malfunctioning location.<\/div>\n
(See REFRIGERANT LINE REMOVAL\/INSTALLATION [SKYACTIV-G 2.0, SKYACTIV-G 2.5]<\/a>.)<\/div>\n
Perform the repair completion verification.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Replace the O-ring of the malfunctioning location (system piping connecting area). Or replace the malfunctioning location of the system piping.<\/div>\n
(See REFRIGERANT LINE REMOVAL\/INSTALLATION [SKYACTIV-G 2.0, SKYACTIV-G 2.5]<\/a>.)<\/div>\n
Perform the repair completion verification.<\/div>\n<\/td>\n<\/tr>\n
\n
12<\/div>\n<\/td>\n
\n
INSPECT REFRIGERANT PRESSURE<\/div>\n
\u2022 Does the refrigerant pressure on the low pressure side vary between the vacuum and normal range?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Replace the condenser (moisture has penetrated engine coolant).<\/div>\n
(See CONDENSER REMOVAL\/INSTALLATION [SKYACTIV-G 2.0, SKYACTIV-G 2.5]<\/a>.)<\/div>\n
Perform the repair completion verification.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
\n
13<\/div>\n<\/td>\n
\n
INSPECT EXPANSION VALVE<\/div>\n
\u2022 Remove the expansion valve and verify its condition. (See EXPANSION VALVE REMOVAL\/INSTALLATION [(US)]<\/a>.)<\/div>\n
\u2022 Is there refrigerant leakage or valve blockage?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
If there is foreign matter blockage the valve, remove the foreign matter.<\/div>\n
If there is refrigerant leakage or blockage, replace the expansion valve.<\/div>\n
(See EXPANSION VALVE REMOVAL\/INSTALLATION [(US)]<\/a>.)<\/div>\n
Perform the repair completion verification.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Install the expansion valve, then perform the repair completion verification.<\/div>\n<\/td>\n<\/tr>\n
\n
14<\/div>\n<\/td>\n
\n
INSPECT EVAPORATOR TEMPERATURE SENSOR<\/div>\n
\u2022 Inspect the evaporator temperature sensor. (See EVAPORATOR TEMPERATURE SENSOR INSPECTION [FULL-AUTO AIR CONDITIONER]<\/a>.)<\/div>\n
\u2022 Is the evaporative temperature sensor normal?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Verify the evaporator temperature installation condition and repair the installation position.<\/div>\n
(See EVAPORATOR TEMPERATURE SENSOR REMOVAL\/INSTALLATION [FULL-AUTO AIR CONDITIONER (US)]<\/a>.)<\/div>\n
Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Replace the evaporative temperature sensor.<\/div>\n
(See EVAPORATOR TEMPERATURE SENSOR REMOVAL\/INSTALLATION [FULL-AUTO AIR CONDITIONER (US)]<\/a>.)<\/div>\n
After replacement, perform the repair completion verification.<\/div>\n<\/td>\n<\/tr>\n
\n
15<\/div>\n<\/td>\n
\n
DETERMINE IF MALFUNCTION CAUSE IS A\/C COMPRESSOR OR AIR MIX ACTUATOR<\/div>\n
\u2022 Start the engine and idle it.<\/div>\n
\u2022 Access the following dash-electrical supply unit PIDs using the M-MDS: (See PID\/DATA MONITOR INSPECTION<\/a>).<\/div>\n
\n
\n
\u2015 AIR MIX_R<\/div>\n
\u2015 AIR MIX_L<\/div>\n<\/dd>\n<\/dl>\n
\u2022 Are PID values normal?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Perform the repair completion verification.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Verify the air mix link and air mix door installation conditions on the side where the PID is not normal.<\/div>\n
(See A\/C UNIT REMOVAL\/INSTALLATION [(US)]<\/a>.)<\/div>\n
Securely and correctly installed to positions<\/span><\/div>\n
Replace the air mix actuator.<\/div>\n
(See AIR MIX ACTUATOR REMOVAL [FULL-AUTO AIR CONDITIONER (US)]<\/a>.)<\/div>\n
(See AIR MIX ACTUATOR INSTALLATION [FULL-AUTO AIR CONDITIONER (US)]<\/a>.)<\/div>\n
Not securely and correctly installed to positions<\/span><\/div>\n
Repair the air mix link and air mix door installation conditions.<\/div>\n
(See A\/C UNIT DISASSEMBLY\/ASSEMBLY [(US)]<\/a>.)<\/div>\n
Perform the repair completion verification.<\/div>\n<\/td>\n<\/tr>\n
\n
Repair completion verification<\/div>\n<\/td>\n
\n
VERIFY THAT MALFUNCTION SYMPTOM DOES NOT RECUR AFTER REPAIR<\/div>\n
\u2022 If refrigerant was discharged during inspection and not recharged, perform vacuum discharging and charge with new refrigerant to the specified level. (See REFRIGERANT CHARGING [(US)]<\/a>.)<\/div>\n
\u2022 Is there cool airflow (is the result of refrigerant system performance test normal?) ? (See REFRIGERANT SYSTEM PERFORMANCE TEST [(US)]<\/a>.)<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Troubleshooting completed.<\/div>\n
Explain repairs to customer.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.<\/div>\n
(See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [(US)]<\/a>.)<\/div>\n
If the CAN communication is normal, perform the diagnosis from Step 1.<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
<\/div>\n
<\/div>\n
<\/div>\n

<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

AIR FROM VENTS NOT COLD ENOUGH [FULL-AUTO AIR CONDITIONER] SM2335678 id0703c1700800 Troubleshooting item Air from vents not cold enough Description \u2022 Insufficient cooled-airflow even if airflow temperature setting is MAX COLD \u2022 Excessive time required to cool to set temperature Possible cause Note \u2022 If the engine coolant temperature increases due to a cooling system malfunction, the fail-safe function disables the A\/C operation. \u2022 Blower unit or air filter blockage \u2022 Drive belt malfunction \u2022 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-9177","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.hexorcism.com\/19BP\/wp-json\/wp\/v2\/pages\/9177","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hexorcism.com\/19BP\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.hexorcism.com\/19BP\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.hexorcism.com\/19BP\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hexorcism.com\/19BP\/wp-json\/wp\/v2\/comments?post=9177"}],"version-history":[{"count":0,"href":"https:\/\/www.hexorcism.com\/19BP\/wp-json\/wp\/v2\/pages\/9177\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.hexorcism.com\/19BP\/wp-json\/wp\/v2\/media?parent=9177"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}