{"id":10346,"date":"2022-03-10T20:30:55","date_gmt":"2022-03-10T20:30:55","guid":{"rendered":"https:\/\/www.hexorcism.com\/19BP\/sm2566243\/"},"modified":"2022-03-10T20:30:55","modified_gmt":"2022-03-10T20:30:55","slug":"sm2566243","status":"publish","type":"page","link":"https:\/\/www.hexorcism.com\/19BP\/sm2566243\/","title":{"rendered":"NO COOL AIR [MANUAL AIR CONDITIONER (US)]"},"content":{"rendered":"
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NO COOL AIR [MANUAL AIR CONDITIONER (US)]<\/h3>\n<\/div>\n

SM2566243<\/p>\n

<\/p>\n
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id0703c27009c5<\/p>\n

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

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No cool air<\/p>\n<\/th>\n<\/tr>\n<\/thead>\n

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Description<\/span><\/div>\n<\/td>\n
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\u2022 Magnetic clutch does not operate<\/div>\n
\u2022 No cool airflow even if airflow temperature setting is MAX COLD<\/div>\n<\/td>\n<\/tr>\n
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Possible cause<\/span><\/div>\n<\/td>\n
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Note<\/div>\n<\/dd>\n
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\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 A\/C request signal is not input to PCM<\/div>\n
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\u2015 Communication error between dash electrical supply unit and body control module (BCM)<\/div>\n
\u2015 Communication error between body control module (BCM) and PCM<\/div>\n<\/dd>\n<\/dl>\n
\u2022 Magnetic clutch malfunction<\/div>\n
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\u2015 Operation malfunction<\/div>\n
\u2015 Clearance adjustment malfunction<\/div>\n<\/dd>\n<\/dl>\n
\u2022 Refrigerant pressure sensor malfunction<\/div>\n
\u2022 A\/C compressor malfunction<\/div>\n
\u2022 Improper refrigerant charging amount<\/div>\n
\u2022 Evaporator temperature sensor malfunction<\/div>\n
\u2022 Open circuit or short to ground in wiring harness between evaporative temperature sensor and dash-electrical supply unit<\/div>\n
\u2022 Open circuit in A\/C relay signal circuit<\/div>\n
\u2022 Short to power supply in A\/C relay signal circuit<\/div>\n
\u2022 Open circuit in magnetic clutch power supply circuit<\/div>\n
\u2022 Short to ground in magnetic clutch power supply circuit<\/div>\n
\u2022 Open circuit in A\/C relay power supply circuit<\/div>\n
\u2022 Short to ground in A\/C relay power supply circuit<\/div>\n
\u2022 Open circuit in magnetic clutch signal circuit<\/div>\n
\u2022 Short to ground in magnetic clutch signal circuit<\/div>\n
\u2022 A\/C relay malfunction<\/div>\n<\/td>\n<\/tr>\n
<\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\u2022 When performing an asterisked (*) troubleshooting inspection, shake the wiring harness and connectors while performing the inspection to discover whether poor contact points are the cause of any intermittent malfunctions. If there is a problem, check to make sure connectors, terminals and wiring harnesses are connected correctly and undamaged.<\/div>\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\n\n\n\n
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Step<\/p>\n<\/th>\n

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

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

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1<\/div>\n<\/td>\n
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VERIFY AIRFLOW CONDITION<\/div>\n
\u2022 Switch the ignition ON (engine off or on).<\/div>\n
\u2022 Set the airflow volume control dial to 1 or more<\/span>.<\/div>\n
\u2022 Does air flow from the vent after operating the blower motor?<\/div>\n<\/td>\n
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Yes<\/div>\n<\/td>\n
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Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
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No<\/div>\n<\/td>\n
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Go to Step 1 of the following troubleshooting.<\/div>\n
\u2022 INSUFFICIENT AIR (OR NO AIR) BLOWN FROM VENTS [MANUAL AIR CONDITIONER]<\/a><\/div>\n
\u2022 AMOUNT OF AIR BLOWN FROM VENTS DOES NOT CHANGE [MANUAL AIR CONDITIONER]<\/a><\/div>\n<\/td>\n<\/tr>\n
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2<\/div>\n<\/td>\n
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INSPECT A\/C COMPRESSOR OPERATION<\/div>\n
\u2022 Start engine.<\/div>\n
\u2022 Turn A\/C switch on.<\/div>\n
\u2022 Does A\/C compressor operate?<\/div>\n<\/td>\n
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Yes<\/div>\n<\/td>\n
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Go to Step 1 of the following troubleshooting.<\/div>\n
(See AIR FROM VENTS NOT COLD ENOUGH [MANUAL AIR CONDITIONER]<\/a>.)<\/div>\n<\/td>\n<\/tr>\n
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No<\/div>\n<\/td>\n
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Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
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3<\/div>\n<\/td>\n
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VERIFY DTCs FOR RELATED MODULES<\/div>\n
\u2022 Verify DTCs using the M-MDS.<\/div>\n
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\u2015 PCM (See DTC INSPECTION<\/a>.)<\/div>\n
\u2015 Dash-electrical supply unit (See DTC INSPECTION<\/a>.)<\/div>\n
\u2015 Body control module (BCM) (See DTC INSPECTION<\/a>.)<\/div>\n<\/dd>\n<\/dl>\n
\u2022 Are any DTCs displayed?<\/div>\n<\/td>\n
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Yes<\/div>\n<\/td>\n
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Go to the applicable DTC inspection.<\/div>\n
\u2015 PCM (See DTC TABLE [PCM (SKYACTIV-G (US))]<\/a>.)<\/div>\n
\u2015 Dash-electrical supply unit (See DTC TABLE [DASH-ELECTRICAL SUPPLY UNIT (US)]<\/a>.)<\/div>\n
\u2015 Body control module (BCM) (See DTC TABLE [BODY CONTROL MODULE (BCM) (US)]<\/a>.)<\/div>\n<\/td>\n<\/tr>\n
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No<\/div>\n<\/td>\n
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Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
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4<\/div>\n<\/td>\n
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VERIFY MAGNETIC CLUTCH OPERATION<\/div>\n
\u2022 Access PCM PID A\/C_SW using the M-MDS. (See PID\/DATA MONITOR INSPECTION<\/a>.)<\/div>\n
\u2022 Start engine.<\/div>\n
\u2022 Turn the PID A\/C_SW to ON from OFF using the M-MDS simulation function. (See SIMULATION INSPECTION<\/a>.)<\/div>\n
\u2022 Is the magnetic clutch engaged\/disengaged according to the simulation function operation?<\/div>\n<\/td>\n
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Yes<\/div>\n<\/td>\n
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Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
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No<\/div>\n<\/td>\n
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Go to Step 9.<\/div>\n<\/td>\n<\/tr>\n
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5<\/div>\n<\/td>\n
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VERIFY MEASURED VALUE OF A\/C PRESSURE SENSOR<\/div>\n
\u2022 Access PCM PIDs AC_PRES_AFT_COMP and AC_PRES_BEF_EXP_VLV using the M-MDS. (See PID\/DATA MONITOR INSPECTION<\/a>.)<\/div>\n
\u2022 Monitor the AC_PRES_AFT_COMP and AC_PRES_BEF_EXP_VLV PIDs while turning on and off the air conditioner by switching the control panel.<\/div>\n
\u2022 Are PIDs normal?<\/div>\n<\/td>\n
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Yes<\/div>\n<\/td>\n
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Go to Step 7.<\/div>\n<\/td>\n<\/tr>\n
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No<\/div>\n<\/td>\n
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Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
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6<\/div>\n<\/td>\n
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INSPECT REFRIGERANT PRESSURE SENSOR<\/div>\n
\u2022 Inspect the refrigerant pressure sensor. (See REFRIGERANT PRESSURE SENSOR INSPECTION [MANUAL AIR CONDITIONER (US)]<\/a>.)<\/div>\n
\u2022 Is the refrigerant pressure sensor normal?<\/div>\n<\/td>\n
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Yes<\/div>\n<\/td>\n
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Inspect the following and repair or replace if necessary.<\/div>\n
\u2022 Refrigerant charge amount (if refrigerant has discharged completely, replace receiver\/drier( *1<\/sup>)) (See RECEIVER\/DRIER REMOVAL\/INSTALLATION [SKYACTIV-G 2.0, SKYACTIV-G 2.5]<\/a>.)<\/div>\n
\u2022 A\/C compressor (See A\/C COMPRESSOR REMOVAL\/INSTALLATION [SKYACTIV-G 2.0, SKYACTIV-G 2.5]<\/a>.)<\/div>\n
Perform the repair completion verification.<\/div>\n<\/td>\n<\/tr>\n
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No<\/div>\n<\/td>\n
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Replace refrigerant pressure sensor, then perform the repair completion verification.<\/div>\n
(See REFRIGERANT PRESSURE SENSOR REMOVAL\/INSTALLATION [MANUAL AIR CONDITIONER (US)]<\/a>.)<\/div>\n<\/td>\n<\/tr>\n
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7<\/div>\n<\/td>\n
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VERIFY MEASURED VALUE OF EVAPORATOR TEMPERATURE SENSOR<\/div>\n
\u2022 Access dash-electrical supply unit PID EVA_TMP using the M-MDS. (See PID\/DATA MONITOR INSPECTION<\/a>.)<\/div>\n
\u2022 Turn the climate control unit A\/C switch on and off while the PID EVA_TMP is displayed.<\/div>\n
\u2022 Is the PID normal?<\/div>\n<\/td>\n
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Yes<\/div>\n<\/td>\n
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Perform the repair completion verification.<\/div>\n<\/td>\n<\/tr>\n
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No<\/div>\n<\/td>\n
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Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
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8<\/div>\n<\/td>\n
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INSPECT EVAPORATOR TEMPERATURE SENSOR<\/div>\n
\u2022 Inspect the evaporator temperature sensor. (See EVAPORATOR TEMPERATURE SENSOR INSPECTION [MANUAL AIR CONDITIONER]<\/a>.)<\/div>\n
\u2022 Is the evaporator temperature sensor normal?<\/div>\n<\/td>\n
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Yes<\/div>\n<\/td>\n
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Refer to the wiring diagram and verify whether or not there is a common connector between evaporator temperature sensor terminal and climate control unit terminal.<\/div>\n
If there is a common connector:<\/div>\n
\u2022 Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection.<\/div>\n
\u2022 Repair or replace the malfunctioning part.<\/div>\n
If there is no common connector:<\/div>\n
\u2022 Repair or replace the wiring harness.<\/div>\n
Perform the repair completion verification.<\/div>\n<\/td>\n<\/tr>\n
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No<\/div>\n<\/td>\n
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Replace the evaporator temperature sensor, then perform the repair completion verification.<\/div>\n
(See EVAPORATOR TEMPERATURE SENSOR REMOVAL\/INSTALLATION [MANUAL AIR CONDITIONER (US)]<\/a>.)<\/div>\n<\/td>\n<\/tr>\n
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9<\/div>\n<\/td>\n
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DETERMINE IF MALFUNCTION IS CAUSED BY A\/C RELAY CIRCUIT MALFUNCTION OR PCM MALFUNCTION<\/div>\n
\u2022 Short circuit between A\/C relay terminal E (A\/C control signal) and ground.<\/div>\n
\u2022 Is there cool airflow?<\/div>\n<\/td>\n
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Yes<\/div>\n<\/td>\n
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Repair the short circuit and go to the next step.<\/div>\n<\/td>\n<\/tr>\n
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No<\/div>\n<\/td>\n
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Go to Step 13.<\/div>\n<\/td>\n<\/tr>\n
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10<\/div>\n<\/td>\n
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INSPECT A\/C RELAY CONTROL CIRCUIT FOR OPEN CIRCUIT<\/div>\n
\u2022 Inspect the applicable circuit for open circuit. (See CIRCUIT INSPECTION<\/a>.)<\/div>\n
\u2022 Is the circuit normal?<\/div>\n<\/td>\n
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Yes<\/div>\n<\/td>\n
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Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
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No<\/div>\n<\/td>\n
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Repair or replace the malfunctioning location and perform the repair completion verification.<\/div>\n<\/td>\n<\/tr>\n
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11<\/div>\n<\/td>\n
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INSPECT A\/C RELAY CONTROL CIRCUIT FOR SHORT TO GROUND<\/div>\n
\u2022 Inspect the applicable circuit for a short to ground. (See CIRCUIT INSPECTION<\/a>.)<\/div>\n
\u2022 Is the circuit normal?<\/div>\n<\/td>\n
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Yes<\/div>\n<\/td>\n
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Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
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No<\/div>\n<\/td>\n
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Repair or replace the malfunctioning location and perform the repair completion verification.<\/div>\n<\/td>\n<\/tr>\n
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12<\/div>\n<\/td>\n
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INSPECT MAGNETIC CLUTCH<\/div>\n
\u2022 Inspect the magnetic clutch. (See MAGNETIC CLUTCH INSPECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5]<\/a>.)<\/div>\n
\u2022 Is the magnetic clutch normal?<\/div>\n<\/td>\n
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Yes<\/div>\n<\/td>\n
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Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
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No<\/div>\n<\/td>\n
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Replace the magnetic clutch, then perform the repair completion verification.<\/div>\n
(See MAGNETIC CLUTCH DISASSEMBLY\/ASSEMBLY [SKYACTIV-G 2.0, SKYACTIV-G 2.5]<\/a>.)<\/div>\n<\/td>\n<\/tr>\n
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13*<\/div>\n<\/td>\n
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INSPECT MAGNETIC CLUTCH POWER SUPPLY CIRCUIT FOR SHORT TO GROUND AND OPEN CIRCUIT<\/div>\n
\u2022 Inspect the power supply circuit for an open circuit and short to ground. (See CIRCUIT INSPECTION<\/a>.)<\/div>\n
\u2022 Is the circuit normal?<\/div>\n<\/td>\n
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Yes<\/div>\n<\/td>\n
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Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
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No<\/div>\n<\/td>\n
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Repair or replace the malfunctioning location and perform the repair completion verification.<\/div>\n<\/td>\n<\/tr>\n
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14*<\/div>\n<\/td>\n
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INSPECT A\/C RELAY POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT<\/div>\n
\u2022 Inspect the power supply circuit for an open circuit. (See CIRCUIT INSPECTION<\/a>.)<\/div>\n
\u2022 Is the circuit normal?<\/div>\n<\/td>\n
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Yes<\/div>\n<\/td>\n
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Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
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No<\/div>\n<\/td>\n
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Repair or replace the malfunctioning location and perform the repair completion verification.<\/div>\n<\/td>\n<\/tr>\n
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15*<\/div>\n<\/td>\n
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INSPECT A\/C RELAY POWER SUPPLY CIRCUIT FOR SHORT TO GROUND<\/div>\n
\u2022 Inspect the applicable circuit for a short to ground. (See CIRCUIT INSPECTION<\/a>.)<\/div>\n
\u2022 Is the circuit normal?<\/div>\n<\/td>\n
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Yes<\/div>\n<\/td>\n
\n
Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
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Repair or replace the malfunctioning location and perform the repair completion verification.<\/div>\n<\/td>\n<\/tr>\n
\n
16*<\/div>\n<\/td>\n
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INSPECT MAGNETIC CLUTCH CONTROL CIRCUIT FOR OPEN CIRCUIT<\/div>\n
\u2022 Inspect the applicable circuit for open circuit. (See CIRCUIT INSPECTION<\/a>.)<\/div>\n
\u2022 Is the circuit normal?<\/div>\n<\/td>\n
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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 and perform the repair completion verification.<\/div>\n<\/td>\n<\/tr>\n
\n
17*<\/div>\n<\/td>\n
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INSPECT MAGNETIC CLUTCH CONTROL CIRCUIT FOR SHORT TO GROUND<\/div>\n
\u2022 Inspect the applicable circuit for a short to ground. (See CIRCUIT INSPECTION<\/a>.)<\/div>\n
\u2022 Is the circuit normal?<\/div>\n<\/td>\n
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Yes<\/div>\n<\/td>\n
\n
Replace the A\/C relay and perform the repair completion verification.<\/div>\n
(See RELAY LOCATION [(US)]<\/a>.)<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
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Repair or replace the malfunctioning location and perform the repair completion verification.<\/div>\n<\/td>\n<\/tr>\n
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Repair completion verification<\/div>\n<\/td>\n
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VERIFY THAT MALFUNCTION SYMPTOM DOES NOT RECUR AFTER REPAIR<\/div>\n
\u2022 Does cool air discharge from the vents? (Are the results of refrigerant system performance test normal?) (See REFRIGERANT SYSTEM PERFORMANCE TEST [(US)]<\/a>.)<\/div>\n<\/td>\n
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Yes<\/div>\n<\/td>\n
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Troubleshooting completed. Explain repairs to customer.<\/div>\n<\/td>\n<\/tr>\n
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No<\/div>\n<\/td>\n
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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
*1:If the refrigerant has completely leaked out, ambient air may penetrate the refrigerant system and the desiccant in the receiver\/drier may absorb moisture in the ambient air resulting in saturation. If the refrigerant system is used under this condition, rust may generate in the A\/C compressor due to the moisture, causing secondary problems such as A\/C compressor lock or abnormal noise. Therefore, it will be necessary to replace the receiver\/drier. (See RECEIVER\/DRIER REMOVAL\/INSTALLATION [SKYACTIV-G 2.0, SKYACTIV-G 2.5]<\/a>.)<\/div>\n<\/div>\n
<\/div>\n
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<\/div>\n

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

NO COOL AIR [MANUAL AIR CONDITIONER (US)] SM2566243 id0703c27009c5 Troubleshooting item No cool air Description \u2022 Magnetic clutch does not operate \u2022 No cool airflow even if airflow temperature setting is MAX COLD 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 A\/C request signal is not input to PCM \u2015 Communication error between dash electrical supply unit and body […]<\/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-10346","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.hexorcism.com\/19BP\/wp-json\/wp\/v2\/pages\/10346","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=10346"}],"version-history":[{"count":0,"href":"https:\/\/www.hexorcism.com\/19BP\/wp-json\/wp\/v2\/pages\/10346\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.hexorcism.com\/19BP\/wp-json\/wp\/v2\/media?parent=10346"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}