Climate Control - Datc: Diagnosis Ford Explorer V

DTC Chart: Heating, Ventilation, and Air Conditioning (HVAC) Module - DATC

Diagnostics in this service information assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to DIAGNOSTIC METHODS for information regarding Ford-specific diagnostic practices.

Note. Network DTCs (U-codes) are often a result of intermittent concerns such as damaged wiring or low battery voltage occurrences. Additionally, vehicle repair procedures, such as module reprogramming, often set network DTCs . Replacing a module to resolve a network DTC is unlikely to resolve the concern. To prevent repeat network DTC concerns, inspect all network wiring, especially connectors. Test the vehicle battery. REFER to DIAGNOSTIC ROUTINE A : Battery Condition Test.

HVAC MODULE - DATC DTC CHART

Related Module DTC Chart(s)

This table contains references to module DTC charts which are related to this system.

Symptom Chart: Climate Control - Dual Automatic Temperature Control (DATC)

Diagnostics in this service information assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to DIAGNOSTIC METHODS for information regarding Ford-specific diagnostic practices.

SYMPTOM CHART

Symptom Chart: NVH

Diagnostics in this service information assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to DIAGNOSTIC METHODS for information regarding Ford-specific diagnostic practices.

SYMPTOM CHART

Visual Inspection and Diagnostic Pre-checks

1. Inspect loose or corroded PCM and A/C pressure transducer connections.

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Scheme 35

1. CHECK THE PCM OUTPUT VOLTAGE Ignition OFF. Disconnect: A/C Pressure Transducer. Ignition ON. Measure: A/C Pressure Transducer Ground C1260 Ground Pin Circuit Measurement / Action Pin Circuit 3 LE424 (YE/GN) - Ground Is the voltage between 4.7 and 5.1 volts? Yes: GO to 4 . No: If the voltage is below 4.7 volts, GO to 2 . If the voltage is greater than 5.1 volts, REPAIR the circuit.
2. CHECK THE REFERENCE VOLTAGE CIRCUIT FOR A SHORT TO GROUND Ignition OFF. Disconnect: PCM C175B (3.5L) or C1381B (2.0L). Disconnect: Generator Current Sensor. Measure: A/C Pressure Transducer Ground C1260 Ground Pin Circuit Measurement / Action Pin Circuit 3 LE424 (YE/GN) - Ground Is the resistance greater than 10, 000 ohms? Yes: GO to 3 . No: REPAIR the circuit.
3. CHECK THE REFERENCE VOLTAGE CIRCUIT FOR AN OPEN 3.5L engine, measure: A/C Pressure Transducer PCM C1260 C175B Pin Circuit Measurement / Action Pin Circuit 3 LE424 (YE/GN) 52 LE424 (YE/GN) 2.0L engine, measure: A/C Pressure Transducer PCM C1260 C1381B Pin Circuit Measurement / Action Pin Circuit 3 LE424 (YE/GN) 31 LE424 (YE/GN) Is the resistance less than 3 ohms? Yes: GO to 12 . No: REPAIR the circuit.
4. CHECK THE PCM SENSOR GROUND Measure: A/C Pressure Transducer A/C Pressure Transducer C1260 C1260 Pin Circuit Measurement / Action Pin Circuit 1 LE424 (YE/GN) 3 RE407 (YE/VT) Is the voltage greater than 4.7 volts? Yes: If diagnosing DTC P0532, GO to 5 . If diagnosing DTC P0533, GO to 9 . No: REPAIR the circuit.
5. CHECK THE A/C PRESSURE SENSOR (ACP_V) PCM PID WITH THE A/C PRESSURE TRANSDUCER SHORTED Ignition OFF. Connect a fused jumper wire: A/C Pressure Transducer A/C Pressure Transducer C1260 C1260 Pin Circuit Measurement / Action Pin Circuit 3 LE424 (YE/GN) 2 VH433 (VT/OG) Ignition ON. Using a scan tool, view PCM PIDs . Monitor the PCM PID ACP_V. Does the PID voltage read between 4.7 and 5.1 volts? Yes: REMOVE the jumper wire. INSTALL a new A/C pressure transducer. No: REMOVE the jumper wire. GO to 6 .
6. CHECK THE A/C PRESSURE TRANSDUCER FEEDBACK CIRCUIT FOR A SHORT TO THE SIGNAL RETURN CIRCUIT Ignition OFF. Disconnect: PCM C175B (3.5L) or C1381B (2.0L). Measure: A/C Pressure Transducer A/C Pressure Transducer C1260 C1260 Pin Circuit Measurement / Action Pin Circuit 2 VH433 (VT/OG) 1 RE407 (YE/VT) Is the resistance greater than 10, 000 ohms? Yes: GO to 7 . No: REPAIR the circuits.
7. CHECK THE A/C PRESSURE TRANSDUCER FEEDBACK CIRCUIT FOR AN OPEN 3.5L engine, measure: A/C Pressure Transducer PCM C1260 C175B Pin Circuit Measurement / Action Pin Circuit 2 VH433 (VT/OG) 31 VH433 (VT/OG) 2.0L engine, measure: A/C Pressure Transducer PCM C1260 C1381B Pin Circuit Measurement / Action Pin Circuit 2 VH433 (VT/OG) 51 VH433 (VT/OG) Is the resistance less than 3 ohms? Yes: GO to 8 . No: REPAIR the circuit.
8. CHECK THE A/C PRESSURE TRANSDUCER FEEDBACK CIRCUIT FOR SHORT TO GROUND Measure: A/C Pressure Transducer Ground C1260 Ground Pin Circuit Measurement / Action Pin Circuit 2 VH433 (VT/OG) - Ground Is the resistance greater than 10, 000 ohms? Yes: GO to 12 . No: REPAIR the circuit.
9. CHECK THE A/C PRESSURE TRANSDUCER Using a scan tool, view PCM PIDs . Monitor the PCM PID ACP_V. Does the PID voltage read 0 volts? Yes: INSTALL a new A/C pressure transducer. No: GO to 10 .
10. CHECK THE A/C PRESSURE TRANSDUCER FEEDBACK CIRCUIT FOR A SHORT TO VOLTAGE Ignition OFF. Disconnect: PCM C175B (3.5L) or C1381B (2.0L). Ignition ON. Measure: A/C Pressure Transducer Ground C1260 Ground Pin Circuit Measurement / Action Pin Circuit 2 VH433 (VT/OG) - Ground Is any voltage present? Yes: REPAIR the circuit. No: GO to 11 .
11. CHECK THE A/C PRESSURE TRANSDUCER FEEDBACK CIRCUIT FOR A SHORT TO THE REFERENCE VOLTAGE CIRCUIT Ignition OFF. Measure: A/C Pressure Transducer A/C Pressure Transducer C1260 C1260 Pin Circuit Measurement / Action Pin Circuit 2 VH433 (VT/OG) 3 LE424 (YE/GN) Is the resistance greater than 10, 000 ohms? Yes: GO to 12 . No: REPAIR the circuit.
12. CHECK FOR CORRECT PCM OPERATION Ignition OFF. Disconnect and inspect all PCM connectors. Repair: corrosion (install new connector or terminals - clean module pins) damaged or bent pins - install new terminals/pins pushed-out pins - install new pins as necessary Reconnect the PCM connectors. Make sure they seat and latch correctly. Operate the system and determine if the concern is still present. Is the concern still present? Yes: CHECK OASIS for any applicable TSBs . If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, INSTALL a new PCM: REFER to «POWERTRAIN CONTROL MODULE (PCM) - 2.0L GTDI»(ref-517566-S00665914912012121200000) , or REFER to «POWERTRAIN CONTROL MODULE (PCM) - 3.5L TI-VCT»(ref-517566-S09666002682012121200000) . No: The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

1. Inspect BJB fuse 70 (10A).
2. Inspect the PCM wiring, terminals or connectors.
3. Inspect for loose or corroded PCM connections.
4. Inspect the A/C clutch relay.

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1. CHECK THE VOLTAGE TO THE A/C CLUTCH RELAY Ignition OFF. Disconnect: A/C Clutch Relay. Ignition ON. Measure: BJB Ground A/C Clutch Relay Socket Ground Pin Circuit Measurement / Action Pin Circuit 2 CBK03 (GY) - Ground Is the voltage greater than 11 volts? Yes: GO to 2 . No: VERIFY BJB fuse 70 (10A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the appropriate wiring diagrams to identify the possible causes of the circuit short. REFER to «OEM FUSE AND RELAY INFORMATION»(ref-485835) and «OEM WIRING DIAGRAMS»(ref-514995) .
2. CHECK THE A/C CLUTCH RELAY Carry out the Relay - Ultra Micro ISO component test on the A/C clutch relay. Refer to the OEM Wiring Diagrams - «COMPONENT TESTING»(ref-485880-S28878950282012071400000) . Did the relay pass the component test? Yes: GO to 3 . No: INSTALL a new A/C clutch relay.
3. CHECK THE A/C CLUTCH RELAY COIL SWITCHED GROUND CIRCUIT FOR A SHORT TO VOLTAGE Ignition OFF. Disconnect: PCM C175B (3.5L) or C1381B (2.0L). Ignition ON. 3.5L engine, measure: PCM Ground C175B Ground Pin Circuit Measurement / Action Pin Circuit 12 CH302 (WH/BN) - Ground 2.0L engine, measure: PCM Ground C1381B Ground Pin Circuit Measurement / Action Pin Circuit 10 CH302 (WH/BN) - Ground Is any voltage present? Yes: REPAIR the circuit. No: GO to 4 .
4. CHECK THE A/C CLUTCH RELAY COIL SWITCHED GROUND CIRCUIT FOR A SHORT TO GROUND Ignition OFF. 3.5L engine, measure: PCM Ground C175B Ground Pin Circuit Measurement / Action Pin Circuit 12 CH302 (WH/BN) - Ground 2.0L engine, measure: PCM Ground C1381B Ground Pin Circuit Measurement / Action Pin Circuit 10 CH302 (WH/BN) - Ground Is the resistance greater than 10, 000 ohms? Yes: GO to 5 . No: REPAIR the circuit.
5. CHECK THE A/C CLUTCH RELAY COIL SWITCH GROUND CIRCUIT FOR AN OPEN 3.5L engine, measure: BJB PCM A/C Clutch Relay Socket C175B Pin Circuit Measurement / Action Pin Circuit 1 CH302 (WH/BN) 12 CH302 (WH/BN) 2.0L engine, measure: BJB PCM A/C Clutch Relay Socket C1381B Pin Circuit Measurement / Action Pin Circuit 1 CH302 (WH/BN) 10 CH302 (WH/BN) Is the resistance less than 3 ohms? Yes: GO to 6 . No: REPAIR the circuit.
6. CHECK FOR CORRECT PCM OPERATION Ignition OFF. Disconnect and inspect all PCM connectors. Repair: corrosion (install new connector or terminals - clean module pins) damaged or bent pins - install new terminals/pins pushed-out pins - install new pins as necessary Reconnect the PCM connectors. Make sure they seat and latch correctly. Operate the system and determine if the concern is still present. Is the concern still present? Yes: CHECK OASIS for any applicable TSBs . If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, INSTALL a new PCM: REFER to «POWERTRAIN CONTROL MODULE (PCM) - 2.0L GTDI»(ref-517566-S00665914912012121200000) , or REFER to «POWERTRAIN CONTROL MODULE (PCM) - 3.5L TI-VCT»(ref-517566-S09666002682012121200000) . No: The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

Pinpoint Test

1. CHECK THE HVAC MODULE DTCs Ignition ON. Review the recorded DTCs from the HVAC module self-test. Is DTC C1B14:11 present? Yes: GO to 2 . No: GO to 5 .
2. CHECK THE REFERENCE VOLTAGE CIRCUIT FOR A SHORT TO GROUND Ignition OFF. Disconnect: HVAC Module C228A. Disconnect: HVAC Module C228B. Disconnect: Auxiliary Climate Control Assembly. Measure: HVAC Module Ground C228A Ground Pin Circuit Measurement / Action Pin Circuit 24 LH111 (BN/WH) - Ground Is the resistance greater than 10, 000 ohms? Yes: GO to 3 . No: REPAIR the circuit.
3. CHECK THE REFERENCE VOLTAGE CIRCUIT AND THE SIGNAL RETURN CIRCUIT FOR A SHORT TOGETHER Connect: Auxiliary Climate Control Assembly. Measure: HVAC Module HVAC Module C228A C228A Pin Circuit Measurement / Action Pin Circuit 24 LH111 (BN/WH) 23 RH111 (GY/BU) Is the resistance greater than 200 ohms? Yes: GO to 6 . No: GO to 4 .
4. CHECK THE ACTUATORS Measure: HVAC Module HVAC Module C228A C228A Pin Circuit Measurement / Action Pin Circuit 24 LH111 (BN/WH) 23 RH111 (GY/BU) While measuring the resistance, disconnect the components one at a time, in order. Stop disconnecting components if the measured resistance rises above 200 ohms: Defrost/panel/floor door actuator LH temperature blend door actuator RH temperature blend door actuator Recirculation door actuator In-vehicle temperature/humidity sensor Auxiliary mode door actuator Auxiliary temperature blend door actuator Auxiliary climate control assembly Did the resistance rise above 200 ohms? Yes: INSTALL a new component in question (the last one to be disconnected). No: REPAIR the circuits.
5. CHECK THE REFERENCE VOLTAGE CIRCUIT FOR A SHORT TO VOLTAGE Ignition OFF. Disconnect: HVAC Module C228A. Ignition ON. Measure: HVAC Module Ground C228A Ground Pin Circuit Measurement / Action Pin Circuit 24 LH111 (BN/WH) - Ground Is any voltage present? Yes: REPAIR the circuit. No: GO to 6 .
6. CHECK FOR CORRECT HVAC MODULE OPERATION Ignition OFF. Disconnect and inspect all HVAC module connectors. Repair: corrosion (install new connector or terminals - clean module pins) damaged or bent pins - install new terminals/pins pushed-out pins - install new pins as necessary Reconnect the HVAC module connectors. Make sure they seat and latch correctly. Operate the system and determine if the concern is still present. Is the concern still present? Yes: CHECK OASIS for any applicable TSBs . If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, INSTALL a new HVAC module. REFER to «Heating Ventilation Air Conditioning (HVAC) Module»(ref-517581-S13895863382012121200000) . No: The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

1. VERIFY THE CUSTOMER CONCERN Ignition ON. Verify there is an observable symptom present. Is an observable symptom present? Yes: GO to 2 . No: The system is operating normally at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.
2. CHECK THE COMMUNICATION NETWORK Ignition ON. Using a scan tool, perform the network test. Does the BCM pass the network test? Yes: GO to 3 . No: REFER to «DIAGNOSTIC ROUTINE I»(ref-517597-S36367030732012121200000) : The Body Control Module (BCM) Does Not Respond To The Scan Tool.
3. RETRIEVE THE RECORDED DTCs FROM THE BCM SELF-TEST Using a scan tool, perform BCM self-test. Check for recorded DTCs from the BCM self-test. Is DTC U3003:16 or DTC U3003:17 recorded? Yes: REFER to «DIAGNOSTIC ROUTINE H»(ref-517607-S02573080562012121200000) : DTC U3003:16. REFER to «DIAGNOSTIC ROUTINE I»(ref-517607-S13088851592012121200000) : DTC U3003:17. No : GO to 4 .
4. RETRIEVE THE RECORDED DTCs FROM THE HVAC MODULE SELF-TEST Using a scan tool, perform HVAC Module self-test. Check for recorded DTCs from the HVAC module self-test. Is DTC U3003:16 or DTC U3003:17 recorded? Yes: REFER to «Diagnostic Routine H: U3003:16, U3003:17»(ref-517581-S11868833552012121200000) . No: GO to 5 .
5. RECHECK THE HVAC MODULE DTCs NOTE: If new modules were installed prior to the DTC being set, the module configuration may be incorrectly set during the PMI or the PMI may not have been carried out. Clear the DTCs . Wait 10 seconds. Using a scan tool, repeat the HVAC module self-test. Is DTC U0140:00 still present? Yes: If the vehicle is equipped with a DSM, GO to 6 . Otherwise, GO to 7 . No: The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.
6. CHECK FOR DTC U0140:00 SET IN OTHER MODULES Clear all DTCs . Ignition OFF. Ignition ON. Wait 10 seconds. Using a scan tool, perform a self-test. Retrieve the continuous memory DTCs from all modules. Is DTC U0140:00 set in the DSM? Yes: GO to 7 . No: GO to 8 .
7. CHECK FOR CORRECT BCM OPERATION Ignition OFF. Disconnect and inspect all the BCM connectors. Repair: corrosion (install new connector or terminals - clean module pins) damaged or bent pins - install new terminals/pins pushed-out pins - install new pins as necessary Reconnect the BCM connectors. Make sure they seat and latch correctly. Operate the system and determine if the concern is still present. Is the concern still present? Yes: CHECK OASIS for any applicable TSBs . If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, Install a new BCM: REFER to «BODY CONTROL MODULE (BCM) - WITHOUT INTELLIGENT ACCESS (IA)»(ref-517607-S10277508012012121200000) , or REFER to «BODY CONTROL MODULE (BCM) - WITH INTELLIGENT ACCESS (IA)»(ref-517607-S22029955872012121200000) . No: The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.
8. CHECK FOR CORRECT HVAC MODULE OPERATION Ignition OFF. Disconnect and inspect all the HVAC module connectors. Repair: corrosion (install new connector or terminals - clean module pins) damaged or bent pins - install new terminals/pins pushed-out pins - install new pins as necessary Reconnect the HVAC module connectors. Make sure they seat and latch correctly. Operate the system and determine if the concern is still present. Is the concern still present? Yes: CHECK OASIS for any applicable TSBs . If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, INSTALL a new HVAC module. REFER to «Heating Ventilation Air Conditioning (HVAC) Module»(ref-517581-S13895863382012121200000) . No: The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

1. Inspect the generator and battery wiring, terminals or connectors.
2. Inspect for loose or corroded generator and battery connections.

1. CLEAR DTCs Ignition ON. Using a scan tool, clear all DTCs . Using a scan tool, perform a HVAC module self-test. Is DTC U3003:16 or U3003:17 present? Yes: GO to 2 . No: The system is operating normally at this time. The DTC may have been set due to a previous battery condition.
2. RETRIEVE PCM DTCs Start the engine. Using a scan tool, perform PCM self-test. Are any charging system DTCs present in the PCM? Yes: REFER to «SYMPTOM CHART: CHARGING SYSTEM»(ref-517537-S08093258202012121200000) for diagnosis of the battery and charging system. No: GO to 3 .
3. CHECK BATTERY CONDITION Ignition OFF. Carry out the Battery Condition Test. REFER to «DIAGNOSTIC ROUTINE A»(ref-517589-S25875569842012121200000) : Battery Condition Test. Does the battery pass the condition test? Yes: GO to 4 . No: INSTALL a new battery. REFER to «REMOVAL AND INSTALLATION»(ref-517589-S33724863572012121200000) .
4. CHECK THE CHARGING SYSTEM VOLTAGE NOTE: Do not allow the engine RPM to exceed 2, 000 RPM while carrying out this step or the generator may self-excite, resulting in default charging system output voltage. If engine RPM has exceeded 2, 000 RPM, shut the vehicle off and restart the engine before carrying out this step. Start the engine. Measure the voltage of the battery: For DTC U3003:17, turn off all accessories and run the engine at 1, 500 RPM for a minimum of 2 minutes. For DTC U3003:16, turn on headlights and HVAC fan on high and run engine at 1, 500 RPM for a minimum of 2 minutes. Is the battery voltage between 13-15.2 volts? Yes: For DTC U3003:16, GO to 5 . For DTC U3003:17, GO to 7 . No: REFER to «SYMPTOM CHART: CHARGING SYSTEM»(ref-517537-S08093258202012121200000) to diagnose the charging system.
5. CHECK THE HVAC MODULE VOLTAGE SUPPLY CIRCUIT FOR HIGH RESISTANCE Ignition OFF. Measure and record the voltage at the battery. Disconnect: HVAC Module C228A. Ignition ON. Measure: HVAC Module Ground C228A Ground Pin Circuit Measurement / Action Pin Circuit 26 SBP46 (BN/RD) - Ground Is the voltage within 0.2 volt of the recorded battery voltage? Yes: GO to 6 . No: REPAIR the circuit.
6. CHECK THE HVAC MODULE GROUND CIRCUIT FOR HIGH RESISTANCE Ignition OFF. Measure: HVAC Module Ground C228A Ground Pin Circuit Measurement / Action Pin Circuit 10 GD215 (BK/GY) - Ground Is the resistance less than 3 ohms? Yes: GO to 7 . No: REPAIR the circuit.
7. CHECK FOR CORRECT HVAC MODULE OPERATION Ignition OFF. Disconnect and inspect all HVAC module connectors. Repair: corrosion (install new connector or terminals - clean module pins) damaged or bent pins - install new terminals/pins pushed-out pins - install new pins as necessary Reconnect the HVAC module connectors. Make sure they seat and latch correctly. Operate the system and determine if the concern is still present. Is the concern still present? Yes: CHECK OASIS for any applicable TSBs . If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, INSTALL a new HVAC module. REFER to «Heating Ventilation Air Conditioning (HVAC) Module»(ref-517581-S13895863382012121200000) . No: The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

1. PERFORM A SELF-TEST ON THE PCM AND HVAC MODULE Ignition ON. Using a scan tool, perform PCM and HVAC module self-tests. Are any climate control related DTCs present? Yes: For HVAC module DTCs , REFER to «DTC Chart: Heating, Ventilation, and Air Conditioning (HVAC) Module - DATC»(ref-517581-S20334473502012121200000) . For PCM DTCs , REFER to «DTC CHART: POWERTRAIN CONTROL MODULE (PCM)»(ref-517566-S33453853772012121200000) . No: GO to 2 .
2. CHECK THE BLOWER MOTOR OPERATION Ignition ON. Select panel mode. Observe blower motor operation and select each blower motor speed. Does the blower motor operate in all selections and change speed in each? Yes: GO to 3 . No: If the blower motor does not operate in any setting, REFER to «Diagnostic Routine R: The Blower Motor Is Inoperative»(ref-517581-S35099768492012121200000) . If the blower motor does not properly change speeds or shut off, REFER to «Diagnostic Routine S: The Blower Motor Does Not Operate Correctly»(ref-517581-S05958086642012121200000) .
3. CHECK AIRFLOW OPERATION Select the highest blower motor setting. NOTE: REFER to «System Operation»(ref-517581-S11044853382012121200000) for correct airflow descriptions. While observing the airflow, select each of the airflow positions (panel, panel/floor, floor, floor/defrost, defrost). Is the airflow directed to the correct outlets? Yes: GO to 4 . No: REFER to «Diagnostic Routine K: Incorrect or Erratic Direction of Airflow From Outlets»(ref-517581-S13840885332012121200000) .
4. CHECK THE RECIRCULATION OPERATION With the engine running, press the recirculation button (indicator off). Select panel mode. Select the highest blower motor setting. Observe airflow noise. Press the recirculation button (indicator on). Does the airflow noise increase when the recirculation mode is selected (indicator on)? Yes: GO to 5 . No: REFER to «Diagnostic Routine J: The Air Inlet Door Is Inoperative»(ref-517581-S29853171562012121200000) .
5. VERIFY TEMPERATURE CONTROL OPERATION Start the vehicle and allow it to reach normal operating temperature. With the A/C off, select panel mode. Change the temperature setting from the coldest to the warmest and back to the coldest. Does the temperature change between very warm to cool? Yes: GO to 6 . No: If the temperature does not get significantly warmer, REFER to «Diagnostic Routine L: Insufficient, Erratic, or No Heat»(ref-517581-S25046781652012121200000) . If the LH temperature does not change at all, REFER to «Diagnostic Routine P: The Temperature Control Is Inoperative or Does Not Operate Correctly - LH»(ref-517581-S11655025852012121200000) . If the RH temperature does not change at all, REFER to «Diagnostic Routine Q: The Temperature Control Is Inoperative or Does Not Operate Correctly - RH»(ref-517581-S29159220482012121200000) .
6. VERIFY THE A/C CLUTCH DOES NOT ENGAGE WITH A/C OFF With the engine running and the A/C off, select panel mode. Select the coldest temperature setting. Is the outlet temperature close to ambient temperature? Yes: GO to 7 . No: If the LH temperature is warmer than ambient temperature, REFER to «Diagnostic Routine P: The Temperature Control Is Inoperative or Does Not Operate Correctly - LH»(ref-517581-S11655025852012121200000) . If the RH temperature is warmer than ambient temperature, REFER to «Diagnostic Routine Q: The Temperature Control Is Inoperative or Does Not Operate Correctly - RH»(ref-517581-S29159220482012121200000) . If the outlet temperature is significantly colder than ambient temperature and the A/C compressor clutch cycles normally, REFER to «Diagnostic Routine O: The Air Conditioning (AC) Is Always On - AC Mode Always Commanded On»(ref-517581-S24298618002012121200000) . If the outlet temperature is significantly colder than ambient temperature and the A/C compressor clutch is engaged and does not cycle, REFER to «Diagnostic Routine N: The Air Conditioning (AC) Is Always On - AC Compressor Does Not Cycle»(ref-517581-S32297476282012121200000) .
7. VERIFY A/C CLUTCH ENGAGEMENT IN THE A/C MODE Make sure the ambient air temperature is above 2 C (36 F). With the engine running, select panel mode. Press the A/C button (indicator on). Does the A/C clutch engage when the panel and A/C button (indicator on) is pressed? Yes: GO to 8 . No: REFER to «Diagnostic Routine M: The Air Conditioning (AC) Is Inoperative»(ref-517581-S28282369982012121200000) .
8. CHECK FOR INSUFFICIENT COOLING Change the temperature setting to coldest (MAX A/C). Press the A/C button if the indicator is not on. Does the Air Conditioning (A/C) compressor clutch engage and cycle on/off when the A/C indicator is on? Yes: GO to 9 . No: REFER to «Refrigerant System Tests»(ref-517581-S24027418502012121200000) .
9. CHECK THE INT_TEMP PID Using a scan tool, view the HVAC module PIDs . Monitor HVAC module PID INT_TEMP. Is the air temperature at the cabin temperature sensor similar to the PID? Yes: GO to 10 . No: REFER to «Diagnostic Routine D: B1A61:11, B1A61:15»(ref-517581-S10025364202012121200000) .
10. CHECK TOUCHSCREEN OPERATION Using the touchscreen controls, select each climate control function. Using the touchscreen controls, select each audio control function. Do all touchscreen controls operate? Yes: The system is operating correctly. No: For Premium Plus, REFER to «INFORMATION AND ENTERTAINMENT SYSTEM -- PREMIUM PLUS»(ref-538890-S03593269342013033000000) . For Sony® Sound, REFER to «PINPOINT TEST W: THE TOUCHSCREEN IS INOPERATIVE OR DOES NOT OPERATE CORRECTLY»(ref-538891-S15500278972013033000000) .

Note. Access to the air inlet mode door actuator motor connector in this pinpoint test is difficult. Before disconnecting the air inlet mode door actuator motor connector, visually inspect the actuator and its harness for obvious damage. If no damage is evident, proceed with the test.

1. CHECK THE HVAC MODULE FOR DTCs Ignition ON. Using a scan tool, perform a HVAC module self-test. Are any DTCs present? Yes: For DTC B1083:11, GO to 3 . For DTC B1083:12, GO to 4 . For DTC B1083:13, GO to 6 . For DTC B11F0:11, GO to 7 . For DTC B11F0:15, GO to 9 . No: GO to 2 .
2. CHECK THE AIR INLET MODE DOOR ACTUATOR OPERATION USING ACTIVE COMMANDS Ignition ON. Using a scan tool, view HVAC module PIDs . Monitor the HVAC module PID RECIRC_DPOS. Select panel mode. Select the highest blower motor setting. Monitor airflow noise while using the scan tool to operate the HVAC module active command RECIRC_DPOS, increasing and decreasing the percentage value. Does the airflow noise change when the active command is changed? Yes : INSTALL a new FCIM. REFER to «FRONT CONTROLS INTERFACE MODULE (FCIM)»(ref-538889-S40961126222013033000000) - (Premium), REFER to «FRONT CONTROLS INTERFACE MODULE (FCIM)»(ref-538890-S40042572692013033000000) - (Premium Plus), or REFER to «FRONT CONTROLS INTERFACE MODULE (FCIM)»(ref-538891-S32340284562013033000000) - (Sony® Sound). No: INSPECT for broken linkage or door. REPAIR as necessary. If no condition is found, GO to 14 .
3. CHECK THE AIR INLET MODE DOOR ACTUATOR MOTOR CIRCUITS FOR A SHORT TO GROUND Ignition OFF. Disconnect: HVAC Module C228A. Disconnect: Air Inlet Mode Door Actuator. Measure: HVAC Module Ground C228A Ground Pin Circuit Measurement / Action Pin Circuit 2 CH208 (GN/OG) - Ground 3 CH207 (BU/GY) - Ground Are the resistances greater than 10, 000 ohms? Yes: GO to 5 . No: REPAIR the circuit in question.
4. CHECK THE AIR INLET MODE DOOR ACTUATOR MOTOR CIRCUITS FOR A SHORT TO VOLTAGE Ignition OFF. Disconnect: Air Inlet Mode Door Actuator. Disconnect: HVAC Module C228A. Ignition ON. Measure: HVAC Module Ground C228A Ground Pin Circuit Measurement / Action Pin Circuit 2 CH208 (GN/OG) - Ground 3 CH207 (BU/GY) - Ground Is any voltage present? Yes: REPAIR the circuit in question. No: GO to 5 .
5. CHECK THE AIR INLET MODE DOOR ACTUATOR MOTOR CIRCUITS FOR A SHORT TOGETHER Ignition OFF. Measure: HVAC Module HVAC Module C228A C228A Pin Circuit Measurement / Action Pin Circuit 2 CH208 (GN/OG) 3 CH207 (BU/GY) Is the resistance greater than 10, 000 ohms? Yes: GO to 14 . No: REPAIR the circuits.
6. CHECK THE AIR INLET MODE DOOR ACTUATOR MOTOR CIRCUITS FOR AN OPEN Ignition OFF. Disconnect: HVAC Module C228A. Disconnect: Air Inlet Mode Door Actuator. Measure: HVAC Module Air Inlet Mode Door Actuator C228A C289 Pin Circuit Measurement / Action Pin Circuit 2 CH208 (GN/OG) 5 CH208 (GN/OG) 3 CH207 (BU/GY) 6 CH207 (BU/GY) Are the resistances less than 3 ohms? Yes: GO to 14 . No: REPAIR the circuit in question.
7. CHECK THE AIR INLET MODE DOOR ACTUATOR FEEDBACK CIRCUIT FOR A SHORT TO GROUND Ignition OFF. Disconnect: HVAC Module C228A. Disconnect: Air Inlet Mode Door Actuator. Measure: HVAC Module Ground C228A Ground Pin Circuit Measurement / Action Pin Circuit 16 VH438 (GN/VT) - Ground Is the resistance greater than 10, 000 ohms? Yes: GO to 8 . No: REPAIR the circuit.
8. CHECK THE SIGNAL RETURN CIRCUIT FOR A SHORT TO THE AIR INLET MODE DOOR ACTUATOR FEEDBACK CIRCUIT Measure: HVAC Module HVAC Module C228A C228A Pin Circuit Measurement / Action Pin Circuit 16 VH438 (GN/VT) 23 RH111 (GY/BU) Is the resistance greater than 10, 000 ohms? Yes: GO to 14 . No: REPAIR the circuits.
9. CHECK THE AIR INLET MODE DOOR ACTUATOR FEEDBACK CIRCUIT FOR A SHORT TO VOLTAGE Ignition OFF. Disconnect: HVAC Module C228A. Disconnect: Air Inlet Mode Door Actuator. Ignition ON. Measure: HVAC Module Ground C228A Ground Pin Circuit Measurement / Action Pin Circuit 16 VH438 (GN/VT) - Ground Is any voltage present? Yes: REPAIR the circuit. No: GO to 10 .
10. CHECK THE REFERENCE VOLTAGE CIRCUIT FOR AN OPEN Ignition OFF. Measure: HVAC Module Air Inlet Door Actuator C228A C289 Pin Circuit Measurement / Action Pin Circuit 24 LH111 (BN/WH) 1 LH111 (BN/WH) Is the resistance less than 3 ohms? Yes: GO to 11 . No: REPAIR the circuit.
11. CHECK THE REFERENCE VOLTAGE CIRCUIT FOR A SHORT TO THE AIR INLET MODE DOOR ACTUATOR FEEDBACK CIRCUIT Ignition OFF. Measure: HVAC Module HVAC Module C228A C228A Pin Circuit Measurement / Action Pin Circuit 16 VH438 (GN/VT) 24 LH111 (BN/WH) Is the resistance greater than 10, 000 ohms? Yes: GO to 12 . No: REPAIR the circuits.
12. CHECK THE AIR INLET MODE DOOR ACTUATOR FEEDBACK CIRCUIT FOR AN OPEN Measure: HVAC Module Air Inlet Mode Door Actuator C228A C289 Pin Circuit Measurement / Action Pin Circuit 16 VH438 (GN/VT) 2 VH438 (GN/VT) Is the resistance less than 3 ohms? Yes: GO to 13 . No: REPAIR the circuit.
13. CHECK THE AIR INLET MODE DOOR ACTUATOR RETURN CIRCUIT FOR AN OPEN Measure: HVAC Module Air Inlet Mode Door Actuator C228A C289 Pin Circuit Measurement / Action Pin Circuit 23 RH111 (GY/BU) 3 RH111 (GY/BU) Is the resistance less than 3 ohms? Yes: GO to 14 . No: REPAIR the circuit.
14. CHECK FOR CORRECT AIR INLET MODE DOOR ACTUATOR OPERATION Ignition OFF. Disconnect and inspect the air inlet mode door actuator connector. Repair: corrosion (install new connector or terminals - clean module pins) damaged or bent pins - install new terminals/pins pushed-out pins - install new pins as necessary Reconnect the air inlet mode door actuator connector. Make sure it seats and latches correctly. Reconnect the HVAC module connectors. Make sure they seat and latch correctly. Clear the DTCs . Operate the system and determine if the concern is still present. Is the concern still present? Yes: INSTALL a new Air Inlet Mode Door Actuator, REFER to «Mode Door Actuator - Air Inlet Door»(ref-517581-S41544750652012121200000) . TEST the system for normal operation. If the concern is still present, GO to 15 . No: The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.
15. MODULE ACTUATOR POSITION CALIBRATION NOTE: The purpose of the module actuator position calibration is to allow the HVAC module to reinitialize and calibrate the actuator stop points. Ignition OFF. Disconnect and inspect all HVAC module connectors. Repair: corrosion (install new connector or terminals - clean module pins) damaged or bent pins - install new terminals/pins pushed-out pins - install new pins as necessary Reconnect the HVAC module connectors. Make sure they seat and latch correctly. Ignition ON. Clear the DTCs . Using a scan tool, perform HVAC Module self-test. Select any position except OFF. NOTE: The HVAC module initializes and calibrates the actuators. Calibration of the actuators takes approximately 30 seconds. Operate the system and determine if the concern is still present. Is the concern still present? Yes: CHECK OASIS for any applicable TSBs . If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, INSTALL a new HVAC module. REFER to «Heating Ventilation Air Conditioning (HVAC) Module»(ref-517581-S13895863382012121200000) . No: The system is now operating correctly at this time. The concern may have been caused by a foreign object in the HVAC case or temporary binding that restricted actuator door travel. CHECK any actuator external linkage. If condition recurs, INSPECT actuator linkage and door for binding and CHECK HVAC case for foreign objects.

Note. Access to the defrost/panel/floor mode door actuator motor connector in this pinpoint test is difficult. Before disconnecting the defrost/panel/floor mode door actuator motor connector, visually inspect the actuator and its harness for obvious damage. If no damage is evident, proceed with the test.

1. CHECK THE HVAC MODULE FOR DTCs Ignition ON. Using a scan tool, perform a HVAC module self-test. Are any DTCs present? Yes: For DTC B1086:11, GO to 3 . For DTC B1086:12, GO to 4 . For DTC B1086:13, GO to 6 . For DTC B11E7:11, GO to 7 . For DTC B11E7:15, GO to 9 . No: GO to 2 .
2. CHECK THE DEFROST/PANEL/FLOOR MODE DOOR ACTUATOR OPERATION USING ACTIVE COMMANDS Ignition ON. Using a scan tool, view HVAC module PIDs . Monitor the HVAC module PID AIR_MODE_DPOS. Select panel mode. Select the highest blower motor setting. Observe airflow while using the scan tool to operate the HVAC module active command AIR_MODE_DPOS, increasing and decreasing the percentage value. Does the airflow change between the defrost, panel and floor outlets when the active command is changed? Yes : INSTALL a new FCIM. REFER to «FRONT CONTROLS INTERFACE MODULE (FCIM)»(ref-538889-S40961126222013033000000) - (Premium), REFER to «FRONT CONTROLS INTERFACE MODULE (FCIM)»(ref-538890-S40042572692013033000000) - (Premium Plus), or REFER to «FRONT CONTROLS INTERFACE MODULE (FCIM)»(ref-538891-S32340284562013033000000) - (Sony® Sound). No: INSPECT for broken linkage or door. REPAIR as necessary. If no condition is found, GO to 14 .
3. CHECK THE DEFROST/PANEL/FLOOR MODE DOOR ACTUATOR MOTOR CIRCUITS FOR A SHORT TO GROUND Ignition OFF. Disconnect: HVAC Module C228A. Disconnect: Defrost/Panel/Floor Mode Door Actuator. Measure: HVAC Module Ground C228A Ground Pin Circuit Measurement / Action Pin Circuit 6 CH228 (YE/GY) - Ground 7 CH229 (WH/BU) - Ground Are the resistances greater than 10, 000 ohms? Yes: GO to 5 . No: REPAIR the circuit in question.
4. CHECK THE DEFROST/PANEL/FLOOR MODE DOOR ACTUATOR MOTOR CIRCUITS FOR A SHORT TO VOLTAGE Ignition OFF. Disconnect: HVAC Module C228A. Disconnect: Defrost/Panel/Floor Mode Door Actuator. Ignition ON. Measure: HVAC Module Ground C228A Ground Pin Circuit Measurement / Action Pin Circuit 6 CH228 (YE/GY) - Ground 7 CH229 (WH/BU) - Ground Is any voltage present? Yes: REPAIR the circuit in question. No: GO to 5 .
5. CHECK THE DEFROST/PANEL/FLOOR MODE DOOR ACTUATOR MOTOR CIRCUITS FOR A SHORT TOGETHER Ignition OFF. Disconnect: Defrost/Panel/Floor Mode Door Actuator. Measure: HVAC Module HVAC Module C228A C228A Pin Circuit Measurement / Action Pin Circuit 6 CH228 (YE/GY) 7 CH229 (WH/BU) Is the resistance greater than 10, 000 ohms? Yes: GO to 14 . No: REPAIR the circuits.
6. CHECK THE DEFROST/PANEL/FLOOR MODE DOOR ACTUATOR MOTOR CIRCUITS FOR AN OPEN Ignition OFF. Disconnect: HVAC Module C228A. Disconnect: Defrost/Panel/Floor Mode Door Actuator. Measure: HVAC Module Defrost/Panel/Floor Mode Door Actuator C228A C236 Pin Circuit Measurement / Action Pin Circuit 6 CH228 (YE/GY) 6 CH228 (YE/GY) 7 CH229 (WH/BU) 1 CH229 (WH/BU) Are the resistances less than 3 ohms? Yes: GO to 14 . No: REPAIR the circuit in question.
7. CHECK THE DEFROST/PANEL/FLOOR MODE DOOR ACTUATOR FEEDBACK CIRCUIT FOR A SHORT TO GROUND Ignition OFF. Disconnect: HVAC Module C228A. Disconnect: Defrost/Panel/Floor Mode Door Actuator. Measure: HVAC Module Ground C228A Ground Pin Circuit Measurement / Action Pin Circuit 21 VH436 (YE/VT) - Ground Is the resistance greater than 10, 000 ohms? Yes: GO to 8 . No: REPAIR the circuit.
8. CHECK THE SIGNAL RETURN CIRCUIT FOR A SHORT TO THE DEFROST/PANEL/FLOOR MODE DOOR ACTUATOR FEEDBACK CIRCUIT Measure: HVAC Module HVAC Module C228A C228A Pin Circuit Measurement / Action Pin Circuit 21 VH436 (YE/VT) 23 RH111 (GY/BU) Is the resistance greater than 10, 000 ohms? Yes: GO to 14 . No: REPAIR the circuits.
9. CHECK THE DEFROST/PANEL/FLOOR MODE DOOR ACTUATOR FEEDBACK CIRCUIT FOR A SHORT TO VOLTAGE Ignition OFF. Disconnect: HVAC Module C228A. Disconnect: Defrost/Panel/Floor Mode Door Actuator. Ignition ON. Measure: HVAC Module Ground C228A Ground Pin Circuit Measurement / Action Pin Circuit 21 VH436 (YE/VT) - Ground Is any voltage present? Yes: REPAIR the circuit. No: GO to 10 .
10. CHECK THE REFERENCE VOLTAGE CIRCUIT FOR AN OPEN Ignition OFF. Measure: HVAC Module Defrost/Panel/Floor Door Actuator C228A C236 Pin Circuit Measurement / Action Pin Circuit 24 LH111 (BN/WH) 2 LH111 (BN/WH) Is the resistance less than 3 ohms? Yes: GO to 11 . No: REPAIR the circuit.
11. CHECK THE REFERENCE VOLTAGE CIRCUIT FOR A SHORT TO THE DEFROST/PANEL/FLOOR MODE DOOR ACTUATOR FEEDBACK CIRCUIT Ignition OFF. Measure: HVAC Module HVAC Module C228A C228A Pin Circuit Measurement / Action Pin Circuit 21 VH436 (YE/VT) 24 LH111 (BN/WH) Is the resistance greater than 10, 000 ohms? Yes: GO to 12 . No: REPAIR the circuits.
12. CHECK THE DEFROST/PANEL/FLOOR MODE DOOR ACTUATOR FEEDBACK CIRCUIT FOR AN OPEN Measure: HVAC Module Defrost/Panel/Floor Door Actuator C228A C236 Pin Circuit Measurement / Action Pin Circuit 21 VH436 (YE/VT) 4 VH436 (YE/VT) Is the resistance less than 3 ohms? Yes: GO to 13 . No: REPAIR the circuit.
13. CHECK THE DEFROST/PANEL/FLOOR MODE DOOR ACTUATOR RETURN CIRCUIT FOR AN OPEN Measure: HVAC Module Defrost/Panel/Floor Door Actuator C228A C236 Pin Circuit Measurement / Action Pin Circuit 23 RH111 (GY/BU) 3 RH111 (GY/BU) Is the resistance less than 3 ohms? Yes: GO to 14 . No: REPAIR the circuit.
14. CHECK FOR CORRECT DEFROST/PANEL/FLOOR MODE DOOR ACTUATOR OPERATION Ignition OFF. Disconnect and inspect the defrost/panel/floor mode door actuator connector. Repair: corrosion (install new connector or terminals - clean module pins) damaged or bent pins - install new terminals/pins pushed-out pins - install new pins as necessary Reconnect the defrost/panel/floor mode door actuator connector. Make sure it seats and latches correctly. Reconnect the HVAC module connectors. Make sure they seat and latch correctly. Clear the DTCs . Operate the system and determine if the concern is still present. Is the concern still present? Yes: INSTALL a new Defrost/Panel/Floor Mode Door Actuator, REFER to «Mode Door Actuator - Defrost-Panel-Floor Door»(ref-517581-S29539457862012121200000) . TEST the system for normal operation. If the concern is still present, GO to 15 . No: The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.
15. MODULE ACTUATOR POSITION CALIBRATION NOTE: The purpose of the module actuator position calibration is to allow the HVAC module to reinitialize and calibrate the actuator stop points. Ignition OFF. Disconnect and inspect all HVAC module connectors. Repair: corrosion (install new connector or terminals - clean module pins) damaged or bent pins - install new terminals/pins pushed-out pins - install new pins as necessary Reconnect the HVAC module connectors. Make sure they seat and latch correctly. Ignition ON. Clear the DTCs . Using a scan tool, perform HVAC Module self-test. Select any position except OFF. NOTE: The HVAC module initializes and calibrates the actuators. Calibration of the actuators takes approximately 30 seconds. Operate the system and determine if the concern is still present. Is the concern still present? Yes: CHECK OASIS for any applicable TSBs . If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, INSTALL a new HVAC module. REFER to «Heating Ventilation Air Conditioning (HVAC) Module»(ref-517581-S13895863382012121200000) . No: The system is now operating correctly at this time. The concern may have been caused by a foreign object in the HVAC case or temporary binding that restricted actuator door travel. CHECK any actuator external linkage. If condition recurs, INSPECT actuator linkage and door for binding and CHECK HVAC case for foreign objects.

1. Inspect for low engine coolant level.

1. CHECK FOR CORRECT ENGINE COOLANT LEVEL Ignition OFF. Check the engine coolant level. Is the engine coolant at the correct level as indicated on the engine coolant recovery reservoir? Yes: GO to 2 . No: REFER to «DIAGNOSTIC ROUTINE A»(ref-517561-S00145793142012121200000) : Loss of Coolant.
2. CHECK FOR COOLANT FLOW TO THE HEATER CORE Run the engine until it reaches normal operating temperature. Select the floor position. Set the temperature control to full warm and the blower to the lowest setting. Using a suitable temperature measuring device, check the heater core inlet hose to see if it is hot. Is the heater core inlet hose temperature above 66 C (150 F)? Yes: GO to 3 . No: REFER to «DIAGNOSTIC ROUTINE C»(ref-517561-S17054273682012121200000) : The Engine Does Not Reach Normal Operating Temperature.
3. CHECK FOR A PLUGGED OR RESTRICTED HEATER CORE Using a suitable temperature measuring device, measure the heater core outlet hose temperature. Is the heater core outlet hose temperature similar to the inlet hose temperature (within approximately 6 C (43 F) - 17 C (63 F))? Yes: For inadequate temperature out of the LH side, REFER to «Diagnostic Routine P: The Temperature Control Is Inoperative or Does Not Operate Correctly - LH»(ref-517581-S11655025852012121200000) . For inadequate temperature out of the RH side, REFER to «Diagnostic Routine Q: The Temperature Control Is Inoperative or Does Not Operate Correctly - RH»(ref-517581-S29159220482012121200000) . No: INSTALL a new heater core. REFER to «Heater Core»(ref-517581-S35414539422012121200000) .

1. Inspect the BJB fuse 62 (10A).
2. Inspect the A/C clutch relay.
3. Inspect for A/C system discharged/low charge.

Scheme 38

1. CHECK THE A/C SYSTEM PRESSURE Ignition OFF. With a manifold gauge set connected, check the A/C system pressure. Is the A/C system pressure above 290 kPa (42 psi)? Yes: GO to 2 . No: CHECK the A/C system for leaks. REFER to «Fluorescent Dye Leak Detection»(ref-517581-S32335891942012121200000) or REFER to «Electronic Leak Detection»(ref-517581-S27558634582012121200000) . RECHARGE the A/C system. REFER to «Air Conditioning (AC) System Recovery, Evacuation, and Charging»(ref-517581-S30981876462012121200000) .
2. CHECK THE A/C PRESSURE SENSOR (ACP_PRESS) PID Ignition ON. Using a scan tool, view PCM PIDs . With a manifold gauge set connected, compare the pressure readings of the manifold gauge set and the PCM PID ACP_PRESS. Are the pressure values of the manifold gauge set and the PID similar? Yes: GO to 3 . No: INSTALL a new A/C pressure transducer.
3. CHECK THE A/C EVAPORATOR TEMPERATURE (EVAP_TEMP) PID Allow the vehicle exterior and interior to stabilize to the ambient temperature. Using a scan tool, view the HVAC module PIDs . Monitor the HVAC module PID EVAP_TEMP. Does the PID read similar to the ambient temperature? Yes: GO to 4 . No: INSTALL a new evaporator discharge air temperature sensor. REFER to «Control Components - Exploded View»(ref-517581-S37343797002012121200000) .
4. CHECK THE A/C SWITCH (CC_SW_AC) PID WITH THE A/C ON Using a scan tool, view the FCIM PIDs . Monitor the FCIM PID CC_SW_AC. Select panel, press the A/C button (indicator on) on the HVAC controls. Does the PID read Active when the button is pressed? Yes: GO to 5 . No : INSTALL a new FCIM. REFER to «FRONT CONTROLS INTERFACE MODULE (FCIM)»(ref-538889-S40961126222013033000000) - (Premium), REFER to «FRONT CONTROLS INTERFACE MODULE (FCIM)»(ref-538890-S40042572692013033000000) - (Premium Plus), or REFER to «FRONT CONTROLS INTERFACE MODULE (FCIM)»(ref-538891-S32340284562013033000000) - (Sony® Sound).
5. CHECK THE A/C REQUEST SIGNAL (AC_REQ) PID WITH THE A/C ON Using a scan tool, view the PCM PIDs . With the A/C activated from the HVAC controls, monitor the PCM PID AC_REQ. Does the PID read ON? Yes: GO to 6 . No: GO to 12 .
6. CHECK THE A/C COMPRESSOR COMMANDED STATE (ACC_CMD) PID WITH THE A/C ON KOER. Using a scan tool, view the PCM PIDs . Turn the A/C compressor on using the PCM PID ACC_CMD. Does the A/C compressor turn on? Yes: GO to 13 . No: GO to 7 .
7. CHECK THE VOLTAGE TO THE A/C CLUTCH RELAY Ignition OFF. Disconnect: A/C Clutch Relay. Measure: BJB Ground A/C Clutch Relay Socket Ground Pin Circuit Measurement / Action Pin Circuit 3 SBB62 (BN/RD) - Ground Is the voltage greater than 11 volts? Yes: GO to 8 . No: VERIFY BJB fuse 62 (10A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the appropriate wiring diagrams to identify the possible causes of the circuit short. REFER to «OEM FUSE AND RELAY INFORMATION»(ref-485835) and «OEM WIRING DIAGRAMS»(ref-514995) .
8. BYPASS THE A/C CLUTCH RELAY Start the engine. Connect a fused jumper wire: BJB BJB A/C Clutch Relay Socket A/C Clutch Relay Socket Pin Circuit Measurement / Action Pin Circuit 3 SBB62 (BN/RD) 5 CH401 (VT/WH) Does the A/C compressor clutch engage? Yes: REMOVE the jumper wire. INSTALL a new A/C clutch relay. No: LEAVE the jumper wire installed. GO to 9 .
9. CHECK THE A/C COMPRESSOR CLUTCH FIELD COIL VOLTAGE SUPPLY CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: A/C Compressor Clutch Field Coil. Measure: A/C Compressor Clutch Field Coil Ground C100 Ground Pin Circuit Measurement / Action Pin Circuit 1 CH401 (VT/WH) - Ground Is the voltage greater than 11 volts? Yes: REMOVE the jumper wire. GO to 10 . No: REMOVE the jumper wire. REPAIR the circuit.
10. CHECK THE A/C COMPRESSOR CLUTCH FIELD COIL GROUND CIRCUIT FOR AN OPEN Measure: A/C Compressor Clutch Field Coil Ground C100 Ground Pin Circuit Measurement / Action Pin Circuit 2 GD120 (BK/GN) - Ground Is the resistance less than 3 ohms? Yes: GO to 11 . No: REPAIR the circuit.
11. CHECK THE A/C COMPRESSOR CLUTCH AIR GAP Measure the A/C compressor clutch air gap at 3 equally spaced locations between the clutch hub and the A/C compressor clutch pulley. Is the A/C compressor clutch air gap greater than 0.6 mm (0.0236 in)? Yes: ADJUST the A/C compressor clutch gap. REFER to «Air Conditioning (AC) Clutch Air Gap Adjustment»(ref-517581-S03315905942012121200000) . No: INSTALL a new A/C compressor clutch field coil.
12. CHECK FOR CORRECT HVAC MODULE OPERATION Ignition OFF. Disconnect and inspect all HVAC module connectors. Repair: corrosion (install new connector or terminals - clean module pins) damaged or bent pins - install new terminals/pins pushed-out pins - install new pins as necessary Reconnect the HVAC module connectors. Make sure they seat and latch correctly. Operate the system and determine if the concern is still present. Is the concern still present? Yes: CHECK OASIS for any applicable TSBs . If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, INSTALL a new HVAC module. REFER to «Heating Ventilation Air Conditioning (HVAC) Module»(ref-517581-S13895863382012121200000) . No: The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.
13. CHECK FOR CORRECT PCM OPERATION Ignition OFF. Disconnect and inspect all PCM connectors. Repair: corrosion (install new connector or terminals - clean module pins) damaged or bent pins - install new terminals/pins pushed-out pins - install new pins as necessary Reconnect the PCM connectors. Make sure they seat and latch correctly. Operate the system and determine if the concern is still present. Is the concern still present? Yes: CHECK OASIS for any applicable TSBs . If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, INSTALL a new PCM: REFER to «POWERTRAIN CONTROL MODULE (PCM) - 2.0L GTDI»(ref-517566-S00665914912012121200000) , or REFER to «POWERTRAIN CONTROL MODULE (PCM) - 3.5L TI-VCT»(ref-517566-S09666002682012121200000) . No: The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

1. Inspect the A/C clutch relay

1. CHECK THE PCM FOR DTCs Ignition ON. Using a scan tool, perform a PCM self-test. Is DTC P0645:00 present? Yes: REFER to «Diagnostic Routine B: P0645:00»(ref-517581-S37213565022012121200000) . No: GO to 2 .
2. CHECK THE A/C COMPRESSOR CLUTCH ENGAGEMENT WITH RELAY DISCONNECTED Ignition OFF. Disconnect: A/C Clutch Relay. KOER. With the engine running, observe the A/C compressor clutch. Is the A/C compressor on? Yes: GO to 3 . No: GO to 5 .
3. CHECK THE POWER CIRCUIT TO THE A/C CLUTCH FOR A SHORT TO POWER Ignition OFF. Disconnect: A/C Clutch Relay. Ignition ON. Measure: BJB Ground A/C Clutch Relay Socket Ground Pin Circuit Measurement / Action Pin Circuit 5 CH401 (VT/WH) - - Is any voltage present? Yes: REPAIR the circuit. No: GO to 4 .
4. CHECK THE A/C COMPRESSOR CLUTCH AIR GAP Measure the A/C compressor clutch air gap at 3 equally spaced locations between the clutch hub and the A/C compressor clutch pulley. Is the A/C compressor clutch air gap less than 0.35 mm (0.0138 in)? Yes: ADJUST the A/C compressor clutch gap. REFER to «Air Conditioning (AC) Clutch Air Gap Adjustment»(ref-517581-S03315905942012121200000) . No: INSTALL a new A/C compressor clutch field coil.
5. CHECK THE A/C CLUTCH RELAY FUNCTIONALITY Using a known good A/C clutch relay, check the A/C compressor clutch for correct operation. Is the A/C compressor on? Yes: INSTALL a new A/C clutch relay. No: GO to 6 .
6. CHECK FOR CORRECT PCM OPERATION Ignition OFF. Disconnect and inspect all PCM connectors. Repair: corrosion (install new connector or terminals - clean module pins) damaged or bent pins - install new terminals/pins pushed-out pins - install new pins as necessary Reconnect the PCM connectors. Make sure they seat and latch correctly. Operate the system and determine if the concern is still present. Is the concern still present? Yes: CHECK OASIS for any applicable TSBs . If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, INSTALL a new PCM: REFER to «POWERTRAIN CONTROL MODULE (PCM) - 2.0L GTDI»(ref-517566-S00665914912012121200000) , or REFER to «POWERTRAIN CONTROL MODULE (PCM) - 3.5L TI-VCT»(ref-517566-S09666002682012121200000) . No: The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

1. CHECK THE A/C SWITCH STATUS (CC_SW_AC) PID WITH THE A/C OFF Ignition ON. Using a scan tool, view FCIM PIDs . Monitor the FCIM PID CC_SW_AC. Select panel press and release the A/C button (indicator off) on the HVAC controls. Does the PID read Active when pressed and Inactive when released? Yes: GO to 2 . No : INSTALL a new FCIM. REFER to «FRONT CONTROLS INTERFACE MODULE (FCIM)»(ref-538889-S40961126222013033000000) - (Premium), REFER to «FRONT CONTROLS INTERFACE MODULE (FCIM)»(ref-538890-S40042572692013033000000) - (Premium Plus), or REFER to «FRONT CONTROLS INTERFACE MODULE (FCIM)»(ref-538891-S32340284562013033000000) - (Sony® Sound).
2. CHECK THE A/C REQUEST SIGNAL (AC_REQ) PID WITH THE A/C OFF Using a scan tool, view PCM PIDs . Deactivate the A/C using the HVAC controls. Monitor the PCM PID AC_REQ. Does the PID read OFF? Yes: GO to 4 . No: GO to 3 .
3. CHECK FOR CORRECT HVAC MODULE OPERATION Ignition OFF. Disconnect and inspect all HVAC module connectors. Repair: corrosion (install new connector or terminals - clean module pins) damaged or bent pins - install new terminals/pins pushed-out pins - install new pins as necessary Reconnect the HVAC module connectors. Make sure they seat and latch correctly. Operate the system and determine if the concern is still present. Is the concern still present? Yes: CHECK OASIS for any applicable TSBs . If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, INSTALL a new HVAC module. REFER to «Heating Ventilation Air Conditioning (HVAC) Module»(ref-517581-S13895863382012121200000) . No: The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.
4. CHECK FOR CORRECT PCM OPERATION Ignition OFF. Disconnect and inspect all PCM connectors. Repair: corrosion (install new connector or terminals - clean module pins) damaged or bent pins - install new terminals/pins pushed-out pins - install new pins as necessary Reconnect the PCM connectors. Make sure they seat and latch correctly. Operate the system and determine if the concern is still present. Is the concern still present? Yes: CHECK OASIS for any applicable TSBs . If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, INSTALL a new PCM: REFER to «POWERTRAIN CONTROL MODULE (PCM) - 2.0L GTDI»(ref-517566-S00665914912012121200000) , or REFER to «POWERTRAIN CONTROL MODULE (PCM) - 3.5L TI-VCT»(ref-517566-S09666002682012121200000) . No: The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

Note. The LH temperature blend door actuator connector in the pinpoint test is difficult to access. Before disconnecting the LH temperature blend door actuator, visually inspect the actuator and its harness for obvious damage. If no damage is evident, proceed with the test.

1. CHECK THE HVAC MODULE FOR DTCs Ignition ON. Using a scan tool, perform a HVAC module self-test. Are any DTCs present? Yes: For DTC B1081:11, GO to 3 . For DTC B1081:12, GO to 4 . For DTC B1081:13, GO to 5 . For DTC B11E5:11, GO to 7 . For DTC B11E5:15, GO to 9 . No: GO to 2 .
2. CHECK THE LH TEMPERATURE BLEND DOOR ACTUATOR OPERATION USING ACTIVE COMMANDS Start the engine. Run the engine until it reaches normal operating temperature. Using a scan tool, view HVAC module PIDs . Select panel mode on the HVAC controls. Select the highest blower motor setting. Monitor airflow while using the scan tool to operate the HVAC module active command LEFT_BLEND, increasing and decreasing the percentage value. Does the airflow temperature change between warm and cold when the active command is changed? Yes : INSTALL a new FCIM. REFER to «FRONT CONTROLS INTERFACE MODULE (FCIM)»(ref-538889-S40961126222013033000000) - (Premium), REFER to «FRONT CONTROLS INTERFACE MODULE (FCIM)»(ref-538890-S40042572692013033000000) - (Premium Plus), or REFER to «FRONT CONTROLS INTERFACE MODULE (FCIM)»(ref-538891-S32340284562013033000000) - (Sony® Sound). No: INSPECT for broken linkage or door. REPAIR as necessary. If no condition is found, GO to 14 .
3. CHECK THE LH TEMPERATURE BLEND DOOR ACTUATOR MOTOR CIRCUITS FOR A SHORT TO GROUND Ignition OFF. Disconnect: LH Temperature Blend Door Actuator. Disconnect: HVAC Module C228A. Measure: HVAC Module Ground C228A Ground Pin Circuit Measurement / Action Pin Circuit 8 CH238 (YE/OG) - Ground 9 CH239 (BU/WH) - Ground Are the resistances greater than 10, 000 ohms? Yes: GO to 6 . No: REPAIR the circuit in question.
4. CHECK THE LH TEMPERATURE BLEND DOOR ACTUATOR MOTOR CIRCUITS FOR A SHORT TO VOLTAGE Ignition OFF. Disconnect: LH Temperature Blend Door Actuator. Disconnect: HVAC Module C228A. Ignition ON. Measure: HVAC Module Ground C228A Ground Pin Circuit Measurement / Action Pin Circuit 8 CH238 (YE/OG) - Ground 9 CH239 (BU/WH) - Ground Is any voltage present? Yes: REPAIR the circuit in question. No: GO to 6 .
5. CHECK THE LH TEMPERATURE BLEND DOOR ACTUATOR MOTOR CIRCUITS FOR AN OPEN Ignition OFF. Disconnect: HVAC Module C228A. Disconnect: LH Temperature Blend Door Actuator. Measure: HVAC Module LH Temperature Blend Door Actuator C228A C2091 Pin Circuit Measurement / Action Pin Circuit 8 CH238 (YE/OG) 6 CH238 (YE/OG) 9 CH239 (BU/WH) 5 CH239 (BU/WH) Are the resistances less than 3 ohms? Yes: GO to 14 . No: REPAIR the circuit in question.
6. CHECK THE LH TEMPERATURE BLEND DOOR ACTUATOR MOTOR CIRCUITS FOR A SHORT TOGETHER Ignition OFF. Measure: HVAC Module HVAC Module C228A C228A Pin Circuit Measurement / Action Pin Circuit 8 CH238 (YE/OG) 9 CH239 (BU/WH) Is the resistance greater than 10, 000 ohms? Yes: GO to 14 . No: REPAIR the circuit.
7. CHECK THE LH TEMPERATURE BLEND DOOR ACTUATOR FEEDBACK CIRCUIT FOR A SHORT TO GROUND Ignition OFF. Disconnect: HVAC Module C228A. Disconnect: LH Temperature Blend Door Actuator. Measure: HVAC Module Ground C228A Ground Pin Circuit Measurement / Action Pin Circuit 20 VH440 (BU/BN) - Ground Is the resistance greater than 10, 000 ohms? Yes: GO to 8 . No: REPAIR the circuit.
8. CHECK THE SIGNAL RETURN CIRCUIT FOR A SHORT TO THE LH TEMPERATURE BLEND DOOR ACTUATOR FEEDBACK CIRCUIT Measure: HVAC Module HVAC Module C228A C228A Pin Circuit Measurement / Action Pin Circuit 23 RH111 (GY/BU) 20 VH440 (BU/BN) Is the resistance greater than 10, 000 ohms? Yes: GO to 14 . No: REPAIR the circuits.
9. CHECK THE LH TEMPERATURE BLEND DOOR ACTUATOR FEEDBACK CIRCUIT FOR A SHORT TO VOLTAGE Ignition OFF. Disconnect: HVAC Module C228A. Disconnect: LH Temperature Blend Door Actuator. Ignition ON. Measure: HVAC Module Ground C228A Ground Pin Circuit Measurement / Action Pin Circuit 20 VH440 (BU/BN) - Ground Is any voltage present? Yes: REPAIR the circuits. No: GO to 10 .
10. CHECK THE REFERENCE VOLTAGE CIRCUIT FOR AN OPEN Ignition OFF. Measure: HVAC Module LH Temperature Blend Door Actuator C228A C2091 Pin Circuit Measurement / Action Pin Circuit 24 LH111 (BN/WH) 3 LH111 (BN/WH) Is the resistance less than 3 ohms? Yes: GO to 11 . No: REPAIR the circuit.
11. CHECK THE REFERENCE VOLTAGE CIRCUIT FOR A SHORT TO THE LH TEMPERATURE BLEND DOOR ACTUATOR FEEDBACK CIRCUIT Ignition OFF. Measure: HVAC Module HVAC Module C228A C228A Pin Circuit Measurement / Action Pin Circuit 24 LH111 (BN/WH) 20 VH440 (BU/BN) Is the resistance greater than 10, 000 ohms? Yes: GO to 12 . No: REPAIR the circuits.
12. CHECK THE LH TEMPERATURE BLEND DOOR ACTUATOR FEEDBACK CIRCUIT FOR AN OPEN Measure: HVAC Module LH Temperature Blend Door Actuator C228A C2091 Pin Circuit Measurement / Action Pin Circuit 20 VH440 (BU/BN) 2 VH440 (BU/BN) Is the resistance less than 3 ohms? Yes: GO to 13 . No: REPAIR the circuit.
13. CHECK THE LH TEMPERATURE BLEND DOOR ACTUATOR RETURN SIGNAL RETURN CIRCUIT FOR AN OPEN Measure: HVAC Module LH Temperature Blend Door Actuator C228A C2091 Pin Circuit Measurement / Action Pin Circuit 23 RH111 (GY/BU) 1 RH111 (GY/BU) Is the resistance less than 3 ohms? Yes: GO to 14 . No: REPAIR the circuit.
14. CHECK FOR CORRECT LH TEMPERATURE BLEND DOOR ACTUATOR OPERATION Disconnect and inspect the temperature blend door actuator connector. Repair: corrosion (install new connector or terminals - clean module pins) damaged or bent pins - install new terminals/pins pushed-out pins - install new pins as necessary Reconnect the temperature blend door actuator connector. Make sure it seats and latches correctly. Reconnect the HVAC module connectors. Make sure they seat and latch correctly. Operate the system and determine if the concern is still present. Is the concern still present? Yes: INSTALL a new LH Temperature Blend Door Actuator, REFER to «Temperature Blend Door Actuator - LH»(ref-517581-S13398692342012121200000) . TEST the system for normal operation. If the concern is still present, GO to 15 . No: The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.
15. MODULE ACTUATOR POSITION CALIBRATION NOTE: The purpose of the module actuator position calibration is to allow the HVAC module to reinitialize and calibrate the actuator stop points. Ignition OFF. Disconnect and inspect all HVAC module connectors. Repair: corrosion (install new connector or terminals - clean module pins) damaged or bent pins - install new terminals/pins pushed-out pins - install new pins as necessary Reconnect the HVAC module connectors. Make sure they seat and latch correctly. Clear the DTCs . Using a scan tool, perform HVAC Module self-test. Select any position except OFF. NOTE: The HVAC module initializes and calibrates the actuators. Calibration of the actuators will take approximately 30 seconds. Operate the system and verify the concern is still present. Is the concern still present? Yes: CHECK OASIS for any applicable TSBs . If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, INSTALL a new HVAC module. REFER to «Heating Ventilation Air Conditioning (HVAC) Module»(ref-517581-S13895863382012121200000) . No: The system is now operating correctly at this time. The concern may have been caused by a foreign object in the HVAC case or temporary binding that restricted actuator door travel. CHECK any actuator external linkage. If condition recurs, INSPECT actuator linkage and door for binding and CHECK HVAC case for foreign objects.

Note. The RH temperature blend door actuator connector in the pinpoint test is difficult to access. Before disconnecting the RH temperature blend door actuator, visually inspect the actuator and its harness for obvious damage. If no damage is evident, proceed with the test.

Scheme 39

Scheme 40

Scheme 41

Scheme 42

Scheme 43

1. CHECK THE HVAC MODULE FOR DTCs Ignition ON. Using a scan tool, perform a HVAC module self-test. Are any DTCs present? Yes: For DTC B1082:11, GO to 3 . For DTC B1082:12, GO to 4 . For DTC B1082:13, GO to 5 . For DTC B11E6:11, GO to 7 . For DTC B11E6:15, GO to 9 . No: GO to 2 .
2. CHECK THE RH TEMPERATURE BLEND DOOR ACTUATOR OPERATION USING ACTIVE COMMANDS Start the engine. Run the engine until it reaches normal operating temperature. Using a scan tool, view HVAC module PIDs . Select PANEL mode on the HVAC controls. Select the highest blower motor setting. Monitor airflow while using the scan tool to operate the HVAC module active command RIGHT_BLEND, increasing and decreasing the percentage value. Does the airflow temperature change between warm and cold when the active command is changed? Yes : INSTALL a new FCIM. REFER to «FRONT CONTROLS INTERFACE MODULE (FCIM)»(ref-538889-S40961126222013033000000) - (Premium), REFER to «FRONT CONTROLS INTERFACE MODULE (FCIM)»(ref-538890-S40042572692013033000000) - (Premium Plus), or REFER to «FRONT CONTROLS INTERFACE MODULE (FCIM)»(ref-538891-S32340284562013033000000) - (Sony® Sound). No: INSPECT for broken linkage or door. REPAIR as necessary. If no condition is found, GO to 14 .
3. CHECK THE RH TEMPERATURE BLEND DOOR ACTUATOR MOTOR CIRCUITS FOR A SHORT TO GROUND Ignition OFF. Disconnect: HVAC Module C228B. Disconnect: RH Temperature Blend Door Actuator. Measure: HVAC Module Ground C228B Ground Pin Circuit Measurement / Action Pin Circuit 13 CH213 (BN/GN) - Ground 12 CH212 (BU/OG) - Ground Are the resistances greater than 10, 000 ohms? Yes: GO to 6 . No: REPAIR the circuit in question.
4. CHECK THE RH TEMPERATURE BLEND DOOR ACTUATOR MOTOR CIRCUITS FOR A SHORT TO VOLTAGE Ignition OFF. Disconnect: RH Temperature Blend Door Actuator. Disconnect: HVAC Module C228A. Disconnect: HVAC Module C228B. Ignition ON. Measure: HVAC Module Ground C228B Ground Pin Circuit Measurement / Action Pin Circuit 13 CH213 (BN/GN) - Ground 12 CH212 (BU/OG) - Ground Is any voltage present? Yes: REPAIR the circuit in question. No: GO to 6 .
5. CHECK THE RH TEMPERATURE BLEND DOOR ACTUATOR MOTOR CIRCUITS FOR AN OPEN Ignition OFF. Disconnect: HVAC Module C228B. Disconnect: RH Temperature Blend Door Actuator. Measure: HVAC Module RH Temperature Blend Door Actuator C228B C2092 Pin Circuit Measurement / Action Pin Circuit 12 CH212 (BU/OG) 6 CH212 (BU/OG) 13 CH213 (BN/GN) 5 CH213 (BN/GN) Are the resistances less than 3 ohms? Yes: GO to 14 . No: REPAIR the circuit in question.
6. CHECK THE RH TEMPERATURE BLEND DOOR ACTUATOR MOTOR CIRCUITS FOR A SHORT TOGETHER NOTE: Access to the connector in the following step is difficult. Before carrying out this step, visually inspect the actuator and its harness for obvious damage. If no damage is evident, proceed with the test. Ignition OFF. Disconnect: RH Temperature Blend Door Actuator. Measure: HVAC Module HVAC Module C228B C228B Pin Circuit Measurement / Action Pin Circuit 12 CH212 (BU/OG) 13 CH213 (BN/GN) Is the resistance greater than 10, 000 ohms? Yes: GO to 14 . No: REPAIR the circuits.
7. CHECK THE RH TEMPERATURE BLEND DOOR ACTUATOR FEEDBACK CIRCUIT FOR A SHORT TO GROUND Ignition OFF. Disconnect: RH Temperature Blend Door Actuator. Disconnect: HVAC Module C228A. Disconnect: HVAC Module C228B. Measure: HVAC Module Ground C228B Ground Pin Circuit Measurement / Action Pin Circuit 4 VH441 (WH/BN) - Ground Is the resistance greater than 10, 000 ohms? Yes: GO to 8 . No: REPAIR the circuit.
8. CHECK THE SIGNAL RETURN CIRCUIT FOR A SHORT TO THE RH TEMPERATURE BLEND DOOR ACTUATOR FEEDBACK CIRCUIT Measure: HVAC Module HVAC Module C228A C228B Pin Circuit Measurement / Action Pin Circuit 23 RH111 (GY/BU) 4 VH441 (WH/BN) Is the resistance greater than 10, 000 ohms? Yes: GO to 14 . No: REPAIR the circuits.
9. CHECK THE RH TEMPERATURE BLEND DOOR ACTUATOR FEEDBACK CIRCUIT FOR A SHORT TO VOLTAGE Ignition OFF. Disconnect: HVAC Module C228A. Disconnect: HVAC Module C228B. Disconnect: RH Temperature Blend Door Actuator. Ignition ON. Measure: HVAC Module Ground C228B Ground Pin Circuit Measurement / Action Pin Circuit 4 VH441 (WH/BN) - Ground Is any voltage present? Yes: REPAIR the circuit. No: GO to 10 .
10. CHECK THE REFERENCE VOLTAGE CIRCUIT FOR AN OPEN Ignition OFF. Measure: HVAC Module RH Temperature Blend Door Actuator C228A C2092 Pin Circuit Measurement / Action Pin Circuit 24 LH111 (BN/WH) 1 LH111 (BN/WH) Is the resistance less than 3 ohms? Yes: GO to 11 . No: REPAIR the circuit.
11. CHECK THE REFERENCE VOLTAGE CIRCUIT FOR A SHORT TO THE RH TEMPERATURE BLEND DOOR ACTUATOR FEEDBACK CIRCUIT Ignition OFF. Measure: HVAC Module HVAC Module C228A C228B Pin Circuit Measurement / Action Pin Circuit 24 LH111 (BN/WH) 4 VH441 (WH/BN) Is the resistance greater than 10, 000 ohms? Yes: GO to 12 . No: REPAIR the circuits.
12. CHECK THE RH TEMPERATURE BLEND DOOR ACTUATOR FEEDBACK CIRCUIT FOR AN OPEN Measure: HVAC Module RH Temperature Blend Door Actuator C228B C2092 Pin Circuit Measurement / Action Pin Circuit 4 VH441 (WH/BN) 2 VH441 (VT/GN) Is the resistance less than 3 ohms? Yes: GO to 13 . No: REPAIR the circuit.
13. CHECK THE RH TEMPERATURE BLEND DOOR ACTUATOR RETURN SIGNAL RETURN CIRCUIT FOR AN OPEN Measure: HVAC Module RH Temperature Blend Door Actuator C228A C2092 Pin Circuit Measurement / Action Pin Circuit 23 RH111 (GY/BU) 3 RH111 (GY/BU) Is the resistance less than 3 ohms? Yes: GO to 14 . No: REPAIR the circuit.
14. CHECK FOR CORRECT RH TEMPERATURE BLEND DOOR ACTUATOR OPERATION Disconnect and inspect the RH temperature blend door actuator connector. Repair: corrosion (install new connector or terminals - clean module pins) damaged or bent pins - install new terminals/pins pushed-out pins - install new pins as necessary Reconnect the RH temperature blend door actuator connector. Make sure it seats and latches correctly. Reconnect the HVAC module connectors. Make sure they seat and latch correctly. Operate the system and determine if the concern is still present. Is the concern still present? Yes: INSTALL a new RH Temperature Blend Door Actuator, REFER to «Temperature Blend Door Actuator - RH»(ref-517581-S13585819262012121200000) . TEST the system for normal operation. If the concern is still present, GO to 15 . No: The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.
15. MODULE ACTUATOR POSITION CALIBRATION NOTE: The purpose of the module actuator position calibration is to allow the HVAC module to reinitialize and calibrate the actuator stop points. Ignition OFF. Disconnect and inspect all HVAC module connectors. Repair: corrosion (install new connector or terminals - clean module pins) damaged or bent pins - install new terminals/pins pushed-out pins - install new pins as necessary Reconnect the HVAC module connectors. Make sure they seat and latch correctly. Clear the DTCs . Using a scan tool, perform HVAC Module self-test. Select any position except OFF NOTE: The HVAC module initializes and calibrates the actuators. Calibration of the actuators will take approximately 30 seconds. Operate the system and verify the concern is still present. Is the concern still present? Yes: CHECK OASIS for any applicable TSBs . If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, INSTALL a new HVAC module. REFER to «Heating Ventilation Air Conditioning (HVAC) Module»(ref-517581-S13895863382012121200000) . No: The system is now operating correctly at this time. The concern may have been caused by a foreign object in the HVAC case or temporary binding that restricted actuator door travel. CHECK any actuator external linkage. If condition recurs, INSPECT actuator linkage and door for binding and CHECK HVAC case for foreign objects.

1. Inspect the blower motor relay.
2. Inspect BJB fuse 18 (40A).
3. Inspect BJB fuse 89 (5A).

1. CHECK THE HVAC MODULE FOR DTCs Ignition ON. Using a scan tool, perform the HVAC module self-test. Is DTC B10B9:12 present? Yes: GO to 7 . No: GO to 2 .
2. CHECK THE BLOWER MOTOR OPERATION USING ACTIVE COMMANDS Using a scan tool, view HVAC Module PIDs . Select panel mode on the HVAC controls. Select the lowest blower motor setting. Monitor blower motor speed while using the scan tool to operate the HVAC module active command BLOWRSPD, increasing and decreasing the percentage value. Does the blower motor speed change between low and high when the active command is changed? Yes : INSTALL a new FCIM. REFER to «FRONT CONTROLS INTERFACE MODULE (FCIM)»(ref-538889-S40961126222013033000000) - (Premium), REFER to «FRONT CONTROLS INTERFACE MODULE (FCIM)»(ref-538890-S40042572692013033000000) - (Premium Plus), or REFER to «FRONT CONTROLS INTERFACE MODULE (FCIM)»(ref-538891-S32340284562013033000000) - (Sony® Sound). No: GO to 3 .
3. CHECK THE BLOWER MOTOR RELAY COIL SWITCH GROUND CIRCUIT FOR A SHORT TO GROUND Ignition OFF. Disconnect: Blower Motor Relay. Disconnect: HVAC Module C228A. Measure: BJB Ground Blower Motor Relay Socket Ground Pin Circuit Measurement / Action Pin Circuit 1 CH123 (VT/GN) - Ground Is the resistance greater than 10, 000 ohms? Yes: GO to 4 . No: REPAIR the circuit.
4. CHECK THE BLOWER MOTOR VOLTAGE CIRCUIT FOR A SHORT TO VOLTAGE Disconnect: Blower Motor. Ignition ON. Measure: Blower Motor Ground C2004 Ground Pin Circuit Measurement / Action Pin Circuit 1 CH402 (YE/GN) - Ground Is any voltage present? Yes: GO to 5 . No: GO to 6 .
5. CHECK FOR VOLTAGE AT THE BLOWER MOTOR WITH THE BLOWER MOTOR RELAY DISCONNECTED Disconnect: Blower Motor Relay. Ignition ON. Measure: Blower Motor Ground C2004 Ground Pin Circuit Measurement / Action Pin Circuit 1 CH402 (YE/GN) - Ground Is any voltage present? Yes: REPAIR the circuit. No: INSTALL a new blower motor relay.
6. CHECK THE BLOWER MOTOR SPEED CONTROLLER FUNCTIONALITY Install a known good blower motor speed controller. Ignition ON. Operate the blower motor. Does the blower motor function correctly? Yes: INSTALL a new blower motor speed controller. REFER to «Blower Motor Speed Control»(ref-517581-S21945767782012121200000) . No: GO to 8 .
7. CHECK THE BLOWER MOTOR SPEED CONTROL COMMAND CIRCUIT FOR A SHORT TO VOLTAGE Ignition OFF. Disconnect: Blower Motor Speed Control. Disconnect: HVAC Module C228A. Ignition ON. Measure: Blower Motor Speed Control Ground C271 Ground Pin Circuit Measurement / Action Pin Circuit 3 VH101 (WH/VT) - Ground Is any voltage present? Yes: REPAIR the circuit. No: CONNECT blower motor speed control. GO to 8 .
8. CHECK FOR CORRECT HVAC MODULE OPERATION Ignition OFF. Disconnect and inspect all HVAC module connectors. Repair: corrosion (install new connector or terminals - clean module pins) damaged or bent pins - install new terminals/pins pushed-out pins - install new pins as necessary Reconnect the HVAC module connectors. Make sure they seat and latch correctly. Operate the system and determine if the concern is still present. Is the concern still present? Yes: CHECK OASIS for any applicable TSBs . If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, INSTALL a new HVAC module. REFER to «Heating Ventilation Air Conditioning (HVAC) Module»(ref-517581-S13895863382012121200000) . No: The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

1. CHECK THE ENGINE COOLING FAN (FAN_DSD) PCM PID OPERATION Ignition ON. Using a scan tool, view PCM PIDs . Monitor the PCM PID FAN_DSD. Command the to drive the cooling fan from 0 to 100% of performance and confirm the fan increases speed as the percentage of performance commanded is increased. Does the fan speed increase as the commanded performance is increased? Yes: REFER to «Refrigerant System Tests»(ref-517581-S24027418502012121200000) , procedure 2 to DIAGNOSE the A/C system. No: Install a new cooling fan REFER to «COOLING FAN MOTOR AND SHROUD - 2.0L GTDI»(ref-517561-S37419860512012121200000) , or REFER to «COOLING FAN MOTOR AND SHROUD - 3.5L TI-VCT»(ref-517561-S32293205212012121200000) .

Component Test

1. Perform the component test.

Scheme 44

1. Perform the component test.

1. Perform the component test.

Scheme 45

1. Perform the component test.

Scheme 46

1. Perform the component test.

1. NOTE: If a heater core leak is suspected, test the heater core by following the plugged heater core flow test before the heater core pressure test. Carry out a system inspection by checking the heater system thoroughly as follows: Inspect for evidence of coolant leakage at the heater hose to heater core attachments. A coolant leak in the heater hose could follow the heater core tube to the heater core and appear as a leak in the heater core.
2. NOTE: Spring-type clamps are installed as original equipment. Installation and overtightening of non-specified clamps can cause leakage at the heater hose connection and damage the heater core. Check the integrity of the heater hose clamps.

Heater Core - Pressure Test

1. NOTE: Due to space limitations, a bench test may be necessary for pressure testing. Drain the coolant from the cooling system.
2. Disconnect the heater hoses from the heater core.
3. Install a short piece of heater hose, approximately 101 mm (4 in) long on each heater core tube.
4. Fill the heater core and heater hoses with water and install the plug BT-7422-B and the adapter BT-7422-A from the Pressure Test Kit. Secure the heater hoses, plug and adapter with hose clamps.
5. Attach the pump and gauge assembly from the Pressure Test Kit to the adapter.
6. Close the bleed valve at the base of the gauge. Pump 138 kPa (20 psi) of air pressure into the heater core.
7. Observe the pressure gauge for a minimum of 3 minutes.
8. If the pressure drops, check the heater hose connections to the core tubes for leaks. If the heater hoses do not leak, remove the heater core from the vehicle and carry out the bench test.

Heater Core - Bench Test

1. Remove the heater core from the vehicle.
2. Drain all of the coolant from the heater core.
3. Connect the 101 mm (4 in) test heater hoses with plug and adapter to the core tubes. Then connect the Pressure Test Kit to the adapter.
4. Apply 138 kPa (20 psi) of air pressure to the heater core. Submerge the heater core in water.
5. If a leak is observed, install a new heater core.

1. Discharge and recover the refrigerant.
2. Disconnect the suspect evaporator core or condenser core from the A/C system.
3. Clean the manifold fittings.
4. Connect the appropriate test fittings from the A/C Flush Adapter Kit to the condenser or evaporator core tube connections.
5. NOTE: The automatic shut-off valves on some gauge set hoses do not open when connected to the test fittings. If available, use hoses without shut-off valves. If hoses with shut-off valves are used, make sure the valve opens when attached to the test fittings or install an adapter that will activate the valve. The test is not valid if the shut-off valve does not open. Connect the red and blue hoses from the R-134a Manifold Gauge Set to the test fittings on the evaporator core or condenser core. Connect the yellow hose to a known good vacuum pump.
6. Open both gauge set valves and start the vacuum pump. Allow the vacuum pump to operate for a minimum of 45 minutes after the gauge set low pressure gauge indicates 101 kPa (30 in-Hg). The 45-minute evacuation is necessary to remove any refrigerant from oil left in the evaporator core or condenser core. If the refrigerant is not completely removed from the oil, outgassing will degrade the vacuum and appear as a refrigerant leak.
7. If the low pressure gauge reading will not drop to 101 kPa (30 in-Hg) when the valves on the gauge and manifold set are open and the vacuum pump is operating, close the gauge set valves and observe the low pressure gauge. If the pressure rises rapidly to zero, a large leak is indicated. Recheck the test fitting connections and gauge set connections before installing a new evaporator core or condenser core.
8. After evacuating for 45 minutes, close the gauge set valves and stop the vacuum pump. Observe the low pressure gauge; it should remain at the 101 kPa (30 in-Hg) mark. If the low pressure gauge reading rises 34 or more kPa (10 or more in-Hg) of vacuum from the 101 kPa (30 in-Hg) position in 10 minutes, a leak is indicated. If a very small leak is suspected, wait 30 minutes and observe the vacuum gauge. If a small amount of vacuum is lost, operate the vacuum pump with gauge valves open for an additional 30 minutes to remove any remaining refrigerant from the oil in the evaporator core or condenser core. Then recheck for loss of vacuum. If a very small leak is suspected, allow the system to sit overnight with vacuum applied and check for vacuum loss.
9. If the evaporator core or condenser core does leak, as verified by the above procedure, install a new evaporator core or condenser core.

1. Install the adapter from the A/C Flush Adapter Kit on the port of the A/C compressor, using the existing manifold retaining bolt.
2. Connect the high and low pressure lines of a manifold gauge set or a refrigerant recovery/recycling station to the corresponding fittings on the adapter.
3. Attach the center hose of a manifold gauge set to a refrigerant container standing in an upright position.
4. Open the low pressure gauge valve, the high pressure gauge valve and the valve on the refrigerant container to allow the refrigerant vapor to flow into the A/C compressor.
5. Using the Refrigerant Leak Detector, check for leaks at the compressor shaft.
6. If an external leak is found, install a new A/C compressor.
7. When the leak test is complete, recover the refrigerant from the compressor.

Diagnostic Table

Note. The following table is used to guide diagnosis of the refrigerant system if operating pressures are outside normal limits.

1. Refer to the chart below. High (Discharge) Pressure Low (Suction) Pressure Component - Causes High or Clutch Cycling High Condenser - inadequate airflow. High Normal to High Engine - overheating. Normal to High Normal Refrigerant overcharge - air in refrigerant. Normal to Low Normal to High A/C suction line - partially restricted or plugged. (1) Normal to Low Low or Clutch Cycling Low refrigerant charge, A/C suction line -partially restricted or plugged. (2) Erratic Operation or Compressor Not Running Evaporator discharge air temperature sensor or A/C pressure transducer - poor connection at A/C clutch connector. A/C electrical circuit erratic - see A/C Electrical Circuit Wiring Diagram. Refer to «OEM WIRING DIAGRAMS»(ref-514995) . Normal to Low High Compressor - low performance. Additional Possible Cause Components Associated With Inadequate Compressor Operation Compressor drive belt - loose Compressor clutch - slipping Clutch coil open - shorted, or loose mounting HVAC module Clutch wiring circuit - high resistance, open or blown fuse Compressor operation interrupted by PCM Additional Possible Cause Components Associated With a Damaged Compressor Incorrect clutch air-gap Refrigerant leaks (1) Low pressure reading will be normal to high if restriction is downstream of service access valve. (2) Low pressure reading will be low if restriction is upstream of service access valve.