DTC P0111 Intake Air Temperature Sensor Circuit Range/Performance Problem - Honda Accord 2012-2017
DIY Honda Garage
[{'start': '1.120', 'end': '8.679', 'text': 'Welcome to the DIY Honda Garage channel.'}, {'start': '4.880', 'end': '11.360', 'text': 'The diagnostic trouble code DTC'}, {'start': '8.679', 'end': '14.400', 'text': 'P0111 indicates a malfunction in the'}, {'start': '11.360', 'end': '17.119', 'text': 'intake air temperature IAT sensor'}, {'start': '14.400', 'end': '20.640', 'text': 'circuit, specifically a range or'}, {'start': '17.119', 'end': '22.800', 'text': 'performance problem. The IAT sensor is a'}, {'start': '20.640', 'end': '25.680', 'text': "critical component in the vehicle's air"}, {'start': '22.800', 'end': '28.320', 'text': 'fuel ratio control system, helping to'}, {'start': '25.680', 'end': '31.039', 'text': 'optimize engine performance by measuring'}, {'start': '28.320', 'end': '33.040', 'text': 'the temperature of the incoming air.'}, {'start': '31.039', 'end': '34.719', 'text': 'This sensor is essentially a'}, {'start': '33.040', 'end': '36.920', 'text': 'thermostatrmister, meaning its'}, {'start': '34.719', 'end': '39.079', 'text': 'electrical resistance varies with'}, {'start': '36.920', 'end': '42.320', 'text': 'temperature. As the temperature'}, {'start': '39.079', 'end': '45.440', 'text': 'decreases, the resistance increases. And'}, {'start': '42.320', 'end': '48.160', 'text': 'conversely, the resistance decreases as'}, {'start': '45.440', 'end': '50.960', 'text': 'temperature rises. The output voltage'}, {'start': '48.160', 'end': '54.559', 'text': 'from the IAT sensor is monitored by the'}, {'start': '50.960', 'end': '57.440', 'text': 'powertrain control module PCM. If this'}, {'start': '54.559', 'end': '60.879', 'text': 'voltage deviates from expected ranges, a'}, {'start': '57.440', 'end': '63.840', 'text': 'DTC will be triggered. Diagnosing errors'}, {'start': '60.879', 'end': '65.280', 'text': 'concerning the IAT sensor is crucial'}, {'start': '63.840', 'end': '68.159', 'text': 'because they can affect engine'}, {'start': '65.280', 'end': '70.640', 'text': 'efficiency and emissions control,'}, {'start': '68.159', 'end': '73.200', 'text': "impacting the vehicle's performance and"}, {'start': '70.640', 'end': '75.280', 'text': 'compliance with regulations. Preventive'}, {'start': '73.200', 'end': '78.360', 'text': 'maintenance plays a crucial role in'}, {'start': '75.280', 'end': '81.840', 'text': 'avoiding the triggering of DTC'}, {'start': '78.360', 'end': '85.280', 'text': 'P0111 in the future. Regular inspections'}, {'start': '81.840', 'end': '87.680', 'text': 'of the intake air temperature IAT sensor'}, {'start': '85.280', 'end': '90.799', 'text': 'can help catch potential issues before'}, {'start': '87.680', 'end': '93.040', 'text': 'they escalate into significant problems.'}, {'start': '90.799', 'end': '95.280', 'text': 'During routine vehicle checks, pay'}, {'start': '93.040', 'end': '97.920', 'text': 'attention to the sensors mounting and'}, {'start': '95.280', 'end': '100.640', 'text': 'surrounding components. Ensure that all'}, {'start': '97.920', 'end': '103.240', 'text': 'wiring and connections remain clean and'}, {'start': '100.640', 'end': '105.840', 'text': 'secure to mitigate the risks of faulty'}, {'start': '103.240', 'end': '108.320', 'text': 'readings. Additionally, keeping the air'}, {'start': '105.840', 'end': '110.880', 'text': 'intake system clean will enhance the'}, {'start': '108.320', 'end': '113.520', 'text': 'accuracy of temperature measurements.'}, {'start': '110.880', 'end': '116.320', 'text': 'Following these preventive practices can'}, {'start': '113.520', 'end': '119.600', 'text': 'extend the lifespan of the IAT sensor'}, {'start': '116.320', 'end': '122.560', 'text': 'and improve overall engine performance.'}, {'start': '119.600', 'end': '126.240', 'text': 'In conclusion, understanding the role of'}, {'start': '122.560', 'end': '129.560', 'text': 'the intake air temperature IAT sensor is'}, {'start': '126.240', 'end': '132.800', 'text': 'essential when addressing'}, {'start': '129.560', 'end': '134.520', 'text': 'DTCP0111 as this component significantly'}, {'start': '132.800', 'end': '137.200', 'text': 'impacts engine'}, {'start': '134.520', 'end': '140.239', 'text': 'performance. Recognizing the possible'}, {'start': '137.200', 'end': '143.200', 'text': 'causes and symptoms enables technicians'}, {'start': '140.239', 'end': '146.160', 'text': 'to effectively diagnose and remedy the'}, {'start': '143.200', 'end': '148.400', 'text': 'issues related to sensor malfunction and'}, {'start': '146.160', 'end': '151.200', 'text': 'PCM failures.'}, {'start': '148.400', 'end': '153.840', 'text': 'The structured troubleshooting approach'}, {'start': '151.200', 'end': '156.080', 'text': 'from verifying connections to checking'}, {'start': '153.840', 'end': '158.720', 'text': 'voltage outputs and inspecting'}, {'start': '156.080', 'end': '161.080', 'text': 'components provides a comprehensive'}, {'start': '158.720', 'end': '164.000', 'text': 'framework for addressing the'}, {'start': '161.080', 'end': '166.640', 'text': 'DTC. Additionally, engaging in'}, {'start': '164.000', 'end': '170.080', 'text': 'preventive maintenance practices ensures'}, {'start': '166.640', 'end': '173.040', 'text': 'the longevity and accuracy of the IAT'}, {'start': '170.080', 'end': '175.840', 'text': 'sensor, preventing future faults.'}, {'start': '173.040', 'end': '178.239', 'text': 'Through these strategies, both mechanics'}, {'start': '175.840', 'end': '180.680', 'text': 'and vehicle owners can contribute to'}, {'start': '178.239', 'end': '183.440', 'text': 'enhanced engine efficiency and'}, {'start': '180.680', 'end': '186.400', 'text': 'reliability. The intake air temperature'}, {'start': '183.440', 'end': '188.480', 'text': 'IAT sensor serves a vital function in'}, {'start': '186.400', 'end': '191.760', 'text': 'managing the air fuel mixture in'}, {'start': '188.480', 'end': '194.319', 'text': 'internal combustion engines. Located in'}, {'start': '191.760', 'end': '196.400', 'text': 'the intake manifold, it continuously'}, {'start': '194.319', 'end': '198.480', 'text': 'measures the temperature of the air'}, {'start': '196.400', 'end': '200.640', 'text': 'entering the engine.'}, {'start': '198.480', 'end': '204.239', 'text': 'This information is relayed to the'}, {'start': '200.640', 'end': '206.280', 'text': 'powertrain control module PCM to adjust'}, {'start': '204.239', 'end': '208.959', 'text': 'the air fuel ratio'}, {'start': '206.280', 'end': '212.239', 'text': 'accordingly. For instance, if the intake'}, {'start': '208.959', 'end': '214.879', 'text': 'air temperature is low, the IAT sensor'}, {'start': '212.239', 'end': '217.400', 'text': 'increases the resistance which results'}, {'start': '214.879', 'end': '220.720', 'text': 'in a higher voltage signal sent to the'}, {'start': '217.400', 'end': '223.760', 'text': 'PCM informing it to enrich the air fuel'}, {'start': '220.720', 'end': '226.959', 'text': 'mixture. Conversely, if the temperature'}, {'start': '223.760', 'end': '230.080', 'text': 'rises, the resistance lowers, causing'}, {'start': '226.959', 'end': '232.400', 'text': 'reduced voltage and prompting the PCM to'}, {'start': '230.080', 'end': '235.159', 'text': 'lean the mixture. Should the voltage'}, {'start': '232.400', 'end': '237.080', 'text': 'reading fall outside the set range of'}, {'start': '235.159', 'end': '240.360', 'text': '0.08 to'}, {'start': '237.080', 'end': '243.799', 'text': '0.22V for a minimum of 2 seconds during'}, {'start': '240.360', 'end': '248.360', 'text': 'operation, the PCM identifies this as a'}, {'start': '243.799', 'end': '248.360', 'text': 'malfunction, triggering DTCP011.'}, {'start': '248.560', 'end': '255.360', 'text': 'The potential causes for'}, {'start': '251.879', 'end': '258.560', 'text': 'DTCP0111 include an issue with the IAT'}, {'start': '255.360', 'end': '261.560', 'text': 'sensor itself or an internal failure'}, {'start': '258.560', 'end': '265.520', 'text': 'within the powertrain control module'}, {'start': '261.560', 'end': '267.840', 'text': 'PCM. An IAT sensor performance issue'}, {'start': '265.520', 'end': '270.560', 'text': 'might stem from physical damage,'}, {'start': '267.840', 'end': '273.280', 'text': 'corrosion, or a disconnection from its'}, {'start': '270.560', 'end': '276.120', 'text': "connector affecting the sensor's ability"}, {'start': '273.280', 'end': '279.040', 'text': 'to provide accurate readings.'}, {'start': '276.120', 'end': '282.240', 'text': 'Additionally, environmental factors such'}, {'start': '279.040', 'end': '285.199', 'text': 'as high heat or moisture may impact the'}, {'start': '282.240', 'end': '287.520', 'text': "sensor's performance. On the flip side,"}, {'start': '285.199', 'end': '290.320', 'text': 'an internal circuit failure within the'}, {'start': '287.520', 'end': '292.720', 'text': 'PCN could lead to incorrect data'}, {'start': '290.320', 'end': '295.880', 'text': 'processing, causing the module to'}, {'start': '292.720', 'end': '298.240', 'text': 'misinterpret the sensors readings. These'}, {'start': '295.880', 'end': '301.280', 'text': 'possibilities highlight the importance'}, {'start': '298.240', 'end': '303.600', 'text': 'of not only inspecting the sensor, but'}, {'start': '301.280', 'end': '307.000', 'text': 'also the wiring and connectors'}, {'start': '303.600', 'end': '309.919', 'text': 'associated with it. When'}, {'start': '307.000', 'end': '312.479', 'text': 'DTCP0111 is triggered, various symptoms'}, {'start': '309.919', 'end': '315.199', 'text': 'can manifest, alerting the driver to'}, {'start': '312.479', 'end': '317.919', 'text': 'potential engine issues. One of the most'}, {'start': '315.199', 'end': '320.560', 'text': 'common signs is a noticeable decline in'}, {'start': '317.919', 'end': '323.440', 'text': 'engine performance, which could manifest'}, {'start': '320.560', 'end': '326.560', 'text': 'as reduced acceleration or difficulty'}, {'start': '323.440', 'end': '329.919', 'text': 'starting the engine. Additionally, the'}, {'start': '326.560', 'end': '332.479', 'text': 'check engine light ML will illuminate on'}, {'start': '329.919', 'end': '335.600', 'text': 'the dashboard, indicating the need for'}, {'start': '332.479', 'end': '337.520', 'text': 'diagnostic attention. If the engine'}, {'start': '335.600', 'end': '340.479', 'text': "isn't receiving accurate temperature"}, {'start': '337.520', 'end': '342.960', 'text': 'readings, it may run lean or rich,'}, {'start': '340.479', 'end': '346.320', 'text': 'leading to poor fuel economy and'}, {'start': '342.960', 'end': '348.840', 'text': 'increased emissions as well. Drivers may'}, {'start': '346.320', 'end': '351.280', 'text': 'also experience erratic idling or'}, {'start': '348.840', 'end': '353.680', 'text': 'stalling, especially during warm-up'}, {'start': '351.280', 'end': '356.240', 'text': 'phases when the air intake temperature'}, {'start': '353.680', 'end': '358.720', 'text': 'is fluctuating. Paying attention to'}, {'start': '356.240', 'end': '361.280', 'text': 'these symptoms can help in catching the'}, {'start': '358.720', 'end': '364.319', 'text': 'issue early before it leads to more'}, {'start': '361.280', 'end': '366.759', 'text': 'severe complications. The first step in'}, {'start': '364.319', 'end': '369.600', 'text': 'troubleshooting DTCP'}, {'start': '366.759', 'end': '372.440', 'text': 'P0111 involves verifying the connection'}, {'start': '369.600', 'end': '375.199', 'text': 'to the intake air temperature IAT'}, {'start': '372.440', 'end': '377.440', 'text': 'sensor. Begin by inspecting the wiring'}, {'start': '375.199', 'end': '380.479', 'text': 'harness and connector for any signs of'}, {'start': '377.440', 'end': '383.199', 'text': 'wear, corrosion, or disconnection that'}, {'start': '380.479', 'end': '385.600', 'text': "could affect the sensor's performance. A"}, {'start': '383.199', 'end': '388.080', 'text': 'poor connection can cause intermittent'}, {'start': '385.600', 'end': '392.000', 'text': 'issues that lead to erratic voltage'}, {'start': '388.080', 'end': '394.880', 'text': 'readings, ultimately triggering the DTC.'}, {'start': '392.000', 'end': '396.960', 'text': 'If any damage or corrosion is observed,'}, {'start': '394.880', 'end': '400.319', 'text': 'the affected components should be'}, {'start': '396.960', 'end': '402.639', 'text': "repaired or replaced as necessary. It's"}, {'start': '400.319', 'end': '405.560', 'text': 'essential to ensure that all connections'}, {'start': '402.639', 'end': '408.160', 'text': 'are tight and free from debris.'}, {'start': '405.560', 'end': '410.479', 'text': 'Furthermore, confirming the integrity of'}, {'start': '408.160', 'end': '413.360', 'text': 'the wiring helps to eliminate the'}, {'start': '410.479', 'end': '416.319', 'text': 'possibility of external faults impacting'}, {'start': '413.360', 'end': '419.440', 'text': 'the system. Laying a solid foundation'}, {'start': '416.319', 'end': '421.280', 'text': 'for further diagnosis. After ensuring a'}, {'start': '419.440', 'end': '423.440', 'text': 'solid connection, the next'}, {'start': '421.280', 'end': '427.039', 'text': 'troubleshooting step involves measuring'}, {'start': '423.440', 'end': '429.759', 'text': 'the voltage output of the IAT sensor.'}, {'start': '427.039', 'end': '432.560', 'text': 'Using a multimeter, monitor the voltage'}, {'start': '429.759', 'end': '436.400', 'text': 'while the engine operates to confirm it'}, {'start': '432.560', 'end': '440.720', 'text': 'falls within the expected range of 0.08'}, {'start': '436.400', 'end': '443.919', 'text': 'to 0.22 volts. If the voltage is outside'}, {'start': '440.720', 'end': '446.479', 'text': 'this range, it indicates that the sensor'}, {'start': '443.919', 'end': '449.199', 'text': "may be malfunctioning or that there's an"}, {'start': '446.479', 'end': '451.520', 'text': "issue with the PCM's ability to"}, {'start': '449.199', 'end': '453.919', 'text': 'interpret the signal. It is essential to'}, {'start': '451.520', 'end': '456.599', 'text': 'perform this check when the engine is at'}, {'start': '453.919', 'end': '459.759', 'text': 'operating temperature to get an accurate'}, {'start': '456.599', 'end': '462.560', 'text': 'reading. If the voltage is stable yet'}, {'start': '459.759', 'end': '465.440', 'text': 'outside the normal range, the sensor is'}, {'start': '462.560', 'end': '467.680', 'text': 'likely defective and should be replaced.'}, {'start': '465.440', 'end': '470.400', 'text': 'Conversely, if the voltage reading'}, {'start': '467.680', 'end': '473.599', 'text': 'fluctuates significantly, an inspecting'}, {'start': '470.400', 'end': '476.319', 'text': 'of the PCM could be warranted as it may'}, {'start': '473.599', 'end': '480.360', 'text': 'not be processing the input correctly.'}, {'start': '476.319', 'end': '483.360', 'text': 'The third step in troubleshooting DTC'}, {'start': '480.360', 'end': '487.360', 'text': 'P0111 entails a thorough inspection of'}, {'start': '483.360', 'end': '489.759', 'text': 'the IAT sensor itself. Carefully examine'}, {'start': '487.360', 'end': '493.199', 'text': 'the sensor for any signs of physical'}, {'start': '489.759', 'end': '495.599', 'text': 'damage, such as cracks or breakage, as'}, {'start': '493.199', 'end': '498.400', 'text': 'these can impede its ability to measure'}, {'start': '495.599', 'end': '500.639', 'text': 'air temperature accurately. Remove the'}, {'start': '498.400', 'end': '503.560', 'text': 'sensor from its mounting to check for'}, {'start': '500.639', 'end': '505.919', 'text': 'any dirt or debris that may affect its'}, {'start': '503.560', 'end': '508.080', 'text': 'functionality. Cleaning the sensor may'}, {'start': '505.919', 'end': '510.120', 'text': 'restore its performance if foreign'}, {'start': '508.080', 'end': '513.039', 'text': 'elements are detected.'}, {'start': '510.120', 'end': '515.240', 'text': "Furthermore, it's crucial to evaluate"}, {'start': '513.039', 'end': '518.560', 'text': 'the thermal connection to the intake'}, {'start': '515.240', 'end': '521.039', 'text': 'manifold, ensuring that the sensor sits'}, {'start': '518.560', 'end': '524.120', 'text': 'securely and creates an efficient'}, {'start': '521.039', 'end': '526.720', 'text': 'thermal bridge. If physical integrity is'}, {'start': '524.120', 'end': '529.360', 'text': 'compromised, replacing the sensor is'}, {'start': '526.720', 'end': '531.760', 'text': 'imperative as it is instrumental for'}, {'start': '529.360', 'end': '535.240', 'text': 'effective engine management. In the'}, {'start': '531.760', 'end': '537.600', 'text': 'fourth troubleshooting step for'}, {'start': '535.240', 'end': '541.200', 'text': 'DTCP0111, the focus shifts to the'}, {'start': '537.600', 'end': '543.519', 'text': 'powertrain control module PCM. Given'}, {'start': '541.200', 'end': '547.200', 'text': 'that the PCM interprets data from the'}, {'start': '543.519', 'end': '549.680', 'text': 'IAT sensor, it is vital to verify its'}, {'start': '547.200', 'end': '552.959', 'text': 'functionality and the integrity of its'}, {'start': '549.680', 'end': '555.200', 'text': 'internal circuits. Begin by scanning for'}, {'start': '552.959', 'end': '558.720', 'text': 'additional fault codes that might'}, {'start': '555.200', 'end': '561.279', 'text': 'suggest deeper issues within the PCM. If'}, {'start': '558.720', 'end': '563.519', 'text': 'there is zero correlation with the IAT'}, {'start': '561.279', 'end': '566.959', 'text': 'sensor, this might indicate a'}, {'start': '563.519', 'end': '569.680', 'text': 'malfunction within the module itself.'}, {'start': '566.959', 'end': '572.320', 'text': "Additionally, inspect the PCM's grounds"}, {'start': '569.680', 'end': '575.160', 'text': 'and power supply voltages to confirm'}, {'start': '572.320', 'end': '578.279', 'text': 'they are stable and within specified'}, {'start': '575.160', 'end': '581.519', 'text': 'parameters. If issues within the PCM are'}, {'start': '578.279', 'end': '584.480', 'text': 'suspected, further diagnostic tests or'}, {'start': '581.519', 'end': '586.959', 'text': 'even a replacement may be necessary as'}, {'start': '584.480', 'end': '589.600', 'text': 'this component is central to overall'}, {'start': '586.959', 'end': '593.000', 'text': 'vehicle performance. To finalize the'}, {'start': '589.600', 'end': '596.640', 'text': 'diagnostic process for'}, {'start': '593.000', 'end': '599.200', 'text': 'DTCP011, it is crucial to clear the DTC'}, {'start': '596.640', 'end': '602.000', 'text': 'and conduct a test drive to ensure that'}, {'start': '599.200', 'end': '604.480', 'text': 'the issue has been resolved. After'}, {'start': '602.000', 'end': '607.440', 'text': 'making repairs or adjustments, use a'}, {'start': '604.480', 'end': '611.279', 'text': 'scan tool to clear the DTC from the'}, {'start': '607.440', 'end': '613.680', 'text': "PCM's memory. Following this, perform a"}, {'start': '611.279', 'end': '615.920', 'text': 'brief test drive under various driving'}, {'start': '613.680', 'end': '619.120', 'text': 'conditions to allow the system to'}, {'start': '615.920', 'end': '622.480', 'text': 'complete its diagnostic checks. As the'}, {'start': '619.120', 'end': '624.560', 'text': 'drive test runs, monitor the IAT sensor'}, {'start': '622.480', 'end': '627.760', 'text': 'readings to confirm that they fall'}, {'start': '624.560', 'end': '631.200', 'text': 'within the expected voltage ranges. If'}, {'start': '627.760', 'end': '634.320', 'text': 'the DTC reappears, it indicates that the'}, {'start': '631.200', 'end': '636.880', 'text': 'issues related to the sensor or PCM have'}, {'start': '634.320', 'end': '638.720', 'text': 'not been fully addressed, requiring'}, {'start': '636.880', 'end': '641.160', 'text': 'further investigation into the'}, {'start': '638.720', 'end': '643.920', 'text': 'components and their'}, {'start': '641.160', 'end': '647.760', 'text': 'operations. Please like and subscribe to'}, {'start': '643.920', 'end': '647.760', 'text': 'the channel. See you next time.'}]