DTC P0128: Cooling System Malfunction - Honda Accord 2012-2017
DIY Honda Garage
[{'start': '1.120', 'end': '7.520', 'text': 'Welcome to the DIY Honda Garage channel.'}, {'start': '4.960', 'end': '11.800', 'text': 'The subject of this presentation is the'}, {'start': '7.520', 'end': '14.679', 'text': 'diagnostic trouble code DTC'}, {'start': '11.800', 'end': '17.279', 'text': 'P0128, which indicates a cooling system'}, {'start': '14.679', 'end': '20.640', 'text': 'malfunction specifically geared towards'}, {'start': '17.279', 'end': '21.720', 'text': 'models like the Honda Accord from 2012'}, {'start': '20.640', 'end': '24.880', 'text': 'to'}, {'start': '21.720', 'end': '26.560', 'text': '2017. This error code comes into play'}, {'start': '24.880', 'end': '29.599', 'text': 'when there is an issue with the'}, {'start': '26.560', 'end': '32.239', 'text': "thermostat's functioning. The thermostat"}, {'start': '29.599', 'end': '34.960', 'text': 'plays a crucial role in regulating the'}, {'start': '32.239', 'end': '37.200', 'text': 'engine coolant flow based on temperature'}, {'start': '34.960', 'end': '39.680', 'text': 'and an abnormality can result in'}, {'start': '37.200', 'end': '42.879', 'text': 'improper engine warmth which can affect'}, {'start': '39.680', 'end': '46.000', 'text': 'performance and emissions. Understanding'}, {'start': '42.879', 'end': '48.079', 'text': 'this DTC requires diving into how the'}, {'start': '46.000', 'end': '50.879', 'text': 'engine coolant temperature affects'}, {'start': '48.079', 'end': '53.520', 'text': 'overall engine function. The following'}, {'start': '50.879', 'end': '56.719', 'text': 'slides will detail error descriptions,'}, {'start': '53.520', 'end': '59.039', 'text': 'possible causes, symptoms, and offer'}, {'start': '56.719', 'end': '61.960', 'text': 'troubleshooting steps for effective'}, {'start': '59.039', 'end': '64.879', 'text': 'remediation. The DTC'}, {'start': '61.960', 'end': '67.280', 'text': 'P0128 typically signifies a failure in'}, {'start': '64.879', 'end': '69.840', 'text': 'the cooling system, specifically linked'}, {'start': '67.280', 'end': '71.840', 'text': "to the thermostat. The thermostat's role"}, {'start': '69.840', 'end': '74.240', 'text': 'is to regulate the engine coolant'}, {'start': '71.840', 'end': '77.119', 'text': 'temperature by opening and closing at'}, {'start': '74.240', 'end': '79.280', 'text': 'designated temperatures. Location-wise,'}, {'start': '77.119', 'end': '81.520', 'text': 'the thermostat generally resides near'}, {'start': '79.280', 'end': '83.720', 'text': 'the engine block, which enables it to'}, {'start': '81.520', 'end': '86.240', 'text': 'measure the engine coolant temperature'}, {'start': '83.720', 'end': '89.920', 'text': 'effectively. The powertrain control'}, {'start': '86.240', 'end': '92.560', 'text': 'module PCM is tasked with monitoring the'}, {'start': '89.920', 'end': '95.680', 'text': 'coolant temperature by reading sensors'}, {'start': '92.560', 'end': '98.079', 'text': 'located at both the engine block and the'}, {'start': '95.680', 'end': '101.040', 'text': 'radiator. If the coolant temperature'}, {'start': '98.079', 'end': '103.759', 'text': "doesn't rise as anticipated, the PCM"}, {'start': '101.040', 'end': '106.880', 'text': 'interprets this as the thermostat being'}, {'start': '103.759', 'end': '109.520', 'text': 'stuck open. Hence, understanding the'}, {'start': '106.880', 'end': '112.320', 'text': 'components involved is critical to'}, {'start': '109.520', 'end': '114.720', 'text': 'diagnosing the malfunction accurately.'}, {'start': '112.320', 'end': '116.700', 'text': 'Several issues can contribute to the'}, {'start': '114.720', 'end': '117.960', 'text': 'occurrence of'}, {'start': '116.700', 'end': '120.960', 'text': '[Music]'}, {'start': '117.960', 'end': '124.560', 'text': 'DTCP0128. The most common culprit is a'}, {'start': '120.960', 'end': '126.799', 'text': 'failed thermostat that remains open,'}, {'start': '124.560', 'end': '130.080', 'text': 'failing to direct the engine coolant'}, {'start': '126.799', 'end': '132.959', 'text': 'properly for optimal heating. Other'}, {'start': '130.080', 'end': '137.040', 'text': 'potential causes include failure in the'}, {'start': '132.959', 'end': '140.879', 'text': 'engine coolant temperature ect sensor 1'}, {'start': '137.040', 'end': '143.520', 'text': 'or the intake air temperature IAT sensor'}, {'start': '140.879', 'end': '146.160', 'text': 'where incorrect readings can compromise'}, {'start': '143.520', 'end': '148.239', 'text': 'the function of the thermostat.'}, {'start': '146.160', 'end': '151.920', 'text': 'Additionally, malfunctions in the'}, {'start': '148.239', 'end': '155.920', 'text': 'manifold absolute pressure map sensor,'}, {'start': '151.920', 'end': '158.800', 'text': 'crankshaft position, CKP sensor, or even'}, {'start': '155.920', 'end': '161.840', 'text': 'failures in the fuel supply system may'}, {'start': '158.800', 'end': '164.879', 'text': 'affect the coolant management process,'}, {'start': '161.840', 'end': '167.720', 'text': 'causing erratic temperature regulation.'}, {'start': '164.879', 'end': '170.560', 'text': 'Lastly, issues with the exhaust gas'}, {'start': '167.720', 'end': '173.360', 'text': 'recirculation, EGR system, or the'}, {'start': '170.560', 'end': '176.080', 'text': 'radiator fan can impede cooling,'}, {'start': '173.360', 'end': '177.160', 'text': 'necessitating the steps outlined for a'}, {'start': '176.080', 'end': '179.599', 'text': 'thorough'}, {'start': '177.160', 'end': '182.440', 'text': 'diagnosis. Identifying the symptoms'}, {'start': '179.599', 'end': '185.120', 'text': 'associated with'}, {'start': '182.440', 'end': '188.720', 'text': 'DTCP0128 is critical for timely'}, {'start': '185.120', 'end': '191.280', 'text': 'resolution. Typically, a primary symptom'}, {'start': '188.720', 'end': '194.200', 'text': 'experienced by drivers is a delayed'}, {'start': '191.280', 'end': '196.640', 'text': 'engine warm-up, making the engine run'}, {'start': '194.200', 'end': '199.760', 'text': 'inefficiently and possibly leading to'}, {'start': '196.640', 'end': '202.879', 'text': 'increased wear. Due to the thermostat'}, {'start': '199.760', 'end': '206.000', 'text': 'failing, the exhaust emissions may rise'}, {'start': '202.879', 'end': '209.360', 'text': 'as unoptimized engine warmth produces'}, {'start': '206.000', 'end': '212.080', 'text': 'excess pollutants. Often drivers will'}, {'start': '209.360', 'end': '214.879', 'text': 'notice a check engine light illuminating'}, {'start': '212.080', 'end': '217.760', 'text': 'on the dashboard, signaling the need for'}, {'start': '214.879', 'end': '220.000', 'text': 'immediate attention. Additionally,'}, {'start': '217.760', 'end': '222.000', 'text': 'fluctuations in the temperature gauge'}, {'start': '220.000', 'end': '224.440', 'text': 'can indicate that the vehicle is'}, {'start': '222.000', 'end': '227.040', 'text': 'struggling to maintain an optimal'}, {'start': '224.440', 'end': '229.519', 'text': 'temperature, further emphasizing the'}, {'start': '227.040', 'end': '232.920', 'text': 'severity of this issue. The first'}, {'start': '229.519', 'end': '235.440', 'text': 'troubleshooting step for addressing'}, {'start': '232.920', 'end': '238.640', 'text': 'DTCP0128 involves starting the engine'}, {'start': '235.440', 'end': '240.480', 'text': 'under designated enable conditions. This'}, {'start': '238.640', 'end': '242.720', 'text': "includes checking that the engine's"}, {'start': '240.480', 'end': '245.760', 'text': 'coolic temperature is within the'}, {'start': '242.720', 'end': '248.680', 'text': 'specified range, which plays a crucial'}, {'start': '245.760', 'end': '251.360', 'text': "role in monitoring the thermostat's"}, {'start': '248.680', 'end': '254.159', 'text': "functionality. It's important to verify"}, {'start': '251.360', 'end': '256.799', 'text': 'initial conditions such as engine off'}, {'start': '254.159', 'end': '259.359', 'text': 'time and the temperature of the incoming'}, {'start': '256.799', 'end': '262.400', 'text': 'air. The specifics of these conditions'}, {'start': '259.359', 'end': '264.479', 'text': 'directly influence how the PCM assesses'}, {'start': '262.400', 'end': '267.360', 'text': 'the systems performance during'}, {'start': '264.479', 'end': '269.280', 'text': 'subsequent drives. Confirming these'}, {'start': '267.360', 'end': '271.520', 'text': 'factors lays the groundwork for'}, {'start': '269.280', 'end': '273.680', 'text': 'accurately diagnosing and confirming'}, {'start': '271.520', 'end': '276.199', 'text': 'whether the root of the problem is a'}, {'start': '273.680', 'end': '278.720', 'text': 'faulty thermostat or another'}, {'start': '276.199', 'end': '282.560', 'text': 'component. Next, the vehicle must be'}, {'start': '278.720', 'end': '285.759', 'text': 'driven at a speed between 15 to 75 mph'}, {'start': '282.560', 'end': '288.000', 'text': 'for at least 30 minutes. This extended'}, {'start': '285.759', 'end': '290.320', 'text': 'duration is essential to allow for'}, {'start': '288.000', 'end': '293.360', 'text': 'proper operation and data collection'}, {'start': '290.320', 'end': '295.840', 'text': 'from the engine and associated sensors.'}, {'start': '293.360', 'end': '298.080', 'text': "While driving, it's crucial to adhere"}, {'start': '295.840', 'end': '300.600', 'text': 'strictly to traffic regulations and'}, {'start': '298.080', 'end': '303.759', 'text': 'ambient conditions to ensure normal'}, {'start': '300.600', 'end': '306.000', 'text': 'operation. The PCM monitors realtime'}, {'start': '303.759', 'end': '307.680', 'text': 'data throughout this driving cycle,'}, {'start': '306.000', 'end': '309.199', 'text': 'playing a significant role in'}, {'start': '307.680', 'end': '311.520', 'text': 'determining whether the issue is'}, {'start': '309.199', 'end': '314.400', 'text': 'persistent or simply a one-off'}, {'start': '311.520', 'end': '317.160', 'text': 'occurrence. Successful completion of'}, {'start': '314.400', 'end': '319.840', 'text': "this step can indicate the thermostat's"}, {'start': '317.160', 'end': '322.560', 'text': 'functionality as any anomalies during'}, {'start': '319.840', 'end': '325.120', 'text': 'this period could lead to the DTC being'}, {'start': '322.560', 'end': '328.000', 'text': 'set after performing repairs or'}, {'start': '325.120', 'end': '330.720', 'text': 'replacements based on the diagnostics.'}, {'start': '328.000', 'end': '334.560', 'text': 'The final repair verification phase is'}, {'start': '330.720', 'end': '337.600', 'text': 'crucial. Clearing the DTC using a scan'}, {'start': '334.560', 'end': '340.639', 'text': "tool resets the vehicle's computer,"}, {'start': '337.600', 'end': '342.560', 'text': 'allowing it to rerun diagnostic checks'}, {'start': '340.639', 'end': '345.919', 'text': 'without the previous fault codes'}, {'start': '342.560', 'end': '348.160', 'text': 'clouding the results. Following this,'}, {'start': '345.919', 'end': '350.000', 'text': 'the vehicle should be driven under the'}, {'start': '348.160', 'end': '352.880', 'text': 'same conditions that previously'}, {'start': '350.000', 'end': '355.440', 'text': 'triggered the DTC, ensuring that there'}, {'start': '352.880', 'end': '358.080', 'text': 'are no recurring issues. Proper test'}, {'start': '355.440', 'end': '360.400', 'text': 'driving allows the technician to verify'}, {'start': '358.080', 'end': '362.759', 'text': 'that the thermostat or any other'}, {'start': '360.400', 'end': '365.639', 'text': 'components have been adequately'}, {'start': '362.759', 'end': '368.080', 'text': 'resolved. Also, a successful'}, {'start': '365.639', 'end': '370.720', 'text': 'verification ensures that the vehicle'}, {'start': '368.080', 'end': '373.240', 'text': 'operates within the normal parameters'}, {'start': '370.720', 'end': '376.960', 'text': 'for engine coolant temperature and'}, {'start': '373.240', 'end': '379.520', 'text': 'emissions, fostering reliability.'}, {'start': '376.960', 'end': '382.520', 'text': 'Preventive maintenance plays a critical'}, {'start': '379.520', 'end': '386.080', 'text': 'role in avoiding DTC'}, {'start': '382.520', 'end': '388.479', 'text': 'P0128 in the future. Regularly checking'}, {'start': '386.080', 'end': '391.680', 'text': "the engine's coolant level ensures that"}, {'start': '388.479', 'end': '393.199', 'text': 'the cooling system remains effective.'}, {'start': '391.680', 'end': '396.160', 'text': 'Inspecting the condition of the'}, {'start': '393.199', 'end': '398.960', 'text': 'thermostat periodically can detect any'}, {'start': '396.160', 'end': '401.479', 'text': 'early signs of failure before it leads'}, {'start': '398.960', 'end': '404.319', 'text': 'to a more significant issue.'}, {'start': '401.479', 'end': '406.960', 'text': 'Additionally, monitoring overall engine'}, {'start': '404.319', 'end': '409.600', 'text': 'performance can give early warnings of'}, {'start': '406.960', 'end': '412.319', 'text': 'system malfunctions, allowing for'}, {'start': '409.600', 'end': '414.720', 'text': 'preemptive repairs. Adopting these'}, {'start': '412.319', 'end': '417.120', 'text': 'maintenance habits will not only prolong'}, {'start': '414.720', 'end': '419.680', 'text': 'the lifespan of the vehicle, but will'}, {'start': '417.120', 'end': '423.720', 'text': 'also enhance its reliability and'}, {'start': '419.680', 'end': '426.800', 'text': 'efficiency. In conclusion,'}, {'start': '423.720', 'end': '428.440', 'text': 'DTCP0128 is a critical diagnostic code'}, {'start': '426.800', 'end': '430.840', 'text': 'that highlights cooling system'}, {'start': '428.440', 'end': '433.199', 'text': 'malfunctions primarily linked to the'}, {'start': '430.840', 'end': '436.319', 'text': 'thermostat. Understanding the importance'}, {'start': '433.199', 'end': '439.120', 'text': 'of timely identification and resolution'}, {'start': '436.319', 'end': '441.360', 'text': 'cannot be overstated. Effective'}, {'start': '439.120', 'end': '443.759', 'text': 'troubleshooting steps begin with'}, {'start': '441.360', 'end': '446.319', 'text': 'scrutinizing engine conditions and'}, {'start': '443.759', 'end': '448.400', 'text': 'driving patterns to confirm whether the'}, {'start': '446.319', 'end': '451.440', 'text': 'symptoms align with a failing'}, {'start': '448.400', 'end': '453.919', 'text': 'thermostat. Furthermore, a systematic'}, {'start': '451.440', 'end': '456.720', 'text': 'approach to verification and preventive'}, {'start': '453.919', 'end': '460.400', 'text': 'maintenance can significantly mitigate'}, {'start': '456.720', 'end': '462.639', 'text': 'against future occurrences of this DTC,'}, {'start': '460.400', 'end': '465.479', 'text': 'ensuring that your Honda Accord'}, {'start': '462.639', 'end': '468.240', 'text': 'continues to run smoothly and'}, {'start': '465.479', 'end': '471.120', 'text': 'efficiently. Being proactive not only'}, {'start': '468.240', 'end': '473.400', 'text': 'enhances vehicle performance, but also'}, {'start': '471.120', 'end': '475.840', 'text': 'supports overall'}, {'start': '473.400', 'end': '479.759', 'text': 'longevity. Please like and subscribe to'}, {'start': '475.840', 'end': '479.759', 'text': 'the channel. See you next time.'}]