P0740 Torque Converter Clutch Circuit Open Ford. Here's why.
P0740 Torque Converter Clutch Circuit Open Ford. Here's why. The transmission control module has detected a fault with the circuit that operates the torque converter clutch solenoid. the torque converter. 0 hour of labor. 2. Its job is to send the power and torque from the engine onto the transmission. ” Unlike the generic P0744 code, this is a non-electrical fault but rather a performance fault. Usually, the PCM goes through numerous checks and the reading needs to be abnormal for a specified amount of time before the light comes on. It means that the Explorer ‘s computer has detected that there is an issue with the torque converter clutch (TCC) solenoid circuit. We use cookies to give you the best possible experience on our website. Powertrain - Transmission - ISO/SAE Controlled. Refer to the Diagnostic Trouble Code Chart. Definition: Torque Converter Clutch Solenoid Circuit/Open. Does not move when put in gear. Its function is to transfer the power generated from the engine to the transmission input shaft. Now i will need to find time to lower the transmission again and put another torque converter in See more Reply Save Like Frango100 | Code P0740 BMW Description The torque converter clutch solenoid valve is activated, with the gear in D4, by the Transmission Control Module (TCM) in response to signals sent from the vehicle speed and the Engine Control Module ( ECM ). The cost of diagnosing the P0740 Ford code is 1. P0740 – Torque Converter Clutch Circuit Malfuction; P0741 – Torque Converter Clutch Circuit Performance or Stuck Off; . Does anyone know what this means? I did notice on the transmission dipstick is a little low but I wanted some input on what it is and how to fix the code. L lopp Registered Joined Nov 13, 2009 56 Posts What Does the P0740 Ford Code Mean? The torque converter clutch solenoid valve is activated, with the gear in D4, by the Transmission Control Module (TCM) in response to … The torque converter is placed between the front of the transmission and the rear of the engine. mechanical problem with the transmission or torque converter note although code p0740 is a generic code specified by the society of automotive engineers sae Torque converter clutch solenoids are commanded by the relevant control module to move the fluid and engage the clutch, creating a solid coupling. The P0740 code means that your transmission control module, the computer tasked with controlling your automatic transmission, has registered a problem with the torque converter clutch circuit. The P0740 code means that your transmission control module, the computer tasked with controlling your automatic transmission, has registered a problem with the … P0740 Ford Description. P0740 CHRYSLER Description The torque converter clutch solenoid valve is activated, with the gear in D4, by the Transmission Control Module (TCM) in response to signals sent from the vehicle speed and the Engine Control Module ( ECM ). That code means the engine speed sensor and turbine speed sensor were both reading the same RPM when the torque converter was supposed to be unlocked. If not po740 sets The torque converter is placed between the front of the transmission and the rear of the engine. Engine stalls when coming to a stop. Usually a new O-ring is P0740 CHRYSLER Description The torque converter clutch solenoid valve is activated, with the gear in D4, by the Transmission Control Module (TCM) in response to signals sent from the vehicle speed and the Engine Control Module ( ECM ). Torque Converter Clutch Circuit/Open BMW: TCC Solenoid Circuit Malfunction Buick: Torque Converter Clutch Not Engaging . What does the code mean? OBD-ii Code P0740 definition: The torque converter clutch solenoid valve is … P0740 Ford Description The torque converter clutch solenoid valve is activated, with the gear in D4, by the Transmission Control Module (TCM) in response to signals sent from the vehicle speed and the Engine Control Module (ECM). The torque converter clutch solenoid valve is activated, with the gear in D4, by the Transmission Control Module (TCM) in response to signals sent from the vehicle … The torque converter clutch solenoid is located on the transmission valve body. The valve body is located within the transmission which requires the transmission pan to be removed. P0 codes are generic regarding all makes and models and are displayed as P0XXX. Symptoms of a P0742 include: Check engine light. sitting overnight, inspect the O-ring on the snout of. P0740 JEEP Description The torque converter clutch solenoid valve is activated, with the gear in D4, by the Transmission Control Module (TCM) in response to signals sent from the vehicle speed and the Engine Control Module (ECM). Online Mechanic Tips 122K subscribers Subscribe 1. Common codes associated with a TCC conditions include: P0740 – Torque Converter Clutch Circuit Malfuction P0741 – Torque Converter Clutch Circuit Performance or … The P0740 code means that your transmission control module, the computer tasked with controlling your automatic transmission, has registered a problem with the torque converter clutch circuit. About six months ago I decided to try to tackle the issue. If not po740 sets Torque Converter Operation Test This test verifies that the torque converter clutch control system and the torque converter are operating correctly. The torque converter clutch solenoid valve is activated, with the gear in D4, by the Transmission Control Module (TCM) in response to signals sent from the vehicle speed and the Engine Control Module ( ECM ). Follow along as we discuss their severity. P0740 Honda Acura FIX - Odyssey Accord Solved Fixed - Dont Rebuild Your Transmission - 28250-P6H-024 Watch on If you have a stored trouble code P0741 for your TCC solenoid or the torque converter clutch solenoid I will show you how to activate the solenoid and tell i. 3K views 2 years ago 2003 PT Cruiser po740 video shows data to verify concern. | What Does the P0740 Acura Code Mean? The torque converter clutch solenoid valve is activated, with the gear in D4, by the Transmission Control Module (TCM) in response to signals sent from the vehicle speed and the Engine Control Module ( ECM ). Torque Converter Clutch Circuit Performance or Stuck Off. Came up with code p0740 “torque converter clutch circuit/open”. P0740 Honda Acura FIX - Odyssey Accord Solved Fixed - Dont Rebuild Your Transmission - 28250-P6H-024 Watch on A/T DTC P0740 This info applies to all models with A/T except Passport. - YouTube 0:00 / 9:40 WARNING, Do not replace the Torque Convertor Clutch Solenoid for. Lock-up operation, however, is prohibited when A/T fluid temperature is too low. A P0741 Diagnostic Trouble Code (DTC) is a specific extension of OBD II code P0. When the converter is not locking up you will notice the engine’s RPMs staying higher under load at highway speeds. input. 2003 PT Cruiser po740 video shows data to verify concern. P1744 on Some Ford Vehicles. Thanks everyone Gearspro343 (@gearspro343) Trusted Member | 54 Posts 24 9 21 Topic Tags 2001 Dodge Ram 1500 Torque Converter Clutch Solenoid Pdf Pdf . This info applies to all models with A/T except. Torque Converter Clutch Circuit … P0740 – Torque Converter Clutch Solenoid Circuit/Open Circuit Malfunction What Does the P0740 Code Mean? The P0740 trouble code indicates that … WARNING, Do not replace the Torque Convertor Clutch Solenoid for P0740 in the 62TE. P0740 (M) --- Torque Converter Clutch No RPM Drop at Lockup --- Relationship between engine and vehicle speeds indicated failure of torque convertor clutch lock-up system (TCC/PTU sol). 2015 Chrysler town and country 3. P0740. Replace the torque converter clutch solenoid Replace the torque converter or clutch Change transmission fluid and filter Repair/replace damaged wiring and connectors Repair/replace TCM or ECU Install a rebuilt or remanufactured transmission Related Codes P0740 – Torque Converter Clutch Circuit There are many other OBD-II codes involving malfunction in the torque converter clutch solenoid. Transmission shudders/shakes when coming to a stop or accelerating. I presume that the clutch material from the refurbished torque converter is worn to its limits. Transmission gets stuck in a gear. Check engine turned on. Code: P0740. | Code P0740 Ford Description The torque converter clutch solenoid valve is activated, with the gear in D4, by the Transmission Control Module (TCM) in response to signals sent from the vehicle speed and the Engine Control Module ( ECM ). Before you replace the trans for DTC P0740 (Lock-up Control System) or for delayed engagement after sitting overnight, inspect the O-ring on the snout of the torque converter. What the P0741 code means. What are the Possible Causes of the Code P0740 Honda? Low transmission fluid level. The torque converter clutch solenoid is located on the transmission valve body. ” To put it plain and simple, code p0741 triggers when an onboard computer, referred to as a control module, perceives a problem with the operation of the torque converter clutch (TCC). mechanical problem with the transmission or torque converter note although code p0740 is a generic code specified by the society of automotive engineers sae Lock-up operation, however, is prohibited when A/T fluid temperature is too low. P0700 TCM has requested PCM to run on Check engine light to alert to a fault in the automatic transmission. But on vehicles that include … The torque converter is placed between the front of the transmission and the rear of the engine. P0740 Honda Acura FIX - Odyssey Accord Solved Fixed - Dont Rebuild Your Transmission - 28250-P6H-024 Watch on po740 torque converter clutch circuit Transmissions America (John and Evan) 9. The P0740 trouble code indicates that the Powertrain Control Module (PCM) detected an abnormal reading from the torque converter clutch circuit. P0740 - Chrysler. 2001 Dodge Ram 1500 Torque Converter Clutch Solenoid Pdf Pdf . This basically means that you have a malfunction in your … If you have a stored trouble code P0741 for your TCC solenoid or the torque converter clutch solenoid I will show you how to activate the solenoid and tell i. Torque converter clutch solenoids are commanded by the relevant control module to move the fluid and engage the clutch, creating a solid coupling. Code P0740 2012 Ford Edge. If not po740 sets P0740 Torque Converter Clutch Circuit Malfunction OBD-II Trouble Code Technical Description Article by Dan Weller ASE Certified Master Technician Torque Converter Clutch Circuit Malfunction This diagnostic trouble code (DTC) is a generic OBD-II powertrain code. The P0740 code activates when the transmission control module (TCM) detects a fault in the clutch solenoid circuit of the torque converter. When the torque converter clutch solenoid valve is activated, the . If there was no other code it means there is probably a stuck solenoid, or a bad torque converter. The OEM part number is 52118500AB. Torque converter clutch solenoid valve harness is open or shorted. I got code P0740 error on my 1999 Acura TL and said that TCC Solenoid issue. Note: This code is similar to codes P0740, P0741, P0742, P0743, P2769, and P2770. P0740 BMW … P0741 is a diagnostic trouble code (DTC) for "Torque Converter Clutch Circuit Performance or Stuck Off". Set the DVOM (digital volt ohm-meter) to ohm scale, and check the circuit for resistance using the positive and negative leads on their appropriate pins. That indicates that the torque converter WAS locked. mechanical problem with the transmission or torque converter note although code p0740 is a generic code specified by the society of automotive engineers sae Code P0740 Volkswagen Description The torque converter clutch solenoid valve is activated, with the gear in D4, by the Transmission Control Module (TCM) in response to signals sent from the vehicle speed and the Engine Control Module ( ECM ). Make: Ford. Connect a tachometer … Reparaturen, die den P0740-Code beheben können, können Folgendes umfassen: Austausch des Magnetschalters der Drehmomentwandlerkupplung Austausch des Drehmomentwandlers oder der Kupplung Hinzufügen oder Ersetzen von Getriebeöl und Filter Das Antriebsstrangsteuermodul ersetzen Überholung der aktuellen Übertragung 2001 Dodge Ram 1500 Torque Converter Clutch Solenoid Pdf Pdf . Description. Check for DTCs. Description: Engine started, KOER Self-Test enabled, vehicle driven at cruise speed, and the PCM did not detect any voltage drop across the TCC solenoid circuit during the test period. If this cannot occur, the ECM, … P0740 Torque Converter Clutch Circuit Malfunction – CODE DESCRIPTION » A faulty Torque Converter Clutch (TCC) Solenoid » A damaged transmission wiring harness, loose connection or open circuit … 0:00 / 9:40 WARNING, Do not replace the Torque Convertor Clutch Solenoid for P0740 in the 62TE. Dirty transmission fluid. These include code P0740, P0742, P0743, P0744, P2769, … The torque converter clutch solenoid is located on the transmission valve body. Transmission overheats. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. In other words, your torque converter is not functioning normally, and the cause is most likely a mechanical issue of some sort. P0740 CHRYSLER Description. 1K 111K … 2001 Dodge Ram 1500 Torque Converter Clutch Solenoid Pdf Pdf . Dodge: TCC Out Of Range Eagle: A/T Torque Converter Clutch - No RPM Drop At Lockup Ford: Torque Converter Clutch Solenoid Circuit/Open GMC: TCC Solenoid Circuit Malfunction (4L60-E, 4L65-E) Honda: TCM … Diagnostic trouble code (DTC) P0740 stands for “Torque Converter Clutch Solenoid Circuit/Open Circuit Malfunction. If there is a big jump in engine speed, there is no lock-up. If this cannot occur, the ECM, PCM or TCM will set error code P0740. See more Reply Save … "P0740 HONDA Description The torque converter clutch solenoid valve is activated, with the gear in D4, by the Transmission Control Module (TCM) in response to signals sent from the vehicle speed and the Engine Control Module (ECM). Common codes associated with a TCC conditions include: P0740 – Torque Converter Clutch Circuit Malfuction P0741 – Torque Converter Clutch Circuit Performance or Stuck Off Error codes ranging from P0740-P0744 indicate a torque converter clutch circuit (TCC) that is stuck off or performing poorly. P0740 System: Powertrain (Covers functions that include engine, transmission and associated drivetrain accessories) Category: ISO/SAE (It is core DTCs and applied to most manufacturers. It is considered generic because it applies to all makes … 2003 PT Cruiser po740 video shows data to verify concern. If it’s damaged or missing, replace it and clear the DTC. | Code P0740 Ford Description The torque converter clutch solenoid valve is activated, with the gear in D4, by the Transmission Control Module (TCM) in response … | Code P0740 Ford Description The torque converter clutch solenoid valve is activated, with the gear in D4, by the Transmission Control Module (TCM) in response to signals sent from the vehicle speed and the Engine Control Module ( ECM ). The code was a P0740 (Torque Converter Clutch Solenoid Circuit/Open Circuit Malfunction). P0740 Audi Torque Converter Clutch Circuit Malfunction. Torque Converter Clutch Circuit/Open. OBD Trouble Code P0740. mechanical problem with the transmission or torque converter note although code p0740 is a generic code specified by the society of automotive engineers sae The torque converter clutch solenoid is located on the transmission valve body. 99K subscribers Subscribe 9. Usually a new O-ring is. Here's why. But on vehicles that include P0740, it indicates that the control module (PCM or TCM – Transmission Control Module) perceives an electrical fault with . If you have a stored trouble code P0741 for your TCC solenoid or the torque converter clutch solenoid I will show you how to activate the solenoid and tell if the transmission solenoid is. Ford DTC P0740. On a 2015 F150, for example, a P1744 means “Torque Converter Clutch Solenoid Circuit Performance. P0740 is one of the most common transmission trouble codes. Before you replace the trans for DTC P0740 (Lock-up. Most auto repairs shops charge between $75 and $150 per hour. P0740: Torque Converter Clutch Circuit Malfunction What are the Possible Causes of the Code P0740 Honda? Low transmission fluid level. Torque converter clutch solenoid valve circuit poor electrical connection. One of the first suggestions was changing the transmission fluid since old tranny fluid can cause the code. Description: Engine started, KOER Self-Test enabled, vehicle driven at cruise speed, and the PCM did not … | What Does the P0740 Acura Code Mean? The torque converter clutch solenoid valve is activated, with the gear in D4, by the Transmission Control Module (TCM) in response to signals sent from the vehicle speed and the Engine Control Module ( ECM ). This basically means that you have a malfunction in your … The torque converter clutch solenoid is located on the transmission valve body. L lopp Registered Joined Nov 13, 2009 56 Posts P0740 CHRYSLER Description The torque converter clutch solenoid valve is activated, with the gear in D4, by the Transmission Control Module (TCM) in response to signals sent from the vehicle speed and the Engine Control Module ( ECM ). Lower MPG. 6L Code stored (came back after clearing code) P0740 torque converter clutch circuit. Well, the definition of this code is “P0740 Torque Converter Clutch Circuit Open” or “P0740 Torque Converter Clutch Circuit Malfunction”. P0741 code definition. Carry out Quick Test. P0740 Acura Code - Transmission Lock-Up Control System Fault. ) Component: Transmission Definition: Acura: Automatic Transaxle Lockup Clutch System Malfunction Audi: When the converter is not locking up you will notice the engine’s RPMs staying higher under load at highway speeds. RELATED CODES Torque Converter Clutch Circuit Malfunction This diagnostic trouble code (DTC) is a generic OBD-II powertrain code. Lock-up piston operation will then be controlled. Code P0740 Possible Causes Low transmission fluid level Dirty transmission fluid Faulty torque converter clutch solenoid valve Torque converter clutch solenoid valve harness is open or shorted Torque converter clutch solenoid valve circuit poor electrical connection How do I Fix the Code P0740? Check the "Possible Causes" listed above. ” Take note that many vehicles don’t even list this as a possible code. Diagnostic trouble code (DTC) P0740 stands for “Torque Converter Clutch Solenoid Circuit/Open Circuit Malfunction. If you have a stored trouble code P0741 for your TCC solenoid or the torque converter clutch solenoid I will show you how to activate the solenoid and tell i. Further explanation: There is a torque converter between the automatic transmission and the engine. input RPM must match engine RPM with torque converter clutch applied. Can I buy this torque Converter Clutch Solenoid electrical circuit to fix this error or it the transmission need to rework? Please kindly advise Posted by doan_ngo on Apr 08, 2013 1 Answer Marvin Cars & Trucks Master 85,240 Answers. I never thought much of it because the van drove and shifted fine … What Does the P0740 Ford Code Mean? The torque converter clutch solenoid valve is activated, with the gear in D4, by the Transmission Control Module (TCM) in response to signals sent from the vehicle speed and the Engine Control Module ( ECM ). The torque converter is placed between the front of the transmission and the rear of the engine. . Erratic, delayed or harsh shifts. This basically means that you have a malfunction in your TCC solenoid. Check the continuity inside the internal wiring harness of the transmission by locating the right + and – pins for the torque converter clutch solenoid. P0740 Ford Description. Another symptom of a failed TCC solenoid is a fault code. - Answered by a verified Ford Mechanic. A common fault message is assigned to this code. 1. The Powertrain Control Module (PCM) will set the P0741 diagnostic trouble code when it notices a difference between the rotational speed of the torque converter and the transmission input shaft that is greater than 200 revolutions per … Well, the definition of this code is “P0740 Torque Converter Clutch Circuit Open” or “P0740 Torque Converter Clutch Circuit Malfunction”. I never thought much of it because the van drove and shifted fine and the mpg were in range. Reparaturen, die den P0740-Code beheben können, können Folgendes umfassen: Austausch des Magnetschalters der Drehmomentwandlerkupplung Austausch des Drehmomentwandlers oder der Kupplung Hinzufügen oder Ersetzen von Getriebeöl und Filter Das Antriebsstrangsteuermodul ersetzen Überholung der aktuellen Übertragung The P0740 code activates when the transmission control module (TCM) detects a fault in the clutch solenoid circuit of the torque converter. The torque converter clutch solenoid valve is activated, with the gear in D4, by the Transmission Control Module (TCM) in response to signals sent from the vehicle speed and the Engine Control Module (ECM). P0744 – Torque Converter Clutch Circuit Intermittent; P01870 – Component Slipping; … What Does The P0740 Code Mean? The P0740 code activates when the transmission control module (TCM) detects a fault in the clutch solenoid circuit of the torque converter. P0740 System: Powertrain (Covers functions that include engine, transmission and associated drivetrain accessories) Category: ISO/SAE (It is core DTCs and applied to most manufacturers. P0740 Acura Transmission Lock-Up Control System Fault. It's not that it's slipping, the TCC solenoid is not working or there is a problem in the wiring & the TCC solenoid is not getting the signal. mechanical problem with the transmission or torque converter note although code p0740 is a generic code specified by the society of automotive engineers sae P0740 Torque Converter Clutch Circuit Malfunction – CODE DESCRIPTION » A faulty Torque Converter Clutch (TCC) Solenoid » A damaged transmission wiring harness, loose connection or open circuit in the system » A problem in the Transmission Control Module (TCM) or Powertrain Control Module (PCM), depending on the vehicle. When the accelerator pedal is depressed (less than 2/8) in lock-up condition, the engine speed should not change abruptly. Torque Converter Clutch Circuit/Open What does OBD-II fault code P0740 mean? OBD-II Code P0740 is defined as a Torque Converter Lockup Malfunction Driving with this … Replace the torque converter clutch solenoid Replace the torque converter or clutch Change transmission fluid and filter Repair/replace damaged wiring and connectors Repair/replace TCM or ECU Install a rebuilt or remanufactured transmission Related Codes P0740 – Torque Converter Clutch Circuit Diagnostic trouble code (DTC) P0741 stands for “Torque Converter Clutch Solenoid Circuit Performance/Stuck Off. Passport. What Does the P0740 Honda Code Mean? The torque converter clutch solenoid valve is activated, with the gear in D4, by the Transmission Control Module (TCM) in response to signals sent from the vehicle speed and the Engine Control Module ( ECM ). mechanical problem with the transmission or torque converter note although code p0740 is a generic code specified by the society of automotive engineers sae The code was a P0740 (Torque Converter Clutch Solenoid Circuit/Open Circuit Malfunction). Refer to the On-Board Diagnostics With Diagnostic Tool in this section. Reparaturen, die den P0740-Code beheben können, können Folgendes umfassen: Austausch des Magnetschalters der Drehmomentwandlerkupplung Austausch des Drehmomentwandlers oder der Kupplung Hinzufügen oder Ersetzen von Getriebeöl und Filter Das Antriebsstrangsteuermodul ersetzen Überholung der aktuellen Übertragung - Torque converter clutch solenoid valve circuit is open or shorted When is the code detected?Diagnostic trouble code P0740 is detected when TCM detects an improper voltage drop when it tries to operate the solenoid valve. Control System) or for delayed engagement after. | Code P0740 Volkswagen Description The torque converter clutch solenoid valve is activated, with the gear in D4, by the Transmission Control Module (TCM) in response to signals sent from the vehicle speed and the Engine Control Module ( ECM ). | Code P0740 Chrysler Description The torque converter clutch solenoid valve is activated, with the gear in D4, by the Transmission Control Module (TCM) in response to signals sent from the vehicle speed and the Engine Control Module ( ECM ). This code may be set with similar codes in the range of P0741 to P0744, P2769 or P2770. Drove a bit more than 100K km on it, which seems quite low. po740 torque converter clutch circuit Transmissions America (John and Evan) 9. Vehicle won’t move when in gear. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. P0740 Ford Description The torque converter clutch solenoid valve is activated, with the gear in D4, by the Transmission Control Module (TCM) in response to signals sent from the vehicle speed and the Engine Control Module (ECM). If not po740 sets P0740 Ford Torque Converter Clutch Circuit Malfunction Possible causes – Low transmission fluid level – Dirty transmission fluid – Faulty torque converter clutch … OBD II fault code P0742 is a generic code that is defined as “Torque Converter Clutch Circuit Stuck On”, and is set when the PCM (Powertrain Control Module) or TCM (Transmission Control Module) detects a defect, failure, or malfunction that causes the torque converter lock up clutch to remain engaged. p0740 code torque converter clutch solenoid circuit open . Type. Torque converter clutch solenoid valve circuit poor electrical connection P0826 means there is an issue with a circuit for the up and down switch, usually due to a disabled manual shifter or TCM placed in Limo-in mode. Faulty torque converter clutch solenoid valve. ) Component: Transmission Definition: Acura: Automatic Transaxle Lockup Clutch System Malfunction Audi: | Code P0740 Ford Description The torque converter clutch solenoid valve is activated, with the gear in D4, by the Transmission Control Module (TCM) in response to signals sent from the vehicle speed and the Engine Control Module ( ECM ). Please open the attachment. The third numeral in the code . Common codes associated with a TCC conditions include: P0740 – Torque Converter Clutch Circuit Malfuction P0741 – Torque Converter Clutch Circuit Performance or Stuck Off That code means the engine speed sensor and turbine speed sensor were both reading the same RPM when the torque converter was supposed to be unlocked. P0740 Torque Converter Clutch Circuit Malfunction OBD-II Trouble Code Technical Description Article by Dan Weller ASE Certified Master Technician Torque Converter Clutch Circuit Malfunction This diagnostic trouble code (DTC) is a generic OBD-II powertrain code. OBD II fault code P0743 is a generic code that is defined as “Torque converter clutch (TCC) solenoid –electrical”, and is set when the PCM (Powertrain Control Module) detects an abnormal voltage in the … Code P0740 Information for Specific Makes. The image is the torque converter clutch solenoid / overdrive solenoid assembly. Unfortunately the P0740 still pops up now and then. - Torque converter clutch solenoid valve circuit is open or shorted When is the code detected?Diagnostic trouble code P0740 is detected when TCM detects an improper voltage drop when it tries to operate the solenoid valve. It's not that it's slipping, the TCC solenoid is not working or there is a problem in the wiring & the TCC solenoid is not getting the signal. OBD II fault code P0743 is a generic code that is defined as “Torque converter clutch (TCC) solenoid –electrical”, and is set when the PCM (Powertrain Control Module) detects an abnormal voltage in the electrical control circuit of the TTC ( T orque C onverter C lutch) solenoid. The torque clutch prevents lockup at high speeds, and the solenoid for that clutch controls the fluid pressure of the clutch and causes it to open and close at the right .