How do I fix code P0743?

What Repairs Will Fix P0743?

1. Replace the torque converter clutch solenoid.
2. Replace the torque converter or clutch.
3. Change transmission fluid and filter.
4. Repair/replace damaged wiring and connectors.
5. Repair/replace TCM or ECU.
6. Install a remanufactured or rebuilt transmission.

What causes a P0743 code?

Error Code P0743 is defined as Torque Converter Clutch (TCC) Solenoid Circuit Electrical. This means the PCM (powertrain control module, also known as ECM or engine control module in other vehicle makes) is seeing a fault in the TCC, which is contained inside the transmission.

What is a torque converter clutch circuit electrical?

The torque converter clutch is a mechanism that creates a connection between the transmission and the engine. It is important in increasing the efficiency of the transmission at highway speeds, improving fuel mileage, managing transmission fluid temperatures, and reducing vehicle emissions.

What is a torque converter clutch solenoid circuit?

The (TCC) torque converter clutch creates a one-to-one connection between the engine and the transmission that increases fuel mileage and reduces transmission fluid temperatures. The solenoid moves a valve that sends pressurized fluid to the clutch circuit, engaging the TCC. …

Can I drive with a bad solenoid?

Can You Drive It? The short answer is that, yes, you can usually drive a car with a bad shift solenoid. Granted, it might not shift past a particular gear, but you should be able to drive it for a short period of time without causing any serious damage.

What is code P0734 mean?

A P0734 trouble code indicates that an abnormality has been detected in the gear ration of one of the automatic transmissions gears, causing the storage of a code in the Powertrain Control Module (PCM) and illumination of the Check Engine Light.

What is code P0744 mean?

Torque Converter Clutch Circuit Intermittent
P0744 is a diagnostic trouble code (DTC) for “Torque Converter Clutch Circuit Intermittent”. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation.

How much does it cost to fix a solenoid?

Depending on the make and model of your vehicle, expect to pay between $15 – $100 for a single transmission shift solenoid….Transmission Solenoid Replacement Cost – Parts & Labor.

What are the signs of a bad transmission solenoid?

What Are the Warning Signs of Failing Solenoids?

• Delayed or Erratic Gear Shifting. If you notice it taking a bit longer for your car to shift gears, it could be a failing solenoid.
• You Can’t Downshift and/or Your Car Revs When Braking.
• Your Transmission Gets Stuck in Neutral.
• Your Check Engine Light Comes On.

What does the code p0743 mean on a Dodge?

This is an electrical problem code. Could be a problem to the harness to the Torque Converter Clutch (TCC) solenoid, the TCC solenoid connector or the TCC solenoid it self. What does this mean? The cost of diagnosing the P0743 DODGE code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city.

What causes a torque converter error code p0743?

There are many factors that may lead to the occurrence of Error Code P0743, which include: Dirty or low transmission fluid. Failed TCC solenoid. Failed TCC assembly in torque converter. Short or ground problem in circuits or wires.

What is the PCM error code p0743?

In the case of Error Code P0743, the PCM is reading higher than 200RPM difference between the rotational speed Torque Converter and the Transmission Input Shaft. When the Torque Converter Lockup Clutch engages, the ratio between the converter RPM and Input shaft RPM must be 1:1.

When to use lock up on Nissan p0744?

Lock-up operation, however, is prohibited when A/T fluid temperature is too low. When the accelerator pedal is depressed (less than 2/8) in lock-up condition, the engine speed should not change abruptly. If there is a big jump in engine speed, there is no lock-up.