The Volkswagen P1335 code is a generic diagnostic trouble code (DTC) indicating a problem with the Engine Torque Monitoring 2 Control Limit Exceeded. The code shows that the ECM has detected signals beyond the required limit, usually when the engine is cold, the battery voltage is at least 11.5v, and all electrical components are off. This code has several potential causes, ranging from a faulty Engine Control Module (ECM) to a faulty Intake Air Temperature (IAT) sensor. Knowing this code’s possible causes and solutions is key to understanding and resolving the issue.
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Causes and Solutions for Volkswagen P1335 Code
| Cause | Solution |
|---|---|
| Engine Control Module (ECM) has failed | Replace the ECM with a new one. |
| The voltage supply for the Engine Control Module (ECM) is shorted | Check the voltage supply for the ECM and replace any damaged cables. |
| Engine Coolant Temperature (ECT) sensor is faulty | Replace the ECT sensor with a new one. |
| The Intake Air Temperature (IAT) sensor is faulty | Replace the IAT sensor with a new one. |
Having a Volkswagen P1335 code pop up can be a stressful experience, especially if the source of the problem is not immediately obvious. Fortunately, with some research and knowledge, narrowing down the potential causes and identifying the most likely source of the issue is possible. In some cases, the cause of the code can be as simple as a faulty sensor, and in other cases, it may involve replacing the Engine Control Module (ECM). Understanding the possible causes and solutions for the Volkswagen P1335 code is key to resolving the issue and getting your vehicle back on the road.
Engine Control Module (ECM) Has Failed
When the Engine Control Module (ECM) has failed, it can cause a Volkswagen P1335 code to appear. This is because the ECM cannot monitor engine torque properly, resulting in signals sent to the ECM that are beyond the required limit. In this case, the only solution is to replace the ECM with a new one.
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Voltage Supply for the Engine Control Module (ECM) Is Shorted
When the voltage supply for the ECM is shorted, it can also cause the Volkswagen P1335 code to appear. In this case, the solution is to check the voltage supply for the ECM and replace any damaged cables. This should resolve the issue and allow the ECM to monitor engine torque properly.
Engine Coolant Temperature (ECT) Sensor Is Faulty
The Engine Coolant Temperature (ECT) sensor monitors the temperature of the engine’s coolant. If the sensor is faulty, it can cause the Volkswagen P1335 code to appear. In this case, the only solution is to replace the ECT sensor with a new one.
Intake Air Temperature (IAT) Sensor Is Faulty
The Intake Air Temperature (IAT) sensor monitors the temperature of the air entering the engine. If the sensor is faulty, it can cause the Volkswagen P1335 code to appear. In this case, the only solution is to replace the IAT sensor with a new one.
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Conclusion
The Volkswagen P1335 code is a generic diagnostic trouble code (DTC) indicating a problem with the Engine Torque Monitoring 2 Control Limit Exceeded. Knowing this code’s potential causes and solutions is key to understanding and resolving the issue. In some cases, the cause of the code can be as simple as a faulty sensor, and in other cases, it may involve replacing the Engine Control Module (ECM). Regardless, a thorough understanding of the Volkswagen P1335 Code can help ensure any issues are resolved promptly.