Regarding Volkswagen Code P1335, it is a common engine failure seen in many Volkswagen models. It is a problem that can be fixed. The issue is usually caused by a faulty Engine Control Module (ECM), Voltage supply for the ECM, Engine Coolant Temperature (ECT) sensor, Intake Air Temperature (IAT) sensor, Intake Manifold Runner Position Sensor, Intake system for leaks (false air) or a Motor for the intake flap being faulty. It is described as engine cold, battery voltage at least 11.5v, all electrical components off, and ground connections between engine and chassis well connected. The ECM detected a signal beyond the required limit. The related Service Bulletins can be found within the article.
💥See also: Volkswagen Code P12A2
Causes and Solutions for Volkswagen Code P1335
| Cause | Solution |
|---|---|
| Engine Control Module (ECM) has failed | Replace ECM |
| The voltage supply for the Engine Control Module (ECM) is shorted | Check wiring and connections |
| Engine Coolant Temperature (ECT) sensor is faulty | Replace ECT sensor |
| The Intake Air Temperature (IAT) sensor is faulty | Replace IAT sensor |
| The Intake Manifold Runner Position Sensor is faulty | Replace IMRPS sensor |
| The intake system for leaks (false air) is faulty | Check for any leaks in the intake system |
| The motor for the intake flap is faulty | Replace the engine for the intake flap |
| The Mass Air Flow (MAF) sensor is faulty | Replace MAF sensor |
Volkswagen Code P1335 is an engine failure code that can be seen in many Volkswagen models. It is an issue that can be addressed and fixed. However, it is important to identify and understand the causes of the problem. The code is described as engine cold, battery voltage at least 11.5v, all electrical components off, and ground connections between engine and chassis well connected. The ECM detected a signal beyond the required limit. The causes of the problem often include a faulty Engine Control Module (ECM), Voltage supply for the ECM, Engine Coolant Temperature (ECT) sensor, Intake Air Temperature (IAT) sensor, Intake Manifold Runner Position Sensor, Intake system for leaks (false air) or a Motor for the intake flap being faulty. If these components are not functioning properly, the Volkswagen Code P1335 will be triggered. Related Service Bulletins can be found within the article.
Engine Control Module (ECM) Fault
If the ECM has failed, the Volkswagen Code P1335 will be triggered. This can be diagnosed by checking the engine control module for any signs of damage or malfunction. If the ECM is faulty, it must be replaced to fix the problem.
The voltage supply for the Engine Control Module (ECM) is shorted
If the voltage supply for the ECM is shorted, it can lead to the Volkswagen Code P1335 being triggered. This can be diagnosed by checking the wiring and connections between the ECM and the battery. If any issues are found, they must be addressed to fix the problem.
Engine Coolant Temperature (ECT) Sensor Fault
If the ECT sensor is faulty, the Volkswagen Code P1335 will be triggered. This can be diagnosed by checking the sensor for any signs of damage or malfunction. If the ECT sensor is faulty, it must be replaced to fix the problem.
The Intake Air Temperature (IAT) Sensor Fault
If the IAT sensor is faulty, the Volkswagen Code P1335 will be triggered. This can be diagnosed by checking the sensor for any signs of damage or malfunction. If the IAT sensor is faulty, it must be replaced to fix the problem.
The Intake Manifold Runner Position Sensor Fault
If the IMRPS sensor is faulty, the Volkswagen Code P1335 will be triggered. This can be diagnosed by checking the sensor for any signs of damage or malfunction. If the IMRPS sensor is found to be faulty, it must be replaced to fix the problem.
Intake System for Leaks (false air) Fault
If the intake system for leaks (false air) is faulty, the Volkswagen Code P1335 will be triggered. This can be diagnosed by checking the intake system for any signs of damage or malfunction. If any issues are found, they must be addressed to fix the problem.
📢Read also: Volkswagen Code P1612
Motor for intake Flap Fault
If the motor for the intake flap is faulty, the Volkswagen Code P1335 will be triggered. This can be diagnosed by checking the motor for any damage or malfunction. If the engine is defective, it must be replaced to fix the problem.
Mass Air Flow (MAF) Sensor Fault
If the MAF sensor is faulty, the Volkswagen Code P1335 will be triggered. This can be diagnosed by checking the sensor for any signs of damage or malfunction. If the MAF sensor is faulty, it must be replaced to fix the problem.
Conclusion
Volkswagen Code P1335 can be caused by a variety of issues, including a faulty Engine Control Module (ECM), Voltage supply for the ECM, Engine Coolant Temperature (ECT) sensor, Intake Air Temperature (IAT) sensor, Intake Manifold Runner Position Sensor, Intake system for leaks (false air) or a Motor for the intake flap being faulty. To fix the problem, the defective component must be identified and replaced. The related Service Bulletins can be found within the article. By following the abovementioned solutions, Volkswagen owners can address and fix the Volkswagen Code P1335 issue.
Was this page helpful?