P0335 – OBD-II DTC

OBD-II DTC P0335 – Knock Sensor 2 Circuit Intermittent (Bank 2)

DTC P0335 meaning

DTC P0335 refers to a diagnostic trouble code indicating an intermittent issue with the Knock Sensor 2 circuit on Bank 2 of the engine. The knock sensor is responsible for detecting engine knock or pinging, which can indicate improper combustion. When the Engine Control Module (ECM) detects a problem with the circuit, it triggers this code to alert the technician of the issue.

DTC P0335 symptoms

Common symptoms associated with DTC P0335 may include:

• Check Engine Light illuminated
• Decreased engine performance
• Increased fuel consumption
• Engine knocking or pinging sounds
• Rough idling or stalling

DTC P0335 causes

Several factors can lead to the triggering of DTC P0335, including:

• Faulty knock sensor
• Wiring issues, such as frayed or damaged wires
• Corroded connectors in the knock sensor circuit
• Faulty Engine Control Module (ECM)
• Improper engine timing or mechanical issues

DTC P0335 seriousness

The seriousness of DTC P0335 can vary. While it may not cause immediate engine failure, it can lead to long-term engine damage if left unaddressed. Ignoring this code can result in poor engine performance, increased emissions, and potential damage to engine components due to knocking. It is advisable to diagnose and repair the issue promptly.

How to diagnose DTC P0335

To diagnose DTC P0335, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the P0335 code.
2. Inspect the knock sensor and its wiring for any visible damage or corrosion.
3. Check the electrical connections to ensure they are secure and free of debris.
4. Test the knock sensor’s resistance using a multimeter to ensure it is within specifications.
5. Inspect the ECM for any faults or updates that may be necessary.
6. Clear the code and take the vehicle for a test drive to see if the code reappears.

How to fix DTC P0335 step-by-step instructions

To fix DTC P0335, follow these step-by-step instructions:

1. Disconnect the negative battery terminal to ensure safety.
2. Locate the knock sensor on Bank 2 and inspect it for damage.
3. If the sensor is faulty, replace it with a new one.
4. Check the wiring harness for any signs of wear or damage and repair as necessary.
5. Reconnect any corroded or loose connectors to ensure a solid connection.
6. Reconnect the negative battery terminal.
7. Use an OBD-II scanner to clear the DTC and perform a test drive to verify the repair.

How to erase DTC P0335

To erase DTC P0335, follow these steps:

1. Connect an OBD-II scanner to the vehicle’s diagnostic port.
2. Turn on the ignition without starting the engine.
3. Navigate to the “Erase Codes” or “Clear Codes” option on the scanner.
4. Confirm the action to clear the trouble codes.
5. Disconnect the scanner and start the engine to ensure the code does not return.

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