P1795 – OBD-II DTC

OBD-II DTC P1795 – TP (Mechanical) Circuit Malfunction

DTC P1795 meaning

DTC P1795 refers to a “TP (Mechanical) Circuit Malfunction.” This diagnostic trouble code indicates that there is an issue with the throttle position (TP) sensor circuit, which is responsible for monitoring the position of the throttle plate in the engine. The Engine Control Module (ECM) uses this information to adjust fuel delivery and ignition timing for optimal engine performance. A malfunction in this circuit can lead to poor engine performance and increased emissions.

DTC P1795 symptoms

Common symptoms associated with DTC P1795 may include:

• Check Engine Light (CEL) illuminated
• Unresponsive throttle or delayed throttle response
• Engine stalling or rough idling
• Reduced engine power or acceleration
• Increased fuel consumption

DTC P1795 causes

Several factors can contribute to the occurrence of DTC P1795, including:

• Faulty throttle position sensor
• Wiring issues, such as shorts or open circuits in the TP sensor circuit
• Corroded or loose electrical connectors
• Faulty Engine Control Module (ECM)
• Mechanical issues with the throttle body or linkage

DTC P1795 seriousness

DTC P1795 is considered a serious issue as it can significantly affect engine performance and drivability. If left unaddressed, it may lead to further engine damage, increased emissions, and potential safety hazards while driving. It is advisable to diagnose and repair the issue promptly to ensure safe and efficient vehicle operation.

How to diagnose DTC P1795

To diagnose DTC P1795, follow these steps:

1. Use an OBD-II scanner to confirm the presence of DTC P1795.
2. Inspect the throttle position sensor and its wiring for any visible damage or corrosion.
3. Check the electrical connectors for secure connections and signs of wear.
4. Test the throttle position sensor using a multimeter to ensure it is functioning within specifications.
5. Examine the throttle body for any mechanical issues, such as sticking or binding.
6. Clear the DTC and perform a road test to see if the code reappears.

How to fix DTC P1795 step-by-step instructions

To fix DTC P1795, follow these steps:

1. Identify and repair any damaged wiring or connectors related to the throttle position sensor.
2. If the throttle position sensor is faulty, replace it with a new one.
3. Clean the throttle body and ensure it operates smoothly without any obstructions.
4. Reconnect all electrical connectors securely.
5. Clear the DTC using an OBD-II scanner.
6. Perform a road test to verify that the issue has been resolved and the DTC does not reappear.

How to erase DTC P1795

To erase DTC P1795, follow these steps:

1. Connect an OBD-II scanner to the vehicle’s diagnostic port.
2. Turn the ignition key to the “On” position without starting the engine.
3. Access the scanner’s menu and select the option to clear or erase trouble codes.
4. Confirm the action and wait for the scanner to complete the process.
5. Disconnect the scanner and start the engine to ensure the Check Engine Light is off.

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