2004 Ford F-150 P0705 Transmission Range Sensor

2004 Ford F-150


  • 4.6L Triton V8 Engine
  • Horsepower: Approximately 231 hp
  • Torque: Approximately 293 lb-ft


  • 4-speed automatic transmission

Fuel Economy:

  • The EPA estimated fuel economy is around 14-15 MPG city and 18-19 MPG highway for RWD, and slightly lower for 4WD.

For owners of the 2004 Ford F-150 with the 4.6L engine facing the diagnostic Trouble Code (DTC) P0705, understanding the issue is crucial for maintaining optimal vehicle performance. This article aims to provide a comprehensive insight into the P0705 code, its implications, and steps for addressing it effectively. The P0705 code links to the Transmission Range Sensor Circuit Malfunction (PRNDL Input), a crucial component in ensuring proper transmission operation.

Understanding the P0705 Code:

The P0705 is a Diagnostic Code that activates when the Transmission Control Module detects a malfunction within the transmission range sensor circuit. This sensor is responsible for sending signals to the TCM to indicate the selected gear position.


Possible Causes of P0705 on a 2004 Ford F-150:

  • Faulty Transmission Range Sensor: A malfunctioning transmission range sensor can result in incorrect gear position signals, leading to the P0705 code.
Ford Transmission Range Sensor

A vehicle’s transmission range sensor plays a crucial role in the proper operation of an automatic transmission. Positioned on the transmission, this sensor detects and relays the selected gear position to the Transmission Control Module.

  • Wiring or Connector Issues: Damaged wiring or loose connectors within the transmission range sensor circuit can disrupt signal transmission and trigger the code.
  • Misaligned or Maladjusted TRS: A misaligned or improperly adjusted transmission range sensor can result in inaccurate gear position readings.

Diagnosis and Resolution Steps for P0705:

  1. Visual Inspection: Begin by visually inspecting the wiring, connectors, and components related to the transmission range sensor circuit for any visible damage, corrosion, or loose connections.
  2. Check TRS Functionality: Test the TRS’s operation and resistance using appropriate diagnostic tools. Replace the sensor if it’s found to be faulty.
  3. Alignment and Adjustment: Ensure that the transmission range sensor is correctly aligned and adjusted according to manufacturer specifications.
  4. Diagnostic Scan: Utilize a professional diagnostic scanner to retrieve specific data related to the P0705 issue. This data can help pinpoint the exact source of the problem.
  5. Clear Codes and Test: After addressing the issue, use the diagnostic tool to clear the P0705 code. Take your Ford F-150 for a test drive to ensure the code doesn’t reappear and that the performance remains optimal.

The P0705 code related to the Transmission Range Sensor on a 2004 Ford F-150 points to a problem within the gear position detection system. Swift diagnosis and resolution are essential for maintaining proper transmission operation. While you can perform some initial troubleshooting, we recommend seeking assistance from a professional Ford mechanic for diagnostics and repairs. Prompt attention to engine codes can contribute to an efficient driving experience in your Ford F-150 for years to come.

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