OBD Codes

P0707

Transmission Range Sensor Circuit Low Input

Moderatetransmission

Overview

The P0707 diagnostic trouble code signals a transmission range sensor circuit low input condition detected by the transmission control module. This code relates to the automatic transmission system and may affect shift quality, timing, or overall transmission performance. Prompt attention is important to prevent further transmission damage.

Symptoms

  • Unusual whining or grinding noise from transmission
  • Vehicle stuck in one gear (limp mode)
  • Transmission overheating warning
  • Transmission slipping between gears

Common Causes

  • Low or contaminated transmission fluid
  • Faulty shift solenoid or solenoid pack
  • Wiring issues in the transmission harness
  • Faulty input or output speed sensor

Diagnosis Steps

  1. 1Connect an OBD-II scanner and read all stored trouble codes and freeze frame data
  2. 2Check transmission fluid level and condition; top off or replace if needed
  3. 3Test the transmission speed sensors with a multimeter or scan tool
  4. 4Inspect wiring and connectors for the transmission harness
  5. 5Perform a transmission pressure test if accessible

Estimated Repair Cost

$300$2,500

Cost varies by vehicle, location, and repair shop. Includes parts and labor.

Commonly Affected Vehicles

Hyundai Santa FeGMC SierraFord F-150Chevrolet Silverado

Related Codes

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Frequently Asked Questions

Driving with a transmission code is risky. Continued driving can cause further damage to the transmission, resulting in significantly higher repair costs. Have it inspected as soon as possible.