OBD Codes

P0725

Engine Speed Input Circuit Malfunction

Severetransmission

Overview

The P0725 diagnostic trouble code signals a engine speed input circuit malfunction 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

  • Transmission overheating warning
  • Check Engine Light (MIL) illuminated
  • Harsh or delayed shifting
  • Vehicle stuck in one gear (limp mode)

Common Causes

  • Failed torque converter
  • Worn or damaged internal transmission components
  • Faulty input or output speed sensor
  • Faulty shift solenoid or solenoid pack

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

Honda AccordHyundai Santa FeRam 1500Ford Explorer

Related Codes

More Transmission Codes

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.