OBD Codes

P0890

TCM Gate Select Solenoid Circuit

Moderatetransmission

Overview

The P0890 diagnostic trouble code signals a tcm gate select solenoid circuit 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

  • Check Engine Light (MIL) illuminated
  • Transmission overheating warning
  • Harsh or delayed shifting
  • Loss of one or more gears

Common Causes

  • Wiring issues in the transmission harness
  • Low or contaminated transmission fluid
  • Faulty transmission control module (TCM)
  • Worn transmission bands or clutch plates

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

Ram 1500Nissan RogueFord F-150Jeep Grand Cherokee

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.