OBD Guide

P2806

Transmission Range Sensor Alignment

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Incorrect display of the current gear on the instrument panel
  • Problems starting the engine (the car may not start)
  • Transmission shifts incorrectly or does not shift
  • Check Engine Light Is On

Causes

  • Mechanical offset of the gear range sensor
  • Electrical connection problems (oxidation, broken wires)
  • Malfunction of the TRS sensor itself
  • Transmission control module (TCM) problems
  • Incorrect installation of the sensor after repair

How to Fix

  1. Check the mechanical position of the sensor and adjust if necessary
  2. Inspect electrical connections and wiring harness for damage
  3. Check the resistance and signals of the sensor using a multimeter
  4. If necessary, replace the gear range sensor
  5. Calibrate the sensor using diagnostic equipment

Related codes

Error P2806 by Vehicle Brand