OBD Guide

P2800

Transmission Range Sensor B Circuit (PRNDL Input)

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

Symptoms

  • Incorrect display of selector position on the dashboard
  • Gear shifting problems
  • Check Engine light comes on
  • The car may not start in some selector positions
  • The gearbox may go into emergency mode

Causes

  • Open or short circuit in the sensor circuit
  • Gear range sensor malfunction
  • Oxidized or damaged connectors
  • Low transmission fluid level
  • Mechanical problems in the gearbox

How to Fix

  1. Check the level and condition of the transmission fluid
  2. Inspect the sensor wiring and connectors for damage
  3. Check sensor resistance according to manufacturer specifications
  4. If necessary, replace the gear range sensor
  5. Reset the error code and check if it returns

Related codes

Error P2800 by Vehicle Brand