OBD Guide

P2553

Throttle/Fuel Inhibit A Circuit Range/Performance

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Unstable engine operation
  • Power reduction
  • Increased fuel consumption
  • Check Engine light comes on
  • Problems starting the engine

Causes

  • Throttle Position Sensor Malfunction
  • Open or short circuit in the circuit
  • Problems with the engine control unit
  • Contamination or mechanical damage to the throttle valve
  • Faulty relay or fuse

How to Fix

  1. Check the integrity of wiring and connectors
  2. Test the throttle position sensor
  3. Clean throttle body
  4. Check the operation of the engine control unit
  5. Replace faulty components

Related codes

Error P2553 by Vehicle Brand