OBD Guide

P2569

Direct Ozone Reduction Catalyst Temperature Sensor Circuit Low

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

Symptoms

  • Check Engine light comes on
  • Deterioration of engine performance
  • Increased fuel consumption
  • Increased level of harmful emissions
  • Unstable operation at idle

Causes

  • Malfunction of the catalyst temperature sensor
  • Open or short circuit in the sensor circuit
  • Poor contact in connectors
  • Wiring harness damage
  • Malfunction of the engine control unit (rare)

How to Fix

  1. Check the integrity of the sensor circuit
  2. Test the catalyst temperature sensor
  3. Inspect connectors and contacts for corrosion
  4. Replace sensor if necessary
  5. Flash the control unit (if necessary)

Related codes

Error P2569 by Vehicle Brand