P2575

Direct Ozone Reduction Catalyst Deterioration Sensor Circuit High

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$28–89 (est.)

Symptoms

Check Engine Light Is On
Possible reduction in engine power
Deterioration of environmental indicators
Changing the operation of the exhaust gas recirculation system

Causes

Catalyst sensor malfunction
Open or short circuit in the sensor circuit
Wiring harness damage
Sensor connection problems
Engine ECU malfunction

How to Fix

Check the integrity of the sensor circuit
Inspect the sensor connectors and connections
Check sensor resistance
Replace the faulty sensor if necessary
Check the operation of the engine ECU

Related codes

P2574 P2576 P0420