LEMON Manuals: Even more car manuals for everyone: 1960-2025

Home >> Chevrolet >> 2002 >> Prizm Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics - 1.8L >> Diagnostic Tests >> DTC P0420: Catalyst System Low Efficiency >> Conditions For Setting DTC

April 5, 2026: LEMON Manuals is launched! Read the announcement.

Conditions For Setting DTC

The HO2S 2 signal is as active as HO2S 1 signal.

scientia non olet · About LEMON Manuals