LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 1995 >> Paseo Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Diagnostic Testing >> Code 21 - Oxygen Sensor Circuit >> Diagnosis & Repair
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnosis & Repair

If any other codes are present, refer to applicable code chart. If only Code 21 is present, replace oxygen sensor and retest.

scientia non olet · About LEMON Manuals