LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mazda >> 2002 >> 626 ES, Automatic >> Repair and Diagnosis >> Brakes >> Anti-Lock/Traction Control System >> DTC U2021: Engine Control System
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC U2021: Engine Control System

Diagnostic Procedure 

Fig 1: DTC U2021 Detection Condition & Possible Cause
G01135629Courtesy of MAZDA MOTORS CORP.
Fig 2: DTC U2021 Inspection & Action
G01135630Courtesy of MAZDA MOTORS CORP.
scientia non olet · About LEMON Manuals